- The heart of your application lives in the
libdirectory. - This directory contains a file called
MyApp.pm. This file defines the namespace and inheritance that are necessary to make this a Catalyst application. It also contains the list of plugins to load application-specific configurations. These configurations can also be defined in themyapp.conffile mentioned previously. However, if the same configuration is mentioned in both the files, then the configuration mentioned here takes precedence. - Inside the
libdirectory, there are three key directories, namelyMyApp/Controller, MyApp/Model, andMyApp/View. Catalyst loads the Controllers, Models, and Views from these directories respectively.
Right now, there's one Controller called Root.pm. This will handle all root level (/) URLs. This is where the code that generates the welcome page is located.
Keep in mind that MyApp is just like any other namespace of a module. The application is created with whatever you passed as an argument to catalyst.pl when you created the application. Just like any other module, a namespace with double colons corresponds to subdirectories in the filesystem. For example, catalyst.pl MyCompany::HR::Timeslips would create the application with the namespace MyCompany::HR::Timeslips. Therefore, it will be represented in the filesystem as MyCompany/HR/ Timeslips.pm as the application is created within the lib directory when using catalyst.pl. The path on the filesystem from the root of your catalyst application will be lib/MyCompany/HR/ Timeslips.pm. Similarly, the other files/directories that are created will be lib/MyCompany/HR/Timeslips/Controller/.