similar to: find_in_batches vs limit

We''ve been using find_in_batches to reduce memory usage, and recently noticed one of our more intensive background processes had a huge memory footprint (600mb+) and was getting killed by our memory monitor. We were unable to reproduce this in development, and after investigation, the culprit is query_cache. Wrapping the task in ActiveRecord::Base#uncached kept the task stable (~200mb),

Hello, At guides.rubyonrails.org I read about the possibilities of find_in_batches. However I cannot find this option anywhere in the API documentation (api.rubyonrails.org). My question: where should I look for the documentation of this command? -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email

What''s the best way to handle views that show the top 10/most popular/ Recently updated/most commented type listing? Should I have a separate model that is populated with records from other models by a background job or should I need to use some sort of caching? Perhaps both? Thanks! -- You received this message because you are subscribed to the Google Groups "Ruby on Rails:

0 down vote favorite I notice that in my production enviornment (where I have memcached implemented) in see a cache-control - max-age header in firebug, anytime I am looking at an index page (posts for example). Cache-Control max-age=315360000 In my dev environment that header looks like following. Cache-Contro private, max-age=0, must-revalidate As far as I know I have not done anything

I have two models Club and users. users are regular authenticated users and some of them might create a club. A club can also have members (essentially users) and there are attributes and models that apply to member but not to users. Here is what I have right now. Club => belongs_to :user User => has_many clubs (since a user can host multiple clubs). Now how do I fit this member model

Is it possible to take advantage of http caching/proxy caching with dynamic pages? i.e. pages with section/part that can change over time but certain part of the page remain the same. I would rather not keep re-rendering the static part but insure the dynamic part are rendered with fresh data. I am using memcached mostly as an object store that I can minimize db hits but I still am rendering a

I am using memcache for caching in my rails app and currently I have a dev and a production environment. I would like to run the dev environment without caching so that I can debug more easily but I wanna enable the caching in production obviously. I am using github and capistrano for deployment. Without doing a check at every statement where I can potentially dig into the cache, is there any

I am using rubyzip and am trying to put a huge csv file with 1.4 million rows into the zip file. Using jruby I get a out of heap error. I believe the error happens in the block below: Zip::ZipOutputStream.open(zip_path) do |zos| zos.put_next_entry(File.basename(csv_path)) zos.print IO.read(csv_path) end -- You received this message because you are subscribed to the Google

Hello, I''m having some trouble with forms, my app allows to enter data by using a multi-step form that has 7 steps. There are 3 steps that may let the user to add 1 form, for example there''s a step called "children" and that children has the following fields: * name * age * gender but one father may have more than 1 child and I''m adding another form with

When I use find_by_name method I get LIMIT 1 result. > SELECT "users".* FROM "users" WHERE "users"."age" = 25 LIMIT 1 But the "age" column is not unique in my table and its value may repeat. So I expect that an array of records where "age" is 25 will be returned. But AR limits the query by 1. How to avoid it? Or is it the default

I created a fresh new rails app, no gems, no nothing. Completely unmodified. Doing anything that initializes rails takes 2 - 3 times longer in ruby 1.9.1 than it does in 1.8.7. Obviously with a fresh rails app, this is only 2 - 3 seconds extra. But with a decent sized app, this can take up to 25 seconds for rails to initialize, vs the 12 seconds in 1.8.7. I''ve been racking my brain on

I am getting following error while run my rails app in my server ActionView::Template::Error (You did not provide both required access keys. Please provide the access_key_id and the secret_access_key.): -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to

I am trying to understand how bundler works. Looking at the manual [1] it says "If a Gemfile.lock does exist, and you have not updated your Gemfile(5), bundler will fetch all remote sources, but use the dependencies specified in the Gemfile.lock instead of resolving dependencies." The question is how does it know whether Gemfile has been updated? I expected to find something in

Hello, I need to consume a web service of an App called RedMine created with Rails, in order to have a sort of "separate" interface (not the same as the app) for one of the departments (that interact with the app) to interact with it and generate some different reports based on the same data. I don''t know much about either (ETL and Rest), all I know is that ETL seems to

This is for rails 2.3.5 can the manual exception notification be used in models or just controller? Thanks -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Core" group. To post to this group, send email to rubyonrails-core@googlegroups.com. To unsubscribe from this group, send email to rubyonrails-core+unsubscribe@googlegroups.com. For more

Hi all, I am using paperclip plugin. when i am trying to upload photo i am getting this error " Photo Paperclip::CommandNotFoundError " and i am getting this error on my server production mode. if i run on development mode on my server i can able to upload the pic. why this is happening i have no idea. can any help me out. Cheers, Kp -- You received this message because

Hi Everyone i am using devise for authentication for my app. Is there any way, Admin user can view other users password as normal string. Without storing there password as string in database? Please advise. -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to

I use authlogic for authentication and paperclip for handling user''s profile picture attachments. I use the following method to get the current_user def current_user_session return @current_user_session if defined? (@current_user_session) @current_user_session = UserSession.find end def current_user return @current_user if defined?(@current_user)

I''m trying the RailsInstaller to get ROR installed on Windows.. everything was going great(rake db:create/migrate and console working as expected) until I started the server, webrick starts but the welcome page never loads, no errors are displayed at all it just sits there forever, I looked at the logs and there are no errors there either Here is my configuration Windows 7 Rails 3.0.4

If my Rails server has been sitting idle for a while, it does not respond to new requests. What is the best way to troubleshoot something like that. I am using Rails 3.0.7 in development. -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to