similar to: function before_save

hi @all Can anyone help me? I would like to read the last two records from a database. In the database I have a table with id, name and sex. How can I read the last two records from the entered names, who are female? There are two conditions I need: > last entries > sex-condition User.find(:all, :condition.....) ?? -- Posted via http://www.ruby-forum.com/.

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

Nothing special, just my first plugin. it came out of a request I saw on the list from someone who wanted to be able to tell if a model''s attributes had changed prior to being saved. Well, this plugin does just that (at least I hope it does). http://rubyforge.org/projects/actsasmodified/ Please see the README for details. Constructive comments and criticisms are appreciated. Chris

Hi I a newbie in RoR! So I have an easy question for some of you: I want with the following codeline link to the Admin-Controller. The codeline is on the Product-View with a seperate controller "Product". <%= link_to ''Back'', :action => ''Admin'' %> But it doesn''t work correctly. Can anyone help me? I want to make a simple link!

Can anyone help me?? I validate a form-field: protected def validate errors.add(:name, "should be longer than 2 chars") unless name.length <= 2 end I want to check the variable name. It should have a size over 2 characters. But my function "validate" doesn''t run! Why ??? -- Posted via http://www.ruby-forum.com/.

After a couple of thoughtful comments, I''ve made changes to acts_as_modified plugin. It no longer relies on after_find and after_initialize, which were both causing performance issues. Please check it out and let me know what you think, where you might recommend improvements or additional features and what not. One feature I do have planned (again, thanks to comments), but

Hi! I got a class named EinsatzFilter which I serialized to session. Before saving to session it works afterwards I keep getting the message: "undefined method `to_s'' for #<Person:0x38c6ab8>". "Person" is a from ActiveRecord::Base inherited class. Code: class EinsatzFilter include ApplicationHelper attr_reader :personen, :monat, :projekte, :kunde

All, I''m wanting to initialize an ActiveRecord object. I understand that there is a method called after_initialize that appears to get called right after the ActiveRecord object is instantiated. Is after_initialize a Ruby thing or a Rails thing? Where is after_initialize documented? Can I pass parameters to it? If so, how? I want to initialize the "belongs_to" attribute of

I am pondering the possibility of encrypting/decrypting some fields in a SQLite backend on-the-fly. The point of the message is not security, I know that''s broken, but whether there''s a technique that provides on-the-fly save/read filters. Of course the solution would need to work transparently in joins, so user.posts.last.title would do the right thing if title

Hi, I know that it is possible to execute code each time data is saved into a model by using the +validate+ method. However, is there also a way to execute code each time the data is accessed, not just when it is changed? Bye, Winsmith -- Posted via http://www.ruby-forum.com/.

I created a model with some internal state derived from a combination of database and non-database data. Since I wanted to calculate these values once rather than every time they''re requested by the view, I calculated them in the initialize method and set some instance variables. However, I soon noticed that these values weren''t getting set when I retrieved data using the

I want to expire caches if a certain field of an item changes. How can I compare the item field''s old value to its new value (in the create, or after_save, etc. method)? thanks csn __________________________________ Yahoo! Mail - PC Magazine Editors'' Choice 2005 http://mail.yahoo.com

Hi, I have a user model with an e-mail field. When a user registers for the site, I want them to confirm their email address by typing it in again. If they change their email address, I want them to confirm their email address by typing it in again. However, the user might change things on their account not related to their email address, such as their phone number, and they should not have

Hi all ! I''m having an issue and I can''t seem to make heads or tails of it. I am attempting to add an observer to a model object. I created app/models/greenback_transaction_observer.rb, inherited from AR::Observer, defined methods, registered in config/environment.rb, but things don''t work... So, I took a step back and put in the following code: class

I have 2 distinct types of users (artists and curators) in my system and they currently share all associations (eg has_one :portfolio). However, a curator shouldn''t have a portfolio so I would like to only add that association when required. Obviously I could just return nil for that method, but it doesn''t feel right having that there in the first place. What''s the best

Hi, I''m using activemerchant and setting up a class variable using config.after_initialize. It works great for the first request, but then the variable is nil. config.after_initialize do ActiveMerchant::Billing::Base.mode = :test OrderTransaction.gateway = ActiveMerchant::Billing::PaypalGateway.new(...) end I''m assuming this is is due to the model reloading after each

Question for all: Right now i have a Table in a mySQL DB that has a row called Ingredients. When the data is entered into the DB its enter like so from a text area: 1 1/2 lbs. beef top sirloin, thinly sliced 1/3 cup white sugar 1/3 cup rice wine vinegar 2 tablespoons frozen OJ concentrate 1 teaspoon salt 1 tablespoon soy sauce 1 cup long grain rice 2 cups water 1/4 cup cornstarch 2 teaspoons

What''s the better thing to do in a before_save if you don''t want the save to continue? raise an exception, or do an errors.add or both? Thanks, Chris Nolan.ca http://kweschun.com/ - Do you have a Kweschun?

I am having a problem finding the best way to make a "before_save :encrypt_password" conditional. I have to at times update user model attributes but each time I do this the password is reencrypted because of the above. I need to differentiate between when the user is first logging in and the password does need to be encrypted, and when they are already logged in and the

Is it will known and accepted that before_save triggers should return true? I didn''t notice this before but now I see it in the documentation. Here is what I''m doing in my model: def before_save if self.has_album? self.visible = self.album.visible? end end That results in the expected result when album.visible? is true - but not when it is false. To make it