dify/api/migrations/versions/b5429b71023c_messages_columns_set_nullable.py

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"""messages columns set nullable
Revision ID: b5429b71023c
Revises: 42e85ed5564d
Create Date: 2024-03-07 09:52:00.846136
"""
import sqlalchemy as sa
from alembic import op
# revision identifiers, used by Alembic.
revision = 'b5429b71023c'
down_revision = '42e85ed5564d'
branch_labels = None
depends_on = None
def upgrade():
# ### commands auto generated by Alembic - please adjust! ###
with op.batch_alter_table('messages', schema=None) as batch_op:
batch_op.alter_column('model_provider',
existing_type=sa.VARCHAR(length=255),
nullable=True)
batch_op.alter_column('model_id',
existing_type=sa.VARCHAR(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.alter_column('model_id',
existing_type=sa.VARCHAR(length=255),
nullable=False)
batch_op.alter_column('model_provider',
existing_type=sa.VARCHAR(length=255),
nullable=False)
# ### end Alembic commands ###