similar to: Updating query results in real time with AJAX

hi, I''ve got the following tables in mysql notation: CREATE TABLE `nodes` ( `id` int(11) NOT NULL auto_increment, `parent_id` int(11) default ''0'', `group_id` int(11) default ''0'', PRIMARY KEY (`id`), ); CREATE TABLE `groups` ( `parent_id` int(11) NOT NULL default ''0'', `id` int(11) NOT NULL auto_increment,

I have read extensively on has_many but cannot find an explicit example on how to do what I need. I am a newbie, but can grasp it if I see it in a working example. Here is my scenario... I have a form which I can add a TODO item (patterned after http://darkhost.mine.nu:81/~vince/rails/tutorial.html). I have the form working perfectly so I decided to modify it a bit to add more functionality.

I have two controllers, one for lists and one for list items. When I''m viewing a list I''d like to have a link to create list items within that list. How do I go about calling an action in the listitems controller to create a new item within that specific list? Thanks -- Posted via http://www.ruby-forum.com/.

How do you call a javascript function to do something when the response is returned to the visitors browser? Easy ey? //Daniel -- Posted via http://www.ruby-forum.com/.

<font size="2">I''m working on a large Rails site and we want to move from RSpec 0.8.2 to the latest and greatest.&nbsp; So we ran the translator and yet we''re having a lot of trouble translating should_render.<br><br>I found this on the web:<br><br>We will NOT be supporting the following in the new syntax:<br>&nbsp;

Dear all, Help me get a simple AJAX behavior right. I know zero AJAX, thus please advice. Below is a simplification of the real code and I hope I can describe my intention clearly. class StoreController < ApplicationController def show_cart @cart = Cart.new @new_item = CartItem.new end def add_item @new_item = CartItem.new(params[:new_item]) if

Dear all, Help me get a simple AJAX behavior right. I know zero AJAX, thus please advice. Below is a simplification of the real code and I hope I can describe my intention clearly. class StoreController < ApplicationController def show_cart @cart = Cart.new @new_item = CartItem.new end def add_item @new_item = CartItem.new(params[:new_item]) if @new_item.valid?

I''m setting up a basic shopping cart type app, and the products we have will have multiple options. Size, color, etc. I''m trying to figure out how I can collect the the options that are selected when a user adds the item to their cart. An OptionSet is a group of options ("Size", "Color", etc), and an ItemOption is the option itself ("12 oz",

Good morning, I''ve been working on my first Rails app. I''m replacing an old Perl script that scrapes a bunch of data from an Oracle database, generates a bunch of charts then builds a static webpage with the charts. I''ve re-built it in Rails, with about 25% of the code it took to do in Perl and the users can now get dynamic charts instead of day old charts (or

What have I missed I have a .rhtml with the sandard form parameters <%= image_submit_tag("excel.gif", :alt => "Download List to Excel", :border => 0, :name => ''render_action'', :value => ''excel'' ) %> Which genenerates I believe a valid html fragment for a submit button. <input alt="Download List to Excel"

When I used to write Perl CGI scripts I displayed an animated gif image whilst waiting for a long database query to load, and some javascript to remove the image once the content was available. I''d like to do the same thing with Rails, but it''s not clear to me how to do this in Rails. Does anyone have any suggestions? -- Posted via http://www.ruby-forum.com/.

Thanks to everyone who responded to my first set of questions. Not only did I get my questions answered but I improved my code and learned a couple new things. I think I prefer the mailing list over IRC... easier to follow :-) I have some more questions if you don''t mind. Some are Rails related and some are Ruby related. 1) This is concerning displaying error messages. I am assuming

This is the error that keeps appearing. I don''t understand why "@tblusers" is not correct. Can anyone help? NoMethodError in Tblregisteredphone#new Showing app/views/tblregisteredphone/new.rhtml where line #20 raised: You have a nil object when you didn''t expect it! You might have expected an instance of Array. The error occured while evaluating nil.each Extracted

Hi I''m new to Rails and I''m struggling with a ''has-one'' relationship. I''m trying to save product and image data in seperate tables with one to one relationship. I''m assuming the problem lies in the controller method below but can''t work it out. The models contain the has_one and belongs to statements, and I tried swapping these

I''m adding a web service to a small Rails app that I wrote to learn the framework. This is my last piece of the puzzle and I''m having trouble figuring out how to debug it. I was attempting to iteratively develop the web service method using TDD. There''s so much coercion and stuff going on via the ActionWebService framework that I''m looking to fall-back

Hi, I have performed the cookbook tutorial. Before tailoring the views and controllers, when I put in the model recipe.rb: validates_uniqueness_of :title validates_length_of :title, :within => 1...20 And I tried to introduce some new recipe without the above conditions I got the message: --------------------------------------------------- New recipe 1 error prohibited this category from

what is the best practice for showing animated ajax spinner? The usual Element.show(''spinner'') has to stick with every form''s :loading. Is there some easier or light-weight method? Because I have this page that can contain upto 100 forms. And with all of those would be 100 hidden spinners. Please suggest something. -- Posted via http://www.ruby-forum.com/.

I have an ADD form with foreign key field values selectable via select list ( collection_select (...)). When I add validates_presence_of :someotherfield to my model for error trapping, I get the following error for each droplist: NoMethodError in Reviews#create_curriculum Showing /reviews/_form.rhtml where line #16 raised: undefined method `inject'' for nil:NilClass Extracted source

Hi all, I am using "validates_presence_of" for validating all fields of my registration form. It is working fine and generating custom error message as mentioned. Also clearing all fields. How can restore those fields which are already filled. Problem is "validates_presence_of" clearing (blank) field if it fails, instead of restoring fields which are already filled. Help.

I can''t seem to figure out how to validate a few fields some1 please help me out model--------- class Record < ActiveRecord::Base validates_presence_of :sw, :flex end controller------------ class RecordController < A;;icationController def new @record = Rrecord.new @product = Product.find(params[''product_id'']) end def create