Allow revision data overload

[antonioribeiro]

This change will allow us to have our own database schema (I need to add two other columns to the table) and by overloading the methods this way:

<?php

namespace App\Models\Revisions;

trait RevisionableTrait
{
    /**
     * @param $key
     * @return array
     * @throws \Exception
     */
    protected function makeRevision($key)
    {
        if ($this->table == 'users')
        {
            $user_id = $this->id;
        } else {
            $user_id = $this->user_id;
        }

        $study_id = ($study = ActiveStudy::get()) ? $study->id : null;

        return [
            'changed_user_id'   => $user_id,
            'study_id'          => $study_id,

            'revisionable_type' => $this->getMorphClass(),
            'revisionable_id'   => $this->getKey(),
            'key'               => $key,
            'old_value'         => array_get($this->originalData, $key),
            'new_value'         => $this->updatedData[ $key ],
            'user_id'           => $this->getSystemUserId(),
            'ip_address'        => request()->getClientIp(),
            'created_at'        => new \DateTime(),
            'updated_at'        => new \DateTime(),
        ];
    }
}

<?php

namespace App\Models\Revisions;

use App\Models\Base\Model;
use Venturecraft\Revisionable\RevisionableTrait as VenturecraftRevisionableTrait;

abstract class RevisionableModel extends Model
{
    use VenturecraftRevisionableTrait;

    use RevisionableTrait {
        RevisionableTrait::makeRevision insteadof VenturecraftRevisionableTrait;
    }
}

[stierler]

Sorry for delay in merging this in. There are a few other places that require the function to be called (ie. postCreate). I will update these when merged

[antonioribeiro]

@astierler, just made all the changes to support it. You just have to review them now :)
Thank you