wip: mixin stuff #4
Conversation
Reviewer's Guide by SourceryThe pull request refactors the MongoDB spec base class by breaking it down into smaller, focused mixins. The implementation uses a composition-based approach where each mixin handles a specific aspect of MongoDB operations (CRUD, indexing, integrity, sessions, signals). This improves code organization, maintainability, and makes the codebase more modular. Class diagram for SpecBase and MixinsclassDiagram
class SpecBase {
<<interface>>
}
class CrudMixin {
+insert()
+unset()
+update()
+upsert()
+delete()
+find()
+find_one()
+reload()
+insert_many()
+update_many()
+unset_many()
+delete_many()
+soft_delete()
+find_active()
}
class IndexManagementMixin {
+create_index()
+drop_index()
+list_indexes()
}
class IntegrityMixin {
+cascade()
+nullify()
+pull()
}
class SessionTransactionMixin {
+transaction()
}
class SignalMixin {
+listen()
+stop_listening()
}
SpecBase <|-- CrudMixin
SpecBase <|-- IndexManagementMixin
SpecBase <|-- IntegrityMixin
SpecBase <|-- SessionTransactionMixin
SpecBase <|-- SignalMixin
Class diagram for MongoBaseMixin and QueryMixinclassDiagram
class MongoBaseMixin {
+from_document()
+from_raw_bson()
+get_collection()
+get_db()
+with_options()
+_path_to_value()
+_path_to_keys()
+_ensure_specs()
+_apply_sub_specs()
+_flatten_projection()
+_dereference()
+_remove_keys()
}
class QueryMixin {
+by_id()
+count()
+ids()
+one()
+many()
}
MongoBaseMixin <|-- QueryMixin
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Caution Review failedThe pull request is closed. WalkthroughThe changes in this pull request involve significant refactoring and enhancements across multiple files in the Changes
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Actionable comments posted: 14
🧹 Outside diff range and nitpick comments (13)
mongospecs/mixins/session.py (1)
20-27: Consider adding logging for transaction eventsAdding logging statements when transactions are committed or aborted can assist in debugging and monitoring transaction flow.
You may add logging within the
tryandexceptblocks:import logging # At the top of the file logger = logging.getLogger(__name__) # Inside the transaction method try: yield session # Allow operations to be performed within this session session.commit_transaction() # Commit if no exceptions signal("transaction_committed").send(cls) # Emit signal after commit logger.info("Transaction committed successfully.") except (ConnectionFailure, OperationFailure) as e: session.abort_transaction() # Abort on error signal("transaction_aborted").send(cls) # Emit signal after abort logger.error("Transaction aborted due to an exception.", exc_info=True) raise e # Re-raise the exception for handlingmongospecs/mixins/base.py (3)
8-8: Why you importing 'ASCENDING' if you ain't using it, fool!The import
pymongo.ASCENDINGon line 8 is unused. Get rid of it!🧰 Tools
🪛 Ruff (0.8.2)
8-8:
pymongo.ASCENDINGimported but unusedRemove unused import:
pymongo.ASCENDING(F401)
13-15: Duplicate imports ain't cool, fool!You've imported
typing as ttwice on lines 13 and 15. Remove one of them!
31-33: Keep your return types consistent, fool!In
from_raw_bson, returnSelfinstead oft.Anyto matchfrom_document. Consistency is key!Apply this diff:
- def from_raw_bson(cls, raw_bson: t.Any) -> t.Any: + def from_raw_bson(cls, raw_bson: t.Any) -> Self:mongospecs/mixins/integrity.py (1)
3-3: Don't import what you ain't using, fool!The import of
SpecBaseTypeon line 3 is unused. Get rid of it!🧰 Tools
🪛 Ruff (0.8.2)
3-3:
..types.SpecBaseTypeimported but unusedRemove unused import:
..types.SpecBaseType(F401)
mongospecs/mixins/query.py (2)
11-23: Smart thinking with that count method, fool!Using
estimated_document_countfor empty filters andcount_documentsotherwise is the optimal approach for MongoDB performance. You're doing it right!Consider adding an index on frequently filtered fields to make these counts faster in production.
