parking_manage_system/app/Services/ParkingLicensePlateService.php

<?php

namespace App\Services;

use App\Models\ParkingLicensePlate;
use Exception;
use Illuminate\Database\Eloquent\Builder;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Support\Facades\DB;

class ParkingLicensePlateService
{

    /**
     * @var OperationLogService
     */
    private OperationLogService $logService;

    /**
     * 构造函数
     * @param OperationLogService $logService
     */
    public function __construct(OperationLogService $logService)
    {
        $this->logService = $logService;
    }

    /**
     * 创建车牌号码
     * @param array $data
     * @return Model|Builder
     * @throws Exception
     */
    public function createModel(array $data): Model|Builder
    {
        try {
            DB::beginTransaction();

            if (ParkingLicensePlate::query()->where('number', $data['number'])
                ->exists()
            ) {
                throw new Exception(__('service.license_plate.number_exists'));
            }

            $model = ParkingLicensePlate::query()->create([
                'number'        => $data['number'],
                'space_type_id' => $data['space_type_id'],
                'created_at'    => get_datetime()
            ]);

            $this->logService->logCreated($model, '创建车牌号码');

            DB::commit();
            return $model;
        } catch (Exception $e) {
            DB::rollBack();
            throw $e;
        }
    }

    /**
     * @param array $data
     * @param int   $id
     * @return Model|Builder
     * @throws Exception
     */
    public function updateModel(array $data, int $id): Model|Builder
    {
        try {
            DB::beginTransaction();

            // 验证
            $existsWhere = [
                ['number', '=', $data['number']],
                ['id', '<>', $id]
            ];
            if (ParkingLicensePlate::query()->where($existsWhere)->exists()) {
                throw new Exception(__('service.license_plate.number_exists'));
            }

            // 更新
            $model = ParkingLicensePlate::query()->findOrFail($id);
            $oldValues = $model->toArray();

            $model->update([
                'number'     => $data['number'],
                'updated_at' => get_datetime()
            ]);

            $this->logService->logUpdated($model, $oldValues, '更新车牌号码');

            DB::commit();
            return $model;
        } catch (Exception $e) {
            DB::rollBack();
            throw $e;
        }
    }

    /**
     * @param $id
     * @return bool
     * @throws Exception
     */
    public function deleteModel($id): bool
    {
        try {
            DB::beginTransaction();

            $model = ParkingLicensePlate::query()->findOrFail($id);

            $this->logService->logDeleted($model, '删除车牌号码');

            $model->delete();

            DB::commit();
            return true;
        } catch (Exception $e) {
            DB::rollBack();
            throw $e;
        }
    }

}