similar to: validates_numericality_of positive integer

hi there. Here is the simple scenario: My active record connects to a table that contains an integer field. My form contains a text box that allows me to enter a value to get updated to the integer field. If anything gets entered that is anything other than a POSITIVE INTEGER, I want to display an error. I have noticed that if I create a new active record like @record =

Hi, I am having a problem saving a new model that has an associated child model. If a new ticket is being created and will have one comment to go with it then I tried this in my action @ticket = Ticket.new(params[:ticket]) @comment = Comment.new(params[:comment]) @ticket.comments << @comment if @ticket.save @notice = "Ticket added. Thanks for

Hi, I''m interested in using a currency conversion web service in my rails app. Does anyone have a free service that they use and like? I found this one http://www.webservicex.net/WS/WSDetails.aspx?CATID=2&WSID=10 I''ve tried to make a simple, plain Ruby script to connect to this and get a conversion rate without success. How do I integrate a webservice into my rails app? I

Hi, A store front a customer wants to GET /product/5/show. But for the application this is really GET /cart_item/new/5 or even better /cart_item/new?cart_item[product_id]=5 When the customer clicks add_to_cart they POST /product/5/show so that the url doesn''t confuse the user when any validation errors occur. But for the applicaiton this should be POST

Hi, I''ve read the Agile Rails book''s chapter on ActionMailer a few times. Seems pretty straight forward. Unfortunately I can''t get my application to actually send mail. I uploaded my application to the web server and tried to get a mail message sent. Nothing happened. I looked in the log file and it says Sent mail: From: service@freedomkilts.com To:

Hi, I want to start using has_many :through. I think that eventually I''ll be removing all uses has_and_belongs_to_many from my project. Here is my situation I''m using SVN I want to use edge rails Reading the wiki about switching to edge rails[1], I can''t figure out which combination of subsections I must perform. Do I want edge rails to reside in the vendor

Hi, I am changing a very standard old school website to rails. When I make the change to rails, all of the old urls will not be valid. If a person has a bookmark to an old web page I would like them to be directed to the front page of the new website www.domain.com. How do I do this? Do I do something in routes.rb? Thanks, Peter

Hi, I''ve been confused about the purpose of _marker in dragdrop.js for quite a while. It doesn''t really look like it does anything with ghosting on or off. I removed the mark method and didn''t discover any problems. Is all the mark business a relic from some past idea? Thanks, Peter

Hi, How do I make an image that is a clickable link the rails way? Is there a view helper for this? Thanks, Peter

Hi, Which FTP client would fit in nicely with OS X and Textmate. Thanks, Peter

Is there a way to use validates_numericality_of and still allow null values? I have a model with some optional values that can be nil, but if they''re present, they must be numbers. Will I need to construct a custom valiation for this, or is there some method built in? Seems like it would be a common enough need. Jeff -- Posted via http://www.ruby-forum.com/.

Hi, I am trying to convert a hash to JSON using ActiveSupports built in .to_json. I am doing similar to the example below but are there certain strings that could go in place of ''bar'' or ''rez'' that will break the to_json method? I am using a very long string from rjs output in place of ''bar''. Perhaps .to_json is not ready yet? Thanks, Peter

hi, i have noticed that the validations in RoR happen at server side mostly what sites do is using javascript they validate user information there... whats the point of doing it at the server side is it that loading of javascript file in a browser makes a response to client slow and validation at server side offsets that....????? any sugeestions???? is it that i am missing something as

Hi, I would like my model instance to produce it''s own list of options for a form select. This is from a product model that has_many variations def alts_for_select(current_id) the_map = variations.map{|v| [v.name, v.id]} options_for_select(the_map, current_id) end the model cannot see the options_for_select method I tried to use

Hi, I have an online store and I would like to simulate a complete shopping trip which involves several controllers? How can I write a test that calls actions from different controllers in a particular sequence? Something like the following which involves department, product, cart_item, and cart controllers. get department 5 check it has a link to product 4 get product 4 post cartitem/create get

I haven''t updated rails today and all of a sudden scaffold is pluralizing my names ruby script/generate scaffold Admin::Category produces class Admin::CategoriesController < ApplicationController Do I really want "CategoriesController" instead of "CategoryController"? Thanks, Peter

Hi, I''m looking at the rails cookbook for uploading files[1]. At the bottom of the page it says that the sanitize_filename functioin would probably go in a helper or a library. I wonder where these files would be or what they would be called. Pehaps there are some conventions I need to know about? Thanks, Peter [1] http://manuals.rubyonrails.com/read/chapter/78

I have a situation in which I want to validate a number is not zero. Both positive and negative values are acceptable, just not zero. validates_numericality_of has an :equal_to attribute, but I don''t see a :not_equal_to. I have not yet been able to find anyone who has discussed this. I did find information about custom validators, so I am now using a custom validator to check the field

Hi, I have an rjs file. I only have one controller called called front. I have views called "new_title.rhtml" and "_new_title.rhtml" These work page.replace_html ''title'', ''new title'' page.replace_html ''title'', :partial => ''new_title'' page.replace_html ''title'',

Hi, I''ve been doing a lot of rewriting of dragdrop.js. I''ve covered at least eight open tickets, made multiple selection of draggables, droppables can accept multiple items at a time, added 21 consistently-named callbacks and have reorganized the code. I''m working on adding more things to Sortable now. I''m no JavaScript expert, this is my first project, and I