similar to: Relationship navigation issue

I have a wizard which consists of two pages. To keep it simple let''s say that the first page asks the user to select a state from the drop down menu. In case the user doesn''t select any state, an error message needs to be displayed. Ideally I would like to do something like this. def new selected_value = params[:addevent][:state_id] if selected_value == "-1"

Hi friends! I''m relatively new with Rails and I''m struggling for a long time with this problem (it should have a pattern solution but until now I didn''t find it): I have the following models: Institution, City, State and Country. class Country < ActiveRecord::Base has_many :states has_many :cities, :through => :states end # == Schema Information # Table

I''m sorry to be asking trivial questions, but I''m new to RoR and am hooked :), so I''m very impatient to get things up and running. given two related tables, "pcs" and "venues" (venues have many PC''s and each PC belongs to one venue only) I can use a select() to present venue names in the "new PC" form along with other PC details to

belongs_to :through Why is that not possible? We should have: Street belongs_to :city belongs_to :country, :through => :city -- Posted via http://www.ruby-forum.com/.

Hi All, I took this idea Christian Hellsten and Jarkko Laine''s "Beginning Ruby on Rails E-Commerce". Here is the situation. I will be using the "options_from_collection_for_select" and "collection_select" form helper methods in my view to render drop-down selection lists for City and State that have corresponding city_id and state_id foreign key references

Hi, I''m new to rails/ruby having come from PHP and am just starting to get my head round how easy it can be :) However, can anyone point me in the right direction for dynamicaly updating a select box based upon the choice of a previous select box, without a page refresh. Any and all help greatly appreciated. Thanks -- Posted via http://www.ruby-forum.com/.

Before I waste more time trying to figure that out, I was wondering if it''s even possible? The Rails Way says that observe_field by default will trigger changes in text fields and text areas, and on clicks for radio buttons and check boxes. So perhaps I''m using the wrong tool here? Thanks. --~--~---------~--~----~------------~-------~--~----~ You received this message because you

I have a page, which renders a partial that contains a ''State'' drop down list. Upon change, it re-renders the ''City'' drop down, re- populating it based on selected state_id: Page: /customer/new.rhtml <% form_for :customer, :url => customers_path do |f| %> State: <%= f.collection_select :state_id, State.find(:all), ''id'',

Howdy, I''m a Rails beginner working on my first significant project with RoR. I''m trying to figure out how to validate a foreign key (you know, make sure the row actually exists.) However, validates_associated doesn''t seem to be what I want to use, nor does it work... -- BEGIN -- class City < ActiveRecord::Base has_many :schools belongs_to :state

Hi All, just in a spot of bother with this gem, I am trying to create a new location and get the above msg. here is my controller: class LocationsController < ApplicationController # GET /locations # GET /locations.json def index @locations = Location.all @json = Location.all.to_gmaps4rails end respond_to do |format| format.html # index.html.erb

Suppose I have one table: states id statename And I have two other tables that contains states: houses id color state_id places id place_name state_id How would my model relationships look like? class State < ActiveRecord::Base belongs_to house belongs_to place end class House < ActiveRecord::Base has_one state end class Place <

I have these tables set up like this: listings has_many :states <field>state_id [int] <other fields.... .............. .............> states belongs_to: listings <field>name <other fields.. ............... .................> In my view I have <%= listing.name %> have also tried listing.state_id.name , that didn''t seem to do the magic either. This

Hello, Let''s say I have a model for a "house". Each house has_a "city", which in turn has_a "state" which in turn has_a "country". The objective is to retrieve all houses in a given state, say "Massachusetts". Being new to Ruby on Rails what I like is that things that should be simple usually are simple, and since we have easy access to

I am taking over a code base and am trying to run the tests. I am somewhat new to RSpec so this might be a trivial problem. Basically I can tell that the fixtures are not getting loaded. All 100 tests fail with a similar error. But I don''t know why. Below is the code, with my narrative with *** before it... Can you see anything or give me a clue where to look. So far I am coming up

Here''s what I''ve got: <% @fields.each do |field_name| %> <tr> <td> <%= field_name.humanize %> </td> <td> <% unless field_name =~ /_id$/ %> <%= form.text_field field_name, :size => 40 %> <% else %> <%= select(:vendor, field_name, State.find(:all, :order

I''m completely new to Ruby and Rails and could use some help resolving an issue. I have a list method that is supposed to show the titles and states(status) of requests, but I get an error from this piece of code: <td><%= change.states.state %></td> The error is: c:/ruby/lib/ruby/gems/1.8/gems/activesupport-1.3.1/lib/active_support/dependencies.rb:100:in

Hey guys, I just came across this oddity, not sure what to make of it yet, but I think it might be incorrect behavior. When doing a @inst.find(:all, :include => ["hometeam", "awayteam"] ...) hometeam and awayteam are two references from a belongs_to that is of the same model and of the same table. I will get a pgerror stating that "matches", which is

Hello all, I have created a migration add_details _to users ... ( city_id , profession ) and then migrated it.. when i use params[:user] to update the database by taking user inputs from forms in views, it is not updating the database for these city_id and profession... ( not changing from null ) if add validation for presence of city_id .. it is giving the error "City id cant be

I have a model that has two properties that both come from the same database table. Let''s say I have a "Lead" model. This Lead has both a contact "State" (as in Colorado, Arkansas, etc.) and a "Property State" where the house he''s looking to refinance is located. Both of these should obviously be objects of the type "state".

I have been using multiple observers, i.e., observe_field(), on the same input field and relying on them to execute in the same order that they appear in the page. This has been working fine in FireFox, but it does not seem to work in MSIE; the requests come in and are processed in a different order. Now, I''ve always been a little hesitant about using this technique, but it always