I am new to symfony framework. Now I am customizing orangehrm to suit certain new requirements.

For example: Similar to Admin>Qualifications>skills menu, I need to create Admin>Qualifications>Category.I have made the menu modifications by editing index.php file.

The functionality for this new page is similar to 'Skill' page.But we need to use different database table. Orangehrm uses doctrine for database related operation. I am not at all familiar with doctrine either.

Could someone please give the instructions for implementing 'Admin>Qualifications>Category' function? It is very urgent and I think the process is also very simple (not sure).

Any help is appreciated.