[9.x] Allow eloquent whereNot() and orWhereNot() to work on column and value

[shadoWalker89]

Hi,

This PR #41096 added whereNot() and orWhereNot() to the eloquent query builder and query builder.

The PR allows to apply a where not on a group of wheres but does not allow to do something like this

$query->whereNot('role', 'admin'); // WHERE NOT role = 'admin'

This PR adds that (for both whereNot() and orWhereNot() ) while it also keeps the ability to use a where not on grouped wheres as well.

It will keep the same method signature developers are used to when using where() and orWhere() by allowing to specify and $operator and $column variables

If this PR is merged now, it will be a good thing since the Original PR was not yet tagged in any new release.

[taylorotwell]

Ah - didn't see this until I tagged - but still probably not a big deal to merge it into 9.x since it just came out.

[deleugpn]

Is whereNot('role', 'admin') the same as where('role', '<>', 'admin')? I really like that whereNot

[shadoWalker89]

@deleugpn it will use the NOT keyword to negate the condition. See the code comment in the code example in the PR description.
In the end both will have the same effect on your query

[taylorotwell]

How does this address: #41096 (comment)

[shadoWalker89]

How does this address: #41096 (comment)

As mentioned in the MySQL documentation https://dev.mysql.com/doc/refman/8.0/en/operator-precedence.html the comparison operators have higher precedence then the NOT keyword which means we don't need to wrap a {operator} b within parentheses.

This is a very simple example to demonstrate that.

https://www.db-fiddle.com/f/hZTgE1x2hyT1ksx4CNDqnM/2