similar to: Session Based Record Locking - Solutions?

Hi All, I''m having some trouble deciding when and how to implement optimistic locking. Let''s say I have a multiuser Rails app, and let''s say it stores, among other things "vital" customer information. The standard methods created by the Rails generate scaffold script look like this: def edit @customer = Customer.find(params[:id]) end

Hi all. There is an issue with Rails, FastCGI and Apache2 on Debian that I''ve been dealing with since I started Rails development in late 2005. I''ve developed various workarounds but have not been able to solve the problem at the root. Every so often, for reasons I''ve never been able to determine, a load of dispatch.fcgi processes get spawned and take over my whole

The error is caused by the save! method updating an object that another thread (most likely in taskomatic) already updated. In the case of this race condition, we retry saving. However, a proper fix would involve fixing the locking. --- src/db-omatic/db_omatic.rb | 23 ++++++++++++++++++++--- 1 files changed, 20 insertions(+), 3 deletions(-) diff --git a/src/db-omatic/db_omatic.rb

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Today, I had a tragic hard drive crash. I hadn''t updated anything to SVN in two weeks. I''m posting this here as a reminder to my beloved Rails community. Everyone, right now..... make a backup of your rails work. Make sure its on two disks. Many of you already do that automatically, but just make sure its working. Two near-release rails plugins were lost in the tragic crash

Hi all I bumped into the following issue: when trying to restart with capistrano, it does restart, but with the app from the old deployment directory. desc "Restart the app server." task :restart, :roles => :app do run "mongrel_rails restart -c #{current_release}" end Has anybody a better solution for that ? -- Roberto Saccon -------------- next part -------------- An

Hey all, Has anyone out there got Mongrel deployments working with Capistrano? I''ve had a crack at setting it up, and I''ve found that after a deployment (with updated symlinks) that a mongrel restart does not pick up the new deployed site. It seems to me (in my linkted experience) that the HUP that is sent to mongrel does not re-evaluate the ./current symlink that Cap puts in

Hi! Say we have a rails active-record-based model called "instance" which can have different states - STOPPED, RUNNING, STARTING_UP, SHUTTING_DOWN, etc... There is a method #start which changes the instance state to STARTING_UP only if it is STOPPED. def start if self.state == STOPPED self.state = STARTING_UP self.save ... end end As you understand if we have multiple

Hi, IN one of my unit tests I get an ActiveRecord::StaleObjectError: Attempted to update a stale object object.save! in object I have apart from other stuff an after_save method, which calls object.assosication.update_attributes(...) If I remove that line from my code my tests succeeds. Unfortunetly, I do not understand why an update_attributes call can generate an StaleObjectError. Maybe

I understand that ActiveRecord supports the "optimistic offline lock"-pattern through magic fields (created_at, updated_at). However, a scaffolded CRUD-Controller doesn''t generate the necessary code to support this feature (the model state gets lost between two action calls). What is the best practice to prevent users from overwriting objects with outdated data ? --

hey everyone. i know somebody else had started a thread on this subject, but since no one seems to be answering that thread i thought i would start one of my one. i''m doing a project for a client and we need some seriously verbose logging. it looks like log4r can do what i need, but i can''t for the life of me figure out how to plug it into rails. everywhere talks about how

All, Could any of you recommend an out fit for hosting my rails app that is not expensive with excellent support. Thanks Patrick

I''m really lost on this issue. Do I need to reinstall rails / gems? The rest of my rails setup seems to be working. I just can''t run dispatch.fcgi. (Details in original message below). I have no idea how to troubleshoot this. I''m not even positive it is supposed to be runnable from the command line. I found a troubleshooting guide that implied it was supposed to

Hi, in my app, using the error_message_on form helper like this: <label for="user_name">User name:</label> <%= error_message_on ''user'', :name %> <%= f.text_field :name %> generates the following error: undefined method `errors'' for :user:Symbol I am using edge revision 5813 and the simply_helpful plugin. Is there a way to fix this?

I have a small intranet app with only 20 or so users. I''m currently using lighttpd w/ssl for production and mongrel for dev. I don''t think Mongrel supports ssl, but what is the easiest front-end to put in front of it? Pound? Thanks Greg -- Greg Freemyer The Norcross Group Forensics for the 21st Century

I''ve finally gotten lighttpd working for my production instance (SUSE 10.0 with SSL). (Had to install the fcgi dev toolkit, the SUSE 10 ruby-fcgi rpm, and the fcgi gem. I''m not positive all 3 were required, but that is what I did.) Now the devel instance of my app is broken. I''m not sure how to fix it. Previously I was using WEBrick for both devel and production.

I''ve just install Eclipse with RadRails for the first time. I''m trying to follow the very simple DemoAppPart1 at http://wiki.awebfactory.com.ar/awebfactory/published/DemoAppPart1 When I click on the DepotServer and try to start it WEBbrick is not starting. I can cd to the base directory and run script/server and it works. Any idea what I''m doing wrong? Thanks Greg

All, I have a small Intranet app I''m trying to get ready for remote access. (I only have 15 or so users for now and I don''t plan to be adding very many more.). I have installed the login engine and it seems to be working as advertized. (Great job!) For my needs I don''t want random people to be able to register and get access to my app, but I will need to register

Greetings, Does anyone have experience with Rails VPS hosting? I''m basically looking for a hosting reseller option so I can have control of my clients domains and hosting. I''m looking for something easy to use; although I like learning it all, and am learning a lot, I am most definitely not a command line linux user type as of yet. The one that I''ve looked at

All, My initial list is rather busy. I would like to shorten the created_on and updated_on fields to just display the date, not the time. Best wold be a simple 12/28/05 type of presentation. I''ve found the format helpers in rdoc. (ie. distance_of_time_in_words_to_now ), but none seem to be what I''m looking for. How do I control the date format of a timestamp field? Thanks