FEAT: NEW WORKFLOW ENGINE (#3160)

Co-authored-by: Joel <iamjoel007@gmail.com>
Co-authored-by: Yeuoly <admin@srmxy.cn>
Co-authored-by: JzoNg <jzongcode@gmail.com>
Co-authored-by: StyleZhang <jasonapring2015@outlook.com>
Co-authored-by: jyong <jyong@dify.ai>
Co-authored-by: nite-knite <nkCoding@gmail.com>
Co-authored-by: jyong <718720800@qq.com>

api/migrations/versions/e2eacc9a1b63_add_status_for_message.py

@@ -0,0 +1,43 @@
+"""add status for message
+
+Revision ID: e2eacc9a1b63
+Revises: 563cf8bf777b
+Create Date: 2024-03-21 09:31:27.342221
+
+"""
+import sqlalchemy as sa
+from alembic import op
+
+# revision identifiers, used by Alembic.
+revision = 'e2eacc9a1b63'
+down_revision = '563cf8bf777b'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    with op.batch_alter_table('conversations', schema=None) as batch_op:
+        batch_op.add_column(sa.Column('invoke_from', sa.String(length=255), nullable=True))
+
+    with op.batch_alter_table('messages', schema=None) as batch_op:
+        batch_op.add_column(sa.Column('status', sa.String(length=255), server_default=sa.text("'normal'::character varying"), nullable=False))
+        batch_op.add_column(sa.Column('error', sa.Text(), nullable=True))
+        batch_op.add_column(sa.Column('message_metadata', sa.Text(), nullable=True))
+        batch_op.add_column(sa.Column('invoke_from', sa.String(length=255), nullable=True))
+
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    with op.batch_alter_table('messages', schema=None) as batch_op:
+        batch_op.drop_column('invoke_from')
+        batch_op.drop_column('message_metadata')
+        batch_op.drop_column('error')
+        batch_op.drop_column('status')
+
+    with op.batch_alter_table('conversations', schema=None) as batch_op:
+        batch_op.drop_column('invoke_from')
+
+    # ### end Alembic commands ###