21 lines
686 B
JavaScript
21 lines
686 B
JavaScript
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// Allows an asset to declare that it is a processed derivative of another asset.
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// Example lineage: raw .mov → chroma-keyed .mp4 (parent_id → raw asset)
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// A raw asset has parent_id = NULL.
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// Multiple processed versions can share the same parent_id.
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exports.up = (pgm) => {
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pgm.addColumn('shared_assets', {
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parent_id: {
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type: 'integer',
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references: 'shared_assets',
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onDelete: 'SET NULL',
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},
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});
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pgm.createIndex('shared_assets', 'parent_id', { name: 'idx_shared_assets_parent' });
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};
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exports.down = (pgm) => {
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pgm.dropIndex('shared_assets', 'parent_id', { name: 'idx_shared_assets_parent' });
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pgm.dropColumn('shared_assets', 'parent_id');
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};
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