47 lines
1.5 KiB
Python
47 lines
1.5 KiB
Python
"""phase19 — add mobile_photo_paths column to issues table
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Background
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----------
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Issues created on the iPad can have multiple evidence photos. The first photo
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is stored in `photo_path` (existing single-string column). Additional photos
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were previously stored in `result_photos` (intended for resolution photos),
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causing them to appear under "Resolution Details" on the web instead of
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"Photo Evidence".
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This migration adds `mobile_photo_paths JSON NULL` to store the extra
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evidence photos from the iPad separately from resolution photos.
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Safe to re-run — uses INFORMATION_SCHEMA 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 = 'phase19_issue_mobile_photos'
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down_revision = 'phase18_issue_reported_by'
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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() "
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"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, 'issues', 'mobile_photo_paths'):
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op.add_column('issues', sa.Column(
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'mobile_photo_paths', sa.JSON(), nullable=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, 'issues', 'mobile_photo_paths'):
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op.execute(sa.text("ALTER TABLE issues DROP COLUMN mobile_photo_paths"))
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