16 Commits
Author SHA1 Message Date
dsql 59c0258aff release: 1.0.0
first stable release. pre-1.0.0 verification complete: all surviving MED regressions and
gaps resolved and independently re-fired, tree audited clean across the suite.

Signed-off-by: disqualifier <dev@disqualifier.me>
2026-07-09 18:53:15 -04:00
dsql d89a91e2d9 refactor: derive __version__ from package metadata (single source)
Signed-off-by: disqualifier <dev@disqualifier.me>
2026-07-03 17:00:03 -04:00
dsql fbd94d6c81 docs: add missing trailing newline to README
Signed-off-by: disqualifier <dev@disqualifier.me>
2026-07-03 16:23:37 -04:00
dsql aedc8f3b84 docs: compress prose/module docstrings, em-dash->hyphen (de-bloat wave 1)
Signed-off-by: disqualifier <dev@disqualifier.me>
2026-07-03 00:14:55 -04:00
dsql 0a68b65937 fix: close the motor client if an invalid db name raises in __init__ (mongo-9)
self._client[database] can raise InvalidName after the client is already
built, leaking it via any exception traceback the caller holds. close it
before re-raising, matching the __aenter__ leak fix. also compresses essay
docstrings/comments across the module with no behavior change, keeping the
swallow-and-default contract note and the matched_count/nInserted footguns.

Signed-off-by: disqualifier <dev@disqualifier.me>
2026-07-02 23:28:04 -04:00
dsql 30f0e44097 fix: correct wrong success predicates in upsert_document_field and create_documents
upsert_document_field returned False for an idempotent no-op upsert on an
existing document (modified_count=0, upserted_id=None) even though the doc
matched the requested state; switch to matched_count like its update_document_field
and update_document_operator siblings.

create_documents returned 0 on a partial insert_many failure, discarding the
BulkWriteError's nInserted count and inviting callers to retry the whole batch
on a wrongly-reported failure, duplicating documents that had already landed.
Catch BulkWriteError specifically and return e.details['nInserted'].

Bump to v0.1.7.

Signed-off-by: disqualifier <dev@disqualifier.me>
2026-07-02 17:22:31 -04:00
dsql 9da851629d fix: rename create_collection indexes->index + doc notes (mongo-3/4/5)
- mongo-3: create_collection param renamed indexes -> index (it seeds ONE index; a key-spec
  builds one compound index, not two). update keyword call sites indexes= -> index=.
- mongo-4: docstring notes an instance is single-use after close() (pymongo 4.x close is
  irreversible; connect() only pings).
- mongo-5: docstring notes construction may raise InvalidURI for a malformed URI.
- README: create_collection index note. bump v0.1.5 -> v0.1.6

Signed-off-by: disqualifier <dev@disqualifier.me>
2026-07-01 00:28:36 -04:00
dsql ebd808f326 fix: async with closes the motor client when connect()/ping fails (mongo-1)
__aenter__ delegated to connect(); when the ping raised on a bad server, __aexit__ was not
called so the eagerly-constructed motor client (with its background topology monitor + pool)
leaked. a retry loop against a flapping DB accumulated live clients. now close-on-failure.
verified: 5 failed async-with blocks leave 0 open clients (was 5). bump v0.1.4 -> v0.1.5

Signed-off-by: disqualifier <dev@disqualifier.me>
2026-06-30 21:04:51 -04:00
dsql e20368287d feat: MongoDB class (Mongo kept as alias) + connect()/async with + exists/delete aliases
additive only — every existing name preserved, swallow contract unchanged. brings mongo
in line with the redis/psql/mysql datastore trio's naming/lifecycle. bump v0.1.3 -> v0.1.4

Signed-off-by: disqualifier <dev@disqualifier.me>
2026-06-29 23:11:11 -04:00
dsql 1d55efbcdd chore: ignore .claude/ dir (CLAUDE.md now lives under .claude/)
Signed-off-by: disqualifier <dev@disqualifier.me>
2026-06-29 21:55:13 -04:00
dsql fe8f2da480 fix: annotate database property return type (AsyncIOMotorDatabase)
Signed-off-by: disqualifier <dev@disqualifier.me>
2026-06-29 21:35:22 -04:00
dsql 9ad3458cf9 fix: align push helpers to matched_count for success-contract consistency (v0.1.3)
mongo-1: document_push_array and document_push_and_set still returned modified_count>0
while the v0.1.2 wave moved the sibling single-doc update helpers to matched_count>0.
