fix(database): upgrade error in pg database

Co-Authored-By: Aqr-K <95741669+Aqr-K@users.noreply.github.com>

database/versions/4666ce24a443_2_1_8.py

@@ -18,19 +18,18 @@ depends_on = None
 
 
 def upgrade() -> None:
-    # ### commands auto generated by Alembic - please adjust! ###
-    with contextlib.suppress(Exception):
-        # 添加触发类型字段
+    conn = op.get_bind()
+    inspector = sa.inspect(conn)
+    columns = inspector.get_columns('workflow')
+
+    if not any(c['name'] == 'trigger_type' for c in columns):
         op.add_column('workflow', sa.Column('trigger_type', sa.String(), nullable=True, default='timer'))
 
-    with contextlib.suppress(Exception):
-        # 添加事件类型字段
+    if not any(c['name'] == 'event_type' for c in columns):
         op.add_column('workflow', sa.Column('event_type', sa.String(), nullable=True))
 
-    with contextlib.suppress(Exception):
-        # 添加事件条件字段
+    if not any(c['name'] == 'event_conditions' for c in columns):
         op.add_column('workflow', sa.Column('event_conditions', sa.JSON(), nullable=True, default={}))
-    # ### end Alembic commands ###
 
 
 def downgrade() -> None: