Refactored the models to follow DRY principle

[Azeezdot123]

Describe your changes :

I worked on the ..... because ... of the issue #181 Refactoring models to follow DRY principle this will enhance the readability of our Model code.

Type of change :

• [ ] Bug fix
• [ ] New feature
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)

Preview (Screenshots) :

If it is possible, please link screenshots of your changes preview !

Checklist:

• [ x] I have read the Code Of Conduct document.
• [ x] I have read the CONTRIBUTING document.
• [ x] I have performed a self-review of my own.
• [ ] I have tagged my reviewers below.
• [ ] I have commented my code, particularly in hard-to-understand areas.
• [ x] My changes generate no new warnings.
• [ ] I have added tests that prove my fix is effective or that my feature works.
• [ x] All new and existing tests passed.

Reviewers

@PraveenMalethia @abhivemp