32 lines
873 B
Ruby
32 lines
873 B
Ruby
# frozen_string_literal: true
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class AddDiffTypeToMergeRequestDiffs < ActiveRecord::Migration[6.0]
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include Gitlab::Database::MigrationHelpers
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DOWNTIME = false
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disable_ddl_transaction!
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UNIQUE_INDEX_NAME = 'index_merge_request_diffs_on_unique_merge_request_id'
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def up
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unless column_exists?(:merge_request_diffs, :diff_type)
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with_lock_retries do
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add_column :merge_request_diffs, :diff_type, :integer, null: false, limit: 2, default: 1
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end
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end
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add_concurrent_index :merge_request_diffs, :merge_request_id, unique: true, where: 'diff_type = 2', name: UNIQUE_INDEX_NAME
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end
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def down
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remove_concurrent_index_by_name(:merge_request_diffs, UNIQUE_INDEX_NAME)
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if column_exists?(:merge_request_diffs, :diff_type)
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with_lock_retries do
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remove_column :merge_request_diffs, :diff_type
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end
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end
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end
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end
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