similar to: tired of using defined? all the time

Hi everyone, I''m having trouble actually running mysql queries. I can connect to the database, I think, but when a query gets run the following shows up in my log: SQL (0.000000) Mysql::Error: Lost connection to MySQL server during query: SHOW TABLES Any suggestions? Thanks! Daniel Higginbotham

I''m pretty much done with a project I''ve been developing to learn Rails, http://www.happycarpools.com . If you could take a look, that''d be awesome! Feedback would be even more awesome! Probably the coolest thing about making this has been seeing how Rails does *so much* and hardly has any superfluous parts, if any. There are so many features that I initially

I have two computers both of which are running Windows XP SP2. R 1.9.1 runs just fine on one but not the other. Both installations of R came from the same installation package. When I click on the desktop icon an hourglass shows up then disappears. Similarly, if I start RGUI the process shows up in task-manager then abruptly disappears. Interestingly, I can access R in Excel via the D(COM) Server

Hello everyone, In my model, I have def leave_at_formatted leave_at.strftime("%I:%M %p") end I was wondering if there were any way to define to_s for leave_at in order to get the same result? Thanks!

I''m looking through the api for something like find(:all, :distinct => true) so that multiple instances of a row won''t be returned - is this possible? Thanks!

I have been reading about testing in RoR for what seems like hours now in search of the answer to what is probably a simple problem. Where is the best place to test the second action explained below? I have a controller (NetworkingController) with a method (create_network_segment) that makes use of two models (NetworkSegment and NetworkIpaddress). This particular method does two actions: 1.

I got many answers to the question I asked below , and I thank you all. Several of you told me to use ->> but told also that "it is not a recommendable way of items manipulating in R". I don't really understand what it exactly means : 1) does it mean it's not a very good way of programming , a dangerous way of programming because the variable a can be modified ? , etc Or

Instead of having it highlight the bad fields when you enter in a record that fails validation, is there a way to make it do an action? I''m looking for something like this: validates_uniqueness_of :user_id,:url => {:controller => "headline", :action => "index"} so that on failing the uniqueness check, it would go to the headline controller. --

Hi All, I''m developing a Rails app with Rails v1.1.4, but when I upload it to Dreamhost and try to serve it with dispatch.cgi, I get the error "Cannot find gem for Rails =1.1.4". However, I have installed the 1.1.4 gem in my home directory and set GEM_PATH to look there; additionally, rake throws no errors and "rails -v" displays "Rails 1.1.4". Any

Hi everyone, Is there a time select helper which uses a 12 hour clock rather than a 24 hour one? Also, does anyone know if :discard_year actually works in datetime_select now, or how I could find this out? Thanks! Daniel

Hi everyone, I''m having trouble uploading some files. I''ve set up a simple action whose view looks like: <%= start_form_tag({:action => ''handle_file_test''}, {:multipart => true}) %> <label for="file">File to Upload</label> <%= file_field_tag "file" %> <%= submit_tag %> <%= end_form_tag %>

I''m trying to build a selection list which I have done in various ways but this one is new to me. I have a ''facilities'' table which has all the outpatient facilities but I need to add ''Float'' and ''Main Office'' which I don''t want to add to the ''facilities'' table itself. so I figure I can add these to an

Hi everyone, I''m trying to use ajax to update the selected value of a select element. Here''s what I have so far: function RailsModel(model_name) { this.model_name = model_name; } RailsModel.prototype.getAttributeById = function(attribute, id) { Ajax.Request(''/models/get_attribute_by_id/'' + this.model_name + ''/'' + attribute +

In my view code, I have <%= datetime_select "in_out", "time_in" %> which returns in params :in_out: !map:HashWithIndifferentAccess time_in(1i): "2006" time_in(2i): "6" time_in(3i): "12" time_in(4i): "20" time_in(5i): "24" and I want to save that datetime to a column in the db... if

Hi everyone, Does Ruby support variable variables like PHP (http://www.php.net/manual/en/language.variables.variable.php)? Or do I have to use eval, like some_hash.each_pair{|key, pair| eval "#{key} = #{value}" } Or is there some other way? I''m actually trying to figure this out in order to use ez_where to create its conditions from a hash, so if this isn''t even

Hopefully this isn''t completely inappropriate, but lately I''ve been curious about what books people have found most helpful in their development as programmers. If one of the icons like Dave Thomas, DHH, Mike Clark, Andy Hunt et al could weigh in that''d be awesome :) Here are some of my favorites: Refactoring, Martin Fowler Mastering Regular Expressions, Friedl

Hi everyone, I''ve been working on some code which will take params and turn them into a WHERE clause for the :conditions option in finder methods. So far I''ve been able to do some very simple text matching. I''d like to be able to support ranges, and then go from there (in fact I''ve added code for date ranges but I''m embarrassed of it so I

Hi, I am looking for a solution to use ajax.request object. Return response text will be in xml format and I like to know how to parse that xml information, so that I can put those info into the "span" or "div" tags of my html page. Is there any easy way to parse that xml info using prototype library? Thanks, kevin. -- Posted via http://www.ruby-forum.com/.

I''m using Ajax.Updater to update a select element, and have just discovered that IE doesn''t like having its innerHTML set. I figure instead of a bunch of option tags I can return JSON and parse it to add the options, but I''m not quite sure of the best way to do this.... or any way to do it really :) Could someone point this out to me? Or am I using a totally antiquated

The hmm_mirror_ops callback function sync_cpu_device_pagetables() passes a struct hmm_update which is a simplified version of struct mmu_notifier_range. This is unnecessary so replace hmm_update with mmu_notifier_range directly. Signed-off-by: Ralph Campbell <rcampbell at nvidia.com> Cc: "Jérôme Glisse" <jglisse at redhat.com> Cc: Jason Gunthorpe <jgg at mellanox.com>