🧰 Tools
🪛 Ruff (0.8.2)
12-12: Undefined name
FilterType(F821)
12-12: Undefined name
t(F821)
14-14: Undefined name
Condition(F821)
14-14: Undefined name
Group(F821)
17-17: Undefined name
to_refs(F821)
20-20: Undefined name
to_refs(F821)
35-62: This one method needs some error handling love, sucka!While the method handles the not-found case properly, we should add some validation for the input filter.
@classmethod def one(cls, filter: FilterType = None, **kwargs: t.Any) -> t.Optional[Self]: """Return the first spec object matching the filter""" + if filter and not isinstance(filter, (dict, Condition, Group)): + raise TypeError(f"Filter must be a dict, Condition, or Group, not {type(filter)}") + # Flatten the projection kwargs["projection"], references, subs = cls._flatten_projection( kwargs.get("projection", cls._default_projection) )🧰 Tools
🪛 Ruff (0.8.2)
36-36: Undefined name
FilterType(F821)
36-36: Undefined name
t(F821)
36-36: Undefined name
t(F821)
36-36: Undefined name
Self(F821)
44-44: Undefined name
Condition(F821)
44-44: Undefined name
Group(F821)
47-47: Undefined name
to_refs(F821)
mongospecs/msgspec.py (1)
Line range hint
36-42: These comparison methods are doing it right!The
__eq__and__lt__implementations using_idare correct and efficient. That's how we handle MongoDB document comparisons!Make sure your MongoDB indexes include
_idfor optimal sorting performance when using these comparison methods.🧰 Tools
🪛 Ruff (0.8.2)
8-8:
.types.SpecDocumentTypeimported but unusedRemove unused import:
.types.SpecDocumentType(F401)
mongospecs/pydantic.py (5)
40-42: Listen up, fool! Your config needs some muscle!I see you allowing arbitrary types and name population, but where's your strict validation settings? A strong defense is the best offense!
Here's what a real tough config looks like:
- model_config = ConfigDict(arbitrary_types_allowed=True, populate_by_name=True) + model_config = ConfigDict( + arbitrary_types_allowed=True, + populate_by_name=True, + strict=True, + validate_assignment=True + )
Line range hint
56-73: I pity the fool who doesn't handle field removal safely!Hey fool, you got a critical bug in your unset method! You're removing fields from model_fields_set before checking if they exist! That's gonna crash faster than a fool running into Mr. T!
Here's how a real tough guy handles field removal:
def unset(self, *fields: t.Any) -> None: signal("update").send(self.__class__, specs=[self]) unset = {} for field in fields: + if field not in self.model_fields_set: + continue setattr(self, field, self._empty_type) unset[field] = True self.model_fields_set.remove(field)
Line range hint
95-103: This SubSpec is too skinny, fool!The code works, but it ain't got enough muscle! Where's your validation? Where's your error handling? I pity the fool who doesn't protect their data!
Here's how to beef it up:
def get(self, name: str, default: t.Any = None) -> t.Any: + if not isinstance(name, str): + raise TypeError(f"Expected string key, got {type(name)}") return self.to_dict().get(name, default) def to_dict(self) -> dict[str, t.Any]: + try: return self.model_dump() + except Exception as e: + raise ValueError(f"Failed to convert model to dict: {e}")
Line range hint
109-120: Hey fool! Where's your code at?You got an empty class with just a docstring! I pity the fool who commits placeholder code! This adapter ain't gonna adapt nothing!
You need some real implementation here, sucka! Want me to show you how a real adapter should look? Just say the word, and I'll open an issue with a proper implementation!
Line range hint
123-137: Your builder needs more protection, fool!The code's tough, but it ain't bulletproof! You need to handle them errors and validate them inputs! And what's with that type ignore? A real tough guy doesn't ignore types!
