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refactor(assets): database layer — split queries into modules and merge migrations

Browse Source 
- Split monolithic queries.py into modular query modules (asset, asset_reference, common, tags)
- Absorb bulk_ops.py and tags.py into query modules
- Merge migrations 0002-0005 into single migration (0002_merge_to_asset_references)
- Update models.py (merge AssetInfo/AssetCacheState into AssetReference)
- Enable SQLite foreign key enforcement
- Add comprehensive query-layer tests

Co-authored-by: Amp <amp@ampcode.com>
Amp-Thread-ID: https://ampcode.com/threads/T-019c917d-82b5-7448-a04f-9cd59c69d0a2
This commit is contained in:
Luke Mino-Altherr
2026-02-24 11:58:54 -08:00
parent bcf1a1fab1
commit 21a9ab7f48
19 changed files with 3792 additions and 1336 deletions
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204
app/assets/database/bulk_ops.py
View File

@@ -1,204 +0,0 @@
import os
import uuid
import sqlalchemy
from typing import Iterable
from sqlalchemy.orm import Session
from sqlalchemy.dialects import sqlite
from app.assets.helpers import utcnow
from app.assets.database.models import Asset, AssetCacheState, AssetInfo, AssetInfoTag, AssetInfoMeta
MAX_BIND_PARAMS = 800
def _chunk_rows(rows: list[dict], cols_per_row: int, max_bind_params: int) -> Iterable[list[dict]]:
if not rows:
return []
rows_per_stmt = max(1, max_bind_params // max(1, cols_per_row))
for i in range(0, len(rows), rows_per_stmt):
yield rows[i:i + rows_per_stmt]
def _iter_chunks(seq, n: int):
for i in range(0, len(seq), n):
yield seq[i:i + n]
def _rows_per_stmt(cols: int) -> int:
return max(1, MAX_BIND_PARAMS // max(1, cols))
def seed_from_paths_batch(
session: Session,
*,
specs: list[dict],
owner_id: str = "",
) -> dict:
"""Each spec is a dict with keys:
- abs_path: str
- size_bytes: int
- mtime_ns: int
- info_name: str
- tags: list[str]
- fname: Optional[str]
"""
if not specs:
return {"inserted_infos": 0, "won_states": 0, "lost_states": 0}
now = utcnow()
asset_rows: list[dict] = []
state_rows: list[dict] = []
path_to_asset: dict[str, str] = {}
asset_to_info: dict[str, dict] = {} # asset_id -> prepared info row
path_list: list[str] = []
for sp in specs:
ap = os.path.abspath(sp["abs_path"])
aid = str(uuid.uuid4())
iid = str(uuid.uuid4())
path_list.append(ap)
path_to_asset[ap] = aid
asset_rows.append(
{
"id": aid,
"hash": None,
"size_bytes": sp["size_bytes"],
"mime_type": None,
"created_at": now,
}
)
state_rows.append(
{
"asset_id": aid,
"file_path": ap,
"mtime_ns": sp["mtime_ns"],
}
)
asset_to_info[aid] = {
"id": iid,
"owner_id": owner_id,
"name": sp["info_name"],
"asset_id": aid,
"preview_id": None,
"user_metadata": {"filename": sp["fname"]} if sp["fname"] else None,
"created_at": now,
"updated_at": now,
"last_access_time": now,
"_tags": sp["tags"],
"_filename": sp["fname"],
}
# insert all seed Assets (hash=NULL)
ins_asset = sqlite.insert(Asset)
for chunk in _iter_chunks(asset_rows, _rows_per_stmt(5)):
session.execute(ins_asset, chunk)
# try to claim AssetCacheState (file_path)
# Insert with ON CONFLICT DO NOTHING, then query to find which paths were actually inserted
ins_state = (
sqlite.insert(AssetCacheState)
.on_conflict_do_nothing(index_elements=[AssetCacheState.file_path])
)
for chunk in _iter_chunks(state_rows, _rows_per_stmt(3)):
session.execute(ins_state, chunk)
# Query to find which of our paths won (were actually inserted)
winners_by_path: set[str] = set()
for chunk in _iter_chunks(path_list, MAX_BIND_PARAMS):
result = session.execute(
sqlalchemy.select(AssetCacheState.file_path)
.where(AssetCacheState.file_path.in_(chunk))
.where(AssetCacheState.asset_id.in_([path_to_asset[p] for p in chunk]))
)
winners_by_path.update(result.scalars().all())
all_paths_set = set(path_list)
losers_by_path = all_paths_set - winners_by_path
lost_assets = [path_to_asset[p] for p in losers_by_path]
if lost_assets: # losers get their Asset removed
for id_chunk in _iter_chunks(lost_assets, MAX_BIND_PARAMS):
session.execute(sqlalchemy.delete(Asset).where(Asset.id.in_(id_chunk)))
if not winners_by_path:
return {"inserted_infos": 0, "won_states": 0, "lost_states": len(losers_by_path)}
# insert AssetInfo only for winners
# Insert with ON CONFLICT DO NOTHING, then query to find which were actually inserted
winner_info_rows = [asset_to_info[path_to_asset[p]] for p in winners_by_path]
ins_info = (
sqlite.insert(AssetInfo)
.on_conflict_do_nothing(index_elements=[AssetInfo.asset_id, AssetInfo.owner_id, AssetInfo.name])
)
for chunk in _iter_chunks(winner_info_rows, _rows_per_stmt(9)):
session.execute(ins_info, chunk)
# Query to find which info rows were actually inserted (by matching our generated IDs)
all_info_ids = [row["id"] for row in winner_info_rows]
inserted_info_ids: set[str] = set()
for chunk in _iter_chunks(all_info_ids, MAX_BIND_PARAMS):
result = session.execute(
sqlalchemy.select(AssetInfo.id).where(AssetInfo.id.in_(chunk))
)
inserted_info_ids.update(result.scalars().all())
# build and insert tag + meta rows for the AssetInfo
tag_rows: list[dict] = []
meta_rows: list[dict] = []
if inserted_info_ids:
for row in winner_info_rows:
iid = row["id"]
if iid not in inserted_info_ids:
continue
for t in row["_tags"]:
tag_rows.append({
"asset_info_id": iid,
"tag_name": t,
"origin": "automatic",
"added_at": now,
})
if row["_filename"]:
meta_rows.append(
{
"asset_info_id": iid,
"key": "filename",
"ordinal": 0,
"val_str": row["_filename"],
"val_num": None,
"val_bool": None,
"val_json": None,
}
)
bulk_insert_tags_and_meta(session, tag_rows=tag_rows, meta_rows=meta_rows, max_bind_params=MAX_BIND_PARAMS)
return {
"inserted_infos": len(inserted_info_ids),
"won_states": len(winners_by_path),
"lost_states": len(losers_by_path),
}
def bulk_insert_tags_and_meta(
session: Session,
*,
tag_rows: list[dict],
meta_rows: list[dict],
max_bind_params: int,
) -> None:
"""Batch insert into asset_info_tags and asset_info_meta with ON CONFLICT DO NOTHING.
- tag_rows keys: asset_info_id, tag_name, origin, added_at
- meta_rows keys: asset_info_id, key, ordinal, val_str, val_num, val_bool, val_json
"""
if tag_rows:
ins_links = (
sqlite.insert(AssetInfoTag)
.on_conflict_do_nothing(index_elements=[AssetInfoTag.asset_info_id, AssetInfoTag.tag_name])
)
for chunk in _chunk_rows(tag_rows, cols_per_row=4, max_bind_params=max_bind_params):
session.execute(ins_links, chunk)
if meta_rows:
ins_meta = (
sqlite.insert(AssetInfoMeta)
.on_conflict_do_nothing(
index_elements=[AssetInfoMeta.asset_info_id, AssetInfoMeta.key, AssetInfoMeta.ordinal]
)
)
for chunk in _chunk_rows(meta_rows, cols_per_row=7, max_bind_params=max_bind_params):
session.execute(ins_meta, chunk)