$push always mutates so the two agree in practice (no reachable behavioral change), but
the helpers now match the documented 'True when a document matched' contract uniformly.

sibling-grep: zero consumers of either push helper.
Signed-off-by: disqualifier <dev@disqualifier.me>
2026-06-29 20:48:08 -04:00
dsql 816c71a3f5 docs: pin install line to release, note unpinned-latest option
Signed-off-by: disqualifier <dev@disqualifier.me>
2026-06-29 18:13:56 -04:00
dsql 6103d63b9f docs: show unpinned install line; note tag-pinning for reproducibility
Signed-off-by: disqualifier <dev@disqualifier.me>
2026-06-29 18:07:41 -04:00
dsql 51592567e1 fix: matched_count for idempotent updates; document drop-on-missing-key (v0.1.2)
- update_document_field/update_document_operator/document_pop_array return
  matched_count > 0, so an idempotent write that matched a doc but changed nothing
  ( to the same value,  of an absent value) reports success instead of False
  (L19)
- document the bare-proxy escape hatch is mongo.collection(name) not mongo[name], and
  that get_document_hashmap/get_document_fields skip docs missing the key (nits).

Signed-off-by: disqualifier <dev@disqualifier.me>
2026-06-29 17:58:26 -04:00
dsql 3ceef9c4a8 fix: add check_document_exists; rename do_upsert -> upsert
added check_document_exists(collection, target) -> bool (count_documents(target, limit=1) > 0) — it existed only in the talos origin and was not carried over, but the talos caller relies on it. renamed the do_upsert param to upsert on update_document/find_one_and_update/find_one_and_replace, standardizing on motor's name (the talos caller already passes upsert=). param rename is breaking; patch is fine under the no-consumer policy. bump to v0.1.1.

Signed-off-by: disqualifier <dev@disqualifier.me>
2026-06-29 03:25:17 -04:00
5 changed files with 195 additions and 81 deletions
+1 -1
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@@ -1,5 +1,5 @@
# claude # claude
CLAUDE.md .claude/
# python # python
__pycache__/ __pycache__/
+35 -6
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@@ -8,29 +8,39 @@ helpers for the common paths, with a raw escape hatch for everything else.
`requirements.txt`: `requirements.txt`:
``` ```
mongo @ git+ssh://git@git.rethinkstudios.io/rethink-public/mongo.git@v0.1.0 mongo @ git+ssh://git@git.rethinkstudios.io/rethink-public/mongo.git@v1.0.0
``` ```
Direct: Direct:
```bash ```bash
pip install "mongo @ git+ssh://git@git.rethinkstudios.io/rethink-public/mongo.git@v0.1.0" pip install "mongo @ git+ssh://git@git.rethinkstudios.io/rethink-public/mongo.git@v1.0.0"
``` ```
Requires `motor` and `pymongo` (pulled transitively). Requires `motor` and `pymongo` (pulled transitively).
Drop the `@v1.0.0` suffix from the line above to install the latest unpinned.
## Usage ## Usage
**Object (preferred)** — one client per process: **Object (preferred)** — one client per process:
```python ```python
from mongo import Mongo from mongo import MongoDB
db = Mongo(conn_string, database) # attach as bot.db / app.db db = MongoDB(conn_string, database) # attach as bot.db / app.db
await db.connect() # optional: ping to fail-early on a bad URI
users = await db.get_documents("users", {"active": True}) users = await db.get_documents("users", {"active": True})
db.close() # on shutdown (sync) db.close() # on shutdown (sync)
# or with guaranteed cleanup:
async with MongoDB(conn_string, database) as db:
await db.get_documents("users", {"active": True})
``` ```
The class is `MongoDB`; **`Mongo` remains a back-compat alias** (`Mongo = MongoDB`), so
existing `Mongo(...)` call sites keep working unchanged.
