similar to: Model with self.abstract_class=true allows save method call

Hi, Does anyone know much about abstract_class? Does it actually prevent instances of the class from being created? Does it disable certain methods? I already know what it''s for, but I want to know what setting self.abstract_class=true actually does. The reason I ask is that I want to use it for a slightly unorthodox purpose. I want a class who''s only attributes are its

All, I did a scaffold for a model and I ended up with this code in list.rhtml: <% for column in TargetList.content_columns %> <td><%=h target_list.send(column.name) %></td> <% end %> Where is the "send" method and what does it do? I can''t find it on ActiveRecord::Base? I assume that it returns a value based on the column id but I

I would like to apply logical delete in my application(Instead of permanently deleting a record just have been marked as deleted). I have Added *available* column to all tables with default value *true*. Now I want common place to write the following code for all models. 1. Write the instance method which make ''available'' column value false when user clicks on

All, I have a left navigation partial that I want to dynamically generate CSS classes for based on the current controller action. In my ERb template, I have <DIV class="<%= get_menu_display_style(''login_form'') %>"> In application.rb, I have the method get_menu_display_style defined as: public def get_menu_display_style(action_requested)

All, There is an assertion in AWDWR that the in-memory session store is "too simplistic." However, I find myself nudged in this direction by the need to keep a non-serializable model attribute available in my session and the relative pain of implementing either a custom serialization scheme for the model in question (or a custom caching mechanism so that I can store my attribute

I have a patch for Capistrano 1.1 - how do I submit it? Wes -- Posted via http://www.ruby-forum.com/.

All, I am attempting to do an IO.read call on a file inside of one of my model objects. I keep getting Errno::ENOENT The path I''m passing to IO.read is relative to RAILS_ROOT. Two questions: 1) This code was previously executing in my controller - it it significant that I moved it into my model? 2) Is there some way to verify which directory is the current directory for the

Here is my class: class Document < ActiveRecord::Base public def initialize puts "Called initialize..." super.initialize end This generates the following error: You have a nil object when you didn''t expect it! You might have expected an instance of ActiveRecord::Base. The error occured while evaluating nil.initialize WTF? Wes -- Posted via

I notice that ActiveRecord::Base.update_attributes() calls save(). What if I want to get an exception if the save fails? Is there a way to get the update_attributes() function plus the save! function? Thanks, Wes -- Posted via http://www.ruby-forum.com/.

I have a controller method that is attempting to do a render based on a potential error condition. So I have if (condition) render() else ..other code end ....other code in method Should I expect the render to take place immediately or does the render call not work because it isn''t the last statement in the method? Thanks, Wes -- Posted via http://www.ruby-forum.com/.

Hello, I''ve got a problem with the inheritance as soon as I try to use it in a model. I''ve got plenty of items which can share a lot of code, so I created a class "Item", which inherits from ActiveRecord::Base, but because it''s not a "real item" but an interface, I set it abstract (writing abstract_class? method). Then I have all the differents

I had a situation where I wanted to use a <%= %> (scriptlet) in my text_field call to set the "disabled" attribute on the text field, like so: <%= text_field(:current_job, ''removeLinkPos'', :value => '''', :id => ''offset'', :maxlength => 2, :disabled => <%= sometest ? ''true'' :

All, The validation on my object is not being triggered any more on the save action. I''m trying to debug it. In attempting to debug it, I''m trying to understand exactly what validates_presence_of does. Basically, I''m trying to see if for some reason, validates_presence_of doesn''t think my fields are blank now. I see from the API docs. that

All, In a template, I have <%= text_field :target_list, :DateReceived, { :title => ''uploaded_at'', :class => ''target_list_info'', :disabled => ''true'' } %> Here is the DateReceived method on my

Here''s a snippet of my model: validates_presence_of :from_name, :from_email, :reply_name, :reply_email, :eSubject protected def validate puts "Calling: #{target_list_ids}" errors.add_to_base("You must choose at least one target list for this job") if self.target_list_ids.nil? end It appears that the validates_presence_of are being called just fine,

All, I have an attribute on one of my model objects that cannot be serialized because it contains a Proc. Is there a way for me to mark this attribute as "not to be serialized/unserialized" so that session marshaling/unmarshaling won''t fail? Thanks, Wes -- Posted via http://www.ruby-forum.com/.

All, I''m starting to see view state information creeping into my model class. For example, I have text fields in my view that need to be set a certain way depending on whether or not a checkbox is checked. And while the values of these text fields ultimately do represent database columns that are related to the backing AR object, the text_field values also represent attributes on a

I am trying to put some smarts around a call to <%= error_messages_for %> so that when I first come into this page i.e. when my instance variable @target_list has not been defined yet, the page doesn''t break. I''m doing this: <% if @target_list? %> <%= error_messages_for ''target_list'' %> <% end %> I get a syntax error on line 1.

I have a model object that I would like to add an attribute to. It''s an array of other objects. If I do attr_accessor :local_image_tags should I then be able to assign to object.local_image_tags or read from object.local_image_tags without incident? Is ActiveRecord going to assume that there is a table behind these guys? If so, how do I indicate that these attributes are not

I have a model that deals with HTML and I want to use the text_helper.sanitize method to strip the HTML of Javascript. However, it doesn''t appear that I can get easy access to the text_helper methods from within a model. Anyone have any suggestions for how to do this? In general, I think that there are some ActionView helpers which are generic enough to want to use in a model class.