198
app/assets/database/models.py
View File

@@ -2,8 +2,8 @@ from __future__ import annotations
import uuid
from datetime import datetime
from typing import Any
from sqlalchemy import (
JSON,
BigInteger,
@@ -16,48 +16,43 @@ from sqlalchemy import (
Numeric,
String,
Text,
UniqueConstraint,
)
from sqlalchemy.orm import Mapped, foreign, mapped_column, relationship
from app.assets.helpers import utcnow
from app.database.models import to_dict, Base
from app.assets.helpers import get_utc_now
from app.database.models import Base, to_dict
class Asset(Base):
__tablename__ = "assets"
id: Mapped[str] = mapped_column(String(36), primary_key=True, default=lambda: str(uuid.uuid4()))
id: Mapped[str] = mapped_column(
String(36), primary_key=True, default=lambda: str(uuid.uuid4())
)
hash: Mapped[str | None] = mapped_column(String(256), nullable=True)
size_bytes: Mapped[int] = mapped_column(BigInteger, nullable=False, default=0)
mime_type: Mapped[str | None] = mapped_column(String(255))
created_at: Mapped[datetime] = mapped_column(
DateTime(timezone=False), nullable=False, default=utcnow
DateTime(timezone=False), nullable=False, default=get_utc_now
)
infos: Mapped[list[AssetInfo]] = relationship(
"AssetInfo",
references: Mapped[list[AssetReference]] = relationship(
"AssetReference",
back_populates="asset",
primaryjoin=lambda: Asset.id == foreign(AssetInfo.asset_id),
foreign_keys=lambda: [AssetInfo.asset_id],
primaryjoin=lambda: Asset.id == foreign(AssetReference.asset_id),
foreign_keys=lambda: [AssetReference.asset_id],
cascade="all,delete-orphan",
passive_deletes=True,
)
preview_of: Mapped[list[AssetInfo]] = relationship(
"AssetInfo",
preview_of: Mapped[list[AssetReference]] = relationship(
"AssetReference",
back_populates="preview_asset",
primaryjoin=lambda: Asset.id == foreign(AssetInfo.preview_id),
foreign_keys=lambda: [AssetInfo.preview_id],
primaryjoin=lambda: Asset.id == foreign(AssetReference.preview_id),
foreign_keys=lambda: [AssetReference.preview_id],
viewonly=True,
)
cache_states: Mapped[list[AssetCacheState]] = relationship(
back_populates="asset",
cascade="all, delete-orphan",
passive_deletes=True,
)
__table_args__ = (
Index("uq_assets_hash", "hash", unique=True),
Index("ix_assets_mime_type", "mime_type"),
@@ -71,47 +66,52 @@ class Asset(Base):
return f"<Asset id={self.id} hash={(self.hash or '')[:12]}>"
class AssetCacheState(Base):
__tablename__ = "asset_cache_state"
class AssetReference(Base):
"""Unified model combining file cache state and user-facing metadata.
id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
asset_id: Mapped[str] = mapped_column(String(36), ForeignKey("assets.id", ondelete="CASCADE"), nullable=False)
file_path: Mapped[str] = mapped_column(Text, nullable=False)
mtime_ns: Mapped[int | None] = mapped_column(BigInteger, nullable=True)
needs_verify: Mapped[bool] = mapped_column(Boolean, nullable=False, default=False)
Each row represents either:
- A filesystem reference (file_path is set) with cache state
- An API-created reference (file_path is NULL) without cache state
"""
asset: Mapped[Asset] = relationship(back_populates="cache_states")
__tablename__ = "asset_references"
__table_args__ = (
Index("ix_asset_cache_state_file_path", "file_path"),
Index("ix_asset_cache_state_asset_id", "asset_id"),
CheckConstraint("(mtime_ns IS NULL) OR (mtime_ns >= 0)", name="ck_acs_mtime_nonneg"),
UniqueConstraint("file_path", name="uq_asset_cache_state_file_path"),
id: Mapped[str] = mapped_column(
String(36), primary_key=True, default=lambda: str(uuid.uuid4())
)
asset_id: Mapped[str] = mapped_column(
String(36), ForeignKey("assets.id", ondelete="CASCADE"), nullable=False
)
def to_dict(self, include_none: bool = False) -> dict[str, Any]:
return to_dict(self, include_none=include_none)
# Cache state fields (from former AssetCacheState)
file_path: Mapped[str | None] = mapped_column(Text, nullable=True)
mtime_ns: Mapped[int | None] = mapped_column(BigInteger, nullable=True)
needs_verify: Mapped[bool] = mapped_column(Boolean, nullable=False, default=False)
is_missing: Mapped[bool] = mapped_column(Boolean, nullable=False, default=False)
enrichment_level: Mapped[int] = mapped_column(Integer, nullable=False, default=0)
def __repr__(self) -> str:
return f"<AssetCacheState id={self.id} asset_id={self.asset_id} path={self.file_path!r}>"
class AssetInfo(Base):
__tablename__ = "assets_info"
id: Mapped[str] = mapped_column(String(36), primary_key=True, default=lambda: str(uuid.uuid4()))
# Info fields (from former AssetInfo)
owner_id: Mapped[str] = mapped_column(String(128), nullable=False, default="")
name: Mapped[str] = mapped_column(String(512), nullable=False)
asset_id: Mapped[str] = mapped_column(String(36), ForeignKey("assets.id", ondelete="RESTRICT"), nullable=False)
preview_id: Mapped[str | None] = mapped_column(String(36), ForeignKey("assets.id", ondelete="SET NULL"))
user_metadata: Mapped[dict[str, Any] | None] = mapped_column(JSON(none_as_null=True))
created_at: Mapped[datetime] = mapped_column(DateTime(timezone=False), nullable=False, default=utcnow)
updated_at: Mapped[datetime] = mapped_column(DateTime(timezone=False), nullable=False, default=utcnow)
last_access_time: Mapped[datetime] = mapped_column(DateTime(timezone=False), nullable=False, default=utcnow)
preview_id: Mapped[str | None] = mapped_column(
String(36), ForeignKey("assets.id", ondelete="SET NULL")
)
user_metadata: Mapped[dict[str, Any] | None] = mapped_column(
JSON(none_as_null=True)
)
created_at: Mapped[datetime] = mapped_column(
DateTime(timezone=False), nullable=False, default=get_utc_now
)
updated_at: Mapped[datetime] = mapped_column(
DateTime(timezone=False), nullable=False, default=get_utc_now
)
last_access_time: Mapped[datetime] = mapped_column(
DateTime(timezone=False), nullable=False, default=get_utc_now
)
asset: Mapped[Asset] = relationship(
"Asset",
back_populates="infos",
back_populates="references",
foreign_keys=[asset_id],
lazy="selectin",
)
@@ -121,35 +121,44 @@ class AssetInfo(Base):
foreign_keys=[preview_id],
)
metadata_entries: Mapped[list[AssetInfoMeta]] = relationship(
back_populates="asset_info",
metadata_entries: Mapped[list[AssetReferenceMeta]] = relationship(
back_populates="asset_reference",
cascade="all,delete-orphan",
passive_deletes=True,
)
tag_links: Mapped[list[AssetInfoTag]] = relationship(
back_populates="asset_info",
tag_links: Mapped[list[AssetReferenceTag]] = relationship(
back_populates="asset_reference",
cascade="all,delete-orphan",
passive_deletes=True,
overlaps="tags,asset_infos",
overlaps="tags,asset_references",
)
tags: Mapped[list[Tag]] = relationship(
secondary="asset_info_tags",
back_populates="asset_infos",
secondary="asset_reference_tags",
back_populates="asset_references",
lazy="selectin",
viewonly=True,
overlaps="tag_links,asset_info_links,asset_infos,tag",
overlaps="tag_links,asset_reference_links,asset_references,tag",
)
__table_args__ = (
UniqueConstraint("asset_id", "owner_id", "name", name="uq_assets_info_asset_owner_name"),
Index("ix_assets_info_owner_name", "owner_id", "name"),
Index("ix_assets_info_owner_id", "owner_id"),
Index("ix_assets_info_asset_id", "asset_id"),
Index("ix_assets_info_name", "name"),
Index("ix_assets_info_created_at", "created_at"),
Index("ix_assets_info_last_access_time", "last_access_time"),
Index("uq_asset_references_file_path", "file_path", unique=True),
Index("ix_asset_references_asset_id", "asset_id"),
Index("ix_asset_references_owner_id", "owner_id"),
Index("ix_asset_references_name", "name"),
Index("ix_asset_references_is_missing", "is_missing"),
Index("ix_asset_references_enrichment_level", "enrichment_level"),
Index("ix_asset_references_created_at", "created_at"),
Index("ix_asset_references_last_access_time", "last_access_time"),
Index("ix_asset_references_owner_name", "owner_id", "name"),
CheckConstraint(
"(mtime_ns IS NULL) OR (mtime_ns >= 0)", name="ck_ar_mtime_nonneg"
),
CheckConstraint(
"enrichment_level >= 0 AND enrichment_level <= 2",
name="ck_ar_enrichment_level_range",
),
)
def to_dict(self, include_none: bool = False) -> dict[str, Any]:
@@ -158,14 +167,17 @@ class AssetInfo(Base):
return data
def __repr__(self) -> str:
return f"<AssetInfo id={self.id} name={self.name!r} asset_id={self.asset_id}>"
path_part = f" path={self.file_path!r}" if self.file_path else ""
return f"<AssetReference id={self.id} name={self.name!r}{path_part}>"
class AssetInfoMeta(Base):
__tablename__ = "asset_info_meta"
class AssetReferenceMeta(Base):
__tablename__ = "asset_reference_meta"
asset_info_id: Mapped[str] = mapped_column(
String(36), ForeignKey("assets_info.id", ondelete="CASCADE"), primary_key=True
asset_reference_id: Mapped[str] = mapped_column(
String(36),
ForeignKey("asset_references.id", ondelete="CASCADE"),
primary_key=True,
)
key: Mapped[str] = mapped_column(String(256), primary_key=True)
ordinal: Mapped[int] = mapped_column(Integer, primary_key=True, default=0)
@@ -175,36 +187,40 @@ class AssetInfoMeta(Base):
val_bool: Mapped[bool | None] = mapped_column(Boolean, nullable=True)
val_json: Mapped[Any | None] = mapped_column(JSON(none_as_null=True), nullable=True)
asset_info: Mapped[AssetInfo] = relationship(back_populates="metadata_entries")
asset_reference: Mapped[AssetReference] = relationship(
back_populates="metadata_entries"
)
__table_args__ = (
Index("ix_asset_info_meta_key", "key"),
Index("ix_asset_info_meta_key_val_str", "key", "val_str"),
Index("ix_asset_info_meta_key_val_num", "key", "val_num"),
Index("ix_asset_info_meta_key_val_bool", "key", "val_bool"),
Index("ix_asset_reference_meta_key", "key"),
Index("ix_asset_reference_meta_key_val_str", "key", "val_str"),
Index("ix_asset_reference_meta_key_val_num", "key", "val_num"),
Index("ix_asset_reference_meta_key_val_bool", "key", "val_bool"),
)
class AssetInfoTag(Base):
__tablename__ = "asset_info_tags"
class AssetReferenceTag(Base):
__tablename__ = "asset_reference_tags"
asset_info_id: Mapped[str] = mapped_column(
String(36), ForeignKey("assets_info.id", ondelete="CASCADE"), primary_key=True
asset_reference_id: Mapped[str] = mapped_column(
String(36),
ForeignKey("asset_references.id", ondelete="CASCADE"),
primary_key=True,
)
tag_name: Mapped[str] = mapped_column(
String(512), ForeignKey("tags.name", ondelete="RESTRICT"), primary_key=True
)
origin: Mapped[str] = mapped_column(String(32), nullable=False, default="manual")
added_at: Mapped[datetime] = mapped_column(
DateTime(timezone=False), nullable=False, default=utcnow
DateTime(timezone=False), nullable=False, default=get_utc_now
)
asset_info: Mapped[AssetInfo] = relationship(back_populates="tag_links")
tag: Mapped[Tag] = relationship(back_populates="asset_info_links")
asset_reference: Mapped[AssetReference] = relationship(back_populates="tag_links")
tag: Mapped[Tag] = relationship(back_populates="asset_reference_links")
__table_args__ = (
Index("ix_asset_info_tags_tag_name", "tag_name"),
Index("ix_asset_info_tags_asset_info_id", "asset_info_id"),
Index("ix_asset_reference_tags_tag_name", "tag_name"),
Index("ix_asset_reference_tags_asset_reference_id", "asset_reference_id"),
)
@@ -214,20 +230,18 @@ class Tag(Base):
name: Mapped[str] = mapped_column(String(512), primary_key=True)
tag_type: Mapped[str] = mapped_column(String(32), nullable=False, default="user")
asset_info_links: Mapped[list[AssetInfoTag]] = relationship(
asset_reference_links: Mapped[list[AssetReferenceTag]] = relationship(
back_populates="tag",
overlaps="asset_infos,tags",
overlaps="asset_references,tags",
)
asset_infos: Mapped[list[AssetInfo]] = relationship(
secondary="asset_info_tags",
asset_references: Mapped[list[AssetReference]] = relationship(
secondary="asset_reference_tags",
back_populates="tags",
viewonly=True,
overlaps="asset_info_links,tag_links,tags,asset_info",
overlaps="asset_reference_links,tag_links,tags,asset_reference",
)
__table_args__ = (
Index("ix_tags_tag_type", "tag_type"),
)
__table_args__ = (Index("ix_tags_tag_type", "tag_type"),)
def __repr__(self) -> str:
return f"<Tag {self.name}>"

