40 lines
1.2 KiB
Python
40 lines
1.2 KiB
Python
"""phase21 — template active flag
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Adds `active` boolean column to `inspection_templates` so templates can be
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deactivated without deletion. Inactive templates are hidden from the
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inspection-start form but remain accessible in the template management UI.
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Safe to re-run — uses INFORMATION_SCHEMA column existence check.
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"""
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import sqlalchemy as sa
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from alembic import op
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revision = 'phase21_template_active'
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down_revision = 'phase20_inspector_assignments'
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branch_labels = None
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depends_on = None
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def _column_exists(bind, table, column):
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result = bind.execute(sa.text(
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"SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS "
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"WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = :t AND COLUMN_NAME = :c"
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), {"t": table, "c": column})
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return result.scalar() > 0
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def upgrade():
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bind = op.get_bind()
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if not _column_exists(bind, 'inspection_templates', 'active'):
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op.add_column(
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'inspection_templates',
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sa.Column('active', sa.Boolean(), nullable=False, server_default=sa.true())
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)
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def downgrade():
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bind = op.get_bind()
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if _column_exists(bind, 'inspection_templates', 'active'):
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op.drop_column('inspection_templates', 'active')
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