[5.2] Add where time support query

[johnpaulmedina]

Added the ability to query with whereTime support for MySQL
#14364

[johnpaulmedina]

If this works well how can we push this to 5.3 release?

[fernandobandeira]

5.3 receive merges from the whole 5.2 branch, also 5.2 receives from 5.1 then eventually if this get into 5.2 it will go to 5.3 too...

[jmarcher]

I think that you need to make a few tests to ensure everything works properly

[tillkruss]

@johnpaulmedina Could you provide 1-2 tests?

[johnpaulmedina]

It was already merged in. I actually use this on production myself and shared it. I will keep in mind to provide the tests with other contributions next time.

I use it for statistics and metrics on agents in a call center between date x and date y BUT only between time x and time y of each of those dates in the range.

I didn't really write this code. It technically already exist in Laravel framework for whereDay whereYear whereMonth whereDay... all I did was duplicate one of those and change the MySQL function it calls to time().

MyEloquentModel::whereDate('created_at','>=','2016-07-01')
               ->whereDate('created_at','<=','2016-07-28')
               ->whereTime('created_at','>=','22:00:00')
               ->get();

Essentially it is leveraging the database time() function to get things between two dates but only where the timestamps time is greater than 22:00 hours.