Ryan Chen
f1a05a68a8
Check for existing columns/tables before adding to avoid duplicate column errors when production DB state is ahead of Alembic history. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
85 lines
3.4 KiB
Python
85 lines
3.4 KiB
Python
"""Add question ownership and sharing
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Revision ID: 9a119272b516
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Revises: d2113a61fa42
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Create Date: 2026-04-03 09:32:53.890510
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"""
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from alembic import op
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import sqlalchemy as sa
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from sqlalchemy.dialects import sqlite
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# revision identifiers, used by Alembic.
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revision = '9a119272b516'
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down_revision = 'd2113a61fa42'
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branch_labels = None
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depends_on = None
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def upgrade():
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# ### commands auto generated by Alembic - please adjust! ###
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conn = op.get_bind()
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# Create question_shares table if it doesn't exist
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tables = [row[0] for row in conn.execute(sa.text("SELECT name FROM sqlite_master WHERE type='table'"))]
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if 'question_shares' not in tables:
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op.create_table('question_shares',
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sa.Column('id', sa.Integer(), nullable=False),
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sa.Column('question_id', sa.Integer(), nullable=False),
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sa.Column('shared_with_user_id', sa.Integer(), nullable=False),
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sa.Column('shared_by_user_id', sa.Integer(), nullable=False),
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sa.Column('created_at', sa.DateTime(), nullable=True),
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sa.ForeignKeyConstraint(['question_id'], ['questions.id'], ),
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sa.ForeignKeyConstraint(['shared_by_user_id'], ['users.id'], ),
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sa.ForeignKeyConstraint(['shared_with_user_id'], ['users.id'], ),
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sa.PrimaryKeyConstraint('id'),
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sa.UniqueConstraint('question_id', 'shared_with_user_id', name='unique_question_share')
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)
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# Check existing columns to make migration idempotent
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game_columns = [row[1] for row in conn.execute(sa.text("PRAGMA table_info('games')"))]
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question_columns = [row[1] for row in conn.execute(sa.text("PRAGMA table_info('questions')"))]
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# Add new game columns if missing
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game_cols_to_add = []
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if 'completed_at' not in game_columns:
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game_cols_to_add.append(sa.Column('completed_at', sa.DateTime(), nullable=True))
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if 'winners' not in game_columns:
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game_cols_to_add.append(sa.Column('winners', sa.JSON(), nullable=True))
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if game_cols_to_add:
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with op.batch_alter_table('games', schema=None) as batch_op:
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for col in game_cols_to_add:
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batch_op.add_column(col)
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# Drop old game columns if they still exist
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game_cols_to_drop = [c for c in ['turn_order', 'is_steal_mode'] if c in game_columns]
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if game_cols_to_drop:
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with op.batch_alter_table('games', schema=None) as batch_op:
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for col_name in game_cols_to_drop:
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batch_op.drop_column(col_name)
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# Add created_by to questions if missing
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if 'created_by' not in question_columns:
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with op.batch_alter_table('questions', schema=None) as batch_op:
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batch_op.add_column(sa.Column('created_by', sa.Integer(), nullable=True))
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batch_op.create_foreign_key('fk_questions_created_by', 'users', ['created_by'], ['id'])
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# ### end Alembic commands ###
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def downgrade():
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# ### commands auto generated by Alembic - please adjust! ###
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with op.batch_alter_table('questions', schema=None) as batch_op:
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batch_op.drop_constraint('fk_questions_created_by', type_='foreignkey')
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batch_op.drop_column('created_by')
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with op.batch_alter_table('games', schema=None) as batch_op:
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batch_op.add_column(sa.Column('is_steal_mode', sa.BOOLEAN(), nullable=True))
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batch_op.add_column(sa.Column('turn_order', sqlite.JSON(), nullable=True))
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batch_op.drop_column('winners')
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batch_op.drop_column('completed_at')
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op.drop_table('question_shares')
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# ### end Alembic commands ###
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