976
app/assets/database/queries.py
View File

@@ -1,976 +0,0 @@
import os
import logging
import sqlalchemy as sa
from collections import defaultdict
from datetime import datetime
from typing import Iterable, Any
from sqlalchemy import select, delete, exists, func
from sqlalchemy.dialects import sqlite
from sqlalchemy.exc import IntegrityError
from sqlalchemy.orm import Session, contains_eager, noload
from app.assets.database.models import Asset, AssetInfo, AssetCacheState, AssetInfoMeta, AssetInfoTag, Tag
from app.assets.helpers import (
compute_relative_filename, escape_like_prefix, normalize_tags, project_kv, utcnow
)
from typing import Sequence
def visible_owner_clause(owner_id: str) -> sa.sql.ClauseElement:
"""Build owner visibility predicate for reads. Owner-less rows are visible to everyone."""
owner_id = (owner_id or "").strip()
if owner_id == "":
return AssetInfo.owner_id == ""
return AssetInfo.owner_id.in_(["", owner_id])
def pick_best_live_path(states: Sequence[AssetCacheState]) -> str:
"""
Return the best on-disk path among cache states:
1) Prefer a path that exists with needs_verify == False (already verified).
2) Otherwise, pick the first path that exists.
3) Otherwise return empty string.
"""
alive = [s for s in states if getattr(s, "file_path", None) and os.path.isfile(s.file_path)]
if not alive:
return ""
for s in alive:
if not getattr(s, "needs_verify", False):
return s.file_path
return alive[0].file_path
def apply_tag_filters(
stmt: sa.sql.Select,
include_tags: Sequence[str] | None = None,
exclude_tags: Sequence[str] | None = None,
) -> sa.sql.Select:
"""include_tags: every tag must be present; exclude_tags: none may be present."""
include_tags = normalize_tags(include_tags)
exclude_tags = normalize_tags(exclude_tags)
if include_tags:
for tag_name in include_tags:
stmt = stmt.where(
exists().where(
(AssetInfoTag.asset_info_id == AssetInfo.id)
& (AssetInfoTag.tag_name == tag_name)
)
)
if exclude_tags:
stmt = stmt.where(
~exists().where(
(AssetInfoTag.asset_info_id == AssetInfo.id)
& (AssetInfoTag.tag_name.in_(exclude_tags))
)
)
return stmt
def apply_metadata_filter(
stmt: sa.sql.Select,
metadata_filter: dict | None = None,
) -> sa.sql.Select:
"""Apply filters using asset_info_meta projection table."""
if not metadata_filter:
return stmt
def _exists_for_pred(key: str, *preds) -> sa.sql.ClauseElement:
return sa.exists().where(
AssetInfoMeta.asset_info_id == AssetInfo.id,
AssetInfoMeta.key == key,
*preds,
)
def _exists_clause_for_value(key: str, value) -> sa.sql.ClauseElement:
if value is None:
no_row_for_key = sa.not_(
sa.exists().where(
AssetInfoMeta.asset_info_id == AssetInfo.id,
AssetInfoMeta.key == key,
)
)
null_row = _exists_for_pred(
key,
AssetInfoMeta.val_json.is_(None),
AssetInfoMeta.val_str.is_(None),
AssetInfoMeta.val_num.is_(None),
AssetInfoMeta.val_bool.is_(None),
)
return sa.or_(no_row_for_key, null_row)
if isinstance(value, bool):
return _exists_for_pred(key, AssetInfoMeta.val_bool == bool(value))
if isinstance(value, (int, float)):
from decimal import Decimal
num = value if isinstance(value, Decimal) else Decimal(str(value))
return _exists_for_pred(key, AssetInfoMeta.val_num == num)
if isinstance(value, str):
return _exists_for_pred(key, AssetInfoMeta.val_str == value)
return _exists_for_pred(key, AssetInfoMeta.val_json == value)
for k, v in metadata_filter.items():
if isinstance(v, list):
ors = [_exists_clause_for_value(k, elem) for elem in v]
if ors:
stmt = stmt.where(sa.or_(*ors))
else:
stmt = stmt.where(_exists_clause_for_value(k, v))
return stmt
def asset_exists_by_hash(
session: Session,
*,
asset_hash: str,
) -> bool:
"""
Check if an asset with a given hash exists in database.
"""
row = (
session.execute(
select(sa.literal(True)).select_from(Asset).where(Asset.hash == asset_hash).limit(1)
)
).first()
return row is not None
def asset_info_exists_for_asset_id(
session: Session,
*,
asset_id: str,
) -> bool:
q = (
select(sa.literal(True))
.select_from(AssetInfo)
.where(AssetInfo.asset_id == asset_id)
.limit(1)
)
return (session.execute(q)).first() is not None
def get_asset_by_hash(
session: Session,
*,
asset_hash: str,
) -> Asset | None:
return (
session.execute(select(Asset).where(Asset.hash == asset_hash).limit(1))
).scalars().first()
def get_asset_info_by_id(
session: Session,
*,
asset_info_id: str,
) -> AssetInfo | None:
return session.get(AssetInfo, asset_info_id)
def list_asset_infos_page(
session: Session,
owner_id: str = "",
include_tags: Sequence[str] | None = None,
exclude_tags: Sequence[str] | None = None,
name_contains: str | None = None,
metadata_filter: dict | None = None,
limit: int = 20,
offset: int = 0,
sort: str = "created_at",
order: str = "desc",
) -> tuple[list[AssetInfo], dict[str, list[str]], int]:
base = (
select(AssetInfo)
.join(Asset, Asset.id == AssetInfo.asset_id)
.options(contains_eager(AssetInfo.asset), noload(AssetInfo.tags))
.where(visible_owner_clause(owner_id))
)
if name_contains:
escaped, esc = escape_like_prefix(name_contains)
base = base.where(AssetInfo.name.ilike(f"%{escaped}%", escape=esc))
base = apply_tag_filters(base, include_tags, exclude_tags)
base = apply_metadata_filter(base, metadata_filter)
sort = (sort or "created_at").lower()
order = (order or "desc").lower()
sort_map = {
"name": AssetInfo.name,
"created_at": AssetInfo.created_at,
"updated_at": AssetInfo.updated_at,
"last_access_time": AssetInfo.last_access_time,
"size": Asset.size_bytes,
}
sort_col = sort_map.get(sort, AssetInfo.created_at)
sort_exp = sort_col.desc() if order == "desc" else sort_col.asc()
base = base.order_by(sort_exp).limit(limit).offset(offset)
count_stmt = (
select(sa.func.count())
.select_from(AssetInfo)
.join(Asset, Asset.id == AssetInfo.asset_id)
.where(visible_owner_clause(owner_id))
)
if name_contains:
escaped, esc = escape_like_prefix(name_contains)
count_stmt = count_stmt.where(AssetInfo.name.ilike(f"%{escaped}%", escape=esc))
count_stmt = apply_tag_filters(count_stmt, include_tags, exclude_tags)
count_stmt = apply_metadata_filter(count_stmt, metadata_filter)
total = int((session.execute(count_stmt)).scalar_one() or 0)
infos = (session.execute(base)).unique().scalars().all()
id_list: list[str] = [i.id for i in infos]
tag_map: dict[str, list[str]] = defaultdict(list)
if id_list:
rows = session.execute(
select(AssetInfoTag.asset_info_id, Tag.name)
.join(Tag, Tag.name == AssetInfoTag.tag_name)
.where(AssetInfoTag.asset_info_id.in_(id_list))
.order_by(AssetInfoTag.added_at)
)
for aid, tag_name in rows.all():
tag_map[aid].append(tag_name)
return infos, tag_map, total
def fetch_asset_info_asset_and_tags(
session: Session,
asset_info_id: str,
owner_id: str = "",
) -> tuple[AssetInfo, Asset, list[str]] | None:
stmt = (
select(AssetInfo, Asset, Tag.name)
.join(Asset, Asset.id == AssetInfo.asset_id)
.join(AssetInfoTag, AssetInfoTag.asset_info_id == AssetInfo.id, isouter=True)
.join(Tag, Tag.name == AssetInfoTag.tag_name, isouter=True)
.where(
AssetInfo.id == asset_info_id,
visible_owner_clause(owner_id),
)
.options(noload(AssetInfo.tags))
.order_by(Tag.name.asc())
)
rows = (session.execute(stmt)).all()
if not rows:
return None
first_info, first_asset, _ = rows[0]
tags: list[str] = []
seen: set[str] = set()
for _info, _asset, tag_name in rows:
if tag_name and tag_name not in seen:
seen.add(tag_name)
tags.append(tag_name)
return first_info, first_asset, tags
def fetch_asset_info_and_asset(
session: Session,
*,
asset_info_id: str,
owner_id: str = "",
) -> tuple[AssetInfo, Asset] | None:
stmt = (
select(AssetInfo, Asset)
.join(Asset, Asset.id == AssetInfo.asset_id)
.where(
AssetInfo.id == asset_info_id,
visible_owner_clause(owner_id),
)
.limit(1)
.options(noload(AssetInfo.tags))
)
row = session.execute(stmt)
pair = row.first()
if not pair:
return None
return pair[0], pair[1]
def list_cache_states_by_asset_id(
session: Session, *, asset_id: str
) -> Sequence[AssetCacheState]:
return (
session.execute(
select(AssetCacheState)
.where(AssetCacheState.asset_id == asset_id)
.order_by(AssetCacheState.id.asc())
)
).scalars().all()
def touch_asset_info_by_id(
session: Session,
*,
asset_info_id: str,
ts: datetime | None = None,
only_if_newer: bool = True,
) -> None:
ts = ts or utcnow()
stmt = sa.update(AssetInfo).where(AssetInfo.id == asset_info_id)
if only_if_newer:
stmt = stmt.where(
sa.or_(AssetInfo.last_access_time.is_(None), AssetInfo.last_access_time < ts)
)
session.execute(stmt.values(last_access_time=ts))
def create_asset_info_for_existing_asset(
session: Session,
*,
asset_hash: str,
name: str,
user_metadata: dict | None = None,
tags: Sequence[str] | None = None,
tag_origin: str = "manual",
owner_id: str = "",
) -> AssetInfo:
"""Create or return an existing AssetInfo for an Asset identified by asset_hash."""
now = utcnow()
asset = get_asset_by_hash(session, asset_hash=asset_hash)
if not asset:
raise ValueError(f"Unknown asset hash {asset_hash}")
info = AssetInfo(
owner_id=owner_id,
name=name,
asset_id=asset.id,
preview_id=None,
created_at=now,
updated_at=now,
last_access_time=now,
)
try:
with session.begin_nested():
session.add(info)
session.flush()
except IntegrityError:
existing = (
session.execute(
select(AssetInfo)
.options(noload(AssetInfo.tags))
.where(
AssetInfo.asset_id == asset.id,
AssetInfo.name == name,
AssetInfo.owner_id == owner_id,
)
.limit(1)
)
).unique().scalars().first()
if not existing:
raise RuntimeError("AssetInfo upsert failed to find existing row after conflict.")
return existing
# metadata["filename"] hack
new_meta = dict(user_metadata or {})
computed_filename = None
try:
p = pick_best_live_path(list_cache_states_by_asset_id(session, asset_id=asset.id))
if p:
computed_filename = compute_relative_filename(p)
except Exception:
computed_filename = None
if computed_filename:
new_meta["filename"] = computed_filename
if new_meta:
replace_asset_info_metadata_projection(
session,
asset_info_id=info.id,
user_metadata=new_meta,
)
if tags is not None:
set_asset_info_tags(
session,
asset_info_id=info.id,
tags=tags,
origin=tag_origin,
)
return info
def set_asset_info_tags(
session: Session,
*,
asset_info_id: str,
tags: Sequence[str],
origin: str = "manual",
) -> dict:
desired = normalize_tags(tags)
current = set(
tag_name for (tag_name,) in (
session.execute(select(AssetInfoTag.tag_name).where(AssetInfoTag.asset_info_id == asset_info_id))
).all()
)
to_add = [t for t in desired if t not in current]
to_remove = [t for t in current if t not in desired]
if to_add:
ensure_tags_exist(session, to_add, tag_type="user")
session.add_all([
AssetInfoTag(asset_info_id=asset_info_id, tag_name=t, origin=origin, added_at=utcnow())
for t in to_add
])
session.flush()
if to_remove:
session.execute(
delete(AssetInfoTag)
.where(AssetInfoTag.asset_info_id == asset_info_id, AssetInfoTag.tag_name.in_(to_remove))
)
session.flush()
return {"added": to_add, "removed": to_remove, "total": desired}
def replace_asset_info_metadata_projection(
session: Session,
*,
asset_info_id: str,
user_metadata: dict | None = None,
) -> None:
info = session.get(AssetInfo, asset_info_id)
if not info:
raise ValueError(f"AssetInfo {asset_info_id} not found")
info.user_metadata = user_metadata or {}
info.updated_at = utcnow()
session.flush()
session.execute(delete(AssetInfoMeta).where(AssetInfoMeta.asset_info_id == asset_info_id))
session.flush()
if not user_metadata:
return
rows: list[AssetInfoMeta] = []
for k, v in user_metadata.items():
for r in project_kv(k, v):
rows.append(
AssetInfoMeta(
asset_info_id=asset_info_id,
key=r["key"],
ordinal=int(r["ordinal"]),
val_str=r.get("val_str"),
val_num=r.get("val_num"),
val_bool=r.get("val_bool"),
val_json=r.get("val_json"),
)
)
if rows:
session.add_all(rows)
session.flush()
def ingest_fs_asset(
session: Session,
*,
asset_hash: str,
abs_path: str,
size_bytes: int,
mtime_ns: int,
mime_type: str | None = None,
info_name: str | None = None,
owner_id: str = "",
preview_id: str | None = None,
user_metadata: dict | None = None,
tags: Sequence[str] = (),
tag_origin: str = "manual",
require_existing_tags: bool = False,
) -> dict:
"""
Idempotently upsert:
- Asset by content hash (create if missing)
- AssetCacheState(file_path) pointing to asset_id
- Optionally AssetInfo + tag links and metadata projection
Returns flags and ids.
"""
locator = os.path.abspath(abs_path)
now = utcnow()
if preview_id:
if not session.get(Asset, preview_id):
preview_id = None
out: dict[str, Any] = {
"asset_created": False,
"asset_updated": False,
"state_created": False,
"state_updated": False,
"asset_info_id": None,
}
# 1) Asset by hash
asset = (
session.execute(select(Asset).where(Asset.hash == asset_hash).limit(1))
).scalars().first()
if not asset:
vals = {
"hash": asset_hash,
"size_bytes": int(size_bytes),
"mime_type": mime_type,
"created_at": now,
}
res = session.execute(
sqlite.insert(Asset)
.values(**vals)
.on_conflict_do_nothing(index_elements=[Asset.hash])
)
if int(res.rowcount or 0) > 0:
out["asset_created"] = True
asset = (
session.execute(
select(Asset).where(Asset.hash == asset_hash).limit(1)
)
).scalars().first()
if not asset:
raise RuntimeError("Asset row not found after upsert.")
else:
changed = False
if asset.size_bytes != int(size_bytes) and int(size_bytes) > 0:
asset.size_bytes = int(size_bytes)
changed = True
if mime_type and asset.mime_type != mime_type:
asset.mime_type = mime_type
changed = True
if changed:
out["asset_updated"] = True
# 2) AssetCacheState upsert by file_path (unique)
vals = {
"asset_id": asset.id,
"file_path": locator,
"mtime_ns": int(mtime_ns),
}
ins = (
sqlite.insert(AssetCacheState)
.values(**vals)
.on_conflict_do_nothing(index_elements=[AssetCacheState.file_path])
)
res = session.execute(ins)
if int(res.rowcount or 0) > 0:
out["state_created"] = True
else:
upd = (
sa.update(AssetCacheState)
.where(AssetCacheState.file_path == locator)
.where(
sa.or_(
AssetCacheState.asset_id != asset.id,
AssetCacheState.mtime_ns.is_(None),
AssetCacheState.mtime_ns != int(mtime_ns),
)
)
.values(asset_id=asset.id, mtime_ns=int(mtime_ns))
)
res2 = session.execute(upd)
if int(res2.rowcount or 0) > 0:
out["state_updated"] = True
# 3) Optional AssetInfo + tags + metadata
if info_name:
try:
with session.begin_nested():
info = AssetInfo(
owner_id=owner_id,
name=info_name,
asset_id=asset.id,
preview_id=preview_id,
created_at=now,
updated_at=now,
last_access_time=now,
)
session.add(info)
session.flush()
out["asset_info_id"] = info.id
except IntegrityError:
pass
existing_info = (
session.execute(
select(AssetInfo)
.where(
AssetInfo.asset_id == asset.id,
AssetInfo.name == info_name,
(AssetInfo.owner_id == owner_id),
)
.limit(1)
)
).unique().scalar_one_or_none()
if not existing_info:
raise RuntimeError("Failed to update or insert AssetInfo.")
if preview_id and existing_info.preview_id != preview_id:
existing_info.preview_id = preview_id
existing_info.updated_at = now
if existing_info.last_access_time < now:
existing_info.last_access_time = now
session.flush()
out["asset_info_id"] = existing_info.id
norm = [t.strip().lower() for t in (tags or []) if (t or "").strip()]
if norm and out["asset_info_id"] is not None:
if not require_existing_tags:
ensure_tags_exist(session, norm, tag_type="user")
existing_tag_names = set(
name for (name,) in (session.execute(select(Tag.name).where(Tag.name.in_(norm)))).all()
)
missing = [t for t in norm if t not in existing_tag_names]
if missing and require_existing_tags:
raise ValueError(f"Unknown tags: {missing}")
existing_links = set(
tag_name
for (tag_name,) in (
session.execute(
select(AssetInfoTag.tag_name).where(AssetInfoTag.asset_info_id == out["asset_info_id"])
)
).all()
)
to_add = [t for t in norm if t in existing_tag_names and t not in existing_links]
if to_add:
session.add_all(
[
AssetInfoTag(
asset_info_id=out["asset_info_id"],
tag_name=t,
origin=tag_origin,
added_at=now,
)
for t in to_add
]
)
session.flush()
# metadata["filename"] hack
if out["asset_info_id"] is not None:
primary_path = pick_best_live_path(list_cache_states_by_asset_id(session, asset_id=asset.id))
computed_filename = compute_relative_filename(primary_path) if primary_path else None
current_meta = existing_info.user_metadata or {}
new_meta = dict(current_meta)
if user_metadata is not None:
for k, v in user_metadata.items():
new_meta[k] = v
if computed_filename:
new_meta["filename"] = computed_filename
if new_meta != current_meta:
replace_asset_info_metadata_projection(
session,
asset_info_id=out["asset_info_id"],
user_metadata=new_meta,
)
try:
remove_missing_tag_for_asset_id(session, asset_id=asset.id)
except Exception:
logging.exception("Failed to clear 'missing' tag for asset %s", asset.id)
return out
def update_asset_info_full(
session: Session,
*,
asset_info_id: str,
name: str | None = None,
tags: Sequence[str] | None = None,
user_metadata: dict | None = None,
tag_origin: str = "manual",
asset_info_row: Any = None,
) -> AssetInfo:
if not asset_info_row:
info = session.get(AssetInfo, asset_info_id)
if not info:
raise ValueError(f"AssetInfo {asset_info_id} not found")
else:
info = asset_info_row
touched = False
if name is not None and name != info.name:
info.name = name
touched = True
computed_filename = None
try:
p = pick_best_live_path(list_cache_states_by_asset_id(session, asset_id=info.asset_id))
if p:
computed_filename = compute_relative_filename(p)
except Exception:
computed_filename = None
if user_metadata is not None:
new_meta = dict(user_metadata)
if computed_filename:
new_meta["filename"] = computed_filename
replace_asset_info_metadata_projection(
session, asset_info_id=asset_info_id, user_metadata=new_meta
)
touched = True
else:
if computed_filename:
current_meta = info.user_metadata or {}
if current_meta.get("filename") != computed_filename:
new_meta = dict(current_meta)
new_meta["filename"] = computed_filename
replace_asset_info_metadata_projection(
session, asset_info_id=asset_info_id, user_metadata=new_meta
)
touched = True
if tags is not None:
set_asset_info_tags(
session,
asset_info_id=asset_info_id,
tags=tags,
origin=tag_origin,
)
touched = True
if touched and user_metadata is None:
info.updated_at = utcnow()
session.flush()
return info
def delete_asset_info_by_id(
session: Session,
*,
asset_info_id: str,
owner_id: str,
) -> bool:
stmt = sa.delete(AssetInfo).where(
AssetInfo.id == asset_info_id,
visible_owner_clause(owner_id),
)
return int((session.execute(stmt)).rowcount or 0) > 0
def list_tags_with_usage(
session: Session,
prefix: str | None = None,
limit: int = 100,
offset: int = 0,
include_zero: bool = True,
order: str = "count_desc",
owner_id: str = "",
) -> tuple[list[tuple[str, str, int]], int]:
counts_sq = (
select(
AssetInfoTag.tag_name.label("tag_name"),
func.count(AssetInfoTag.asset_info_id).label("cnt"),
)
.select_from(AssetInfoTag)
.join(AssetInfo, AssetInfo.id == AssetInfoTag.asset_info_id)
.where(visible_owner_clause(owner_id))
.group_by(AssetInfoTag.tag_name)
.subquery()
)
q = (
select(
Tag.name,
Tag.tag_type,
func.coalesce(counts_sq.c.cnt, 0).label("count"),
)
.select_from(Tag)
.join(counts_sq, counts_sq.c.tag_name == Tag.name, isouter=True)
)
if prefix:
escaped, esc = escape_like_prefix(prefix.strip().lower())
q = q.where(Tag.name.like(escaped + "%", escape=esc))
if not include_zero:
q = q.where(func.coalesce(counts_sq.c.cnt, 0) > 0)
if order == "name_asc":
q = q.order_by(Tag.name.asc())
else:
q = q.order_by(func.coalesce(counts_sq.c.cnt, 0).desc(), Tag.name.asc())
total_q = select(func.count()).select_from(Tag)
if prefix:
escaped, esc = escape_like_prefix(prefix.strip().lower())
total_q = total_q.where(Tag.name.like(escaped + "%", escape=esc))
if not include_zero:
total_q = total_q.where(
Tag.name.in_(select(AssetInfoTag.tag_name).group_by(AssetInfoTag.tag_name))
)
rows = (session.execute(q.limit(limit).offset(offset))).all()
total = (session.execute(total_q)).scalar_one()
rows_norm = [(name, ttype, int(count or 0)) for (name, ttype, count) in rows]
return rows_norm, int(total or 0)
def ensure_tags_exist(session: Session, names: Iterable[str], tag_type: str = "user") -> None:
wanted = normalize_tags(list(names))
if not wanted:
return
rows = [{"name": n, "tag_type": tag_type} for n in list(dict.fromkeys(wanted))]
ins = (
sqlite.insert(Tag)
.values(rows)
.on_conflict_do_nothing(index_elements=[Tag.name])
)
session.execute(ins)
def get_asset_tags(session: Session, *, asset_info_id: str) -> list[str]:
return [
tag_name for (tag_name,) in (
session.execute(
select(AssetInfoTag.tag_name).where(AssetInfoTag.asset_info_id == asset_info_id)
)
).all()
]
def add_tags_to_asset_info(
session: Session,
*,
asset_info_id: str,
tags: Sequence[str],
origin: str = "manual",
create_if_missing: bool = True,
asset_info_row: Any = None,
) -> dict:
if not asset_info_row:
info = session.get(AssetInfo, asset_info_id)
if not info:
raise ValueError(f"AssetInfo {asset_info_id} not found")
norm = normalize_tags(tags)
if not norm:
total = get_asset_tags(session, asset_info_id=asset_info_id)
return {"added": [], "already_present": [], "total_tags": total}
if create_if_missing:
ensure_tags_exist(session, norm, tag_type="user")
current = {
tag_name
for (tag_name,) in (
session.execute(
sa.select(AssetInfoTag.tag_name).where(AssetInfoTag.asset_info_id == asset_info_id)
)
).all()
}
want = set(norm)
to_add = sorted(want - current)
if to_add:
with session.begin_nested() as nested:
try:
session.add_all(
[
AssetInfoTag(
asset_info_id=asset_info_id,
tag_name=t,
origin=origin,
added_at=utcnow(),
)
for t in to_add
]
)
session.flush()
except IntegrityError:
nested.rollback()
after = set(get_asset_tags(session, asset_info_id=asset_info_id))
return {
"added": sorted(((after - current) & want)),
"already_present": sorted(want & current),
"total_tags": sorted(after),
}
def remove_tags_from_asset_info(
session: Session,
*,
asset_info_id: str,
tags: Sequence[str],
) -> dict:
info = session.get(AssetInfo, asset_info_id)
if not info:
raise ValueError(f"AssetInfo {asset_info_id} not found")
norm = normalize_tags(tags)
if not norm:
total = get_asset_tags(session, asset_info_id=asset_info_id)
return {"removed": [], "not_present": [], "total_tags": total}
existing = {
tag_name
for (tag_name,) in (
session.execute(
sa.select(AssetInfoTag.tag_name).where(AssetInfoTag.asset_info_id == asset_info_id)
)
).all()
}
to_remove = sorted(set(t for t in norm if t in existing))
not_present = sorted(set(t for t in norm if t not in existing))
if to_remove:
session.execute(
delete(AssetInfoTag)
.where(
AssetInfoTag.asset_info_id == asset_info_id,
AssetInfoTag.tag_name.in_(to_remove),
)
)
session.flush()
total = get_asset_tags(session, asset_info_id=asset_info_id)
return {"removed": to_remove, "not_present": not_present, "total_tags": total}
def remove_missing_tag_for_asset_id(
session: Session,
*,
asset_id: str,
) -> None:
session.execute(
sa.delete(AssetInfoTag).where(
AssetInfoTag.asset_info_id.in_(sa.select(AssetInfo.id).where(AssetInfo.asset_id == asset_id)),
AssetInfoTag.tag_name == "missing",
)
)
def set_asset_info_preview(
session: Session,
*,
asset_info_id: str,
preview_asset_id: str | None = None,
) -> None:
"""Set or clear preview_id and bump updated_at. Raises on unknown IDs."""
info = session.get(AssetInfo, asset_info_id)
if not info:
raise ValueError(f"AssetInfo {asset_info_id} not found")
if preview_asset_id is None:
info.preview_id = None
else:
# validate preview asset exists
if not session.get(Asset, preview_asset_id):
raise ValueError(f"Preview Asset {preview_asset_id} not found")
info.preview_id = preview_asset_id
info.updated_at = utcnow()
session.flush()

