Is there a possibility to replace the value of a textfield within rjs? I am calling a link_to_remote within a form, to get some data. Now I want to fill in that data in the existing form. The problem is that I can replace the html, but I can't replace the value="text_i_want_to_change", but that is the thing that you see and that is submitted by the form.
Any suggestions?
In your .rjs:
page[“text_field_id”].value = new_value
Jason
Hi Pietropizzi,
Pietropizzi wrote:
Is there a possibility to replace the value of a textfield within rjs? I am calling a link_to_remote within a form, to get some data. Now I want to fill in that data in the existing form. The problem is that I can replace the html, but I can't replace the value="text_i_want_to_change", but that is the thing that you see and that is submitted by the form.
Any suggestions?
Two possibilities. First, a little background. Javascript acts on DOM elements that it typically finds by their id, less often by their name. RJS gives you two options: 'replace' which will replace the entire <element id='unique_identifier'>contents</element> with a new one, and 'replace_html' which will replace the contents within the <element id='unique_identifier'></element> but leave the 'wrapper' alone. Each is an option you could use. Either way, you're going to have to either put a unique id on the textfield itself, or wrap it in another element that has a unique id. (e.g., <div id='unique_identifier></div>) A lot of Rails methods call for element name (which is not required to be unique) and then, unless you specify otherwise, also use that name as the elements' id. That can give you a rendered page with lots of elements having the same id. Result: your RJS will not work. Use Firebug to inspect the DOM.
Easiest option to understand is to wrap the textfield, then use page.replace_html with a partial that feeds the value you sent back to the controller with link_to_remote as a local.
If you haven't already picked it up, I strongly recommend Cody Fauser's RJS tutorial. Best $10 bucks you'll spend learning Rails / Ajax. It's a PDF available at O'Reilly and will have you done with this and moving forward in very short time.
hth, Bill