similar to: Keeping track of logged users

Hi Railers, I am trying to create a simple application like a guest book which has users and uses sessions to keep track of which users are logged on. The user''s page is constructed after doing some SQL queries and the user clicks on another link and hits the back button I dont want to regenerate the whole page (which is what happens now) .So I want to use some kind of caching mechanism.

Hi all! I am trying tu set up RedCloth for user-submitted comments. And here is my problem. The :filter_html option just breaks images :-( For example, if I try in irb: string= "Some textile !agif.gif! and textile again" RedCloth.new(string, [:filter_html, :filter_styles]).to_html(:textile) I get: NoMethodError: You have a nil object when you didn''t expect it! The error

hi. i try to record a global array to save on-line member. it''s put this array in controllers/application.rb or not? my code like this: $online_users = Array.new and each member sign in will add himself to $online_users. miss something? all regards -- Posted via http://www.ruby-forum.com/.

I was at http://rails.techno-weenie.net/ and I like what ajax does when you click on "login" how can I do this on my own website? Is this with the defualt JS libary? -- Posted via http://www.ruby-forum.com/.

I want to have a form to change a users password. I can''t figure out what the method in the controller should look like. I tried @user.save and @user.update_attributes, but can''t get it to work. My Form: ############################## <%= start_form_tag :action => "update_password", :id => @user.id %> <%= password_field ("user",

Hello, Just wondering if someone here as successfully ported Liquid to use with a database. I would like to try it out but not sure how Liquid integrates with current templates. Thanks Frank --------------------------------- Yahoo! Mail - Helps protect you from nasty viruses. -------------- next part -------------- An HTML attachment was scrubbed... URL:

It seems that attachment_fu is a pretty popular plugin (it''s great), but I''ve been having a terrible time trying to figure out an issue when using "update_attributes". I''m storing files on the file system rather than in a database. It seems that when "update_attributes" is called with a new file, upload_data= tries to copy a file that

In DHH''s keynote, he alluded to doing logins with REST. Has anyone implemented this, and if so, would you mind elaborating on how you did it please? Thanks in advance. -- Posted via http://www.ruby-forum.com/.

please help me get this plugin installed... I have no access to techo-weenie.net due to a firewall blocking the weenie crap in its domain name. more specifically, i''m trying to do this: script/plugin install http://svn.techno-weenie.net/projects/plugins and it bombs. On a machine w/ access to this repository, I did an svn checkout and tar''d up the contents... then

Hi, I''m a new beginner so, please forgive if I am somewhat imprecise... I''m wanting to use fragment anchors in my pages. (I think that is the right term for them). So my URL will be something like pmrs/1#id56. I am using REST and resource style mapping. My first question is will this work o.k.? I''ve tested it a tiny bit and it seems o.k. but I''m worried

Hi, I dumped the schema using rake db_schema_dump. Now how do I create a migration containing all the data I have in my dev db ? -- Jean-Christophe Michel

Hi, A quick search didn''t explain what fastthread is, and how it relates to mongrel. Why would I want to install fastthread? Thanks, Joe

Hi! I have a rails action controller method which takes long time to complete. After about 4-5 minutes running, I get a "execution expired" error which stops this method''s execution. I looked and looked, searched and searched, but could not find how to configure my ActionController''s timeout to be greater than the default. Could anyone help? -- Posted via

I have a STI class tree. I want to set some default values (calculated values so I can''t set it in the database as defaults) on every created instance regardless of what subclass is actually instantiated. So I figured adding a after_create callback in the top class in the hierarchy should do the trick. It seems it doesn''t get called :( Code: class SuperClass <

After drawing many virtual blank stares in the IRC channel and finding zero results on the wiki for ''sweeper'' I''m left to wonder whether these are actually officially supported, or are on their way toward being deprecated. Is there a better way of expiring caches on model saves and deletions? Sincerely, Tom Lieber tom@alltom.com http://AllTom.com/

Hello, I was wondering if there was a method in Rails that returns the sum of a column. For example, I have a column called ''score'' and writing a SQL statement such a ''select sum(score) from table_name'' does return the sum of the values in the column. In the past (not too long ago being a newbie), I defined all sorts of methods only to discover that Rails

Hey guys and gals, I have the following object that has acts_as_versioned: class Note < ActiveRecord::Base acts_as_versioned belongs_to :user end The schema for my notes table is as follows: create_table :notes, :force => true do |t| t.column :id, :integer t.column :noteshare_id, :integer t.column :user_id, :integer t.column :title, :string

Hi guys Question about acts as attachment still getting the following error undefined method `content_type'' I have set everything up according to the following page however i am still have trouble http://weblog.techno-weenie.net/articles/acts_as_attachment One thing, I have wanted to add this to an existing model in my system. I have not used the... script/generate

Hello, I was wondering whether anybody would share a working example of a multiple html update on a single xmlhttprequest. Thank you in advance for your help. _________________________________________________________________ On the road to retirement? Check out MSN Life Events for advice on how to get there! http://lifeevents.msn.com/category.aspx?cid=Retirement

Search doesn''t seem to be working, so forgive me if I''m covering old ground here, but I''m having a difficult time figuring out how to implement a "SUM()" function using Active record. Obviously, I could just create a query, but I''d rather make it part of my active record object. Basically I have an object called "Report <