similar to: Rails.cache and problem with model id?

The DB load on my site is getting really high so it is time for me to cache common queries that are being called 1000s of times an hour where the results are not changing. So for instance on my city model I do the following: def self.fetch(id) Rails.cache.fetch("city_#{id}") { City.find(id) } end def after_save; Rails.cache.delete("city_#{self.id}"); end; def

I am having a problem with doing a :through that goes back to the same table. The following are my two classes: >>>>> class User < ActiveRecord::Base has_many :spanks has_many :spanked, :through => :spanks, :source => :spanked_user has_many :was_spanked_by, :through => :spanks, :source => :user end class Spank < ActiveRecord::Base belongs_to :spanker,

Are there any best practices for implementing a back/cancel/return button... even when the page you want to return people too is 2 pages back (when people submit form and then want to return)? Thanks :-) Your Friend, John Kopanas http://www.kopanas.com ===================================================================== http://www.soen.info - source of the freshest software engineering

Is it me or is my model getting the created_at from the wrong model! I have a HABTM relationship between Problems and Tags. In one of my controller I do the following: def view @tag = Tag.find_by_name @params[:id] end In my view I do this: <% @tag.problems.each do |problem| %> ... <%= problem.created_at %> ... <% end %> Now, how come the created_at

Been a while since I programmed in Ruby and Rails and some of the basic concepts I just loose so quickly. This one I can''t find any examples of. I want to pass two pieces of information in my URL. The :id plus I want to pass my user_id. How do I pass it using the link_to? Stupid question I know... but I can''t find the answer. John Kopanas http://www.kopanas.com

Good Friday Everyone :-). These are my models: Problem -> has_and_belongs_to_many :tags Tag -> has_and_belongs_to_many :problems Now if a tag does not exist and I create it and associate it to the problem it works self.tags << Tag.create(:name => tag) But if I have the tag already in the DB and just want to link it to another problem it does not really like me. I do it

I know it might seem like I am repeating myself but I can''t seem to find the solution to my problem. I am trying to run edge rails using "rake freeze_edge" and every time I do that my application stops to work. I get an error on every page. I get a "uninitialized constant modelname" error where modelname is the object being created for that view Has

Does it make sense that if I type cap show_tasks it works but when I type rake show_tasks I get: rake aborted! Don''t know how to build task ''show_tasks'' /usr/local/lib/ruby/gems/1.8/gems/rake-0.7.0/lib/rake.rb:1287:in `[]'' /usr/local/lib/ruby/gems/1.8/gems/rake-0.7.0/lib/rake.rb:300:in `[]''

Is there a way to get rid of the divs around an error field. These divs are causing me headaches. Any suggestions :-)? John Kopanas http://www.kopanas.com ===================================================================== http://www.soen.info - source of the freshest software engineering information on the net http://cusec.soen.info - software engineering conference

I am running into a problem with two of my tables and the "uninitialized constant" error when using migration. I get the "uninitialized constant Note" when running the following code in my migration file: create_table :notes do |t| t.column :id, :integer t.column :noteshare_id, :integer t.column :title, :string t.column :covered, :string

Just wondering if any one has been able to come up with a solution to access Hotmail / Gmail / Yahoo address books via their ROR app? Thanks for any tips/guidance you can provide. Frank --------------------------------- Brings words and photos together (easily) with PhotoMail - it''s free and works with Yahoo! Mail. -------------- next part -------------- An HTML

If I wanted to override the error_messages_for method where within the rails structure would I put it? Which file? Thanks :-) John Kopanas http://www.kopanas.com ===================================================================== http://www.soen.info - source of the freshest software engineering information on the net http://cusec.soen.info - software engineering conference

I want to create a random string of length n that is made up of characters and integers. Is there a function in rails or ruby that allows me to do this? Thank you my friend :-). John Kopanas http://www.kopanas.com ===================================================================== http://www.soen.info - source of the freshest software engineering information on the net

What do you do when the ftp login username is different then the svn username? Every time I try to deploy it gets stuck right here: [kopanas.com] executing command ** [out :: kopanas.com] Authentication realm: <http://kopanas.com:80> kopanas.com ** [out :: kopanas.com] Password for ''jkopanas'': ** [out :: kopanas.com] subversion is asking for a password ** [out ::

Fragment identifiers, it took me 30 minutes just to figure out what they are called. I would like to be able to create url that looks like this: post/view/id#comments How do I do that with a link_to function? link_to "Comments", :controller => "post", :action => "view", :id => post.id ??? Thanks guys! :-) John Kopanas http://www.kopanas.com

Taking time off from programming is always painful :-). I have the following Models: ==== class Tag < ActiveRecord::Base has_and_belongs_to_many :problems end class Problem < ActiveRecord::Base belongs_to :user has_and_belongs_to_many :tags end ==== And the following migrations: ==== create_table "problems" do |t| t.column "user_id", :integer

I am trying to use acts_as_versioned and acts_as_taggable (plugin) on the exact same model. Has anyone successfuly done this? I think what I need to do is make model_versions acts_as_taggable instead of my main model. Anyone have any other suggestions or any suggestions how to do this? Your Friend, John Kopanas http://www.kopanas.com

Earlier I forgot to add updated_at and created_at columns for my HABTM relationship so I created a migration to add them. In the migration I also want to go back and set the value of the created_at and updated_at columns for the previous rows. What is the best way to do that? Initially I thought I was being smart and decided to put an UPDATE SQL query in a find_by_sql statement and

Is their a way to validate an object without saving it? So I can do something like this if user.save else end But where save is just validating it but not actually saving it into DB. I just don''t want to save the object yet. Thanks guys and gals :-) John Kopanas http://www.kopanas.com ============================================================ http://www.soen.info - Index of

Instead of using sequential integers for IDs for my objects I was wondering if I could easily make it so that my IDs where longer auto- generated random strings/integers. So instead of: http://www.mydomain.com/user/view/1 Would be: http://www.mydomain.com/user/view/d81096b87a7c5565f On top of that... is there big benefits for security reasons to use non-sequential numbers? Is it worth