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from app.assets.database.queries.asset import (
asset_exists_by_hash,
bulk_insert_assets,
get_asset_by_hash,
get_existing_asset_ids,
reassign_asset_references,
update_asset_hash_and_mime,
upsert_asset,
)
from app.assets.database.queries.asset_reference import (
CacheStateRow,
UnenrichedReferenceRow,
bulk_insert_references_ignore_conflicts,
bulk_update_enrichment_level,
bulk_update_is_missing,
bulk_update_needs_verify,
convert_metadata_to_rows,
delete_assets_by_ids,
delete_orphaned_seed_asset,
delete_reference_by_id,
delete_references_by_ids,
fetch_reference_and_asset,
fetch_reference_asset_and_tags,
get_or_create_reference,
get_reference_by_file_path,
get_reference_by_id,
get_reference_ids_by_ids,
get_references_by_paths_and_asset_ids,
get_references_for_prefixes,
get_unenriched_references,
get_unreferenced_unhashed_asset_ids,
insert_reference,
list_references_by_asset_id,
list_references_page,
mark_references_missing_outside_prefixes,
reference_exists_for_asset_id,
restore_references_by_paths,
set_reference_metadata,
set_reference_preview,
update_enrichment_level,
update_reference_access_time,
update_reference_name,
update_reference_timestamps,
update_reference_updated_at,
upsert_reference,
)
from app.assets.database.queries.tags import (
AddTagsDict,
RemoveTagsDict,
SetTagsDict,
add_missing_tag_for_asset_id,
add_tags_to_reference,
bulk_insert_tags_and_meta,
ensure_tags_exist,
get_reference_tags,
list_tags_with_usage,
remove_missing_tag_for_asset_id,
remove_tags_from_reference,
set_reference_tags,
)
__all__ = [
"AddTagsDict",
"CacheStateRow",
"RemoveTagsDict",
"SetTagsDict",
"UnenrichedReferenceRow",
"add_missing_tag_for_asset_id",
"add_tags_to_reference",
"asset_exists_by_hash",
"bulk_insert_assets",
"bulk_insert_references_ignore_conflicts",
"bulk_insert_tags_and_meta",
"bulk_update_enrichment_level",
"bulk_update_is_missing",
"bulk_update_needs_verify",
"convert_metadata_to_rows",
"delete_assets_by_ids",
"delete_orphaned_seed_asset",
"delete_reference_by_id",
"delete_references_by_ids",
"ensure_tags_exist",
"fetch_reference_and_asset",
"fetch_reference_asset_and_tags",
"get_asset_by_hash",
"get_existing_asset_ids",
"get_or_create_reference",
"get_reference_by_file_path",
"get_reference_by_id",
"get_reference_ids_by_ids",
"get_reference_tags",
"get_references_by_paths_and_asset_ids",
"get_references_for_prefixes",
"get_unenriched_references",
"get_unreferenced_unhashed_asset_ids",
"insert_reference",
"list_references_by_asset_id",
"list_references_page",
"list_tags_with_usage",
"mark_references_missing_outside_prefixes",
"reassign_asset_references",
"reference_exists_for_asset_id",
"remove_missing_tag_for_asset_id",
"remove_tags_from_reference",
"restore_references_by_paths",
"set_reference_metadata",
"set_reference_preview",
"set_reference_tags",
"update_asset_hash_and_mime",
"update_enrichment_level",
"update_reference_access_time",
"update_reference_name",
"update_reference_timestamps",
"update_reference_updated_at",
"upsert_asset",
"upsert_reference",
]

