problem: passing post parameters to a controller

rubyonrails-talk
1

Hi, I have a problem passing parameters via post. I've examined the log file of a scaffolded version against my AJAX version and can't figure out what's wrong. I think I've also isolated the problem to be parameter passing by using logger.debug.

the AJAX part; var name=document.getElementById("name").value; var notes=document.getElementById("notes").value; var parent_nid=document.getElementById("parent_nid").value; var post_params="name="+name+"&notes="+notes+"&parent_nid="+parent_nid+"&authenticity_token="+window._token;

var req=XMLHttpRequest(); req.open("POST","/categories/create",true); req.setRequestHeader("Content-type","application/x-www-form-urlencoded"); req.send(post_params);

The controller part: (mostly from scaffold) @category=Category.new(params[:category]) logger.debug "name:" logger.debug @category.name logger.debug "notes:" logger.debug @category.notes logger.debug "parent_nid:" logger.debug @category.parent_nid Category.create(@category) redirect_to :controller=>'dashboard'

the log part: Parameters: {"name"=>"abc", "authenticity_token"=>"d8c79e2216df723f373a9170fa364f9a3c147092", "notes"=>"abcde", "parent_nid"=>"0"}

name:

notes:

parent_nid:

2

Hi, I have a problem passing parameters via post.

post_params="name="+name+"&notes="+notes+"&parent_nid="+parent_nid+"&authenticity_token="+window._token;

...

the log part: Parameters: {"name"=>"abc", "authenticity_token"=>"d8c79e2216df723f373a9170fa364f9a3c147092", "notes"=>"abcde", "parent_nid"=>"0"}

The parameters aren't nested properly, you want.

{ "category" => {"name"=>"abc", "notes" => "abcde", "parent_nid" => "0"},    "authenticity_token"=>"d8c79e2216df723f373a9170fa364f9a3c147092" }

I also suspect that the parent_nid attribute of category probably should be parent_id (based on convention assuming that a category belongs_to :parent)

So I think you want something like this javascript:

post_params="category[name]="+name+"&category[notes]="+notes+"&category[parent_id]="+parent_nid+"&authenticity_token="+window._token;

HTH

3

That did it!

Thank you very much Rick!!