0fc9f9d3e7
DB schema generated by a migration may look different in rails 4 and 5 (because rails 5 may use different default values). For this reason it's important to explicitly set for which rails version a migration was written for. See https://stackoverflow.com/questions/35929869/activerecordmigration-deprecation-warning-asks-for-rails-version-but-im-no/35930912#35930912
17 lines
482 B
Ruby
17 lines
482 B
Ruby
# frozen_string_literal: true
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class CreateClusterGroups < ActiveRecord::Migration[4.2]
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include Gitlab::Database::MigrationHelpers
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DOWNTIME = false
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def change
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create_table :cluster_groups do |t|
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t.references :cluster, null: false, foreign_key: { on_delete: :cascade }
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t.references :group, null: false, index: true
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t.index [:cluster_id, :group_id], unique: true
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t.foreign_key :namespaces, column: :group_id, on_delete: :cascade
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end
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end
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end
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