admin frontend elkezdése, járművek tisztázása, frontend fejleszts

backend/scripts/check_constraint.py

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+"""Check and create the CheckConstraint for vehicle.assets table."""
+from app.database import engine_sync
+from sqlalchemy import text
+
+with engine_sync.connect() as conn:
+    # Check if constraint exists
+    result = conn.execute(
+        text("""
+            SELECT conname, pg_get_constraintdef(oid) 
+            FROM pg_constraint 
+            WHERE conrelid = 'vehicle.assets'::regclass 
+              AND contype = 'c'
+        """)
+    ).fetchall()
+    print('Constraints on vehicle.assets:')
+    for row in result:
+        print(f'  {row[0]}: {row[1]}')
+    
+    if not result:
+        print('No CheckConstraint found - creating it now...')
+        conn.execute(
+            text("""
+                ALTER TABLE vehicle.assets 
+                ADD CONSTRAINT ck_asset_vin_or_plate_required 
+                CHECK (vin IS NOT NULL OR license_plate IS NOT NULL)
+            """)
+        )
+        conn.commit()
+        print('CheckConstraint created successfully!')
+    else:
+        print('CheckConstraint already exists.')