36 lines
1.2 KiB
Python
36 lines
1.2 KiB
Python
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"""Rattacher les tâches administratives à un technicien."""
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from alembic import op
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import sqlalchemy as sa
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revision = "g2b3c4d5e6f7"
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down_revision = "g1a2b3c4d5e6"
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branch_labels = None
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depends_on = None
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def _columns(bind):
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return {item["name"] for item in sa.inspect(bind).get_columns("admin_tasks")}
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def upgrade():
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bind = op.get_bind()
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if "user_id" not in _columns(bind):
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op.add_column("admin_tasks", sa.Column("user_id", sa.Integer(), nullable=True))
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op.create_index("ix_admin_tasks_user_id", "admin_tasks", ["user_id"])
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op.create_foreign_key(
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"fk_admin_tasks_user_id_users", "admin_tasks", "users", ["user_id"], ["id"]
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)
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def downgrade():
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bind = op.get_bind()
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if "user_id" in _columns(bind):
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inspector = sa.inspect(bind)
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if "ix_admin_tasks_user_id" in {item["name"] for item in inspector.get_indexes("admin_tasks")}:
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op.drop_index("ix_admin_tasks_user_id", table_name="admin_tasks")
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if "fk_admin_tasks_user_id_users" in {item["name"] for item in inspector.get_foreign_keys("admin_tasks")}:
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op.drop_constraint("fk_admin_tasks_user_id_users", "admin_tasks", type_="foreignkey")
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op.drop_column("admin_tasks", "user_id")
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