class ActiveRecord::Associations::Preloader::Association
Public Instance Methods
owners_by_key()
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# File lib/composite_primary_keys/associations/preloader/association.rb, line 35 def owners_by_key @owners_by_key ||= owners.each_with_object({}) do |owner, result| # CPK # key = convert_key(owner[owner_key_name]) key = if owner_key_name.is_a?(Array) Array(owner_key_name).map do |key_name| convert_key(owner[key_name]) end else convert_key(owner[owner_key_name]) end (result[key] ||= []) << owner if key end end
records_for(ids)
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TODO: is records_for
needed anymore? Rails’ implementation has changed significantly
# File lib/composite_primary_keys/associations/preloader/association.rb, line 19 def records_for(ids) records = if association_key_name.is_a?(Array) predicate = cpk_in_predicate(klass.arel_table, association_key_name, ids) scope.where(predicate) else scope.where(association_key_name => ids) end records.load do |record| # Processing only the first owner # because the record is modified but not an owner owner = owners_by_key[convert_key(record[association_key_name])].first association = owner.association(reflection.name) association.set_inverse_instance(record) end end