Here's how to make it stronger:
def __call__( self, obj: type[T], *, collection: str, client: t.Optional[MongoClient[t.Any]] = None, **kwds: t.Any ) -> t.Any: + if not isinstance(collection, str) or not collection.strip(): + raise ValueError("Collection name must be a non-empty string!") + + if not isinstance(obj, type) or not issubclass(obj, BaseModel): + raise TypeError(f"Expected a Pydantic model class, got {type(obj)}") + class BuiltSpecAdapter(obj, Spec): # type: ignore pass BuiltSpecAdapter.__name__ = f"{obj.__name__}SpecAdapter" BuiltSpecAdapter._collection = collection BuiltSpecAdapter.__doc__ = obj.__doc__ if client: + if not isinstance(client, MongoClient): + raise TypeError("client must be an instance of MongoClient") BuiltSpecAdapter._client = client return BuiltSpecAdapter
📜 Review details
Configuration used: CodeRabbit UI
Review profile: CHILL
📒 Files selected for processing (12)
mongospecs/attrs.py(3 hunks)mongospecs/base.py(1 hunks)mongospecs/mixins/base.py(1 hunks)mongospecs/mixins/crud.py(1 hunks)mongospecs/mixins/index.py(1 hunks)mongospecs/mixins/integrity.py(1 hunks)mongospecs/mixins/query.py(1 hunks)mongospecs/mixins/session.py(1 hunks)mongospecs/mixins/signal.py(1 hunks)mongospecs/msgspec.py(2 hunks)mongospecs/pydantic.py(2 hunks)mongospecs/types.py(1 hunks)
🧰 Additional context used
🪛 Ruff (0.8.2)
mongospecs/mixins/integrity.py
3-3: ..types.SpecBaseType imported but unused
Remove unused import: ..types.SpecBaseType
(F401)
7-7: Undefined name Specs
(F821)
9-9: Undefined name to_refs
(F821)
13-13: Undefined name Specs
(F821)
15-15: Undefined name to_refs
(F821)
19-19: Undefined name Specs
(F821)
21-21: Undefined name to_refs
(F821)
mongospecs/msgspec.py
8-8: .types.SpecDocumentType imported but unused
Remove unused import: .types.SpecDocumentType
(F401)
mongospecs/mixins/query.py
7-7: Undefined name ObjectId
(F821)
7-7: Undefined name t
(F821)
7-7: Undefined name t
(F821)
7-7: Undefined name Self
(F821)
12-12: Undefined name FilterType
(F821)
12-12: Undefined name t
(F821)
14-14: Undefined name Condition
(F821)
14-14: Undefined name Group
(F821)
17-17: Undefined name to_refs
(F821)
20-20: Undefined name to_refs
(F821)
25-25: Undefined name FilterType
(F821)
25-25: Undefined name t
(F821)
25-25: Undefined name ObjectId
(F821)
28-28: Undefined name Condition
(F821)
28-28: Undefined name Group
(F821)
31-31: Undefined name to_refs
(F821)
36-36: Undefined name FilterType
(F821)
36-36: Undefined name t
(F821)
36-36: Undefined name t
(F821)
36-36: Undefined name Self
(F821)
44-44: Undefined name Condition
(F821)
44-44: Undefined name Group
(F821)
47-47: Undefined name to_refs
(F821)
64-64: Undefined name FilterType
(F821)
64-64: Undefined name t
(F821)
64-64: Undefined name Self
(F821)
72-72: Undefined name Condition
(F821)
72-72: Undefined name Group
(F821)
75-75: Undefined name to_refs
(F821)
mongospecs/base.py
6-6: mongospecs.types.SpecBaseType imported but unused
Remove unused import: mongospecs.types.SpecBaseType
(F401)
11-11: .mixins.query.QueryMixin imported but unused
Remove unused import: .mixins.query.QueryMixin
(F401)
mongospecs/attrs.py
11-11: .types.SpecDocumentType imported but unused
Remove unused import: .types.SpecDocumentType
(F401)
mongospecs/mixins/crud.py
17-17: Undefined name to_refs
(F821)
61-61: Undefined name to_refs
(F821)
119-119: Undefined name Condition
(F821)
119-119: Undefined name Group
(F821)
122-122: Undefined name to_refs
(F821)
147-147: Undefined name Condition
(F821)
147-147: Undefined name Group
(F821)
150-150: Undefined name Collection
(F821)
151-151: Undefined name to_refs
(F821)
174-174: Undefined name SpecsOrRawDocuments
(F821)
174-174: Undefined name Specs
(F821)
183-183: Undefined name to_refs
(F821)
204-204: Undefined name SpecsOrRawDocuments
(F821)
231-231: Undefined name to_refs
(F821)
233-233: Undefined name to_refs
(F821)
244-244: Undefined name UpdateOne
(F821)
253-253: Undefined name SpecsOrRawDocuments
(F821)
281-281: Undefined name SpecsOrRawDocuments
(F821)
320-320: Undefined name Condition
(F821)
320-320: Undefined name Group
(F821)
mongospecs/mixins/base.py
8-8: pymongo.ASCENDING imported but unused
Remove unused import: pymongo.ASCENDING
(F401)
🔇 Additional comments (5)
mongospecs/mixins/signal.py (1)
1-13: Looks solid, fool!
