Outputting jSON in a rails app

Question

ok, rails 3 new developer here.

I want my jquery to be able to get a json object from the rails 3 application for projects. Here is my controller.

def yo         


        

Answer 1

This is not issue of Rails but rather AJAX / jQuery not sending Accept header: Try this:

$.ajax({
   url: 'url_to_action', dataType: "json",
     beforeSend : function(xhr){
       xhr.setRequestHeader("Accept", "application/json")
     },
     success : function(data){
       //.. do something with data
     },
     error: function(objAJAXRequest, strError, errorThrown){
       alert("ERROR: " + strError);
     }
  }
);

If all your AJAX requests expect JSON, then you can set header globally:

$.ajaxSetup({
  dataType: 'json',
  'beforeSend' : function(xhr){
    xhr.setRequestHeader("Accept", "application/json")
  } 
});

Other option would be adding .json to path or data:{format: 'json'} to $.ajax hash of options. Rails supports format path suffixes by default for resoures routing. Just try rake routes to see.