**Module proxy (back-compat)** — arm once, then call bare: **Module proxy (back-compat)** — arm once, then call bare:
```python ```python
@@ -42,10 +52,26 @@ users = await mongo.get_documents("users", {"active": True})
Both styles share one client. The proxy exists so legacy call sites keep working Both styles share one client. The proxy exists so legacy call sites keep working
after a one-line `init()`; new code should use the object. after a one-line `init()`; new code should use the object.
## Naming consistency with the datastore trio
mongo predates the `redis`/`psql`/`mysql` trio; this version makes it surface-consistent
**without breaking anything** (all additive, every old name preserved):
- class is **`MongoDB`** (with `Mongo` kept as an alias)
- **`connect()`** + **`async with`** like the trio (motor connects lazily, so `connect()`
just pings to validate early)
- **`exists()`** aliases `check_document_exists()`; **`delete()`** aliases
`delete_document()` — old names still work, the trio-consistent names are now available
The one deliberate difference that remains: **mongo swallows** (see below) where the trio
is **fail-loud**. That's intentional — flipping it would break existing consumers' branch-
on-result control flow.
## Error contract ## Error contract
- **Wrapped methods** log-and-swallow exceptions and return a safe default - **Wrapped methods** log-and-swallow exceptions and return a safe default
(`False` / `[]` / `{}` / `0` / `None`). Branch on the result. (`False` / `[]` / `{}` / `0` / `None`). Branch on the result. (`connect()` is the
exception — it raises on a bad connection so you can fail-early.)
- **`db.collection(name)`** (or `db[name]`) returns the raw motor collection: - **`db.collection(name)`** (or `db[name]`) returns the raw motor collection:
full driver surface, no swallowing, **raises**. Use it for anything not wrapped full driver surface, no swallowing, **raises**. Use it for anything not wrapped
(`find_one_and_*` beyond what's exposed, change streams, complex bulk ops). (`find_one_and_*` beyond what's exposed, change streams, complex bulk ops).
@@ -61,6 +87,9 @@ are included.
- `from mongo import func` won't see the proxy (resolved at import, before `init`). - `from mongo import func` won't see the proxy (resolved at import, before `init`).
Use `import mongo` then `mongo.func(...)`. Use `import mongo` then `mongo.func(...)`.
- `create_collection(collection, index=...)` seeds **one** index (the param is `index`,
renamed from `indexes` in v0.1.6). A key-spec like `[("a",1),("b",1)]` builds one
compound index, not two — call `create_index` per index for multiples.
- `find_one_and_update` returns the **after** image by default (`return_after=True`). - `find_one_and_update` returns the **after** image by default (`return_after=True`).
- `bulk_write` takes pymongo ops the caller builds: - `bulk_write` takes pymongo ops the caller builds:
```python ```python
@@ -71,4 +100,4 @@ are included.
## Versioning ## Versioning
Tagged `vX.Y.Z`. Pin the tag in `requirements.txt`; bump deliberately. Releases are tagged `vX.Y.Z`. The install line above pins a release; drop the `@vX.Y.Z` suffix to install the latest unpinned. Pin deliberately for reproducible installs.
