similar to: collection_select

is there anybody who knows how we can get child values using libxml (Reader class) def xml_import_to_brands require''xml'' reader = XML::Reader.file(''c:/brands.xml'') . . .

How do I specify which option should be initially selected when using the collection_select command? I''ve tried: collection_select(:selectionfilter, :producer_id, Producer.find(:all), :id, :name, {:include_blank => true, :selected_value => @initial_selection}) However it doesn''t return the desired results (the option with the value of @initial_selection selected).

Hello all and thank you for reading this message. I am new to RoR, and ruby too, but i am quite excited about it. I am developing a RoR project and with active record associations in the following manner # Tables (all tables have only one record) CREATE TABLE `webcars_development`.`cars` ( `id` int(11) NOT NULL auto_increment, `model_id` int(11) NOT NULL default ''0'',

How to get current binding in a partial (to use helpers and local variables in erb script)? When I invoke result whithout binding, = ERB.new("script").result.html_safe all work (without vars are needed), but when I write = ERB.new("script").result(binding).html_safe (in HAML HTML partial), THE PARTIAL''S REST OF OUTPUT IS CLEAR. What is the problem? -- Posted

I am having an annoying problem displaying the labels of a select box correctly where there is an ampersand contained within the label string. On a form being rendered with the form_for helper the collection_select reads data from a Mysql 5.075 database the text stored in the database is "Surabaya & Surrounding Areas" when rendered and displayed in firefox 3.6 or safari is is

I''m trying to assign a parent foreign key value using collection_select from my child "new" form. The problem I''m having is if I do not make a selection, I get the following error instead of the Rails validates_presence_of error: You have a nil object when you didn''t expect it! You might have expected an instance of Array. The error occurred while evaluating

3 tables. item, brand, commercial item -------- id name brand_id name brand --------- id name commercial ---------- id item_id The idea is that a commercial will have one item. each item will have brand. and a brand may have zero to many items. I can''t figure out how to make the relationships for my models. Eventually, i''d like to be able to show a brand name from a

hello, supposing i have a User class that contains a Wibble class User < ActiveRecord::Base has_one :wibble end in my view i have <%= collection_select :user, :wibble, Wibble.find(:all), :id, :name %> when i post, i get an error like "Wibble expected, got String" how/where am I supposed to convert this posted wibble_id into a Wibble, or am I using collection_select

Hi, I have two objects: Contacts Lists I want to be able to add multiple contacts to multiple lists. I''ve created a linking table and a form that allows me to select the contacts using checkboxes, but I''m having some problems with the controller and model. I receive the following error message when I submit the form: Mysql::Error: Cannot add or update a child row: a

I have a form for submission of brand, model, and style. Style belongs_to model, and model belongs_to brand. The form is actually a style submission form, but allows users to create new brands or models as well, should they not exist. What I want is for the autocomplete for ''model'' to populate when an object for ''brand'' is selected in the first text field..

Hi, Can somebody update me on the state of html_safe strings in rails 2.3.8? I know rails 2.3.6 and 2.3.7 broke a lot of code because strings were being escaped when they shouldn''t have been and I thought this was all fixed in 2.3.8. I''m upgrading an app from 2.3.5 to 2.3.8 and there are many spots where previous code was output correctly and now it expects html_safe method

Hi. I would like to do code refactoring: @beers = [] Beer.all.each do |beer| unless @beers.find{|c| c.brand_id == beer.brand_id} @beers << beer end break if @beers.size > 29 end So I achieved this by writing scope (on PostgreSQL): scope :with_unique_brand, select("DISTINCT ON (beers.brand_id) beers.*") Using this scope alone is working

In my current application, i have food categories: mexican, home made, japanese, ect As these categories only have ID and name, no other attributes, i dont want to create a table on the DB. My first idea was to create a constant named FOOD_CATEGORIES, that is has like: FOOD_CATEGORIES = { 1=>''mexican'', 2=>''japanese'',

Here are my scopes: default_scope :order => ''posted_on DESC'', :conditions => { :status => ''visible'' } named_scope :positive, :conditions => { :rating => ''positive'', :status => ''visible'' } named_scope :neutral, :conditions => { :rating => ''neutral'', :status =>

Hi I''m having a issue with one object when try to update the attributes in this object previously saved in the database I have one object comp and one object reg they have this relationship comp has_many regs reg belongs_to comp when run use the method valid? like this current_contribuyente.comps.build(params[:comp]).valid? it returns: IndexError (string not matched) And when

I have a model Product with an attribute ''brand''. Currently it is a simple attribute, however, I am migrating it to a separate model Brand so that I can have other attributes with each brand. I created the the model and created and ran the migration to create the new table. So far so good. Then I created a separate migration to transfer the data. The up method

Hello, I''m wondering where in the docs am I suppose to find a complete list of options for the collection_select helper? For instance the API docs have an example for the select helper as below: select("post", "person_id", Person.find_all.collect {|p| [ p.name, p.id ] }, { :include_blank => true }) Where the heck do I find valid values for the options and

Hi Group, I have a registration.html.erb page with the following JavaScript at the top which I use to validate form fields: <script type="text/javascript"> <!-- function validate(){ if ((document.myForm.email_projectname.value=="")|| (document.myForm.email_projecttype_id.selectedIndex<1)|| (document.myForm.email_region_id.selectedIndex<1)) { alert

In case where a collection_select is selecting a required value for an object (a not null field), is it possible to set a generic default value for the select box? I have tried :prompt => true and :include_blank => true but neither changes the value for required fields. It does for non-required fields though. Thanks. Nathan Mealey Operations Director Northeast Region Pilgrim IT,

Hi ! I have Event belongs_to Category. The generated source is: <p><label for="event_category">Category</label><br/> <select id="event_category" name="event[category]"> <option value="8">Introduction</option> <option value="7">Programming</option> </select></p> Notice no