Merge db-migrations: Add Flask-Migrate support and clean up old migration system

clean_migration_state.py

@@ -0,0 +1,96 @@
+#!/usr/bin/env python
+"""Clean migration state and handle orphaned tables"""
+
+from app import app, db
+from sqlalchemy import text
+
+def get_all_tables():
+    """Get all tables in the database"""
+    with app.app_context():
+        result = db.session.execute(text(
+            "SELECT table_name FROM information_schema.tables "
+            "WHERE table_schema = 'public' AND table_type = 'BASE TABLE'"
+        ))
+        return [row[0] for row in result]
+
+def check_migration_state():
+    """Check current migration state"""
+    with app.app_context():
+        try:
+            result = db.session.execute(text("SELECT version_num FROM alembic_version"))
+            row = result.fetchone()
+            if row:
+                print(f"Current migration version: {row[0]}")
+                return row[0]
+        except:
+            print("No alembic_version table found")
+        return None
+
+def clean_migration_only():
+    """Clean only the migration state, keep all other tables"""
+    with app.app_context():
+        try:
+            print("Cleaning migration state only...")
+            db.session.execute(text("DELETE FROM alembic_version"))
+            db.session.commit()
+            print("Migration state cleaned successfully!")
+            return True
+        except Exception as e:
+            print(f"Error: {e}")
+            db.session.rollback()
+            return False
+
+def list_orphaned_tables():
+    """List tables that exist in DB but not in models"""
+    with app.app_context():
+        all_tables = get_all_tables()
+        
+        # Get tables from current models
+        model_tables = set()
+        for table in db.metadata.tables.values():
+            model_tables.add(table.name)
+        
+        # Find orphaned tables
+        orphaned = []
+        for table in all_tables:
+            if table not in model_tables and table != 'alembic_version':
+                orphaned.append(table)
+        
+        return orphaned
+
+if __name__ == '__main__':
+    print("=== Migration State Check ===")
+    
+    # Check current state
+    version = check_migration_state()
+    
+    # List all tables
+    print("\n=== Database Tables ===")
+    tables = get_all_tables()
+    for table in sorted(tables):
+        print(f"  - {table}")
+    
+    # Check for orphaned tables
+    orphaned = list_orphaned_tables()
+    if orphaned:
+        print("\n=== Orphaned Tables (not in current models) ===")
+        for table in sorted(orphaned):
+            print(f"  - {table}")
+        print("\nThese tables exist in the database but are not defined in your current models.")
+        print("They might be from old features or previous schema versions.")
+    
+    if version:
+        print(f"\n=== Action Required ===")
+        print(f"The database has migration '{version}' but no migration files exist.")
+        print("\nOptions:")
+        print("1. Clean migration state only (keeps all tables)")
+        print("2. Cancel and handle manually")
+        
+        choice = input("\nEnter your choice (1 or 2): ")
+        
+        if choice == '1':
+            if clean_migration_only():
+                print("\n✓ Migration state cleaned!")
+                print("You can now run: python create_migration.py")
+        else:
+            print("\nCancelled. No changes made.")