+1 -1
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@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
[project] [project]
name = "mongo" name = "mongo"
version = "0.1.0" version = "1.0.0"
description = "async mongodb wrapper over motor with a raw escape hatch" description = "async mongodb wrapper over motor with a raw escape hatch"
requires-python = ">=3.10" requires-python = ">=3.10"
dependencies = [ dependencies = [
+12 -8
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@@ -1,14 +1,18 @@
from .mongo import Mongo, init, instance from importlib.metadata import PackageNotFoundError, version
__all__ = ["Mongo", "init", "instance"] from .mongo import MongoDB, Mongo, init, instance
__all__ = ["MongoDB", "Mongo", "init", "instance"]
try:
__version__ = version("mongo")
except PackageNotFoundError:
__version__ = "0.0.0+unknown"
def __getattr__(name: str): def __getattr__(name: str):
"""proxy bare package attribute access to the default instance (PEP 562) """proxy bare attribute access to the default instance (PEP 562); needs
`import mongo`, not `from mongo import func` (resolved before init)"""
lets `import mongo; await mongo.get_documents(...)` work after init(). if not name.startswith("_") and hasattr(MongoDB, name):
`from mongo import func` still won't see this (resolved before init)
"""
if not name.startswith("_") and hasattr(Mongo, name):
return getattr(instance(), name) return getattr(instance(), name)
raise AttributeError(f"module {__name__!r} has no attribute {name!r}") raise AttributeError(f"module {__name__!r} has no attribute {name!r}")
+145 -64
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@@ -1,43 +1,62 @@
""" """
async mongodb wrapper over motor async mongodb wrapper over motor, with a raw escape hatch for anything not wrapped
object (preferred), one client per process: from mongo import MongoDB
from mongo import Mongo db = MongoDB(conn_string, database)
bot.db = Mongo(conn_string, database) await db.get_documents("users", {"active": True})
await bot.db.get_documents("users", {"active": True})
bot.db.close() # on shutdown (sync)
module proxy (back-compat), arm once then call bare: `Mongo` is a back-compat alias of `MongoDB`. A module-proxy path also exists
import mongo # not `from mongo import ...` (`mongo.init(...)` then bare `mongo.func(...)`) - see README for both usage patterns.
mongo.init(conn_string, database)
await mongo.get_documents("users", {"active": True})
errors: errors: wrapped methods log and swallow, returning a safe default (False / [] / {} / 0 /
wrapped methods log and swallow, returning a safe default None). .collection(name) / db[name] return the raw motor collection: full driver surface,
(False / [] / {} / 0 / None). .collection(name) / db[name] return raises, nothing swallowed. mongo SWALLOWS by design, unlike the fail-loud redis/psql/mysql
the raw motor collection: full driver surface, raises, nothing swallowed. trio - kept so existing consumers' branch-on-result control flow doesn't break.
notes:
- the proxy needs `import mongo`; `from mongo import func` resolves before init
- find_one_and_update returns the after-image by default
- bulk_write takes caller-built pymongo ops (UpdateOne/DeleteOne/...)
""" """
import logging import logging
from typing import Any, List, Optional from typing import Any, List, Optional
from pymongo import ReturnDocument from pymongo import ReturnDocument
from motor.motor_asyncio import AsyncIOMotorClient, AsyncIOMotorCollection from pymongo.errors import BulkWriteError
from motor.motor_asyncio import AsyncIOMotorClient, AsyncIOMotorCollection, AsyncIOMotorDatabase
log = logging.getLogger(__name__) log = logging.getLogger(__name__)
class Mongo: class MongoDB:
"""async mongodb wrapper; one client per process, attach to bot as bot.db""" """async mongodb wrapper; one client per process, attach to bot as bot.db"""
def __init__(self, connection_string: str, database: str): def __init__(self, connection_string: str, database: str):
self._client = AsyncIOMotorClient(connection_string) self._client = AsyncIOMotorClient(connection_string)
try:
self._db = self._client[database] self._db = self._client[database]
except BaseException:
self._client.close()
raise
async def connect(self) -> "MongoDB":
"""validate the connection with a ping and return self; raises, unlike the
swallowing wrapped methods
an instance is single-use: pymongo 4.x `close()` is irreversible and
connect() doesn't rebuild the client. construct a fresh MongoDB instead of
reusing one after close()/`async with` exit.
