28 lines
1.1 KiB
Ruby
28 lines
1.1 KiB
Ruby
# This migration comes from active_storage (originally 20191206030411)
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class CreateActiveStorageVariantRecords < ActiveRecord::Migration[6.0]
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def change
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return unless table_exists?(:active_storage_blobs)
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# Use Active Record's configured type for primary key
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create_table :active_storage_variant_records, id: primary_key_type, if_not_exists: true do |t|
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t.belongs_to :blob, null: false, index: false, type: blobs_primary_key_type
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t.string :variation_digest, null: false
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t.index %i[ blob_id variation_digest ], name: "index_active_storage_variant_records_uniqueness", unique: true
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t.foreign_key :active_storage_blobs, column: :blob_id
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end
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end
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private
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def primary_key_type
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config = Rails.configuration.generators
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config.options[config.orm][:primary_key_type] || :primary_key
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end
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def blobs_primary_key_type
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pkey_name = connection.primary_key(:active_storage_blobs)
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pkey_column = connection.columns(:active_storage_blobs).find { |c| c.name == pkey_name }
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pkey_column.bigint? ? :bigint : pkey_column.type
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end
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end
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