similar to: How do I persist a value in a collection_select

Hi: Would it be fair to say (or completely out to lunch) that a local variable is local to a method and an instance variable is local to an object. Thus an instance variable is a sort of limited global variable or super-powered local variable. Its scope is larger than a local but smaller than a global. Or that it is a global within a limited domain (the object). or is it a whole lot

Hi: I have a table called clients and each client has many lists (a has_many and belongs_to has been created in the class. What I need to do is get a count of the rows in each list for each client. I was hoping I could do something like client.lists.count but it does not seem to work. Any suggestions? bruce

I''m trying to get a collection_select generated Drop-down box to display two fields from a table (first name & last name); however, I am having trouble concatenating the symbols. It appears as though any code I put in the 5th argument for collection_select is processed prior to executing the collection_select method. The code executes successfully with 1 symbol in the 5th

I create a hash using this line of code @x = Account.find(:all) I then want to go through each element in turn and add a key value pair to the end of it. I thought this would work, but it does not. @x.each do |a| a.merge({"balance"=>50} I used merge because I thought ''a'' would be a hash (how do you find out the type of an object?) I then guess it was

I am creating a data entry form that allows a user to fill in multiple rows and save them all at once. In my controller, I create an array of "person" objects and pass it to the page. On the page, I have a text field like so: <%= text_field "person", "name", "index" => 1 %> Note the "index" attribute, which sets the name and id

Hi, I have 2 models: Model 1: er, Columns: <er_id, er_name> Model 2: er_process, Columns: <er_id, er_process_name> er_id is a foreign key for Model 2. When I am creating a new er_process or editing an existing one, I have been successful to use collection_select to show the available er''s so that the user can select a particular er by its name (to populate the er_id

I have two collection_select in my list.rhtml: <%= collection_select (:region, :id, @regionall, :id, :title,html_options={:onChange => "new Ajax.Updater(''related_provinces'',''/categories/related_provinces/" + "?id=''+this[this.selectedIndex].value, {asynchronous:true, evalScripts:true});"}) %><br> <%= render :partial =>

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

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).

I have form and a collection_select control. I would like to update form fields (text box) when I select an item from the collection_select box. It''s like selecting template from the collection_select and the template automatically loads to text boxes. Any help? -- Posted via http://www.ruby-forum.com/. -- You received this message because you are subscribed to the Google Groups

I want to be able to change one attribute of a link_to to be what is the current selection of the collection_select. And needless to say I can''t quite figure it out. app/views/tasks/show.html.erb Who would you like to assign this task to?<br /> <%= link_to ''Myself'', :controller => ''task_queues'', :task_id => @task.id, :action =>

I use the following code in my view: <%= collection_select(''datedata'', ''date'', @allDate, :id, :date) %> It''s show me the date of all entries in the database (Dropdown menu). Additional, I wrote a helper method "showDate" in the application_helper.rb! How can I use this method in the collection_select for every date entry? thanks

Hi, I am using collection_select to build a drop down list. I would like to have the current value selected. How can I do that? My current code is straight from the example in Pragmatic Programmers book [2nd ed, p480] copying here for reference. <%= @users = User.find(:all, :order => "name" ) form.collection_select(:name, @users, :id, :name) %> I went through the api docs

Hi: Some French fellow posted a notice yesterday about a book that had come out. It''s called "Ruby on Rails" and is apparently by DHH & David Thomas. Is this a scam? If not, does anyone know where I can buy this book in English? I''ve searched the usual places but can''t turn anything up. Bruce

I''m trying to use collection_select, but it''s not working as I expect. The list populates correctly but the current value is not selected. @question contains a topic (via topic_id), and @topics is the list of all topics. Here''s my attempt to create a drop-down list of the topics. form("question") do | form | form << content_tag("b",

Hi, I''m trying to create a dropdown using collection_select. However, I cant seem to get it to select the right option by default. In my controller I have a setup like this: @content = Content.new @content.selection_id = 3 @selections = Selection.find(:all) In my view I have: <% form_for :content, @content, :url => { :action => ''create'' } do |f| %>

Hi, I can do this : collection_select "state", :id, TrainingState.find_all,:id,:name but not this : collection_select "state[]", :id, TrainingState.find_all,:id,:name Anyone any idea why? Is there something about collection_select that does not allow collections? Thanks Chris -- Posted via http://www.ruby-forum.com/.

Hello, I am quite a newbie to RoR, I hope you maybe able to help. I have a collection_select in a _form.rhtml: "collection_select(:assets, :model_id, @models, :id, :model_ref,options={:prompt => ''- Select a model -''})" As you see my drop down menu will show the model_ref column. 1) Is it possible to have more than one column. For example I would like to

In a form, I am trying to use collection_select with multiple=true, like so: collection_select(:user, :roles, Role.find(:all), ''id'', ''name'', {}, :multiple => true) %> My multiple select box is rendered fine, but... I want the select to have the current role options for the user pre-selected when I view it. So if there are five roles in the database and

Hi: I love Locomotive and use it exclusively for my rails projects. I''d like to install GRUFF and give it a try (a graph image creation package). I know I can do sudo gem install gruff from the command line for normal ruby and rails. How do I make gems available to Locomotive? bruce