Sha256: de82ae76e84b03de59255c3689fc2e5538b257de9737bd0849a64c21a81baf60
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Size: 1.83 KB
Versions: 3
Compression:
Stored size: 1.83 KB
Contents
# encoding: utf-8 module Dynamoid #:nodoc: # The belongs_to association. For belongs_to, we reference only a single target instead of multiple records; that target is the # object to which the association object is associated. module Associations class BelongsTo include SingleAssociation def declaration_field_name options[:foreign_key] || "#{name}_ids" end def declaration_field_type if options[:foreign_key] target_class.attributes[target_class.hash_key][:type] else :set end end # Override default implementation # to handle case when we store id as scalar value, not as collection def associate(hash_key) target.send(target_association).disassociate(source.hash_key) if target && target_association if options[:foreign_key] source.update_attribute(source_attribute, hash_key) else source.update_attribute(source_attribute, Set[hash_key]) end end private # Find the target association, either has_many or has_one. Uses either options[:inverse_of] or the source class name and default parsing to # return the most likely name for the target association. # # @since 0.2.0 def target_association has_many_key_name = options[:inverse_of] || source.class.to_s.underscore.pluralize.to_sym has_one_key_name = options[:inverse_of] || source.class.to_s.underscore.to_sym if !target_class.associations[has_many_key_name].nil? return has_many_key_name if target_class.associations[has_many_key_name][:type] == :has_many end if !target_class.associations[has_one_key_name].nil? return has_one_key_name if target_class.associations[has_one_key_name][:type] == :has_one end end end end end
Version data entries
3 entries across 3 versions & 1 rubygems
Version | Path |
---|---|
dynamoid-2.2.0 | lib/dynamoid/associations/belongs_to.rb |
dynamoid-2.1.0 | lib/dynamoid/associations/belongs_to.rb |
dynamoid-2.0.0 | lib/dynamoid/associations/belongs_to.rb |