Create() method on pivot does not update ID

[elb98rm]

• Laravel Version: 5.8
• PHP Version: 7.2
• Database Driver & Version: MySQL 5.7

Description:

The eloquent create() method does not update the id of a Pivot object.
It should as there are some circumstances (such as complex duplication) where this manual approach is required.

Note 1: Pivots are not JUST joining table A to B. Often it's joining A to B AND instance data about that join. This is where the basic attach/sync functionality can be insufficient in some cases (even if it is valid 90% of the time)

Note 2: The same result can also be manually achieved using the db/table method.
However, this may require a "reload" as the actual Pivot object also has useful methods and properties.

Steps To Reproduce:

Create a Pivot object within the system, mapped to a database such as:

• class GenericPivot extends Pivot

Then wherever you are testing from, attempt to

$generic_pivot = GenericPivot::create([ .. ]);
dd($generic_pivot->id)

You should get a null response, where it should return the id.

[staudenmeir]

Override the $incrementing property in your pivot model:

class GenericPivot extends Pivot
{
    public $incrementing = true;
}

[elb98rm]

That solves the issue. Excellent knowledge.