Class: ActiveRecordSurvey::Node::Question

Inherits:
ActiveRecordSurvey::Node show all
Defined in:
lib/active_record_survey/node/question.rb

Instance Method Summary collapse

Methods inherited from ActiveRecordSurvey::Node

#answers, #build_link, #has_instance_node_for_instance?, #instance_node_for_instance, #instance_node_path_to_root?, #is_answered_for_instance?, #remove_link, #validate_instance_node

Instance Method Details

#build_answer(answer_node) ⇒ Object

Build an answer off this node



11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
 
# File 'lib/active_record_survey/node/question.rb', line 11

def build_answer(answer_node)
	# A survey must either be passed or already present in self.node_maps
	if self.survey.nil?
		raise ArgumentError.new "A survey must be passed if ActiveRecordSurvey::Node::Question is not yet added to a survey"
	end

	# Cannot mix answer types
	# Check if not match existing - throw error
	if !self.answers.select { |answer|
		answer.class != answer_node.class
	}.empty?
		raise ArgumentError.new "Cannot mix answer types on question"
	end

	# Answers actually define how they're built off the parent node
	answer_node.send(:build_answer, self)
end

#next_questions ⇒ Object

Returns the questions that follows this question (either directly or via its answers)



30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
 
# File 'lib/active_record_survey/node/question.rb', line 30

def next_questions
	list = []

	if question_node_map = self.survey.node_maps.select { |i|
		i.node == self && !i.marked_for_destruction?
	}.first
		question_node_map.children.each { |child|
			if !child.node.nil? && !child.marked_for_destruction?
				if child.node.class.ancestors.include?(::ActiveRecordSurvey::Node::Question)
					list << child.node
				elsif child.node.class.ancestors.include?(::ActiveRecordSurvey::Node::Answer)
					list << child.node.next_question 
				end
			end
		}
	end

	list.compact.uniq
end

#validate_parent_instance_node(instance_node, child_node) ⇒ Object

Stop validating at the Question node



4
5
6
7
8
 
# File 'lib/active_record_survey/node/question.rb', line 4

def validate_parent_instance_node(instance_node, child_node)
	!self.node_validations.collect { |node_validation|
		node_validation.validate_instance_node(instance_node, self)
	}.include?(false)
end