Contents

module ActiveRecordSurvey
	class Survey < ::ActiveRecord::Base
		self.table_name = "active_record_surveys"
		has_many :node_maps, :class_name => "ActiveRecordSurvey::NodeMap", :foreign_key => :active_record_survey_id, autosave: true
		has_many :nodes, -> { distinct }, :through => :node_maps
		has_many :questions, :class_name => "ActiveRecordSurvey::Node::Question", :foreign_key => :active_record_survey_id

		def root_node
			self.node_maps.includes(:node).select { |i| i.depth === 0 }.first
		end

		# Builds first question
		def build_first_question(question_node)
			if !question_node.class.ancestors.include?(::ActiveRecordSurvey::Node::Question)
				raise ArgumentError.new "must inherit from ::ActiveRecordSurvey::Node::Question"
			end

			question_node_maps = self.node_maps.select { |i| i.node == question_node && !i.marked_for_destruction? }

			# No node_maps exist yet from this question
			if question_node_maps.length === 0
				# Build our first node-map
				question_node_maps << self.node_maps.build(:node => question_node, :survey => self)
			end
		end

		# All the connective edges
		def edges
			self.node_maps.select { |i| !i.marked_for_destruction? }.select { |i|
				i.node && i.parent
			}.collect { |i|
				{
					:source => i.parent.node.id,
					:target => i.node.id,
				}
			}.uniq
		end

		def as_map(*args)
			options = args.extract_options!
			options[:node_maps] ||= self.node_maps

			self.node_maps.select { |i| !i.parent && !i.marked_for_destruction? }.collect { |i|
				i.as_map(options)
			}
		end
	end
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
active_record_survey-0.1.42	lib/active_record_survey/survey.rb