Memoize batch on job

[nandi95]

On a job that is Batchable I normally check if the parent batch is cancelled or not before running any logic:

if (!$this->batch()?->cancelled()) {
    return;
}

But if I wanted to access the batch again, that would mean the implementation(eg database) would have to retrieve the batch again. Perhaps this can be memoized? I understand the job might be released back to the queue and re-serialised so that would have to get accounted for.

framework/src/Illuminate/Bus/Batchable.php

Lines 31 to 40 in 4247b59

	public function batch()
	{
	if ($this->fakeBatch) {
	return $this->fakeBatch;
	}
	if ($this->batchId) {
	return Container::getInstance()->make(BatchRepository::class)->find($this->batchId);
	}
	}

The alternative obviously is: $batch = $this->batch()