CODEWITHSUNDEEP
jsonruby-on-rails-3jbuilder
Anthony
Anthony

Reputation: 1709

Set json attribute to nil within a jbuilder block

I have a scenario where I want to set a json attribute to nil if its object value is nil within a jbuilder block:

example of how I'm doing it now: unless obj.details.nil? json.details do |json| json.value1 obj.details.value1 json.value2 obj.details.value2 end else json.details nil end My question is there a cleaner way to do this so I don't have to use an unless/else

Upvotes: 4

Views: 1412

Answers (1)

Amirata Khodaparast
Amirata Khodaparast

Reputation: 41

You can use a combination of tap and json.nil! for this.

json.details do
  obj.details&.tap do |details|
    json.value1 details.value1
    json.value2 details.value2
  end || json.nil!
end

OR

json.details do
  obj.details.tap do |details|
    return json.nil! if details.nil?

    json.value1 details.value1
    json.value2 details.value2
  end
end

Upvotes: 4

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