fixed migrations

migrations/versions/c21f243b3640_add_profile_picture_to_user.py

@@ -8,6 +8,7 @@ Create Date: 2025-05-23 19:28:16.977187
 from alembic import op
 import sqlalchemy as sa
 from sqlalchemy.dialects import postgresql
+from sqlalchemy import inspect
 
 # revision identifiers, used by Alembic.
 revision = 'c21f243b3640'
@@ -19,8 +20,13 @@ depends_on = None
 def upgrade():
     # ### commands auto generated by Alembic - please adjust! ###
     op.drop_table('contact')
+    conn = op.get_bind()
+    inspector = inspect(conn)
+    columns = [col['name'] for col in inspector.get_columns('user')]
+    
     with op.batch_alter_table('user', schema=None) as batch_op:
-        batch_op.add_column(sa.Column('profile_picture', sa.String(length=255), nullable=True))
+        if 'profile_picture' not in columns:
+            batch_op.add_column(sa.Column('profile_picture', sa.String(length=255), nullable=True))
 
     # ### end Alembic commands ###