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MergeCommand.php
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MergeCommand.php
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<?php
namespace App\Console\Commands\Discount;
use App\Console\Command;
/**
* Merge one discount (source) with another discount (target), and delete the source discount.
*
* This command re-associates the wallets that are discounted with the source discount to become discounted with the
* target discount.
*
* Optionally, update the description of the target discount.
*
* You are not allowed to merge discounts that have different discount rates.
*
* This command makes it feasible to merge existing discounts like the ones that are 100% and described as
* "It's us..", "it's us", "This is us", etc.
*
* Example usage:
*
* ```
* $ ./artisan scalpel:discount:merge \
* > 158f660b-e992-4fb9-ac12-5173b5f33807 \
* > 62af659f-17d8-4527-87c1-c69eaa26653c \
* > --description="Employee discount"
* ```
*/
class MergeCommand extends Command
{
/**
* The name and signature of the console command.
*
* @var string
*/
protected $signature = 'discount:merge {source} {target} {--description=}';
/**
* The console command description.
*
* @var string
*/
protected $description = 'Merge one discount in to another discount, ' .
'optionally set the description, and delete the source discount';
/**
* Execute the console command.
*
* @return mixed
*/
public function handle()
{
$source = $this->getObject(\App\Discount::class, $this->argument('source'));
if (!$source) {
$this->error("No such source discount: {$source}");
return 1;
}
$target = $this->getObject(\App\Discount::class, $this->argument('target'));
if (!$target) {
$this->error("No such target discount: {$target}");
return 1;
}
if ($source->discount !== $target->discount) {
$this->error("Can't merge two discounts that have different rates");
return 1;
}
foreach ($source->wallets as $wallet) {
$wallet->discount_id = $target->id;
$wallet->timestamps = false;
$wallet->save();
}
if ($description = $this->option('description')) {
$target->description = $description;
$target->save();
}
$source->delete();
}
}

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