23 lines
858 B
Ruby
23 lines
858 B
Ruby
# frozen_string_literal: true
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class AddJoinTableForSelfManagedPrometheusAlertIssues < ActiveRecord::Migration[5.2]
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# Set this constant to true if this migration requires downtime.
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DOWNTIME = false
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def change
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# Join table to Issues
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create_table :issues_self_managed_prometheus_alert_events, id: false do |t|
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t.references :issue, null: false,
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index: false, # Uses the index below
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foreign_key: { on_delete: :cascade }
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t.references :self_managed_prometheus_alert_event, null: false,
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index: { name: 'issue_id_issues_self_managed_rometheus_alert_events_index' },
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foreign_key: { on_delete: :cascade }
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t.timestamps_with_timezone
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t.index [:issue_id, :self_managed_prometheus_alert_event_id],
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unique: true, name: 'issue_id_self_managed_prometheus_alert_event_id_index'
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end
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end
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end
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