dcat-admin multipleImage实现多图关联上传

一时失言乱红尘 2023-01-23 11:51 52阅读 0赞

**模型关联**

class Food extends BaseModel
    { 
        use HasDateTimeFormatter;
        use SoftDeletes;
    
        public function images(): \Illuminate\Database\Eloquent\Relations\HasMany
        { 
            return $this->hasMany(FoodImage::class, 'food_id', 'id');
        }
    }

class FoodImage extends Model
    { 
        use HasDateTimeFormatter;
    
        protected $table = 'food_images';
    
        protected $fillable = ['path', 'food_id'];
    
        const UPDATED_AT = null;
    
        public function food()
        { 
            return $this->belongsTo(Food::class, 'id', 'food_id');
        }
    }

**表单**

$form->multipleImage('images')->sortable()->compress(['width' => 750, 'quality' => 90,])->uniqueName()->saveAsString()
                    ->saving(function ($value) use ($form) { 
                        if ($form->isEditing() && request()->filled('_file_del_')) { 
                            // 编辑页面，删除图片逻辑
                            if (FoodImage::where('path', request()->input('_file_del_'))->delete()>0){ 
                                return $form->response()->success('删除成功');
                            }
                            return $form->response()->error('删除失败');
    
                        }else{ 
                            // 新增或编辑页面上传图片
                            if ($value) { 
                                $data = json_decode($value);
                                $model = FoodImage::whereIn('path', $data)->delete(); // 删除全部
                                $insert_data = [];
                                foreach ($data as $val) { 
                                    $insert_data[] = [
                                        'path' => $val,
                                        'food_id' => $form->model()->id,
                                        'created_at' => Carbon::now()->toDateTimeString()
                                    ];
                                }
                                \DB::table('food_images')->insert($insert_data); // 重新添加
                            }
                            return $form->response()->success('成功');
                        }
                    })->customFormat(function ($v) {  // 转换为显示的格式
                        if (! $v) { 
                            return;
                        }
                        return array_column($v, 'path');
                    });