Rails-Jbuilder和局部使用？

Question

I have a template that takes an array of objects, and for each object it needs to render a partial template. The result comes back as empty objects. Any idea what's wrong in the code??

Controller

def index
   render text: render_to_string(template: 'users.json.jbuilder', locals: {:@uses : users}
end

users.json.jbuilder

json.array! @users do |user|
     json.partial! 'user.json.jbuilder', { user: user}
end 

user.json.jbuilder

Jbuilder.encode do |json|
   json.id user.id
   json.username user.user_name
end

Result

[{},{},{},{},{},{},{},{},{},{},{},{},{},{}]

Answer 1

user.json.jbuilder means that Jbuilder.encode do |json| is already summoned.

So, your user.json.jbuilder file would become functional as follows:

json.id user.id
json.username user.user_name

That's it... End of story :)