I'm new to rails and can't figure out this issue...
I have a controller
Admin::Blog::EntriesController
defined in app/controllers/admin/blog/entries_controller.rb
And I have a model called
Blog::Entry
defined in app/model/blog/entry.rb
When I try to access my model from the controller, I get a "uninitialized constant Admin::Blog::EntriesController::Blog" from this line:
#blog_entries = Blog::Entry.find(:all)
Clearly it is not finding the namespace correctly which is odd because according to what I have read, I have placed my model in the correct folder with the correct syntax.
Any ideas on how I can fix this?
Thanks
Try:
#blog_entries = ::Blog::Entry.find(:all)
It's currently looking for the wrong class. Using :: before Blog will force it to look from the top level.
It is now 2011 and we are in Rails 3.1 territory, but this issue still arises. I just ran into it with a namespaced controller referencing a non-namespaced model, but only when there were no rows for that model in the database!
Prefixing the model name with :: fixes the problem.
You can achieve a custom table name by using
set_table_name('foo')
at the top of your model.
As for multiple namespaces, you might be able to get away with using
polymorphic_path(#the_object)
to generate your urls as it does more basic inference (in my experience at least, maybe form_for uses it under the hood).
Yeah, from looking at the code form_for uses polymorphic_path under the hood.
Related
I am new to ruby on rails.
I am trying to get haml and wice_grid to work together. I am using this example as a model:
http://wicegrid.herokuapp.com/basics3
I get the error 'undefined local variable or method `show_code' for...'
In the file app/views/basics3/index.html.haml which you can see at the link above.
Am I missing a gem? In general, what is the best way to troubleshoot problems like this?
Thanks in advance-
Flex
EDIT: I found the definition for show_code. It's in a helper that I found in the unit tests for wice_grid.
https://github.com/leikind/wice_grid_testbed/blob/master/app/helpers/application_helper.rb
That said, I get more errors when I load it into my project. So the question becomes, how does the helper normally get included in my project?
show_code is a custom method created just for the example page you linked to. It just displays the code he has in his controller and his index and grid views. You don't need to call that method in your own application so just remove that line and you should be good.
I've been trying to set up Forem (a Rails 4 forum engine) using a guide and original docs.
Most things work, but I'm getting route errors. In my application.erb I have this route in a link_to:
topic_path(u)
The guide recommends that I preface this with my application name so my routes won't conflict with Forem's routes, so I did that as so:
H2le.topic_path(u)
(H2le is the application name set in application.rb)
However, this errors out:
"undefined method `topic_path' for H2le:Module"
Am I not setting the application name properly?
The problem was my being a Ruby newb and the guide I was following perhaps not being super explicit. It recommended to namespace the links like:
main_app.path
And I interpreted main_app to be a placeholder for my app name. Well, wrong. main_app is a built-in helper function, so it should literally just say main_app. I fixed this, and everything worked.
I want to override the default model file that's generated with rails generate model. I've created a template based on this file, but I can't figure out where to put it. Other answers seem to suggest /lib/templates/rails/model/model.rb or /lib/templates/rails/model/model_generator.rb, but neither of those do anything - I put the template in that location but when I run rails generate model ModelName it gets ignored.
Am I going about this the right way? Where should I put the template?
Solved: I wanted lib/templates/active_record/model/model.rb.
You probably need to put it in "lib/rails/generators/active_record/model/templates/model.rb". Here's the rails' default one: https://github.com/rails/rails/blob/master/activerecord/lib/rails/generators/active_record/model/templates/model.rb
I'm working with an existing Refinery CMS app for a client that has many controllers in many different places. If you are n00b to Refinery CMS, you can nest entire rails apps INSIDE the vender folder and they act like plugins. Its complex how it works and even worse a lot of the models/controllers are embedded in the refinery gem so a controller might exist but theres not file for it.
I wanted to extend a controller by following this example:
http://refinerycms.com/edge-guides/extending-controllers-and-models-with-decorators
which I did but my code was not firing. I did actually fix this so my problem is solved but in the future it would be useful to know what controller called this view I have. The view is tucked away in the gem HOWEVER a partial that it references was already overridden so I could throw something like:
<%= raise self.class.to_yaml %>
The problem with this I get the following error:
can't dump anonymous class: #<Class:0x000000061f5850>
Which isn't very helpful.
My question is this: How can I output the class name of the controller that calls any given view/partial ?
Thanks!
You can use params[:controller]
And params[:action] for current action
I'm a total noob to rails and I'm trying to understand a project I'm working on. I've found a method named cv_member_url in one of the views, but I can't for the life of me figure out where it is defined... One thing I do know about rails is that it is a very flexible language so it could be some sort of gem creating this method.
Any ideas where this method may have come from? (or better yet, how I can add others)
Thank you!
Do you have a model called CvMember? If so, the method is probably a named route for that model. See here for more info:
http://guides.rubyonrails.org/routing.html#paths-and-urls
To see all your named routes, you can run
rake routes
Those are named routes which are automatically defined based on what you have in routes.rb. *_url should be used in the controller, and *_path should be used in the views. Here's some more info from the official rails guide.
Assuming you can run this in development: You should put a breakpoint on it and step inside. Most likely it is dynamically defined or maybe in plugin.