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import sqlalchemy as sa
from sqlalchemy import select
from sqlalchemy.dialects import sqlite
from sqlalchemy.orm import Session
from app.assets.database.models import Asset, AssetReference
from app.assets.database.queries.common import MAX_BIND_PARAMS, calculate_rows_per_statement, iter_chunks
def asset_exists_by_hash(
session: Session,
asset_hash: str,
) -> bool:
"""
Check if an asset with a given hash exists in database.
"""
row = (
session.execute(
select(sa.literal(True))
.select_from(Asset)
.where(Asset.hash == asset_hash)
.limit(1)
)
).first()
return row is not None
def get_asset_by_hash(
session: Session,
asset_hash: str,
) -> Asset | None:
return (
(session.execute(select(Asset).where(Asset.hash == asset_hash).limit(1)))
.scalars()
.first()
)
def upsert_asset(
session: Session,
asset_hash: str,
size_bytes: int,
mime_type: str | None = None,
) -> tuple[Asset, bool, bool]:
"""Upsert an Asset by hash. Returns (asset, created, updated)."""
vals = {"hash": asset_hash, "size_bytes": int(size_bytes)}
if mime_type:
vals["mime_type"] = mime_type
ins = (
sqlite.insert(Asset)
.values(**vals)
.on_conflict_do_nothing(index_elements=[Asset.hash])
)
res = session.execute(ins)
created = int(res.rowcount or 0) > 0
asset = (
session.execute(select(Asset).where(Asset.hash == asset_hash).limit(1))
.scalars()
.first()
)
if not asset:
raise RuntimeError("Asset row not found after upsert.")
updated = False
if not created:
changed = False
if asset.size_bytes != int(size_bytes) and int(size_bytes) > 0:
asset.size_bytes = int(size_bytes)
changed = True
if mime_type and asset.mime_type != mime_type:
asset.mime_type = mime_type
changed = True
if changed:
updated = True
return asset, created, updated
def bulk_insert_assets(
session: Session,
rows: list[dict],
) -> None:
"""Bulk insert Asset rows with ON CONFLICT DO NOTHING on hash."""
if not rows:
return
ins = sqlite.insert(Asset).on_conflict_do_nothing(index_elements=[Asset.hash])
for chunk in iter_chunks(rows, calculate_rows_per_statement(5)):
session.execute(ins, chunk)
def get_existing_asset_ids(
session: Session,
asset_ids: list[str],
) -> set[str]:
"""Return the subset of asset_ids that exist in the database."""
if not asset_ids:
return set()
found: set[str] = set()
for chunk in iter_chunks(asset_ids, MAX_BIND_PARAMS):
rows = session.execute(
select(Asset.id).where(Asset.id.in_(chunk))
).fetchall()
found.update(row[0] for row in rows)
return found
def update_asset_hash_and_mime(
session: Session,
asset_id: str,
asset_hash: str | None = None,
mime_type: str | None = None,
) -> bool:
"""Update asset hash and/or mime_type. Returns True if asset was found."""
asset = session.get(Asset, asset_id)
if not asset:
return False
if asset_hash is not None:
asset.hash = asset_hash
if mime_type is not None:
asset.mime_type = mime_type
return True
def reassign_asset_references(
session: Session,
from_asset_id: str,
to_asset_id: str,
reference_id: str,
) -> None:
"""Reassign a reference from one asset to another.
Used when merging a stub asset into an existing asset with the same hash.
"""
ref = session.get(AssetReference, reference_id)
if ref:
ref.asset_id = to_asset_id
session.flush()

