![]() The final parameter is the id of the book that is passed via the params object. The second parameter is what action is called when the link is clicked. The first parameter of link_to is the text to be displayed between the tags. ![]() The code between the tags is a link_to method call. This object was created in controller inside the list method. blank? method returns true if the array is empty, and false if it contains any objects. The code to be executed is to check whether the array has any objects in it. These are the current books in our system There are not any books currently in the system. You should see a blank page if you don't, check the spelling of your file and make sure that it is exactly the same as your controller's method. After creating and saving the file, refresh your web browser. Creating View File for list MethodĬreate a file called using your favourite text editor and save it to app/views/book. While executing these views, simultaneously check these actions are applicable into the database or not. So let's create view files for all the methods we have defined in the book_controller.rb. Each method you define in the controller needs to have a corresponding erb file, with the same name as the method, to display the data that the method is collecting. Rails let's you know that you need to create the view file for each new method. Each of these subdirectories was created automatically when the same-named controller was created with the generate script. If you look in the app/views directory of the library application, you will see one subdirectory for each of the controllers, we have created: book. A Rails View is an ERb program that shares data with controllers through mutually accessible variables.
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