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# See http://doc.gitlab.com/ce/development/migration_style_guide.html
# for more information on how to write migrations for GitLab.
class EnsureForeignKeysOnClustersApplications < ActiveRecord::Migration
include Gitlab::Database::MigrationHelpers
DOWNTIME = false
disable_ddl_transaction!
def up
existing = Clusters::Cluster
.joins(:application_ingress)
.where('clusters.id = clusters_applications_ingress.cluster_id')
Clusters::Applications::Ingress.where('NOT EXISTS (?)', existing).in_batches do |batch|
batch.delete_all
end
unless foreign_keys_for(:clusters_applications_ingress, :cluster_id).any?
add_concurrent_foreign_key :clusters_applications_ingress, :clusters,
column: :cluster_id,
on_delete: :cascade
end
existing = Clusters::Cluster
.joins(:application_prometheus)
.where('clusters.id = clusters_applications_prometheus.cluster_id')
Clusters::Applications::Ingress.where('NOT EXISTS (?)', existing).in_batches do |batch|
batch.delete_all
end
unless foreign_keys_for(:clusters_applications_prometheus, :cluster_id).any?
add_concurrent_foreign_key :clusters_applications_prometheus, :clusters,
column: :cluster_id,
on_delete: :cascade
end
end
def down
if foreign_keys_for(:clusters_applications_ingress, :cluster_id).any?
remove_foreign_key :clusters_applications_ingress, column: :cluster_id
end
if foreign_keys_for(:clusters_applications_prometheus, :cluster_id).any?
remove_foreign_key :clusters_applications_prometheus, column: :cluster_id
end
end
end
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