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"""Query functions for the unified AssetReference table.
This module replaces the separate asset_info.py and cache_state.py query modules,
providing a unified interface for the merged asset_references table.
"""
import os
from collections import defaultdict
from datetime import datetime
from decimal import Decimal
from typing import NamedTuple, Sequence
import sqlalchemy as sa
from sqlalchemy import delete, exists, select
from sqlalchemy.dialects import sqlite
from sqlalchemy.exc import IntegrityError
from sqlalchemy.orm import Session, noload
from app.assets.database.models import (
Asset,
AssetReference,
AssetReferenceMeta,
AssetReferenceTag,
Tag,
)
from app.assets.database.queries.common import (
MAX_BIND_PARAMS,
build_visible_owner_clause,
calculate_rows_per_statement,
iter_chunks,
)
from app.assets.helpers import escape_sql_like_string, get_utc_now, normalize_tags
def _check_is_scalar(v):
if v is None:
return True
if isinstance(v, bool):
return True
if isinstance(v, (int, float, Decimal, str)):
return True
return False
def _scalar_to_row(key: str, ordinal: int, value) -> dict:
"""Convert a scalar value to a typed projection row."""
if value is None:
return {
"key": key,
"ordinal": ordinal,
"val_str": None,
"val_num": None,
"val_bool": None,
"val_json": None,
}
if isinstance(value, bool):
return {"key": key, "ordinal": ordinal, "val_bool": bool(value)}
if isinstance(value, (int, float, Decimal)):
num = value if isinstance(value, Decimal) else Decimal(str(value))
return {"key": key, "ordinal": ordinal, "val_num": num}
if isinstance(value, str):
return {"key": key, "ordinal": ordinal, "val_str": value}
return {"key": key, "ordinal": ordinal, "val_json": value}
def convert_metadata_to_rows(key: str, value) -> list[dict]:
"""Turn a metadata key/value into typed projection rows."""
if value is None:
return [_scalar_to_row(key, 0, None)]
if _check_is_scalar(value):
return [_scalar_to_row(key, 0, value)]
if isinstance(value, list):
if all(_check_is_scalar(x) for x in value):
return [_scalar_to_row(key, i, x) for i, x in enumerate(value)]
return [{"key": key, "ordinal": i, "val_json": x} for i, x in enumerate(value)]
return [{"key": key, "ordinal": 0, "val_json": value}]
def _apply_tag_filters(
stmt: sa.sql.Select,
include_tags: Sequence[str] | None = None,
exclude_tags: Sequence[str] | None = None,
) -> sa.sql.Select:
"""include_tags: every tag must be present; exclude_tags: none may be present."""
include_tags = normalize_tags(include_tags)
exclude_tags = normalize_tags(exclude_tags)
if include_tags:
for tag_name in include_tags:
stmt = stmt.where(
exists().where(
(AssetReferenceTag.asset_reference_id == AssetReference.id)
& (AssetReferenceTag.tag_name == tag_name)
)
)
if exclude_tags:
stmt = stmt.where(
~exists().where(
(AssetReferenceTag.asset_reference_id == AssetReference.id)
& (AssetReferenceTag.tag_name.in_(exclude_tags))
)
)
return stmt
def _apply_metadata_filter(
stmt: sa.sql.Select,
metadata_filter: dict | None = None,
) -> sa.sql.Select:
"""Apply filters using asset_reference_meta projection table."""
if not metadata_filter:
return stmt
def _exists_for_pred(key: str, *preds) -> sa.sql.ClauseElement:
return sa.exists().where(
AssetReferenceMeta.asset_reference_id == AssetReference.id,
AssetReferenceMeta.key == key,
*preds,
)
def _exists_clause_for_value(key: str, value) -> sa.sql.ClauseElement:
if value is None:
no_row_for_key = sa.not_(
sa.exists().where(
AssetReferenceMeta.asset_reference_id == AssetReference.id,
AssetReferenceMeta.key == key,
)
)
null_row = _exists_for_pred(
key,
AssetReferenceMeta.val_json.is_(None),
AssetReferenceMeta.val_str.is_(None),
AssetReferenceMeta.val_num.is_(None),
AssetReferenceMeta.val_bool.is_(None),
)
return sa.or_(no_row_for_key, null_row)
if isinstance(value, bool):
return _exists_for_pred(key, AssetReferenceMeta.val_bool == bool(value))
if isinstance(value, (int, float, Decimal)):
num = value if isinstance(value, Decimal) else Decimal(str(value))
return _exists_for_pred(key, AssetReferenceMeta.val_num == num)
if isinstance(value, str):
return _exists_for_pred(key, AssetReferenceMeta.val_str == value)
return _exists_for_pred(key, AssetReferenceMeta.val_json == value)
for k, v in metadata_filter.items():
if isinstance(v, list):
ors = [_exists_clause_for_value(k, elem) for elem in v]
if ors:
stmt = stmt.where(sa.or_(*ors))
else:
stmt = stmt.where(_exists_clause_for_value(k, v))
return stmt
def get_reference_by_id(
session: Session,
reference_id: str,
) -> AssetReference | None:
return session.get(AssetReference, reference_id)
def get_reference_by_file_path(
session: Session,
file_path: str,
) -> AssetReference | None:
"""Get a reference by its file path."""
return (
session.execute(
select(AssetReference).where(AssetReference.file_path == file_path).limit(1)
)
.scalars()
.first()
)
def reference_exists_for_asset_id(
session: Session,
asset_id: str,
) -> bool:
q = (
select(sa.literal(True))
.select_from(AssetReference)
.where(AssetReference.asset_id == asset_id)
.limit(1)
)
return session.execute(q).first() is not None
def insert_reference(
session: Session,
asset_id: str,
name: str,
owner_id: str = "",
file_path: str | None = None,
mtime_ns: int | None = None,
preview_id: str | None = None,
) -> AssetReference | None:
"""Insert a new AssetReference. Returns None if unique constraint violated."""
now = get_utc_now()
try:
with session.begin_nested():
ref = AssetReference(
asset_id=asset_id,
name=name,
owner_id=owner_id,
file_path=file_path,
mtime_ns=mtime_ns,
preview_id=preview_id,
created_at=now,
updated_at=now,
last_access_time=now,
)
session.add(ref)
session.flush()
return ref
except IntegrityError:
return None
def get_or_create_reference(
session: Session,
asset_id: str,
name: str,
owner_id: str = "",
file_path: str | None = None,
mtime_ns: int | None = None,
preview_id: str | None = None,
) -> tuple[AssetReference, bool]:
"""Get existing or create new AssetReference.
For filesystem references (file_path is set), uniqueness is by file_path.
For API references (file_path is None), we look for matching
asset_id + owner_id + name.
Returns (reference, created).
"""
ref = insert_reference(
session,
asset_id=asset_id,
name=name,
owner_id=owner_id,
file_path=file_path,
mtime_ns=mtime_ns,
preview_id=preview_id,
)
if ref:
return ref, True
# Find existing - priority to file_path match, then name match
if file_path:
existing = get_reference_by_file_path(session, file_path)
else:
existing = (
session.execute(
select(AssetReference)
.where(
AssetReference.asset_id == asset_id,
AssetReference.name == name,
AssetReference.owner_id == owner_id,
AssetReference.file_path.is_(None),
)
.limit(1)
)
.unique()
.scalar_one_or_none()
)
if not existing:
raise RuntimeError("Failed to find AssetReference after insert conflict.")
return existing, False
def update_reference_timestamps(
session: Session,
reference: AssetReference,
preview_id: str | None = None,
) -> None:
"""Update timestamps and optionally preview_id on existing AssetReference."""
now = get_utc_now()
if preview_id and reference.preview_id != preview_id:
reference.preview_id = preview_id
reference.updated_at = now
def list_references_page(
session: Session,
owner_id: str = "",
limit: int = 100,
offset: int = 0,
name_contains: str | None = None,
include_tags: Sequence[str] | None = None,
exclude_tags: Sequence[str] | None = None,
metadata_filter: dict | None = None,
sort: str | None = None,
order: str | None = None,
) -> tuple[list[AssetReference], dict[str, list[str]], int]:
"""List references with pagination, filtering, and sorting.
Returns (references, tag_map, total_count).
"""
base = (
select(AssetReference)
.join(Asset, Asset.id == AssetReference.asset_id)
.where(build_visible_owner_clause(owner_id))
.where(AssetReference.is_missing == False) # noqa: E712
.options(noload(AssetReference.tags))
)
if name_contains:
escaped, esc = escape_sql_like_string(name_contains)
base = base.where(AssetReference.name.ilike(f"%{escaped}%", escape=esc))
base = _apply_tag_filters(base, include_tags, exclude_tags)
base = _apply_metadata_filter(base, metadata_filter)
sort = (sort or "created_at").lower()
order = (order or "desc").lower()
sort_map = {
"name": AssetReference.name,
"created_at": AssetReference.created_at,
"updated_at": AssetReference.updated_at,
"last_access_time": AssetReference.last_access_time,
"size": Asset.size_bytes,
}
sort_col = sort_map.get(sort, AssetReference.created_at)
sort_exp = sort_col.desc() if order == "desc" else sort_col.asc()
base = base.order_by(sort_exp).limit(limit).offset(offset)
count_stmt = (
select(sa.func.count())
.select_from(AssetReference)
.join(Asset, Asset.id == AssetReference.asset_id)
.where(build_visible_owner_clause(owner_id))
.where(AssetReference.is_missing == False) # noqa: E712
)
if name_contains:
escaped, esc = escape_sql_like_string(name_contains)
count_stmt = count_stmt.where(
AssetReference.name.ilike(f"%{escaped}%", escape=esc)
)
count_stmt = _apply_tag_filters(count_stmt, include_tags, exclude_tags)
count_stmt = _apply_metadata_filter(count_stmt, metadata_filter)
total = int(session.execute(count_stmt).scalar_one() or 0)
refs = session.execute(base).unique().scalars().all()
id_list: list[str] = [r.id for r in refs]
tag_map: dict[str, list[str]] = defaultdict(list)
if id_list:
rows = session.execute(
select(AssetReferenceTag.asset_reference_id, Tag.name)
.join(Tag, Tag.name == AssetReferenceTag.tag_name)
.where(AssetReferenceTag.asset_reference_id.in_(id_list))
.order_by(AssetReferenceTag.added_at)
)
for ref_id, tag_name in rows.all():
tag_map[ref_id].append(tag_name)
return list(refs), tag_map, total
def fetch_reference_asset_and_tags(
session: Session,
reference_id: str,
owner_id: str = "",
) -> tuple[AssetReference, Asset, list[str]] | None:
stmt = (
select(AssetReference, Asset, Tag.name)
.join(Asset, Asset.id == AssetReference.asset_id)
.join(
AssetReferenceTag,
AssetReferenceTag.asset_reference_id == AssetReference.id,
isouter=True,
)
.join(Tag, Tag.name == AssetReferenceTag.tag_name, isouter=True)
.where(
AssetReference.id == reference_id,
build_visible_owner_clause(owner_id),
)
.options(noload(AssetReference.tags))
.order_by(Tag.name.asc())
)
rows = session.execute(stmt).all()
if not rows:
return None
first_ref, first_asset, _ = rows[0]
tags: list[str] = []
seen: set[str] = set()
for _ref, _asset, tag_name in rows:
if tag_name and tag_name not in seen:
seen.add(tag_name)
tags.append(tag_name)
return first_ref, first_asset, tags
def fetch_reference_and_asset(
session: Session,
reference_id: str,
owner_id: str = "",
) -> tuple[AssetReference, Asset] | None:
stmt = (
select(AssetReference, Asset)
.join(Asset, Asset.id == AssetReference.asset_id)
.where(
AssetReference.id == reference_id,
build_visible_owner_clause(owner_id),
)
.limit(1)
.options(noload(AssetReference.tags))
)
pair = session.execute(stmt).first()
if not pair:
return None
return pair[0], pair[1]
def update_reference_access_time(
session: Session,
reference_id: str,
ts: datetime | None = None,
only_if_newer: bool = True,
) -> None:
ts = ts or get_utc_now()
stmt = sa.update(AssetReference).where(AssetReference.id == reference_id)
if only_if_newer:
stmt = stmt.where(
sa.or_(
AssetReference.last_access_time.is_(None),
AssetReference.last_access_time < ts,
)
)
session.execute(stmt.values(last_access_time=ts))
def update_reference_name(
session: Session,
reference_id: str,
name: str,
) -> None:
"""Update the name of an AssetReference."""
now = get_utc_now()
session.execute(
sa.update(AssetReference)
.where(AssetReference.id == reference_id)
.values(name=name, updated_at=now)
)
def update_reference_updated_at(
session: Session,
reference_id: str,
ts: datetime | None = None,
) -> None:
"""Update the updated_at timestamp of an AssetReference."""
ts = ts or get_utc_now()
session.execute(
sa.update(AssetReference)
.where(AssetReference.id == reference_id)
.values(updated_at=ts)
)
def set_reference_metadata(
session: Session,
reference_id: str,
user_metadata: dict | None = None,
) -> None:
ref = session.get(AssetReference, reference_id)
if not ref:
raise ValueError(f"AssetReference {reference_id} not found")
ref.user_metadata = user_metadata or {}
ref.updated_at = get_utc_now()
session.flush()
session.execute(
delete(AssetReferenceMeta).where(
AssetReferenceMeta.asset_reference_id == reference_id
)
)
session.flush()
if not user_metadata:
return
rows: list[AssetReferenceMeta] = []
for k, v in user_metadata.items():
for r in convert_metadata_to_rows(k, v):
rows.append(
AssetReferenceMeta(
asset_reference_id=reference_id,
key=r["key"],
ordinal=int(r["ordinal"]),
val_str=r.get("val_str"),
val_num=r.get("val_num"),
val_bool=r.get("val_bool"),
val_json=r.get("val_json"),
)
)
if rows:
session.add_all(rows)
session.flush()
def delete_reference_by_id(
session: Session,
reference_id: str,
owner_id: str,
) -> bool:
stmt = sa.delete(AssetReference).where(
AssetReference.id == reference_id,
build_visible_owner_clause(owner_id),
)
return int(session.execute(stmt).rowcount or 0) > 0
def set_reference_preview(
session: Session,
reference_id: str,
preview_asset_id: str | None = None,
) -> None:
"""Set or clear preview_id and bump updated_at. Raises on unknown IDs."""
ref = session.get(AssetReference, reference_id)
if not ref:
raise ValueError(f"AssetReference {reference_id} not found")
if preview_asset_id is None:
ref.preview_id = None
else:
if not session.get(Asset, preview_asset_id):
raise ValueError(f"Preview Asset {preview_asset_id} not found")
ref.preview_id = preview_asset_id
ref.updated_at = get_utc_now()
session.flush()
class CacheStateRow(NamedTuple):
"""Row from reference query with cache state data."""
reference_id: str
file_path: str
mtime_ns: int | None
needs_verify: bool
asset_id: str
asset_hash: str | None
size_bytes: int
def list_references_by_asset_id(
session: Session,
asset_id: str,
) -> Sequence[AssetReference]:
return (
session.execute(
select(AssetReference)
.where(AssetReference.asset_id == asset_id)
.order_by(AssetReference.id.asc())
)
.scalars()
.all()
)
def upsert_reference(
session: Session,
asset_id: str,
file_path: str,
name: str,
mtime_ns: int,
owner_id: str = "",
) -> tuple[bool, bool]:
"""Upsert a reference by file_path. Returns (created, updated).
Also restores references that were previously marked as missing.
"""
now = get_utc_now()
vals = {
"asset_id": asset_id,
"file_path": file_path,
"name": name,
"owner_id": owner_id,
"mtime_ns": int(mtime_ns),
"is_missing": False,
"created_at": now,
"updated_at": now,
"last_access_time": now,
}
ins = (
sqlite.insert(AssetReference)
.values(**vals)
.on_conflict_do_nothing(index_elements=[AssetReference.file_path])
)
res = session.execute(ins)
created = int(res.rowcount or 0) > 0
if created:
return True, False
upd = (
sa.update(AssetReference)
.where(AssetReference.file_path == file_path)
.where(
sa.or_(
AssetReference.asset_id != asset_id,
AssetReference.mtime_ns.is_(None),
AssetReference.mtime_ns != int(mtime_ns),
AssetReference.is_missing == True, # noqa: E712
)
)
.values(
asset_id=asset_id, mtime_ns=int(mtime_ns), is_missing=False, updated_at=now
)
)
res2 = session.execute(upd)
updated = int(res2.rowcount or 0) > 0
return False, updated
def mark_references_missing_outside_prefixes(
session: Session,
valid_prefixes: list[str],
) -> int:
"""Mark references as missing when file_path doesn't match any valid prefix.
Returns number of references marked as missing.
"""
if not valid_prefixes:
return 0
def make_prefix_condition(prefix: str):
base = prefix if prefix.endswith(os.sep) else prefix + os.sep
escaped, esc = escape_sql_like_string(base)
return AssetReference.file_path.like(escaped + "%", escape=esc)
matches_valid_prefix = sa.or_(*[make_prefix_condition(p) for p in valid_prefixes])
result = session.execute(
sa.update(AssetReference)
.where(AssetReference.file_path.isnot(None))
.where(~matches_valid_prefix)
.where(AssetReference.is_missing == False) # noqa: E712
.values(is_missing=True)
)
return result.rowcount
def restore_references_by_paths(session: Session, file_paths: list[str]) -> int:
"""Restore references that were previously marked as missing.
Returns number of references restored.
"""
if not file_paths:
return 0
result = session.execute(
sa.update(AssetReference)
.where(AssetReference.file_path.in_(file_paths))
.where(AssetReference.is_missing == True) # noqa: E712
.values(is_missing=False)
)
return result.rowcount
def get_unreferenced_unhashed_asset_ids(session: Session) -> list[str]:
"""Get IDs of unhashed assets (hash=None) with no active references.
An asset is considered unreferenced if it has no references,
or all its references are marked as missing.
Returns list of asset IDs that are unreferenced.
"""
active_ref_exists = (
sa.select(sa.literal(1))
.where(AssetReference.asset_id == Asset.id)
.where(AssetReference.is_missing == False) # noqa: E712
.correlate(Asset)
.exists()
)
unreferenced_subq = sa.select(Asset.id).where(
Asset.hash.is_(None), ~active_ref_exists
)
return [row[0] for row in session.execute(unreferenced_subq).all()]
def delete_assets_by_ids(session: Session, asset_ids: list[str]) -> int:
"""Delete assets and their references by ID.
Returns number of assets deleted.
"""
if not asset_ids:
return 0
session.execute(
sa.delete(AssetReference).where(AssetReference.asset_id.in_(asset_ids))
)
result = session.execute(sa.delete(Asset).where(Asset.id.in_(asset_ids)))
return result.rowcount
def get_references_for_prefixes(
session: Session,
prefixes: list[str],
*,
include_missing: bool = False,
) -> list[CacheStateRow]:
"""Get all references with file paths matching any of the given prefixes.
Args:
session: Database session
prefixes: List of absolute directory prefixes to match
include_missing: If False (default), exclude references marked as missing
Returns:
List of cache state rows with joined asset data
"""
if not prefixes:
return []
conds = []
for p in prefixes:
base = os.path.abspath(p)
if not base.endswith(os.sep):
base += os.sep
escaped, esc = escape_sql_like_string(base)
conds.append(AssetReference.file_path.like(escaped + "%", escape=esc))
query = (
sa.select(
AssetReference.id,
AssetReference.file_path,
AssetReference.mtime_ns,
AssetReference.needs_verify,
AssetReference.asset_id,
Asset.hash,
Asset.size_bytes,
)
.join(Asset, Asset.id == AssetReference.asset_id)
.where(AssetReference.file_path.isnot(None))
.where(sa.or_(*conds))
)
if not include_missing:
query = query.where(AssetReference.is_missing == False) # noqa: E712
rows = session.execute(
query.order_by(AssetReference.asset_id.asc(), AssetReference.id.asc())
).all()
return [
CacheStateRow(
reference_id=row[0],
file_path=row[1],
mtime_ns=row[2],
needs_verify=row[3],
asset_id=row[4],
asset_hash=row[5],
size_bytes=int(row[6] or 0),
)
for row in rows
]
def bulk_update_needs_verify(
session: Session, reference_ids: list[str], value: bool
) -> int:
"""Set needs_verify flag for multiple references.
Returns: Number of rows updated
"""
if not reference_ids:
return 0
result = session.execute(
sa.update(AssetReference)
.where(AssetReference.id.in_(reference_ids))
.values(needs_verify=value)
)
return result.rowcount
def bulk_update_is_missing(
session: Session, reference_ids: list[str], value: bool
) -> int:
"""Set is_missing flag for multiple references.
Returns: Number of rows updated
"""
if not reference_ids:
return 0
result = session.execute(
sa.update(AssetReference)
.where(AssetReference.id.in_(reference_ids))
.values(is_missing=value)
)
return result.rowcount
def delete_references_by_ids(session: Session, reference_ids: list[str]) -> int:
"""Delete references by their IDs.
Returns: Number of rows deleted
"""
if not reference_ids:
return 0
result = session.execute(
sa.delete(AssetReference).where(AssetReference.id.in_(reference_ids))
)
return result.rowcount
def delete_orphaned_seed_asset(session: Session, asset_id: str) -> bool:
"""Delete a seed asset (hash is None) and its references.
Returns: True if asset was deleted, False if not found
"""
session.execute(
sa.delete(AssetReference).where(AssetReference.asset_id == asset_id)
)
asset = session.get(Asset, asset_id)
if asset:
session.delete(asset)
return True
return False
class UnenrichedReferenceRow(NamedTuple):
"""Row for references needing enrichment."""
reference_id: str
asset_id: str
file_path: str
enrichment_level: int
def get_unenriched_references(
session: Session,
prefixes: list[str],
max_level: int = 0,
limit: int = 1000,
) -> list[UnenrichedReferenceRow]:
"""Get references that need enrichment (enrichment_level <= max_level).
Args:
session: Database session
prefixes: List of absolute directory prefixes to scan
max_level: Maximum enrichment level to include (0=stubs, 1=metadata done)
limit: Maximum number of rows to return
Returns:
List of unenriched reference rows with file paths
"""
if not prefixes:
return []
conds = []
for p in prefixes:
base = os.path.abspath(p)
if not base.endswith(os.sep):
base += os.sep
escaped, esc = escape_sql_like_string(base)
conds.append(AssetReference.file_path.like(escaped + "%", escape=esc))
query = (
sa.select(
AssetReference.id,
AssetReference.asset_id,
AssetReference.file_path,
AssetReference.enrichment_level,
)
.where(AssetReference.file_path.isnot(None))
.where(sa.or_(*conds))
.where(AssetReference.is_missing == False) # noqa: E712
.where(AssetReference.enrichment_level <= max_level)
.order_by(AssetReference.id.asc())
.limit(limit)
)
rows = session.execute(query).all()
return [
UnenrichedReferenceRow(
reference_id=row[0],
asset_id=row[1],
file_path=row[2],
enrichment_level=row[3],
)
for row in rows
]
def update_enrichment_level(
session: Session,
reference_id: str,
level: int,
) -> None:
"""Update the enrichment level for a reference."""
session.execute(
sa.update(AssetReference)
.where(AssetReference.id == reference_id)
.values(enrichment_level=level)
)
def bulk_update_enrichment_level(
session: Session,
reference_ids: list[str],
level: int,
) -> int:
"""Update enrichment level for multiple references.
Returns: Number of rows updated
"""
if not reference_ids:
return 0
result = session.execute(
sa.update(AssetReference)
.where(AssetReference.id.in_(reference_ids))
.values(enrichment_level=level)
)
return result.rowcount
def bulk_insert_references_ignore_conflicts(
session: Session,
rows: list[dict],
) -> None:
"""Bulk insert reference rows with ON CONFLICT DO NOTHING on file_path.
Each dict should have: id, asset_id, file_path, name, owner_id, mtime_ns, etc.
The is_missing field is automatically set to False for new inserts.
"""
if not rows:
return
enriched_rows = [{**row, "is_missing": False} for row in rows]
ins = sqlite.insert(AssetReference).on_conflict_do_nothing(
index_elements=[AssetReference.file_path]
)
for chunk in iter_chunks(enriched_rows, calculate_rows_per_statement(14)):
session.execute(ins, chunk)
def get_references_by_paths_and_asset_ids(
session: Session,
path_to_asset: dict[str, str],
) -> set[str]:
"""Query references to find paths where our asset_id won the insert.
Args:
path_to_asset: Mapping of file_path -> asset_id we tried to insert
Returns:
Set of file_paths where our asset_id is present
"""
if not path_to_asset:
return set()
pairs = list(path_to_asset.items())
winners: set[str] = set()
# Each pair uses 2 bind params, so chunk at MAX_BIND_PARAMS // 2
for chunk in iter_chunks(pairs, MAX_BIND_PARAMS // 2):
pairwise = sa.tuple_(AssetReference.file_path, AssetReference.asset_id).in_(
chunk
)
result = session.execute(
select(AssetReference.file_path).where(pairwise)
)
winners.update(result.scalars().all())
return winners
def get_reference_ids_by_ids(
session: Session,
reference_ids: list[str],
) -> set[str]:
"""Query to find which reference IDs exist in the database."""
if not reference_ids:
return set()
found: set[str] = set()
for chunk in iter_chunks(reference_ids, MAX_BIND_PARAMS):
result = session.execute(
select(AssetReference.id).where(AssetReference.id.in_(chunk))
)
found.update(result.scalars().all())
return found

