The essential element I'm missing (I think), is some sort of hook to help me iterate through all of my model's to_one relationships.
My model has lots of them, but for a given object only 1 matters. So "att_value" is supposed to represent whichever one it is that matters. (and the one that matters is determined by another attribute called class_name)
class PageAttribute < ActiveRecord::Base
belongs_to :page
has_one :boolean_page_attribute, :class_name => 'BooleanPageAttribute', :dependent => :destroy has_one :date_page_attribute, :class_name => 'DatePageAttribute', :dependent => :destroy has_one :string_page_attribute, :class_name => 'StringPageAttribute', :dependent => :destroy has_one :page_link_page_attribute, :class_name => 'PageLinkPageAttribute', :dependent => :destroy has_one :uploaded_file_page_attribute, :class_name => 'UploadedFilePageAttribute', :dependent => :destroy
def att_value if(self.class_name.to_s == 'BooleanPageAttribute') return self.boolean_page_attribute end if(self.class_name.to_s == 'DatePageAttribute') return self.date_page_attribute end if(self.class_name.to_s == 'StringPageAttribute') logger.debug "returning string_page_attribute" + string_page_attribute.to_s return self.string_page_attribute end if(self.class_name.to_s == 'PageLinkPageAttribute') return self.page_link_page_attribute end if(self.class_name.to_s == 'UploadedFilePageAttribute') return self.uploaded_file_page_attribute end end
def att_value=(val) if(self.class_name.to_s == 'BooleanPageAttribute') if val.is_a? Hash self.boolean_page_attribute.attributes = val else self.boolean_page_attribute = val end end if(self.class_name.to_s == 'DatePageAttribute') if val.is_a? Hash self.date_page_attribute.attributes = val else self.date_page_attribute = val end end if(self.class_name.to_s == 'StringPageAttribute') if val.is_a? Hash self.string_page_attribute.attributes = val else self.string_page_attribute = val end end if(self.class_name.to_s == 'PageLinkPageAttribute') if val.is_a? Hash self.page_link_page_attribute.attributes = val else self.page_link_page_attribute = val end end if(self.class_name.to_s == 'UploadedFilePageAttribute') if val.is_a? Hash self.uploaded_file_page_attribute.attributes = val else self.uploaded_file_page_attribute = val end end end
...etc...
end
thanks, Jacob
