similar to: How to solve "Marshal Data Too Short" error?

I want to create an internal admin view to display the output of "show variables" from mysql. What''s the best approach do this? For example, I''m doing something like this: @variables = ActiveRecord::Base.find_by_sql "show variables;" Then, I get stuff like this back (227 elements in @variables) in script/console: >> @variables[0] =>

It seems that using a join model that joins with two has_many''s will fail to generate proper SQL class StudentSemesterRecord < ActiveRecord::Base belongs_to :semester has_many :discipline_records, :through => :semester end class Semester < ActiveRecord::Base has_many :student_semester_records has_many :discipline_records end class DisciplineRecord <

How do you run an ad-hoc query that does not belong in any model? I thought it was something like ActiveRecord::connection.find("my query..."), but I can''t seem to find the documentation on it. I know I''ve seen it somewhere before, though. thanks, Jeff -- Posted via http://www.ruby-forum.com/.

Hi, For those who might not be aware, rjb is a killer gem for using java classes inside your rails app (or any ruby code). Check it out at: http://rubyforge.org/projects/rjb/ I was able to successfully use it in one of my apps that required some code that is only available in java. And it''s much nicer than having to compile a java app, then shell out using backticks, get back the return

Hello, I am running in to an error trying to run mongrel. The server starts but then trying to access any url in my application throws this error: calling Dispatcher.dispatch uninitialized constant RailsHandler::Dispatcher ./script/../config/../vendor/rails/activesupport/lib/active_support/dependencies.rb:477:in `const_missing''

This is apache/fcgi/rails/firefox. When using a rails app we have been experiencing sudden blank pages in the browser. We show an model "new object" page and start changing stuff and all of a sudden the page will be erased to blank! Any idea what could cause something like this? -- Posted with http://DevLists.com. Sign up and save your time!

Hello all! I have two views (list_1 and list_2) that show a list of users in two different ways. In the views for these actions there is a link to edit a specific user properties (edit_user). That works fine, except that when I change the user I want to go back to the view that originated the request and not to the default list (list_1). Can anyone help me? Best regards, Hugo -- Posted via

I''m seeing a "marshal data too short" error with an ActiveRecord store for my session data. Other posts say that this happens when the size of the session data exceeds the size of the "data" column in the sessions table. But my "data" column is a TEXT field so it seems unlikely that I could have blown it out. Has anyone else seen "marshal data too

One of my models has a column that is updated very frequently from a separate process, so it is important that when a record is saved in rails, this column should be left alone. In the update method of the controller I have: @record = MyModel.find(params[:id]) @record.update_attributes(params[:my_model]) params[:my_model] doesn''t have a reference to the column I''m talking

In my rails application, certain computers were having huge problems. There were certain pages that were exceptionally slow, even to the point of timing out. Other computers did not have a problem. I finally found that Firefox was the difference. When using Firefox on those computers it works fine. The slow pages were typically posting a form with a couple hundred fields. This behavior was

Hi, I''m trying to write a macro which defines methods. One of these should have a parameter, but I can''t get that to work. Something like: define_method("printstuff") do puts "blabla" end works fine. But, how do I use define_method to create something like: def printstuff(the_stuff) puts the_stuff end Thanks in advance.

I am using Ruby 1.8.2 on WinXP and am receiving a "Marshal Data Too Short" error. I havent been able to repeat the error as it seems to happen randomly in my rails program. However, the version of Ruby I''m using already has the file.binmode lines outlined in: http://wiki.rubyonrails.com/rails/pages/MarshalDataTooShort. If possible I''d like to avoid switching to active

Hello happy Railers, I used to develop with a local out-of-the-box Apache and load times were pretty slow (like a few seconds each page). "Well, it''s the price to pay for no compile / cache / etc..." I thought. Nonsense. Yesterday I installed SCGI, and now I''ve got the best of both worlds: rails development env uses my very latest modifications, while SCGI ensures I

I am using Ruby 1.8.2 on WinXP and am receiving a "Marshal Data Too Short" error. I havent been able to repeat the error as it seems to happen randomly in my rails program. However, the version of Ruby I''m using already has the file.binmode lines outlined in: http://wiki.rubyonrails.com/rails/pages/MarshalDataTooShort. If possible I''d like to avoid switching to

I have an application that is load balanced. I have a master database which I update once a day. Then I push the raw mysql files to all other servers so they are the same as the master. This works fine, but there are a few situations where I need all databases to update in real-time. What would be the best way to achieve this in rails? Here is an example of what I am trying to do. I want to

My completely empty model (no validation callbacks etc etc) takes an average of 0.05 seconds to create, at least according to Benchmark.realtime{200.times{Message.create(:from => "me@here.com", :message_type => ''email'', :subject => "hello", :body => "goodbye", :sent_at => Time.now)}}/200 That''s a little slower than

Hi Folks, Could you please comment on various PDF generators that one may use. Thanks. Lalit Send instant messages to your online friends http://au.messenger.yahoo.com -------------- next part -------------- An HTML attachment was scrubbed... URL: http://wrath.rubyonrails.org/pipermail/rails/attachments/20060221/8b319788/attachment.html

I had a statement that was generating a warning about parenthesise argument for future version. The interesting thing was it would crash the page with an input/output error on my production linux server, but worked fine in webbrick/windows. I finally tracked it down to it crashed when trying to print the warning to the console. If I kept the terminal open that I started the server on it would

Hi all, finally im starting with rails, i have a simple relationship has_many ans belongs_to that i dont now how to manage the update action, here are my models class Item < ActiveRecord::Base has_many :images end class Image < ActiveRecord::Base belongs_to :item end And my table structure: Items => id, title, desc Images => id, image, item_id ok, i have a number of

has_many.count does not seem to support an options hash like ActiveRecord::Base.count does. Example: >> AcademicProgram.find(:first).course_requirements.count :conditions => "courses.name LIKE ''a%''", :include => :course => 40 >> ap.ap_requirements.count :conditions => "courses.name LIKE ''a%''", :include =>