22 lines
774 B
Ruby
22 lines
774 B
Ruby
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# frozen_string_literal: true
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class AddHierarchyRestrictions < Gitlab::Database::Migration[2.0]
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UNIQUE_INDEX_NAME = 'index_work_item_hierarchy_restrictions_on_parent_and_child'
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def up
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create_table :work_item_hierarchy_restrictions do |t|
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t.references :parent_type, index: true, null: false,
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foreign_key: { on_delete: :cascade, to_table: :work_item_types }
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t.references :child_type, index: true, null: false,
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foreign_key: { on_delete: :cascade, to_table: :work_item_types }
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t.integer :maximum_depth, limit: 2
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t.index [:parent_type_id, :child_type_id], unique: true, name: UNIQUE_INDEX_NAME
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end
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end
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def down
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drop_table :work_item_hierarchy_restrictions
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end
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end
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