40
app/assets/database/queries/common.py Normal file
View File

@@ -0,0 +1,40 @@
"""Shared utilities for database query modules."""
from typing import Iterable
import sqlalchemy as sa
from app.assets.database.models import AssetReference
MAX_BIND_PARAMS = 800
def calculate_rows_per_statement(cols: int) -> int:
"""Calculate how many rows can fit in one statement given column count."""
return max(1, MAX_BIND_PARAMS // max(1, cols))
def iter_chunks(seq, n: int):
"""Yield successive n-sized chunks from seq."""
for i in range(0, len(seq), n):
yield seq[i : i + n]
def iter_row_chunks(rows: list[dict], cols_per_row: int) -> Iterable[list[dict]]:
"""Yield chunks of rows sized to fit within bind param limits."""
if not rows:
return
rows_per_stmt = calculate_rows_per_statement(cols_per_row)
for i in range(0, len(rows), rows_per_stmt):
yield rows[i : i + rows_per_stmt]
def build_visible_owner_clause(owner_id: str) -> sa.sql.ClauseElement:
"""Build owner visibility predicate for reads.
Owner-less rows are visible to everyone.
"""
owner_id = (owner_id or "").strip()
if owner_id == "":
return AssetReference.owner_id == ""
return AssetReference.owner_id.in_(["", owner_id])

