fixed migrations

migrations/versions/c770e08966b4_add_email_templates_table.py

@@ -7,6 +7,7 @@ Create Date: 2025-06-01 20:09:08.019884
 """
 from alembic import op
 import sqlalchemy as sa
+from sqlalchemy import inspect
 from sqlalchemy.dialects import postgresql
 
 # revision identifiers, used by Alembic.
@@ -18,7 +19,12 @@ depends_on = None
 
 def upgrade():
     # ### commands auto generated by Alembic - please adjust! ###
-    op.create_table('email_templates',
+        conn = op.get_bind()
+    inspector = inspect(conn)
+    tables = inspector.get_table_names()
+    
+    if 'email_templates' not in tables:
+        op.create_table('email_templates',
     sa.Column('id', sa.Integer(), nullable=False),
     sa.Column('name', sa.String(length=100), nullable=False),
     sa.Column('subject', sa.String(length=200), nullable=False),
@@ -54,7 +60,12 @@ def downgrade():
                type_=postgresql.JSONB(astext_type=sa.Text()),
                existing_nullable=True)
 
-    op.create_table('notification',
+        conn = op.get_bind()
+    inspector = inspect(conn)
+    tables = inspector.get_table_names()
+    
+    if 'notification' not in tables:
+        op.create_table('notification',
     sa.Column('id', sa.INTEGER(), autoincrement=True, nullable=False),
     sa.Column('user_id', sa.INTEGER(), autoincrement=False, nullable=False),
     sa.Column('title', sa.VARCHAR(length=255), autoincrement=False, nullable=False),