Workshop 5: Admiring the secenery Forms, AJAX screen layout and and mobile interfraces: To Do (RED team) Part A Viewing the action 8.:

Try Ruby code and HTML in the action view by using the <%....%> wrapper around the inserted Ruby code. Here are some snippets to try from workshop 4:



NOTE: in practise you normally perform calculations in the action (method) and pass the results to the view.

Workshop 5: Admiring the secenery Forms, AJAX screen layout and and mobile interfraces: To Do (RED team) Part A Viewing the action 7.:

Create and save a view in that directory by using a text editor to create a view called breathe.rhtml



Restart the WEBrick serve r and browse again at http://localhost:3000/mammals/breathe

Workshop 5: Admiring the secenery Forms, AJAX screen layout and and mobile interfraces: To Do (RED team) Part A Viewing the action 6.:

Start the WEBrick server and browse at http://localhost:3000/mammals/breathe where you will get a “missing template” message since it is missing a view for the breathe method.

Rails is trying to connect the breathe method action of the mammal controller to a view, by using the action’s name – breathe. This view template is created as breathe.rhtml and stored in the \projects\animals\views\mammal directory.

Workshop 5: Admiring the secenery Forms, AJAX screen layout and and mobile interfraces: To Do (RED team) Part A Viewing the action 5.:

Create an action by editing and saving the mammal_controller.rb class in projects\animals\app\controllers using your text editor to add the method below:

class MammalController< ApplicationController
def breathe
end
end

Workshop 5: Admiring the secenery Forms, AJAX screen layout and and mobile interfraces: To Do (RED team) Part A Viewing the action 4.:

Test the controller by starting the WEBrick server and navaigatibng the browser to http://localhost:3000/mammal Note how the controller name is appended to the end of the URL and that no action resulted because there are no controller methods.

Workshop 5: Admiring the secenery Forms, AJAX screen layout and and mobile interfraces: To Do (RED team) Part A Viewing the action 3.:

Create the controller to make the application do an action. This is under the controller-action/model-view structure.

Stop the WEBrick server each time you edit Ruby classes and then re-start or refresh the views you are testing. Use the Ruby command below:

>ruby script/generate controller Mammal

The mammal_controller.rb contains just a bare class description:

class MammalController< ApplicationController
end

and the ApplicationController class inherits from ActionController::Base class in the ActionController module under Rails.

Workshop 5: Admiring the secenery Forms, AJAX screen layout and and mobile interfraces: To Do (RED team) Part A Viewing the action 2.:

Running the application on localhost:3000 using the WeBrick ruby server (or Mongrel as alternative) and access via Web browser at http://localhost:3000/

Workshop 5: Admiring the secenery Forms, AJAX screen layout and and mobile interfraces: To Do (RED team) Part A Viewing the action 1.:

Create the Rails application framework in the projects folder: C:\InstantRails\...\projects\>rails animals