Module: DR::Converter

Extended by:
Converter
Included in:
Converter
Defined in:
lib/dr/base/converter.rb

Instance Method Summary collapse

Instance Method Details

#to_hash(obj = nil, methods: [], recursive: false, check: false, compact: false) ⇒ Object

convert an obj to hash, using 'methods' for the methods attributes



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# File 'lib/dr/base/converter.rb', line 5

def to_hash(obj=nil, methods:[], recursive: false, check: false, compact: false)
	return {} if obj.nil?
	obj||=self
	stack=[*obj]
	processed=[]
	klass=stack.first.class
	h={}
	while !stack.empty?
		obj=stack.shift
		next if processed.include?(obj)
		processed << obj
		attributes={}
		methods.each do |m|
			next if check and !obj.respond_to? m
			v=obj.public_send(m)
			attributes[m]=v
			if recursive
				vals=v.kind_of?(Enumerable) ? v.to_a.flatten : [v]
				vals.select! {|v| v.kind_of?(klass)}
				stack.concat(vals)
			end
		end
		attributes=attributes.values.first if compact and attributes.keys.length == 1
		h[obj]=attributes
	end
	h
end