flask_crud_app/definitions/models.py

from flask_sqlalchemy import SQLAlchemy
from config import item_attributes  # Import the configuration
from sqlalchemy import Enum, Integer, String, Date, Column
from config import sql_conf

db = SQLAlchemy()

# Dynamically create the Asset model
def create_asset_model():
    """
    Dynamically creates the Asset model based on the configuration in item_attributes.
    """
    attrs = {
        '__tablename__': sql_conf.SQL_TABLE,  # Table name
        '__init__': lambda self, **kwargs: self.__dict__.update(kwargs),  # Constructor
        '__repr__': lambda self: f"<Asset {getattr(self, next(attrib for attrib, config in item_attributes.items() if config.primary))}>"  # Representation
    }

    for attrib, config in item_attributes.items():
        # Determine the column type based on the configuration
        if config.html_input_type == "text":
            column_type = String(50)
        elif config.html_input_type == "date":
            column_type = Date
        elif config.html_input_type == "select":
            column_type = Enum(*config.options)
        elif config.html_input_type == "number":
            column_type = Integer

        # Define the column with additional properties
        attrs[attrib] = Column(
            column_type,
            primary_key=config.primary,
            unique=config.unique,
            nullable=not config.required,
            default=config.default_val,
            comment=config.comment
        )

    # Create the Asset class dynamically
    Asset = type('Asset', (db.Model,), attrs)
    return Asset

# Create the Asset model
Asset = create_asset_model()