similar to: ActiveRecord::Base.transaction - SystemStackError - stack level too deep:

Here is the schema that I am working with: courses -> courses_teachers <- teachers I want to ensure that a teacher is not assigned the same course more than once. In other words, if I''m in the courses_teachers table as teaching Spanish 101, if someone tries to add that same teacher/course combination to the table again, it will not be allowed. I thought I could use something

Right now in my view, I have a whole HUGE clump of <% if current_user %> and then <% if current_admin %> and then <% if current_teacher %> and then all that other stuff in my view. I have a ginourmous chunk of if and else statements in my views... is there a way to make it prettier? The if and else''s almost all have the same functions, expect for some minor changes.

This code: <p> <label for="resource_type">Type</label><br/> <%= select(:resource, :type, %w{ Web Data }, { :include_blank => true }) %> </p> Produces this error: TypeError in Resources#new Showing app/views/resources/_form.rhtml where line #6 raised: wrong argument type String (expected Module) Extracted source (around line

The following was posted on my blog at http://blog.inquirylabs.com. A friend of mine recently expressed interest in this code snippet, so I thought I''d send it out to anyone else who''s interested. This module makes it a lot easier to ''require'' javascript and cascading stylesheet dependencies inside your views or controllers. By

The recent refactoring didn't work properly for new smart pools, so I've cleaned jup the parameter handling for the various pool 'create' actions. Signed-off-by: Scott Seago <sseago at redhat.com> --- src/app/controllers/hardware_controller.rb | 5 +---- src/app/controllers/pool_controller.rb | 6 ++++-- src/app/controllers/resources_controller.rb | 6

I am trying to clean up unnecessary lines (even as I hack my way forward adding more garbage) I have two questions on lines I have trying to keep the database and session info reflecting changes: def associate_pupil_to_teacher @teacher = session[:teacher] @pupil = Pupil.find(params[:id]) @teacher.pupils << @pupil @teacher.save #Q1 session[:teacher] = @teacher #Q2 end #Q1 do i

Is there a way to get a list of all the classes available from the puppet master? I have 2 goals for this - one is documentation in a human readable form, and the other is potentially importing that data into dashboard. I did find some info on the rest API (http://docs.puppetlabs.com/guides/rest_api.html#resource-types ) but I can''t make any sense of the output from it. Thanks.

Adapt to the API changes in the newer versions of the Zend framework, in particular regarding: - strings handling - resources handling (used for the guestfs_h pointer) - iterating in hash maps - data types for function arguments Introduce helper macros to reduce greatly the amount of #if's all around the generated C code. --- generator/php.ml | 96

I''m trying to create a function that I can call in a manifest like this: $doc = doc(''apache::service'') In the function, I want it to actually find the filename for the ''apache::service'' class... from there, I''m going to run some code that will generate the puppet-doc in text format, and then return it in a variable. Ultimately this is so

puppet agent --verbose shows a verbose output of the changes done by puppet, such as: notice: /Stage[main]/Logstash::Config/Logstash::Configdir[agent]/File[/etc/logstash/agent/config]/owner: owner changed ''root'' to ''logstash'' notice: /Stage[main]/Varnish/Service[varnish]/ensure: ensure changed ''stopped'' to ''running''

Hi, looking for something that simple, but can''t find it. I got: outfile = File.open(''teams.txt'', ''wb'') CSV::Writer.generate(outfile) do |csv| for team in @teams csv << [team.id, team.name] end end outfile.close send_file "teams.txt", :filename => "teams.txt",:disposition =>

Previously, I posed the question pasted down below to the list and received some very helpful responses. While the code suggestions provided in response indeed work, they seem to only work with *very* small data sets and so I wanted to follow up and see if anyone had ideas for better efficiency. I was quite embarrased on this as our SAS programmers cranked out programs that did this in the blink

Let''s say I have three hypothetical MySQL tables: ? people, with columns id, gender, and source_id belongs_to :boys and :girls ? boys, with columns id and name has_many :people ? girls, with columns id and name has_many :people The gender column in people specifies which of the two source tables the source_id refers to. For example, if we have values: 1, boy, 1 in people,

Under the assumption that in these cases recurring faults aren''t a security issue and it can be expected that the drivers there are going to try to take care of the problem. Signed-off-by: Jan Beulich <jbeulich@suse.com> --- a/xen/drivers/passthrough/amd/iommu_init.c +++ b/xen/drivers/passthrough/amd/iommu_init.c @@ -625,6 +625,18 @@ static void parse_event_log_entry(struct

Hi, I have a controller called students_controller.rb From a view file i am calling the index method by the URL like, students_path(:format => :json) I have no problem in that. But i want to pass the teacher_id as the parameter. Like, students_path(:format => :json, :teacher_id => 5) The problem here is, the parameter is passing as, "amp;teacher_id" => "5" I

Hi All, Im trying to install but with no luck. Any idea what I did wrong ? ** mkdir -p /var/log/pe-console-auth ** touch /var/log/pe-console-auth/cas.log ** touch /var/log/pe-console-auth/auth.log ** chmod 770 /var/log/pe-console-auth ** chmod 660 /var/log/pe-console-auth/auth.log ** touch /var/log/pe-console-auth/cas_client.log ** chmod 660 /var/log/pe-console-auth/cas_client.log ** chown -R

Hello List, I created a self-referential many-to-many relationship (as described in the book Rails recipe #18), where I have a model that has many-to-many relationships with itself. In this case, it''s person who can become friends. The join table looks like this: mysql> select * from friends_people; +-----------+-----------+-----------+ | person_id | friend_id | confirmed |

Hello, I am working on the API of our webservice. API users need to authenticate some of their calls... When I am performig the call through Firefox, everything is fine as shown in the log : Processing OwnershipsController#new (for 67.207.118.174 at 2008-09-26 16:20:03) [GET] Session ID: BAh7BiIKKmxhc2hJQzonQWN0aW9uQ29udHJvbGxlcjo6Rmxhc2g6OkZsYXNo

This is part of a rails project. The following method is part of the Ams class (a rails model). I''m a bit unsure of the rspec/bdd way of testing this method. def persist_as_domains @current_domains.each do |d| dom = Domain.new dom.domain = d dom.source_id = 1 dom.at = Time.now dom.save end end The following is what came out when I tried to write my test. Notice

Is there a trick to validating select menus? I have this rule: validates_presence_of :title, :type :title is a text box and validates correctly but :type doesn''t: <p> <label for="resource_type">Type</label><br/> <select name="resource[type]" id="resource_type"> <option value=""