houdini/lib/delete/delete_custom_field_joins.rb
2019-08-02 19:07:29 +02:00

37 lines
1.7 KiB
Ruby

# frozen_string_literal: true
# License: AGPL-3.0-or-later WITH Web-Template-Output-Additional-Permission-3.0-or-later
module DeleteCustomFieldJoins
@columns = %w[id custom_field_master_id supporter_id value created_at updated_at metadata]
def self.find_multiple_custom_field_joins
bad_results = Qx.select("CONCAT(custom_field_joins.supporter_id, '_', custom_field_joins.custom_field_master_id) AS our_concat, COUNT(id) AS our_count")
.from(:custom_field_joins)
.group_by('our_concat')
.having('COUNT(id) > 1').parse
custom_field_joins_from_qx = CustomFieldJoin
.where("CONCAT(custom_field_joins.supporter_id, '_', custom_field_joins.custom_field_master_id) IN (SELECT our_concat FROM (#{bad_results}) AS ignore)")
.select('id, custom_field_master_id, supporter_id, created_at, updated_at')
grouped_custom_field_joins = custom_field_joins_from_qx.group_by { |tj| "#{tj.supporter_id}_#{tj.custom_field_master_id}" }
ids_to_delete = []
grouped_custom_field_joins.each do |_, v|
sorted = v.sort_by(&:updated_at).to_a
ids_to_delete += sorted.map(&:id)[0, sorted.count - 1]
end
ids_to_delete
end
def self.copy_and_delete(ids_to_delete)
if ids_to_delete.any?
Qx.insert_into(:custom_field_joins_backup, @columns).select(@columns).from(:custom_field_joins).where('id IN ($ids)', ids: ids_to_delete).execute
CustomFieldJoin.where('id IN (?)', ids_to_delete).delete_all
end
end
def self.revert
Qx.insert_into(:custom_field_joins, @columns).select(@columns).from(:custom_field_joins_backup).execute
Qx.execute_raw('DELETE FROM custom_field_joins_backup')
end
end