class Synapse < ActiveRecord::Base belongs_to :user belongs_to :topic1, :class_name => "Topic", :foreign_key => "node1_id" belongs_to :topic2, :class_name => "Topic", :foreign_key => "node2_id" has_many :mappings has_many :maps, :through => :mappings def user_name self.user.name end def user_image self.user.image.url end def as_json(options={}) super(:methods =>[:user_name, :user_image]) end ##### PERMISSIONS ###### # returns false if user not allowed to 'show' Topic, Synapse, or Map def authorize_to_show(user) if (self.permission == "private" && self.user != user) return false end return self end # returns false if user not allowed to 'edit' Topic, Synapse, or Map def authorize_to_edit(user) if (self.permission == "private" && self.user != user) return false elsif (self.permission == "public" && self.user != user) return false end return self end def authorize_to_delete(user) if (self.user != user) return false end return self end # returns Boolean if user allowed to view Topic, Synapse, or Map def authorize_to_view(user) if (self.permission == "private" && self.user != user) return false end return true end end