Ruby on Rails Generating Views
Is there a way to generate the views separately using the rails generate command? I would also be willing to install a gem to accomplish that task f one exists. Basically the scaffolding command gives me too much and I would rather code my control开发者_StackOverflowler by hand. However, writing the index view with a table for the records would not be very efficient.
You can generate the controller and the view using the controller generator.
rails g controller controllername new create
This will create actions new
and create
with their corresponding views.
You still need to set up your routes manually with this.
One particular situation is when you want to add a new view to an existing controller.
In that case, just use the regular command, but be careful to say 'n'
every time prompted in order to not overwrite existing files.
For example, adding a view called 'invite'
to an existing controller named 'projects'
:
smith@ubuntuSrv16DEV4:~/railsapps/project_manager$ rails -v
Rails 5.1.4
smith@ubuntuSrv16DEV4:~/railsapps/project_manager$ rails generate controller projects invite
Running via Spring preloader in process 46253
conflict app/controllers/projects_controller.rb
Overwrite /home/smith/railsapps/project_manager/app/controllers/projects_controller.rb? (enter "h" for help) [Ynaqdh] n
skip app/controllers/projects_controller.rb
route get 'projects/invite'
invoke erb
exist app/views/projects
create app/views/projects/invite.html.erb
invoke test_unit
conflict test/controllers/projects_controller_test.rb
Overwrite /home/smith/railsapps/project_manager/test/controllers/projects_controller_test.rb? (enter "h" for help) [Ynaqdh] n
skip test/controllers/projects_controller_test.rb
invoke helper
identical app/helpers/projects_helper.rb
invoke test_unit
invoke assets
invoke coffee
identical app/assets/javascripts/projects.coffee
invoke scss
conflict app/assets/stylesheets/projects.scss
Overwrite /home/smith/railsapps/project_manager/app/assets/stylesheets/projects.scss? (enter "h" for help) [Ynaqdh] n
skip app/assets/stylesheets/projects.scss
smith@ubuntuSrv16DEV4:~/railsapps/project_manager$
the first part is the name of the model/controller, the second part are the actions.
As previously mentioned by sameers there was post that showed how to just generate a the views. It will create all the views for your model using the rails default templates which is very handy.
If like me you want something a little more customizable you can achieve the following.
You can create your own generator so you have something like this.
rails generate view NAME VIEW [options]
To achieve this you need to do the following.
rails generate generator view
This will generate a few files for you in lib/generators/view/ folder.
Open the view_generator.rb file and add the following code.
class ViewGenerator < Rails::Generators::Base
source_root File.expand_path('templates', __dir__)
argument :name, type: :string
argument :action, type: :string
def generate_view
template "#{file_name}.html.erb", "app/views/#{folder_name}/#{file_name}.html.erb"
end
private
def folder_name
name.underscore
end
def file_name
action.underscore
end
def type
name.titleize.singularize
end
def down_type
name.downcase.singularize
end
def render_form
"<%= render 'form', #{down_type}: @#{down_type} %>"
end
def render_link_back
"<%= link_to 'Back', #{folder_name}_path %>"
end
end</pre>
Next you need to create the file that we are using actual template used in generate_view method.
Using the action new as example, create a filelib/generators/view/new.html.erb and add the following.
<h1>New <%= type %></h1>
<%= render_form %>
<%= render_link_back %>
Customize the template view as much as you want. You will need to add the _form.html.erb as well. Add any additional variables and logic in your view_generator.rb file and you are done.
It's more work but can be worth it if you find yourself generating similar views all the time.
Best use case I can think of for this approach is if you white label your platform and need to generate multiple files for a clients profile.
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