"""
await self._client.admin.command("ping")
return self
async def __aenter__(self) -> "MongoDB":
try:
return await self.connect()
except BaseException:
# __aexit__ isn't called when __aenter__ raises; close here so the
# client built in __init__ doesn't leak
self.close()
raise
async def __aexit__(self, exc_type, exc, tb) -> None:
self.close()
def __getitem__(self, collection: str) -> AsyncIOMotorCollection: def __getitem__(self, collection: str) -> AsyncIOMotorCollection:
"""raw collection access via subscript: bot.db['users'].aggregate(...)""" """raw collection access via subscript: bot.db['users'].aggregate(...)"""
@@ -48,7 +67,7 @@ class Mongo:
return self._db[name] return self._db[name]
@property @property
def database(self): def database(self) -> AsyncIOMotorDatabase:
"""raw motor database handle""" """raw motor database handle"""
return self._db return self._db
@@ -62,19 +81,23 @@ class Mongo:
return False return False
def close(self) -> None: def close(self) -> None:
"""close the client pool on shutdown (sync motor's close() is synchronous)""" """close the client pool on shutdown (sync - motor's close() is synchronous)"""
self._client.close() self._client.close()
# ------------------------------------------------------------------------- # -------------------------------------------------------------------------
# collection / index management # collection / index management
async def create_collection(self, collection: str, indexes=None) -> bool: async def create_collection(self, collection: str, index=None) -> bool:
"""create a collection, optionally seeding an index""" """create a collection, optionally seeding ONE index
`index` is a single key-spec (e.g. `[("a", 1), ("b", 1)]` builds one compound
index, not two) - call create_index per index for multiples
"""
try: try:
await self._db.create_collection(collection) await self._db.create_collection(collection)
if indexes: if index:
await self._db[collection].create_index(indexes) await self._db[collection].create_index(index)
log.info(f"created indexes for {collection}") log.info(f"created index for {collection}")
return True return True
except Exception: except Exception:
log.exception(f"db.create_collection() for {collection}") log.exception(f"db.create_collection() for {collection}")
@@ -130,10 +153,19 @@ class Mongo:
async def create_documents( async def create_documents(
self, collection: str, documents: List[dict], ordered: bool = True self, collection: str, documents: List[dict], ordered: bool = True
) -> int: ) -> int:
"""insert many documents, returning the inserted count""" """insert many documents, returning the inserted count
on a partial failure (e.g. ordered=False with one duplicate key) the driver
raises BulkWriteError AFTER inserting the rest; count comes from
`e.details['nInserted']` so a caller retrying on a wrongly-reported 0 doesn't
re-insert documents that already landed.
"""
try: try:
result = await self._db[collection].insert_many(documents, ordered=ordered) result = await self._db[collection].insert_many(documents, ordered=ordered)
return len(result.inserted_ids) return len(result.inserted_ids)
except BulkWriteError as e:
log.exception(f"db.create_documents() on {collection}")
return e.details.get("nInserted", 0)
except Exception: except Exception:
log.exception(f"db.create_documents() on {collection}") log.exception(f"db.create_documents() on {collection}")
return 0 return 0
@@ -181,7 +213,11 @@ class Mongo:
return [] return []
async def get_document_hashmap(self, collection: str, target: dict, key: str) -> dict: async def get_document_hashmap(self, collection: str, target: dict, key: str) -> dict:
"""return matching documents keyed into a dict by the given field""" """return matching documents keyed into a dict by the given field
documents missing `key` are skipped (not in the result); a later document
with a duplicate key value overwrites an earlier one.
"""
try: try:
cursor = self._db[collection].find(target) cursor = self._db[collection].find(target)
return {doc[key]: doc async for doc in cursor if key in doc} return {doc[key]: doc async for doc in cursor if key in doc}
@@ -192,7 +228,11 @@ class Mongo:
async def get_document_fields( async def get_document_fields(
self, collection: str, target: dict, key: str, fields: Optional[dict] = None self, collection: str, target: dict, key: str, fields: Optional[dict] = None
) -> List: ) -> List:
"""return a flat list of one field's value across matching documents""" """return a flat list of one field's value across matching documents
documents missing `key` are skipped, so the list length may be smaller than
the match count.
