refactor(assets): modular architecture + async two-phase scanner & background seeder (#12621)

This commit is contained in:
Luke Mino-Altherr
2026-03-07 17:37:25 -08:00
committed by GitHub
parent a7a6335be5
commit 29b24cb517
62 changed files with 10737 additions and 2878 deletions

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@@ -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)

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,
@@ -16,102 +16,102 @@ 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
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"),
CheckConstraint("size_bytes >= 0", name="ck_assets_size_nonneg"),
)
def to_dict(self, include_none: bool = False) -> dict[str, Any]:
return to_dict(self, include_none=include_none)
def __repr__(self) -> str:
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
)
deleted_at: Mapped[datetime | None] = mapped_column(
DateTime(timezone=False), nullable=True, default=None
)
asset: Mapped[Asset] = relationship(
"Asset",
back_populates="infos",
back_populates="references",
foreign_keys=[asset_id],
lazy="selectin",
)
@@ -121,51 +121,59 @@ 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_deleted_at", "deleted_at"),
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]:
data = to_dict(self, include_none=include_none)
data["tags"] = [t.name for t in self.tags]
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 +183,40 @@ 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 +226,18 @@ 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}>"

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@@ -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()

View File

@@ -0,0 +1,121 @@
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_with_owner_check,
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,
soft_delete_reference_by_id,
update_reference_access_time,
update_reference_name,
update_reference_timestamps,
update_reference_updated_at,
upsert_reference,
)
from app.assets.database.queries.tags import (
AddTagsResult,
RemoveTagsResult,
SetTagsResult,
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,
validate_tags_exist,
)
__all__ = [
"AddTagsResult",
"CacheStateRow",
"RemoveTagsResult",
"SetTagsResult",
"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_with_owner_check",
"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",
"soft_delete_reference_by_id",
"set_reference_tags",
"update_asset_hash_and_mime",
"update_reference_access_time",
"update_reference_name",
"update_reference_timestamps",
"update_reference_updated_at",
"upsert_asset",
"upsert_reference",
"validate_tags_exist",
]

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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 and ref.asset_id == from_asset_id:
ref.asset_id = to_asset_id
session.flush()

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"""Shared utilities for database query modules."""
import os
from typing import Iterable
import sqlalchemy as sa
from app.assets.database.models import AssetReference
from app.assets.helpers import escape_sql_like_string
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
yield from iter_chunks(rows, calculate_rows_per_statement(cols_per_row))
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])
def build_prefix_like_conditions(
prefixes: list[str],
) -> list[sa.sql.ColumnElement]:
"""Build LIKE conditions for matching file paths under directory prefixes."""
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))
return conds

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from dataclasses import dataclass
from typing import Iterable, Sequence
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
@dataclass(frozen=True)
class AddTagsResult:
added: list[str]
already_present: list[str]
total_tags: list[str]
@dataclass(frozen=True)
class RemoveTagsResult:
removed: list[str]
not_present: list[str]
total_tags: list[str]
@dataclass(frozen=True)
class SetTagsResult:
added: list[str]
removed: list[str]
total: list[str]
def validate_tags_exist(session: Session, tags: list[str]) -> None:
"""Raise ValueError if any of the given tag names do not exist."""
existing_tag_names = set(
name
for (name,) in session.execute(select(Tag.name).where(Tag.name.in_(tags))).all()
)
missing = [t for t in tags if t not in existing_tag_names]
if missing:
raise ValueError(f"Unknown tags: {missing}")
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",
) -> SetTagsResult:
desired = normalize_tags(tags)
current = set(get_reference_tags(session, reference_id))
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 SetTagsResult(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,
) -> AddTagsResult:
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 AddTagsResult(added=[], already_present=[], total_tags=total)
if create_if_missing:
ensure_tags_exist(session, norm, tag_type="user")
current = set(get_reference_tags(session, reference_id))
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 AddTagsResult(
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],
) -> RemoveTagsResult:
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 RemoveTagsResult(removed=[], not_present=[], total_tags=total)
existing = set(get_reference_tags(session, reference_id))
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 RemoveTagsResult(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))
.where(AssetReference.deleted_at.is_(None))
.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))
.where(AssetReference.deleted_at.is_(None))
.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)

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@@ -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",
)
)