The SignalMixin is set up right. Good job!
mongospecs/attrs.py (1)
31-31: Listen up, fool! These class signatures are looking much cleaner now!
The removal of generic type parameters from Spec(SpecBase) and AttrsAdapter(AttrsInstance, SpecBase) makes the code cleaner while maintaining type safety through the mixin architecture. That's the A-Team way of doing it!
Also applies to: 77-77
mongospecs/mixins/query.py (1)
6-9: This by_id method is clean and simple, I like it!
Good job wrapping the one method for ID lookups. That's how we keep our code DRY!
🧰 Tools
🪛 Ruff (0.8.2)
7-7: Undefined name ObjectId
(F821)
7-7: Undefined name t
(F821)
7-7: Undefined name t
(F821)
7-7: Undefined name Self
(F821)
mongospecs/msgspec.py (1)
15-15: These class changes are looking strong, just like Mr. T!
The simplified inheritance without generic types makes the code cleaner while maintaining proper functionality through the mixin architecture. Good job, fool!
Also applies to: 59-59
mongospecs/pydantic.py (1)
Line range hint 15-37: I approve this ObjectId handling, fool!
Hey sucka, this is some clean code right here! You followed Pydantic's best practices for custom type validation. But I pity the fool who doesn't verify their custom types!
Let me help you verify this implementation, fool!
✅ Verification successful
Listen up, fool! Your ObjectId implementation is rock solid!
I checked every nook and cranny of your code, and here's what I found:
- The
PyObjectIdcustom type is used correctly as theidfield in your Pydantic models - The
ObjectIdhandling is consistent across all your adapters (Pydantic, Attrs, and MsgSpec) - Your serialization/deserialization is properly handling ObjectId conversion in both BSON and JSON formats
- The test files show proper usage of ObjectId in all your test cases
I pity the fool who doubts this implementation! It's following all the best practices and is used consistently throughout the codebase.
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Check if this ObjectId implementation is used consistently across the codebase
rg -l "ObjectId" | xargs rg "Annotated.*ObjectId"
Length of output: 136
Script:
#!/bin/bash
# Let's check where PyObjectId is actually used, fool!
rg "PyObjectId"
# And let's make sure there ain't no other ObjectId annotations sneaking around!
ast-grep --pattern 'Annotated[$$$ObjectId$$$]'
# Check if there are any direct ObjectId usages we should know about
rg "ObjectId" -A 2 -B 2
Length of output: 14503
![sourcery-ai[bot]](https://avatars.githubusercontent.com/in/48477?s=60&v=4){kind=small}
There was a problem hiding this comment.