"""
try: try:
cursor = self._db[collection].find(target, fields) cursor = self._db[collection].find(target, fields)
return [doc[key] async for doc in cursor if key in doc] return [doc[key] async for doc in cursor if key in doc]
@@ -208,6 +248,18 @@ class Mongo:
log.exception(f"db.count_documents() on {collection}") log.exception(f"db.count_documents() on {collection}")
return 0 return 0
async def check_document_exists(self, collection: str, target: dict) -> bool:
"""return whether at least one document in collection matches target"""
try:
return await self._db[collection].count_documents(target, limit=1) > 0
except Exception:
log.exception(f"db.check_document_exists() on {collection}")
return False
async def exists(self, collection: str, target: dict) -> bool:
"""trio-consistent alias of check_document_exists"""
return await self.check_document_exists(collection, target)
async def count_value_in_array(self, collection: str, array_field: str, value: str) -> int: async def count_value_in_array(self, collection: str, array_field: str, value: str) -> int:
"""count documents whose array field contains value""" """count documents whose array field contains value"""
try: try:
@@ -271,11 +323,11 @@ class Mongo:
# update # update
async def update_document( async def update_document(
self, collection: str, target: dict, document: dict, do_upsert: bool = False self, collection: str, target: dict, document: dict, upsert: bool = False
) -> bool: ) -> bool:
"""replace a whole document, optionally upserting""" """replace a whole document, optionally upserting"""
try: try:
response = await self._db[collection].replace_one(target, document, upsert=do_upsert) response = await self._db[collection].replace_one(target, document, upsert=upsert)
return bool(response.matched_count or response.upserted_id) return bool(response.matched_count or response.upserted_id)
except Exception: except Exception:
log.exception(f"db.update_document() on {collection}") log.exception(f"db.update_document() on {collection}")
@@ -291,10 +343,15 @@ class Mongo:
return 0 return 0
async def update_document_field(self, collection: str, target: dict, updates: dict) -> bool: async def update_document_field(self, collection: str, target: dict, updates: dict) -> bool:
"""$set one or more fields on a single document""" """$set one or more fields on a single document
returns True when a document matched, even if `$set` to an identical value
leaves `modified_count=0` - uses `matched_count` so an idempotent no-op isn't
misread as a failure.
"""
try: try:
response = await self._db[collection].update_one(target, {"$set": updates}) response = await self._db[collection].update_one(target, {"$set": updates})
return response.modified_count > 0 return response.matched_count > 0
except Exception: except Exception:
log.exception(f"db.update_document_field() on {collection}") log.exception(f"db.update_document_field() on {collection}")
return False return False
@@ -302,21 +359,30 @@ class Mongo:
async def update_document_operator( async def update_document_operator(
self, collection: str, target: dict, update_query: dict self, collection: str, target: dict, update_query: dict
) -> bool: ) -> bool:
"""apply raw update operators ($set/$inc/$unset/...) to a single document""" """apply raw update operators ($set/$inc/$unset/...) to a single document
returns True when a document matched, even if the operators changed nothing -
uses `matched_count` so an idempotent write isn't misread as a failure.
"""
try: try:
response = await self._db[collection].update_one(target, update_query) response = await self._db[collection].update_one(target, update_query)
return response.modified_count > 0 return response.matched_count > 0
except Exception: except Exception:
log.exception(f"db.update_document_operator() on {collection}") log.exception(f"db.update_document_operator() on {collection}")
return False return False
async def upsert_document_field(self, collection: str, target: dict, updates: dict) -> bool: async def upsert_document_field(self, collection: str, target: dict, updates: dict) -> bool:
"""$set fields on a single document, creating it if absent""" """$set fields on a single document, creating it if absent
returns True when a document matched or was upserted, even if `$set` to an
identical value leaves `modified_count=0` - mirrors update_document_field's
matched_count-over-modified_count contract.
