perf: 预览图片尺寸的优化

app/Models/ProjectTaskFile.php

@@ -3,6 +3,7 @@
 namespace App\Models;
 
 use App\Module\Base;
+use Cache;
 
 /**
  * App\Models\ProjectTaskFile
@@ -19,6 +20,8 @@ use App\Module\Base;
  * @property int|null $download 下载次数
  * @property \Illuminate\Support\Carbon|null $created_at
  * @property \Illuminate\Support\Carbon|null $updated_at
+ * @property-read int $height
+ * @property-read int $width
  * @method static \Illuminate\Database\Eloquent\Builder|ProjectTaskFile newModelQuery()
  * @method static \Illuminate\Database\Eloquent\Builder|ProjectTaskFile newQuery()
  * @method static \Illuminate\Database\Eloquent\Builder|ProjectTaskFile query()
@@ -38,6 +41,11 @@ use App\Module\Base;
  */
 class ProjectTaskFile extends AbstractModel
 {
+    protected $appends = [
+        'width',
+        'height',
+    ];
+
     /**
      * 地址
      * @param $value
@@ -57,4 +65,50 @@ class ProjectTaskFile extends AbstractModel
     {
         return Base::fillUrl($value ?: Base::extIcon($this->ext));
     }
+
+    /**
+     * 宽
+     * @return int
+     */
+    public function getWidthAttribute()
+    {
+        $this->generateSizeData();
+        return $this->appendattrs['width'];
+    }
+
+    /**
+     * 高
+     * @return int
+     */
+    public function getHeightAttribute()
+    {
+        $this->generateSizeData();
+        return $this->appendattrs['height'];
+    }
+
+    /**
+     * 生成尺寸数据
+     */
+    private function generateSizeData()
+    {
+        if (!isset($this->appendattrs['width'])) {
+            $width = -1;
+            $height = -1;
+            if (in_array($this->ext, ['jpg', 'jpeg', 'gif', 'png'])) {
+                $path = public_path($this->getRawOriginal('path'));
+                [$width, $height] = Cache::remember("File::size-" . md5($path), now()->addDays(7), function () use ($path) {
+                    $width = -1;
+                    $height = -1;
+                    if (file_exists($path)) {
+                        $paramet = getimagesize($path);
+                        $width = $paramet[0];
+                        $height = $paramet[1];
+                    }
+                    return [$width, $height];
+                });
+            }
+            $this->appendattrs['width'] = $width;
+            $this->appendattrs['height'] = $height;
+        }
+    }
 }