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16 lines
379 B
Ruby
16 lines
379 B
Ruby
# frozen_string_literal: true
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class AddUniqueIndexToInvitedGroups < ActiveRecord::Migration[6.0]
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def change
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execute <<~SQL
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DELETE FROM invited_groups a
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USING invited_groups b
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WHERE a.id < b.id
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AND a.invite_id = b.invite_id
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AND a.group_id = b.group_id
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SQL
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add_index :invited_groups, %i[group_id invite_id], unique: true
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end
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end
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