35 lines
1019 B
Ruby
35 lines
1019 B
Ruby
# frozen_string_literal: true
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class AddTimestampsToOptimizedImages < ActiveRecord::Migration[6.0]
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def change
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add_column :optimized_images, :created_at, :datetime, null: true
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add_column :optimized_images, :updated_at, :datetime, null: true
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# Start by stealing created/updated at from the uploads table
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# Not perfect, but a good approximation
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execute <<~SQL
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UPDATE optimized_images
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SET created_at = uploads.created_at,
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updated_at = uploads.created_at
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FROM uploads
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WHERE uploads.id = optimized_images.upload_id
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SQL
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# Integrity is not enforced, we might have optimized images
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# with no uploads
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execute <<~SQL
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UPDATE optimized_images
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SET created_at = NOW(),
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updated_at = NOW()
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WHERE created_at IS NULL
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SQL
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execute <<~SQL
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ALTER TABLE optimized_images ALTER COLUMN created_at SET NOT NULL;
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SQL
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execute <<~SQL
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ALTER TABLE optimized_images ALTER COLUMN updated_at SET NOT NULL;
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SQL
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end
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end
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