Given the following Ruby data structure:
data = { :a => 1, :b => 2 }
... I want to create the following JSON:
{"result":[
{"letter":"a","number":"1"},
{"letter":"b","number":"2"}
]}
How do I accomplish this using Rails' JBuilder?
Ideally, I'd like to go directly from the Hash to the JBuilder object, without translating the Hash to an Array first.
It's easy.
require 'jbuilder'
data = { :a => 1, :b => 2 }
out = Jbuilder.encode do |json|
json.result data do |kv|
json.letter kv[0]
json.number kv[1]
end
end
puts out #=> {"result":[{"letter":"a","number":1},{"letter":"b","number":2}]}
I prefer this notation since it isolates the key from the value:
require 'jbuilder'
data = { :a => 1, :b => 2 }
Jbuilder.encode do |json|
json.result data do |k, v|
json.letter k
json.number v
end
end
Basically identical to the previous answer but a little simpler