"""
try: try:
response = await self._db[collection].update_one( response = await self._db[collection].update_one(
target, {"$set": updates}, upsert=True target, {"$set": updates}, upsert=True
) )
return bool(response.modified_count or response.upserted_id) return bool(response.matched_count or response.upserted_id)
except Exception: except Exception:
log.exception(f"db.upsert_document_field() on {collection}") log.exception(f"db.upsert_document_field() on {collection}")
return False return False
@@ -335,10 +401,14 @@ class Mongo:
async def document_push_array( async def document_push_array(
self, collection: str, target: dict, array: str, value: Any self, collection: str, target: dict, array: str, value: Any
) -> bool: ) -> bool:
"""$push a value onto an array field""" """$push a value onto an array field
returns True when a document matched; $push always mutates, so matched_count
and modified_count agree here in practice.
"""
try: try:
response = await self._db[collection].update_one(target, {"$push": {array: value}}) response = await self._db[collection].update_one(target, {"$push": {array: value}})
return response.modified_count > 0 return response.matched_count > 0
except Exception: except Exception:
log.exception(f"db.document_push_array() on {collection}") log.exception(f"db.document_push_array() on {collection}")
return False return False
@@ -347,13 +417,16 @@ class Mongo:
self, collection: str, target: dict, array: str, value: Any, self, collection: str, target: dict, array: str, value: Any,
field_to_set: str, set_value: Any, field_to_set: str, set_value: Any,
) -> bool: ) -> bool:
"""$push to an array and $set a field in one update""" """$push to an array and $set a field in one update
returns True when a document matched (matched_count, not modified_count).
"""
try: try:
response = await self._db[collection].update_one( response = await self._db[collection].update_one(
target, target,
{"$push": {array: value}, "$set": {field_to_set: set_value}}, {"$push": {array: value}, "$set": {field_to_set: set_value}},
) )
return response.modified_count > 0 return response.matched_count > 0
except Exception: except Exception:
log.exception(f"db.document_push_and_set() on {collection}") log.exception(f"db.document_push_and_set() on {collection}")
return False return False
@@ -361,24 +434,28 @@ class Mongo:
async def document_pop_array( async def document_pop_array(
self, collection: str, target: dict, array: str, value: Any self, collection: str, target: dict, array: str, value: Any
) -> bool: ) -> bool:
"""$pull a value from an array field""" """$pull a value from an array field
returns True when a document matched, even if the value was absent and
nothing was pulled - uses `matched_count`, not `modified_count`.
"""
try: try:
response = await self._db[collection].update_one(target, {"$pull": {array: value}}) response = await self._db[collection].update_one(target, {"$pull": {array: value}})
return response.modified_count > 0 return response.matched_count > 0
except Exception: except Exception:
log.exception(f"db.document_pop_array() on {collection}") log.exception(f"db.document_pop_array() on {collection}")
return False return False
async def find_one_and_update( async def find_one_and_update(
self, collection: str, target: dict, update: dict, self, collection: str, target: dict, update: dict,
return_after: bool = True, do_upsert: bool = False, fields: Optional[dict] = None, return_after: bool = True, upsert: bool = False, fields: Optional[dict] = None,
) -> Optional[dict]: ) -> Optional[dict]:
"""atomically update one doc and return it (after-image by default)""" """atomically update one doc and return it (after-image by default)"""
try: try:
return await self._db[collection].find_one_and_update( return await self._db[collection].find_one_and_update(
target, update, target, update,
projection=fields, projection=fields,
upsert=do_upsert, upsert=upsert,
return_document=ReturnDocument.AFTER if return_after else ReturnDocument.BEFORE, return_document=ReturnDocument.AFTER if return_after else ReturnDocument.BEFORE,
) )
except Exception: except Exception:
@@ -387,14 +464,14 @@ class Mongo:
async def find_one_and_replace( async def find_one_and_replace(
self, collection: str, target: dict, document: dict, self, collection: str, target: dict, document: dict,
return_after: bool = True, do_upsert: bool = False, fields: Optional[dict] = None, return_after: bool = True, upsert: bool = False, fields: Optional[dict] = None,
