How to encode JSON hash using JBuilder in Rails?

Question

There is 'groups' hash, when key of the hash is name of some group, and value of the hash is an array of some items. I want to encode it into JSON, but I can't event encode name of key in hash, because it's not contanstant:

x = Jbuilder.encode do |json|
  groups.each do |k, v|     
    json.set!(:group, k)
    json.group k    
  end
end

May be you suggest me how to execute method of 'json' using dynamic name?

isaach1000 · Accepted Answer · 2013-11-28 10:44:23Z

4

Use the array! method:

json.array!(groups) do |json, group|
    json.set!(group.name, array)
end

Edit: For a hash of groups with each group's name as its key, do this:

groups.each do |group|
    json.set!(group.name, array)
end

edited Nov 28, 2013 at 10:44

answered Nov 28, 2013 at 10:24

isaach1000

1,8391 gold badge14 silver badges19 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

malcoauri Over a year ago

Your answer is wrong, I need to render hash of arrays: { "type1": [...], "type2": [...] }. Can you make some example?

Collectives™ on Stack Overflow

How to encode JSON hash using JBuilder in Rails?

1 Answer 1

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related