similar to: when does validation happen

Hi, What is the simplest way to validate a positive integer? validates_numericality_of :foo, :integer_only => true how do I add the positive part? Do I need another validation statement for pattern matching or do I have to write a validate() funciton for my model? 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 All, View ******** <tr> <td><b>Student: </b></td> <td><%= text_field "student", "fname", "size" => 40, "maxlength" => 40 %></td> </tr> <tr> <td><b>Program: </b></td> <td><select id="student_program_id"

Hey All ! I have a form which contains two models. I would like both models to be validated, but have their validations aggregated on the page. If I do: <%= error_messages_for(:model1) %> <%= error_messages_for(:model2) %> It puts two big validation blocks on the page. I would like all the errors from both models, but only in one validation box. Is this possible ? All my attempts

Hi, I have validation working in a situation similar to the following. (Please forgive any minor typos below) class Department < ActiveRecord::Base has_many :people end class Person < ActiveRecord::Base belongs_to :department validates_presence_of :name end @department = Department.new(:name=>"bedrock") @department.people << Person.new(:name=>"fred")

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

using the Rails Recipes book, i went through the tutorial on setting up authentication on a site. the tutorial was great, but it raises a few questions. the fields in the database are password_hash, and password_salt. the tutorial creates another method for password that takes the value it was given and hashes it and adds the 6 character salt at the end. what if i want to perform validation

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''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

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

Can somebody tell me why the following RegExp doesn''t work for date validation in Rails... It validates fine in RadRails -- using REgExp panel. Intended format: (mm/dd/yyyy): %r{^(0[1-9]|1[012])(-|/)(0[1-9]|[12][0-9]|3[01])(-|/)(19|20)([0-9][0-9])$} If i try the following, it works in Rails: %r{(0[1-9]|1[012])(-|/)(0[1-9]|[12][0-9]|3[01])} When I add the last piece, it

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, Correct me if I am wrong but there doesn''t seem to be an easy way to add validation outside the pre-built ones (validates_presence_of, validates_lenght_of, etc.). Ideally there should be something like: Class Person < ActiveRecord::Base validates :my_method, :on => create, :message => ''was not valid'' def my_method(param) false unless

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''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 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, Something has been bothering me about model validation: how do I know that the database has not changed in between when I validate my model''s data, and when it actually gets saved to the database? As a simple example, say I have a User model like: class User validates_uniqueness_of :username end When this gets saved to the database, the validation code checks that there is

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

Form level validation involving enforcing a relation between two or more form inputs that may not even be in the model: I am building a form that will query a range of records between two dates. The form ask for a starting data and a ending date. I want to validate that the user selected a starting data before or equal to the ending date. It seems that this validation should happen in the