Add validations to these models such that...

1. All authors have a name
2. No two authors have the same name
3. Author phone numbers are exactly ten digits
4. All posts have a title
5. Post content is at least 250 characters long
6. Post summary is a maximum of 250 characters
7. Post category is either Fiction or Non-Fiction This step requires an inclusion validator, which was not outlined in the README lesson. You'll need to refer to the Rails guide to look up how to use it.

Finally, add a custom validator to Post that ensures the title is sufficiently clickbait-y. If the title does not contain "Won't Believe", "Secret", "Top [number]", or "Guess", the validator should add a validation.

Use the Custom methods style of validator found in the Rails documentation.

View ActiveRecord Validations Lab on Learn.co and start learning to code for free.