how can i include a variable at each array in rails?

Question

I have user model and i want the list of users as json and i want the length of name along with the response for each user but i do not how i can do this? I have tried as shown below and it resulted in double render error. If i take the respond_to from the loop then it returns nothing. so please help me.

@users = User.all
   @users.each do |user|
      length = user.name.count
        respond_to do |format|
          format.json { render json: @users.to_json(:include => [:length]) }
        end
      end

I want the response to be like

[{"user":{"name":asgd,"id":1,"length":"4"}},{"user":{"name":asdfg,"id":2,"length":"5"}}]

How can i add methods along with as format.json { render json: all_users.to_json, :methods =>[:pic_url] } ? — logesh
– logesh, Commented Jan 31, 2013 at 11:50

shweta · Accepted Answer · 2013-01-31 11:03:02Z

1

Try:

@users = User.all
all_users = Array.new
@users.each do |user|
  all_users << {"id" => user.id, "name" => user.name,"length" => user.name.size}
end
respond_to do |format|
  format.json { render json: all_users.to_json }
end

answered Jan 31, 2013 at 11:03

shweta

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5 Comments

logesh Over a year ago

size didnt work. so i used count and there are sometimes no name then it displays undefined method `count' for nil:NilClass

Sergio Tulentsev Over a year ago

user.name.try(:length) should guard you against no-names as well

logesh Over a year ago

How can i add methods along with as format.json { render json: all_users.to_json, :methods =>[:pic_url] } ?

logesh Over a year ago

but it adds "methods":["pic_url"] along with response and not the url

logesh Over a year ago

sorry and i have corrected and as you have told i used pic_url => user.pic_url instead of :methods =>[:pic_url]. Thank you any ways.

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