module OldApiResource::Associations::ClassMethods
Public Instance Methods
association?(assoc)
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# File lib/old_api_resource/associations.rb, line 87 def association?(assoc) self.related_objects.any? do |key, value| next if key.to_s == "scope" value.detect { |k,v| k.to_sym == assoc.to_sym } end end
association_class_name(assoc)
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# File lib/old_api_resource/associations.rb, line 94 def association_class_name(assoc) raise ArgumentError, "#{assoc} is not a valid association of #{self}" unless self.association?(assoc) result = self.related_objects.detect do |key,value| ret = value.detect{|k,v| k.to_sym == assoc.to_sym } return self.find_namespaced_class_name(ret[1]) if ret end end
clear_associations()
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# File lib/old_api_resource/associations.rb, line 102 def clear_associations self.related_objects.each do |_, val| val.clear end end
scope(name, hsh)
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# File lib/old_api_resource/associations.rb, line 67 def scope(name, hsh) raise ArgumentError, "Expecting an attributes hash given #{hsh.inspect}" unless hsh.is_a?(Hash) self.related_objects[:scope][name.to_sym] = hsh # we also need to define a class method for each scope self.instance_eval <<-EOE, __FILE__, __LINE__ + 1 def #{name}(opts = {}) return OldApiResource::Associations::ResourceScope.new(self, :#{name}, opts) end EOE end
scope?(name)
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# File lib/old_api_resource/associations.rb, line 78 def scope?(name) self.related_objects[:scope][name.to_sym].present? end
scope_attributes(name)
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# File lib/old_api_resource/associations.rb, line 82 def scope_attributes(name) raise "No such scope #{name}" unless self.scope?(name) self.related_objects[:scope][name.to_sym] end
scopes()
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# File lib/old_api_resource/associations.rb, line 63 def scopes return self.related_objects[:scope] end
Protected Instance Methods
define_association_as_attribute(assoc_type, assoc_name)
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# File lib/old_api_resource/associations.rb, line 109 def define_association_as_attribute(assoc_type, assoc_name) define_attributes assoc_name case assoc_type.to_sym when :has_many self.class_eval <<-EOE, __FILE__, __LINE__ + 1 def #{assoc_name} self.attributes[:#{assoc_name}] ||= MultiObjectProxy.new(self.association_class_name('#{assoc_name}'), nil) end EOE else self.class_eval <<-EOE, __FILE__, __LINE__ + 1 def #{assoc_name} self.attributes[:#{assoc_name}] ||= SingleObjectProxy.new(self.association_class_name('#{assoc_name}'), nil) end EOE end # Always define the setter the same self.class_eval <<-EOE, __FILE__, __LINE__ + 1 def #{assoc_name}=(val) #{assoc_name}_will_change! unless self.#{assoc_name}.internal_object == val self.#{assoc_name}.internal_object = val end EOE end
find_namespaced_class_name(klass)
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# File lib/old_api_resource/associations.rb, line 134 def find_namespaced_class_name(klass) # return the name if it is itself namespaced return klass if klass =~ /::/ ancestors = self.name.split("::") if ancestors.size > 1 receiver = Object namespaces = ancestors[0..-2].collect do |mod| receiver = receiver.const_get(mod) end if namespace = namespaces.reverse.detect{|ns| ns.const_defined?(klass, false)} return namespace.const_get(klass).name end end return klass end