) -> Optional[dict]: ) -> Optional[dict]:
"""atomically replace one doc and return it (after-image by default)""" """atomically replace one doc and return it (after-image by default)"""
try: try:
return await self._db[collection].find_one_and_replace( return await self._db[collection].find_one_and_replace(
target, document, target, document,
projection=fields, projection=fields,
upsert=do_upsert, upsert=upsert,
return_document=ReturnDocument.AFTER if return_after else ReturnDocument.BEFORE, return_document=ReturnDocument.AFTER if return_after else ReturnDocument.BEFORE,
) )
except Exception: except Exception:
@@ -423,6 +500,10 @@ class Mongo:
log.exception(f"db.delete_document() on {collection}") log.exception(f"db.delete_document() on {collection}")
return 0 return 0
async def delete(self, collection: str, target: dict) -> int:
"""trio-consistent alias of delete_document (single-document delete)"""
return await self.delete_document(collection, target)
async def delete_documents(self, collection: str, target: dict) -> int: async def delete_documents(self, collection: str, target: dict) -> int:
"""delete all matching documents, returning deleted count""" """delete all matching documents, returning deleted count"""
try: try:
@@ -436,10 +517,9 @@ class Mongo:
# bulk / checks # bulk / checks
async def bulk_write(self, collection: str, operations: list, ordered: bool = True) -> dict: async def bulk_write(self, collection: str, operations: list, ordered: bool = True) -> dict:
""" """run a batch of pymongo write ops (InsertOne/UpdateOne/DeleteOne/...)
run a batch of pymongo write ops (InsertOne/UpdateOne/DeleteOne/...)
caller builds the ops from pymongo, e.g.: caller builds the ops, e.g.:
from pymongo import UpdateOne from pymongo import UpdateOne
ops = [UpdateOne({'_id': i}, {'$set': {...}}, upsert=True) for i in ids] ops = [UpdateOne({'_id': i}, {'$set': {...}}, upsert=True) for i in ids]
returns a summary dict of counts, or an empty dict on failure returns a summary dict of counts, or an empty dict on failure
@@ -460,8 +540,7 @@ class Mongo:
async def document_check_multi( async def document_check_multi(
self, collection: str, target: dict, checks: List[str], value: str self, collection: str, target: dict, checks: List[str], value: str
) -> bool: ) -> bool:
""" """return whether a doc matching target has value in any of the given arrays
return whether a doc matching target has value in any of the given arrays
target is a normal filter dict (merged into the query), not a bare _id target is a normal filter dict (merged into the query), not a bare _id
""" """
@@ -476,25 +555,27 @@ class Mongo:
return False return False
# back-compat alias: the class was historically `Mongo`; existing `Mongo(...)` call
# sites keep working unchanged
Mongo = MongoDB
# ----------------------------------------------------------------------------- # -----------------------------------------------------------------------------
# backwards-compat module proxy # backwards-compat module proxy: `import mongo; mongo.init(conn, db)` then
# - lets legacy call sites keep using `await mongo.get_documents(...)` # bare `await mongo.func(...)`. needs `import mongo` - `from mongo import func`
# without an object, after a one-time `mongo.init(conn, db)` # resolves at import time, before init() runs.
# - works with `import mongo; mongo.func(...)` (resolved at call time)
# - does NOT work with `from mongo import func` (resolved at import,
# before init runs) — switch those sites to `import mongo`
_default: Optional[Mongo] = None _default: Optional[MongoDB] = None
def init(connection_string: str, database: str) -> Mongo: def init(connection_string: str, database: str) -> MongoDB:
"""arm the module-level default instance and return it""" """arm the module-level default instance and return it"""
global _default global _default
_default = Mongo(connection_string, database) _default = MongoDB(connection_string, database)
return _default return _default
def instance() -> Mongo: def instance() -> MongoDB:
"""return the default instance, raising if init() has not run""" """return the default instance, raising if init() has not run"""
if _default is None: if _default is None:
raise RuntimeError("mongo not initialized; call mongo.init(conn, db) first") raise RuntimeError("mongo not initialized; call mongo.init(conn, db) first")