366
app/assets/database/queries/tags.py Normal file
View File

@@ -0,0 +1,366 @@
from typing import Iterable, Sequence, TypedDict
import sqlalchemy as sa
from sqlalchemy import delete, func, select
from sqlalchemy.dialects import sqlite
from sqlalchemy.exc import IntegrityError
from sqlalchemy.orm import Session
from app.assets.database.models import (
AssetReference,
AssetReferenceMeta,
AssetReferenceTag,
Tag,
)
from app.assets.database.queries.common import (
build_visible_owner_clause,
iter_row_chunks,
)
from app.assets.helpers import escape_sql_like_string, get_utc_now, normalize_tags
class AddTagsDict(TypedDict):
added: list[str]
already_present: list[str]
total_tags: list[str]
class RemoveTagsDict(TypedDict):
removed: list[str]
not_present: list[str]
total_tags: list[str]
class SetTagsDict(TypedDict):
added: list[str]
removed: list[str]
total: list[str]
def ensure_tags_exist(
session: Session, names: Iterable[str], tag_type: str = "user"
) -> None:
wanted = normalize_tags(list(names))
if not wanted:
return
rows = [{"name": n, "tag_type": tag_type} for n in list(dict.fromkeys(wanted))]
ins = (
sqlite.insert(Tag)
.values(rows)
.on_conflict_do_nothing(index_elements=[Tag.name])
)
session.execute(ins)
def get_reference_tags(session: Session, reference_id: str) -> list[str]:
return [
tag_name
for (tag_name,) in (
session.execute(
select(AssetReferenceTag.tag_name).where(
AssetReferenceTag.asset_reference_id == reference_id
)
)
).all()
]
def set_reference_tags(
session: Session,
reference_id: str,
tags: Sequence[str],
origin: str = "manual",
) -> SetTagsDict:
desired = normalize_tags(tags)
current = set(
tag_name
for (tag_name,) in (
session.execute(
select(AssetReferenceTag.tag_name).where(
AssetReferenceTag.asset_reference_id == reference_id
)
)
).all()
)
to_add = [t for t in desired if t not in current]
to_remove = [t for t in current if t not in desired]
if to_add:
ensure_tags_exist(session, to_add, tag_type="user")
session.add_all(
[
AssetReferenceTag(
asset_reference_id=reference_id,
tag_name=t,
origin=origin,
added_at=get_utc_now(),
)
for t in to_add
]
)
session.flush()
if to_remove:
session.execute(
delete(AssetReferenceTag).where(
AssetReferenceTag.asset_reference_id == reference_id,
AssetReferenceTag.tag_name.in_(to_remove),
)
)
session.flush()
return {"added": to_add, "removed": to_remove, "total": desired}
def add_tags_to_reference(
session: Session,
reference_id: str,
tags: Sequence[str],
origin: str = "manual",
create_if_missing: bool = True,
reference_row: AssetReference | None = None,
) -> AddTagsDict:
if not reference_row:
ref = session.get(AssetReference, reference_id)
if not ref:
raise ValueError(f"AssetReference {reference_id} not found")
norm = normalize_tags(tags)
if not norm:
total = get_reference_tags(session, reference_id=reference_id)
return {"added": [], "already_present": [], "total_tags": total}
if create_if_missing:
ensure_tags_exist(session, norm, tag_type="user")
current = {
tag_name
for (tag_name,) in (
session.execute(
sa.select(AssetReferenceTag.tag_name).where(
AssetReferenceTag.asset_reference_id == reference_id
)
)
).all()
}
want = set(norm)
to_add = sorted(want - current)
if to_add:
with session.begin_nested() as nested:
try:
session.add_all(
[
AssetReferenceTag(
asset_reference_id=reference_id,
tag_name=t,
origin=origin,
added_at=get_utc_now(),
)
for t in to_add
]
)
session.flush()
except IntegrityError:
nested.rollback()
after = set(get_reference_tags(session, reference_id=reference_id))
return {
"added": sorted(((after - current) & want)),
"already_present": sorted(want & current),
"total_tags": sorted(after),
}
def remove_tags_from_reference(
session: Session,
reference_id: str,
tags: Sequence[str],
) -> RemoveTagsDict:
ref = session.get(AssetReference, reference_id)
if not ref:
raise ValueError(f"AssetReference {reference_id} not found")
norm = normalize_tags(tags)
if not norm:
total = get_reference_tags(session, reference_id=reference_id)
return {"removed": [], "not_present": [], "total_tags": total}
existing = {
tag_name
for (tag_name,) in (
session.execute(
sa.select(AssetReferenceTag.tag_name).where(
AssetReferenceTag.asset_reference_id == reference_id
)
)
).all()
}
to_remove = sorted(set(t for t in norm if t in existing))
not_present = sorted(set(t for t in norm if t not in existing))
if to_remove:
session.execute(
delete(AssetReferenceTag).where(
AssetReferenceTag.asset_reference_id == reference_id,
AssetReferenceTag.tag_name.in_(to_remove),
)
)
session.flush()
total = get_reference_tags(session, reference_id=reference_id)
return {"removed": to_remove, "not_present": not_present, "total_tags": total}
def add_missing_tag_for_asset_id(
session: Session,
asset_id: str,
origin: str = "automatic",
) -> None:
select_rows = (
sa.select(
AssetReference.id.label("asset_reference_id"),
sa.literal("missing").label("tag_name"),
sa.literal(origin).label("origin"),
sa.literal(get_utc_now()).label("added_at"),
)
.where(AssetReference.asset_id == asset_id)
.where(
sa.not_(
sa.exists().where(
(AssetReferenceTag.asset_reference_id == AssetReference.id)
& (AssetReferenceTag.tag_name == "missing")
)
)
)
)
session.execute(
sqlite.insert(AssetReferenceTag)
.from_select(
["asset_reference_id", "tag_name", "origin", "added_at"],
select_rows,
)
.on_conflict_do_nothing(
index_elements=[
AssetReferenceTag.asset_reference_id,
AssetReferenceTag.tag_name,
]
)
)
def remove_missing_tag_for_asset_id(
session: Session,
asset_id: str,
) -> None:
session.execute(
sa.delete(AssetReferenceTag).where(
AssetReferenceTag.asset_reference_id.in_(
sa.select(AssetReference.id).where(AssetReference.asset_id == asset_id)
),
AssetReferenceTag.tag_name == "missing",
)
)
def list_tags_with_usage(
session: Session,
prefix: str | None = None,
limit: int = 100,
offset: int = 0,
include_zero: bool = True,
order: str = "count_desc",
owner_id: str = "",
) -> tuple[list[tuple[str, str, int]], int]:
counts_sq = (
select(
AssetReferenceTag.tag_name.label("tag_name"),
func.count(AssetReferenceTag.asset_reference_id).label("cnt"),
)
.select_from(AssetReferenceTag)
.join(AssetReference, AssetReference.id == AssetReferenceTag.asset_reference_id)
.where(build_visible_owner_clause(owner_id))
.group_by(AssetReferenceTag.tag_name)
.subquery()
)
q = (
select(
Tag.name,
Tag.tag_type,
func.coalesce(counts_sq.c.cnt, 0).label("count"),
)
.select_from(Tag)
.join(counts_sq, counts_sq.c.tag_name == Tag.name, isouter=True)
)
if prefix:
escaped, esc = escape_sql_like_string(prefix.strip().lower())
q = q.where(Tag.name.like(escaped + "%", escape=esc))
if not include_zero:
q = q.where(func.coalesce(counts_sq.c.cnt, 0) > 0)
if order == "name_asc":
q = q.order_by(Tag.name.asc())
else:
q = q.order_by(func.coalesce(counts_sq.c.cnt, 0).desc(), Tag.name.asc())
total_q = select(func.count()).select_from(Tag)
if prefix:
escaped, esc = escape_sql_like_string(prefix.strip().lower())
total_q = total_q.where(Tag.name.like(escaped + "%", escape=esc))
if not include_zero:
visible_tags_sq = (
select(AssetReferenceTag.tag_name)
.join(AssetReference, AssetReference.id == AssetReferenceTag.asset_reference_id)
.where(build_visible_owner_clause(owner_id))
.group_by(AssetReferenceTag.tag_name)
)
total_q = total_q.where(Tag.name.in_(visible_tags_sq))
rows = (session.execute(q.limit(limit).offset(offset))).all()
total = (session.execute(total_q)).scalar_one()
rows_norm = [(name, ttype, int(count or 0)) for (name, ttype, count) in rows]
return rows_norm, int(total or 0)
def bulk_insert_tags_and_meta(
session: Session,
tag_rows: list[dict],
meta_rows: list[dict],
) -> None:
"""Batch insert into asset_reference_tags and asset_reference_meta.
Uses ON CONFLICT DO NOTHING.
Args:
session: Database session
tag_rows: Dicts with: asset_reference_id, tag_name, origin, added_at
meta_rows: Dicts with: asset_reference_id, key, ordinal, val_*
"""
if tag_rows:
ins_tags = sqlite.insert(AssetReferenceTag).on_conflict_do_nothing(
index_elements=[
AssetReferenceTag.asset_reference_id,
AssetReferenceTag.tag_name,
]
)
for chunk in iter_row_chunks(tag_rows, cols_per_row=4):
session.execute(ins_tags, chunk)
if meta_rows:
ins_meta = sqlite.insert(AssetReferenceMeta).on_conflict_do_nothing(
index_elements=[
AssetReferenceMeta.asset_reference_id,
AssetReferenceMeta.key,
AssetReferenceMeta.ordinal,
]
)
for chunk in iter_row_chunks(meta_rows, cols_per_row=7):
session.execute(ins_meta, chunk)

62
app/assets/database/tags.py
View File

@@ -1,62 +0,0 @@
from typing import Iterable
import sqlalchemy
from sqlalchemy.orm import Session
from sqlalchemy.dialects import sqlite
from app.assets.helpers import normalize_tags, utcnow
from app.assets.database.models import Tag, AssetInfoTag, AssetInfo
def ensure_tags_exist(session: Session, names: Iterable[str], tag_type: str = "user") -> None:
wanted = normalize_tags(list(names))
if not wanted:
return
rows = [{"name": n, "tag_type": tag_type} for n in list(dict.fromkeys(wanted))]
ins = (
sqlite.insert(Tag)
.values(rows)
.on_conflict_do_nothing(index_elements=[Tag.name])
)
return session.execute(ins)
def add_missing_tag_for_asset_id(
session: Session,
*,
asset_id: str,
origin: str = "automatic",
) -> None:
select_rows = (
sqlalchemy.select(
AssetInfo.id.label("asset_info_id"),
sqlalchemy.literal("missing").label("tag_name"),
sqlalchemy.literal(origin).label("origin"),
sqlalchemy.literal(utcnow()).label("added_at"),
)
.where(AssetInfo.asset_id == asset_id)
.where(
sqlalchemy.not_(
sqlalchemy.exists().where((AssetInfoTag.asset_info_id == AssetInfo.id) & (AssetInfoTag.tag_name == "missing"))
)
)
)
session.execute(
sqlite.insert(AssetInfoTag)
.from_select(
["asset_info_id", "tag_name", "origin", "added_at"],
select_rows,
)
.on_conflict_do_nothing(index_elements=[AssetInfoTag.asset_info_id, AssetInfoTag.tag_name])
)
def remove_missing_tag_for_asset_id(
session: Session,
*,
asset_id: str,
) -> None:
session.execute(
sqlalchemy.delete(AssetInfoTag).where(
AssetInfoTag.asset_info_id.in_(sqlalchemy.select(AssetInfo.id).where(AssetInfo.asset_id == asset_id)),
AssetInfoTag.tag_name == "missing",
)
)

2
app/assets/helpers.py
View File

@@ -228,7 +228,7 @@ def normalize_tags(tags: list[str] | None) -> list[str]:
- Stripping whitespace and converting to lowercase.
- Removing duplicates.
"""
return [t.strip().lower() for t in (tags or []) if (t or "").strip()]
return list(dict.fromkeys(t.strip().lower() for t in (tags or []) if (t or "").strip()))
def collect_models_files() -> list[str]:
out: list[str] = []

9
app/database/db.py
View File

@@ -14,7 +14,7 @@ try:
from alembic.config import Config
from alembic.runtime.migration import MigrationContext
from alembic.script import ScriptDirectory
from sqlalchemy import create_engine
from sqlalchemy import create_engine, event
from sqlalchemy.orm import sessionmaker
_DB_AVAILABLE = True
@@ -75,6 +75,13 @@ def init_db():
# Check if we need to upgrade
engine = create_engine(db_url)
# Enable foreign key enforcement for SQLite
@event.listens_for(engine, "connect")
def set_sqlite_pragma(dbapi_connection, connection_record):
cursor = dbapi_connection.cursor()
cursor.execute("PRAGMA foreign_keys=ON")
cursor.close()
conn = engine.connect()
context = MigrationContext.configure(conn)