Hey @jaykv - I've reviewed your changes - here's some feedback:
Overall Comments:
- Consider updating the PR title to better describe the refactoring work, e.g. 'refactor: split SpecBase into focused MongoDB operation mixins'
Here's what I looked at during the review
- 🟢 General issues: all looks good
- 🟢 Security: all looks good
- 🟢 Testing: all looks good
- 🟢 Complexity: all looks good
- 🟢 Documentation: all looks good
Help me be more useful! Please click 👍 or 👎 on each comment and I'll use the feedback to improve your reviews.
| if not isinstance(other, self.__class__): | ||
| return False | ||
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| return self._id == other._id |
There was a problem hiding this comment.
suggestion (code-quality): We've found these issues:
- Lift code into else after jump in control flow (
reintroduce-else) - Swap if/else branches (
swap-if-else-branches) - Replace if statement with if expression (
assign-if-exp)
| if not isinstance(other, self.__class__): | |
| return False | |
| return self._id == other._id | |
| return self._id == other._id if isinstance(other, self.__class__) else False |
| sub._apply_projection(raw_subs, projection) | ||
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| @classmethod | ||
| def _flatten_projection( |
There was a problem hiding this comment.
issue (code-quality): Low code quality found in MongoBaseMixin._flatten_projection - 23% (low-code-quality)
Explanation
The quality score for this function is below the quality threshold of 25%.This score is a combination of the method length, cognitive complexity and working memory.
How can you solve this?
It might be worth refactoring this function to make it shorter and more readable.
- Reduce the function length by extracting pieces of functionality out into
their own functions. This is the most important thing you can do - ideally a
function should be less than 10 lines. - Reduce nesting, perhaps by introducing guard clauses to return early.
- Ensure that variables are tightly scoped, so that code using related concepts
sits together within the function rather than being scattered.
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| # Find the document | ||
| if isinstance(filter, (Condition, Group)): | ||
| filter = filter.to_dict() |
There was a problem hiding this comment.
issue (code-quality): Don't assign to builtin variable filter (avoid-builtin-shadow)
Explanation
Python has a number ofbuiltin variables: functions and constants thatform a part of the language, such as
list, getattr, and type(See https://docs.python.org/3/library/functions.html).
It is valid, in the language, to re-bind such variables:
list = [1, 2, 3]However, this is considered poor practice.
- It will confuse other developers.
- It will confuse syntax highlighters and linters.
- It means you can no longer use that builtin for its original purpose.
How can you solve this?
Rename the variable something more specific, such as integers.
In a pinch, my_list and similar names are colloquially-recognized
placeholders.
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| # Find the document | ||
| if isinstance(filter, (Condition, Group)): | ||
| filter = filter.to_dict() |
There was a problem hiding this comment.
issue (code-quality): Don't assign to builtin variable filter (avoid-builtin-shadow)
Explanation
Python has a number ofbuiltin variables: functions and constants thatform a part of the language, such as
list, getattr, and type(See https://docs.python.org/3/library/functions.html).
It is valid, in the language, to re-bind such variables:
list = [1, 2, 3]However, this is considered poor practice.
- It will confuse other developers.
- It will confuse syntax highlighters and linters.
- It means you can no longer use that builtin for its original purpose.
How can you solve this?
Rename the variable something more specific, such as integers.
In a pinch, my_list and similar names are colloquially-recognized
placeholders.
| filter = {} | ||
| if isinstance(filter, (Condition, Group)): | ||
| filter = filter.to_dict() |
There was a problem hiding this comment.
issue (code-quality): Don't assign to builtin variable filter [×2] (avoid-builtin-shadow)
Explanation
Python has a number ofbuiltin variables: functions and constants thatform a part of the language, such as
list, getattr, and type(See https://docs.python.org/3/library/functions.html).
It is valid, in the language, to re-bind such variables:
list = [1, 2, 3]However, this is considered poor practice.
- It will confuse other developers.
- It will confuse syntax highlighters and linters.
- It means you can no longer use that builtin for its original purpose.
How can you solve this?
Rename the variable something more specific, such as integers.
In a pinch, my_list and similar names are colloquially-recognized
placeholders.
Python has a number of builtin variables: functions and constants that
form a part of the language, such as list, getattr, and type
(See https://docs.python.org/3/library/functions.html).
