graph LR
Model_Definition_Layer["Model Definition Layer"]
Data_Validation_Type_System["Data Validation & Type System"]
SQLAlchemy_Core_Integration["SQLAlchemy Core Integration"]
Query_Interface_QuerySet_["Query Interface (QuerySet)"]
Data_Persistence_Manager["Data Persistence Manager"]
Database_Connection_Execution_Layer["Database Connection & Execution Layer"]
Model_Definition_Layer -- "defines schema for" --> Data_Validation_Type_System
Model_Definition_Layer -- "generates constructs for" --> SQLAlchemy_Core_Integration
Data_Validation_Type_System -- "provides validation rules to" --> Model_Definition_Layer
Data_Validation_Type_System -- "validates input for" --> Data_Persistence_Manager
SQLAlchemy_Core_Integration -- "receives definitions from" --> Model_Definition_Layer
SQLAlchemy_Core_Integration -- "provides SQL expressions to" --> Query_Interface_QuerySet_
SQLAlchemy_Core_Integration -- "provides SQL expressions to" --> Data_Persistence_Manager
Query_Interface_QuerySet_ -- "constructs queries using" --> Model_Definition_Layer
Query_Interface_QuerySet_ -- "constructs queries using" --> SQLAlchemy_Core_Integration
Query_Interface_QuerySet_ -- "executes queries via" --> Database_Connection_Execution_Layer
Data_Persistence_Manager -- "operates on" --> Model_Definition_Layer
Data_Persistence_Manager -- "persists/modifies data via" --> Database_Connection_Execution_Layer
Database_Connection_Execution_Layer -- "executes expressions from" --> Query_Interface_QuerySet_
Database_Connection_Execution_Layer -- "executes expressions from" --> Data_Persistence_Manager
click Model_Definition_Layer href "https://github.com/CodeBoarding/GeneratedOnBoardings/blob/main/orm/Model_Definition_Layer.md" "Details"
click Data_Validation_Type_System href "https://github.com/CodeBoarding/GeneratedOnBoardings/blob/main/orm/Data_Validation_Type_System.md" "Details"
click SQLAlchemy_Core_Integration href "https://github.com/CodeBoarding/GeneratedOnBoardings/blob/main/orm/SQLAlchemy_Core_Integration.md" "Details"
click Query_Interface_QuerySet_ href "https://github.com/CodeBoarding/GeneratedOnBoardings/blob/main/orm/Query_Interface_QuerySet_.md" "Details"
click Database_Connection_Execution_Layer href "https://github.com/CodeBoarding/GeneratedOnBoardings/blob/main/orm/Database_Connection_Execution_Layer.md" "Details"
The orm library implements a layered architecture where the Model Definition Layer serves as the foundational schema, validated by the Data Validation & Type System. This schema is then translated into database-compatible constructs by the SQLAlchemy Core Integration. Application-level interactions occur through the Query Interface (QuerySet) for data retrieval and the Data Persistence Manager for data manipulation. Both these components rely on the Database Connection & Execution Layer to perform asynchronous operations against the database. This design ensures a clear separation of concerns, promoting maintainability, testability, and efficient asynchronous data management.
Model Definition Layer [Expand]
Defines the structure of database tables as Python objects, including fields, relationships, and metadata. It's the blueprint for all data interactions.
Related Classes/Methods:
orm.models.Model:487-596orm.models.build_table:514-521orm.models.table:523-525orm.models.metadataorm.fields.Field
Data Validation & Type System [Expand]
Ensures data integrity by validating input against defined model schemas and handling type conversions.
Related Classes/Methods:
SQLAlchemy Core Integration [Expand]
Acts as the bridge to SQLAlchemy Core, translating ORM-specific definitions and operations into low-level SQL expressions and managing SQLAlchemy constructs.
Related Classes/Methods:
Query Interface (QuerySet) [Expand]
Provides the high-level API for constructing and executing read-based database queries (e.g., filter, get, all).
Related Classes/Methods:
orm.models.QuerySet:104-484orm.models.filter:178-187orm.models.get:383-394orm.models.all:372-381orm.models.count:367-370orm.models.exists:342-345
Manages the lifecycle of data records, handling creation, updating, and deletion operations within the database.
Related Classes/Methods:
orm.models.create:415-425orm.models.update:527-539orm.models.delete:541-545orm.models.bulk_create:427-431orm.models.load:547-557orm.models.get_or_create:457-466orm.models.update_or_create:468-478
Database Connection & Execution Layer [Expand]
Handles direct, asynchronous interaction with the underlying database, managing connections and executing SQL commands.
Related Classes/Methods: