ahvn.utils.db.compiler module

SQL Compiler for KLOp JSON IR.

This module provides functionality to compile KLOp JSON IR expressions into SQLAlchemy query expressions for database backends.

class ahvn.utils.db.compiler.SQLCompiler

基类：object

Compiler that converts KLOp JSON IR to SQLAlchemy expressions.

static compile(orms, expr=None, **kwargs)

Convert a KLOp JSON IR to SQLAlchemy query expressions.

参数:

• orms (Dict[str, Any]) -- Mapping of entity names to SQLAlchemy model classes

• expr (Optional[Dict[str, Any]]) -- The parsed filter expression dictionary (optional)

• **kwargs -- Filter conditions as key-value pairs

返回类型:

ClauseElement

返回:

SQLAlchemy expression object or None

抛出:

ValueError -- If filter structure is invalid