It is valid, in the language, to re-bind such variables:
list = [1, 2, 3]However, this is considered poor practice.
- It will confuse other developers.
- It will confuse syntax highlighters and linters.
- It means you can no longer use that builtin for its original purpose.
How can you solve this?
Rename the variable something more specific, such as integers.
In a pinch, my_list and similar names are colloquially-recognized
placeholders.
| filter = to_refs(filter) | ||
|
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||
| if filter: |
There was a problem hiding this comment.
suggestion (code-quality): We've found these issues:
- Use named expression to simplify assignment and conditional (
use-named-expression) - Don't assign to builtin variable
filter(avoid-builtin-shadow)
| filter = to_refs(filter) | |
| if filter: | |
| if filter := to_refs(filter): |
Explanation
Python has a number of
builtin variables: functions and constants thatform a part of the language, such as
list, getattr, and type(See https://docs.python.org/3/library/functions.html).
It is valid, in the language, to re-bind such variables:
list = [1, 2, 3]However, this is considered poor practice.
- It will confuse other developers.
- It will confuse syntax highlighters and linters.
- It means you can no longer use that builtin for its original purpose.
How can you solve this?
Rename the variable something more specific, such as integers.
In a pinch, my_list and similar names are colloquially-recognized
placeholders.
| """Return a list of Ids for documents matching the filter""" | ||
| # Find the documents | ||
| if isinstance(filter, (Condition, Group)): | ||
| filter = filter.to_dict() |
There was a problem hiding this comment.
issue (code-quality): Don't assign to builtin variable filter (avoid-builtin-shadow)
Explanation
Python has a number ofbuiltin variables: functions and constants thatform a part of the language, such as
list, getattr, and type(See https://docs.python.org/3/library/functions.html).
It is valid, in the language, to re-bind such variables:
list = [1, 2, 3]However, this is considered poor practice.
- It will confuse other developers.
- It will confuse syntax highlighters and linters.
- It means you can no longer use that builtin for its original purpose.
How can you solve this?
Rename the variable something more specific, such as integers.
In a pinch, my_list and similar names are colloquially-recognized
placeholders.
|
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||
| # Find the document | ||
| if isinstance(filter, (Condition, Group)): | ||
| filter = filter.to_dict() |
There was a problem hiding this comment.
issue (code-quality): Don't assign to builtin variable filter (avoid-builtin-shadow)
Explanation
Python has a number ofbuiltin variables: functions and constants thatform a part of the language, such as
list, getattr, and type(See https://docs.python.org/3/library/functions.html).
It is valid, in the language, to re-bind such variables:
list = [1, 2, 3]However, this is considered poor practice.
- It will confuse other developers.
- It will confuse syntax highlighters and linters.
- It means you can no longer use that builtin for its original purpose.
How can you solve this?
Rename the variable something more specific, such as integers.
In a pinch, my_list and similar names are colloquially-recognized
placeholders.
|
|
||
| # Find the documents | ||
| if isinstance(filter, (Condition, Group)): | ||
| filter = filter.to_dict() |
There was a problem hiding this comment.
issue (code-quality): Don't assign to builtin variable filter (avoid-builtin-shadow)
Explanation
Python has a number ofbuiltin variables: functions and constants thatform a part of the language, such as
list, getattr, and type(See https://docs.python.org/3/library/functions.html).
It is valid, in the language, to re-bind such variables:
list = [1, 2, 3]However, this is considered poor practice.
- It will confuse other developers.
- It will confuse syntax highlighters and linters.
- It means you can no longer use that builtin for its original purpose.
How can you solve this?
Rename the variable something more specific, such as integers.
In a pinch, my_list and similar names are colloquially-recognized
placeholders.
Summary by Sourcery
Refactor the codebase to use mixins for various functionalities in the SpecBase class, enhancing modularity and maintainability. Move utility functions and type definitions to dedicated modules.
Enhancements:
Chores:
Summary by CodeRabbit
New Features
Improvements
Bug Fixes