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Returns the absolute file path to the default database schema JSON file (database_schema_20251003_120434.json) located in the same directory as the function.

Purpose

This function provides a centralized way to retrieve the path to the comprehensive database schema file. It's used to ensure consistent access to the schema definition across the application, eliminating hardcoded paths and making the codebase more maintainable. The schema file likely contains table definitions, column metadata, relationships, and other database structure information used for query generation or validation.

Source Code

def get_default_schema_file() -> str:
    """Get default database schema file path - using comprehensive schema"""
    import os
    return os.path.join(os.path.dirname(__file__), 'database_schema_20251003_120434.json')

Return Value

Type: str

Returns a string containing the absolute file path to 'database_schema_20251003_120434.json'. The path is constructed by joining the directory of the current file (__file__) with the schema filename. Example return value: '/path/to/module/database_schema_20251003_120434.json'

Dependencies

• os

Required Imports

import os

Usage Example

# Get the default schema file path
schema_path = get_default_schema_file()
print(f"Schema file located at: {schema_path}")

# Typical usage: Load the schema
import json
schema_path = get_default_schema_file()
with open(schema_path, 'r') as f:
    schema = json.load(f)
print(f"Loaded schema with {len(schema)} tables")

Best Practices

• Always check if the returned file path exists before attempting to open it using os.path.exists()
• Consider caching the result if this function is called frequently to avoid repeated path resolution
• Handle FileNotFoundError when opening the schema file in case it's missing or moved
• The schema filename includes a timestamp (20251003_120434), suggesting versioning - be aware that updates to the schema may require code changes
• This function uses lazy import of 'os' inside the function body, which is unusual but allows the function to be defined even if os is not available at module load time

Tags

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