remove MetaDataTable and MetaDataColumn to cleanup schema

kontor-scripts/export.py

@@ -12,7 +12,6 @@ from pathlib import Path
 from db.models import registry
 from db.models.base import Base
 from config import get_logger
-from db.repository.metadata import get_tables, get_columns_for_table
 
 parser = ArgumentParser(formatter_class=ArgumentDefaultsHelpFormatter)
 parser.add_argument('--verbose', '-v', action='count', default=0)
@@ -40,31 +39,23 @@ if __name__ == '__main__':
     __session__ = sessionmaker(bind=engine)
     with __session__() as db:
         data = {}
-        tables = get_tables(db)
+        tables = registry.keys()
         for table in tables:
             # logger.info(f"Table {table.name} with {table.id}")
-            columns = get_columns_for_table(db, table)
-            model = registry[table.name]
+            model = registry[table]
             rows = db.query(model).all()
             entries = []
             for row in rows:
-                entry = {}
-                for column in columns:
-                    # logger.info(f"    Column {column.order} {column.name} with {column.id}")
-                    try:
-                        value = getattr(row, column.name)
-                        if isinstance(value, datetime):
-                            entry[column.name] = str(value)
-                        else:
-                            entry[column.name] = value
-                    except AttributeError as error:
-                        logger.info(f"{error}")
+                entry = row.export_dict()
                 entries.append(entry)
-            data[table.name] = entries
-            logger.info(f"{table.name}: {len(entries)} exported")
-        json_dump = json.dumps(data, indent=4)
-        with open(args.file, "w") as dump_file:
-            dump_file.write(json_dump)
+            data[table] = entries
+            logger.info(f"{table}: {len(entries)} exported")
+        try:
+            json_dump = json.dumps(data, indent=4)
+            with open(args.file, "w") as dump_file:
+                dump_file.write(json_dump)
+        except TypeError as error:
+            logger.info(f"{error}")
         logger.info(f"{len(data)} tables exported")
     #kontor_db = KontorDB(engine, logger)
     #kontor_db.export_db(ExportType.JSON, args.file)