排除media_url为null字符串的

app/Model/MediaModel.php

@@ -274,8 +274,9 @@ class MediaModel extends Eloquent
             $id = MediaModel::insertGetId($data);
 
             //处理封面图片以及分辨率
+            if ($request->media_url != "null"){
                 self::getScreeShotInfo($media_id);
-
+            }
             LogModel::addlog(["添加媒资信息" => $data, ['媒资ID为：=> ' . $id]]);
         } catch (\Exception $exception) {
             throw new DatabaseException($exception->getMessage());
@@ -365,7 +366,9 @@ class MediaModel extends Eloquent
                 throw new \Exception("更新失败");
             }
             //处理封面图片以及分辨率
+            if ($request->media_url != "null"){
                 self::getScreeShotInfo($id);
+            }
             LogModel::addlog(["更新媒资信息=>" . $id, $data]);
 
         } catch (\Exception $exception) {
@@ -1152,7 +1155,8 @@ class MediaModel extends Eloquent
             $match = [
                 'status' => "1",
                 "screen_shot" => null,
-                "media_audio" => ["\$ne" => 'audio']
+                "media_audio" => ["\$ne" => 'audio'],
+                "media_url" => ["\$ne" => "null"],
             ];
 
             if (isset($request->media_id) && !empty($request->media_id)) {
@@ -1170,6 +1174,7 @@ class MediaModel extends Eloquent
             }
 
             $media = MediaModel::where($match)->first();
+            //处理封面图片以及分辨率
             self::getScreeShotInfo($media["_id"]);
 
         } catch (\Exception $exception) {