Fix/ignore economy dataset (#1043)

Co-authored-by: jyong <jyong@dify.ai>

api/migrations/versions/4bcffcd64aa4_update_dataset_model_field_null_.py

@@ -0,0 +1,46 @@
+"""update_dataset_model_field_null_available
+
+Revision ID: 4bcffcd64aa4
+Revises: 853f9b9cd3b6
+Create Date: 2023-08-28 20:58:50.077056
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '4bcffcd64aa4'
+down_revision = '853f9b9cd3b6'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    with op.batch_alter_table('datasets', schema=None) as batch_op:
+        batch_op.alter_column('embedding_model',
+               existing_type=sa.VARCHAR(length=255),
+               nullable=True,
+               existing_server_default=sa.text("'text-embedding-ada-002'::character varying"))
+        batch_op.alter_column('embedding_model_provider',
+               existing_type=sa.VARCHAR(length=255),
+               nullable=True,
+               existing_server_default=sa.text("'openai'::character varying"))
+
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    with op.batch_alter_table('datasets', schema=None) as batch_op:
+        batch_op.alter_column('embedding_model_provider',
+               existing_type=sa.VARCHAR(length=255),
+               nullable=False,
+               existing_server_default=sa.text("'openai'::character varying"))
+        batch_op.alter_column('embedding_model',
+               existing_type=sa.VARCHAR(length=255),
+               nullable=False,
+               existing_server_default=sa.text("'text-embedding-ada-002'::character varying"))
+
+    # ### end Alembic commands ###