class Map < ActiveRecord::Base belongs_to :user has_many :topicmappings, :class_name => 'Mapping', :conditions => {:category => 'Topic'} has_many :synapsemappings, :class_name => 'Mapping', :conditions => {:category => 'Synapse'} has_many :topics, :through => :topicmappings has_many :synapses, :through => :synapsemappings # This method associates the attribute ":image" with a file attachment has_attached_file :screenshot, :styles => { :thumb => ['188x126#', :png], :full => ['1880x1260#', :png] } # Validate the attached image is image/jpg, image/png, etc validates_attachment_content_type :screenshot, :content_type => /\Aimage\/.*\Z/ def mappings topicmappings + synapsemappings end def mk_permission if self.permission == "commons" "co" elsif self.permission == "public" "pu" elsif self.permission == "private" "pr" end end #return an array of the contributors to the map def contributors contributors = [] self.mappings.each do |m| contributors.push(m.user) if !contributors.include?(m.user) end return contributors end def topic_count self.topics.length end def synapse_count self.synapses.length end def user_name self.user.name end def user_image self.user.image.url end def contributor_count self.contributors.length end def as_json(options={}) super(:methods =>[:user_name, :user_image, :topic_count, :synapse_count, :contributor_count]) 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 # 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