修复视频删除成功，但还是显示的问题

app/admin/view/business_school/edit_content.html

@@ -61,8 +61,7 @@
                     <div class="upload-image-elem"><a class="add-upload-video"> + 上传视频</a></div>
                 </div>
             </div>
-
-            <div id="video-block" {if condition="$detail.video"} style="display: block" {/if}>
+            <div id="video-block" {if condition="$detail.video"} style="display: block" {else} style="display: none" {/if}>
                 <div class="del-video-btn" style="visibility: inherit">x</div>
                 <video id="businessSchoolVideo" controls src="{$detail.video}" style="width: 500px;height: 300px;"></video>
                 <input type="hidden" name="video" value="{$detail.video}">
@@ -228,9 +227,12 @@
                     url: '{:url("BusinessSchool/delVideo")}',
                     data:  {videoFile},
                     type: "post",
-                    success: function (res) {}
+                    success: function (res) {
+
+                    }
                 });
 
+                $("input[name='video']").val('')
                 $("#upload-video-block").show()
                 $("#video-block").hide()
                 $("#businessSchoolVideo").attr('src', '')

app/common/model/BusinessSchool.php

@@ -14,6 +14,8 @@ class BusinessSchool extends Models
 
     public function getVideoAttr($value)
     {
-        return Config::get('aliyunoss.domain') . $value;
+        if ($value) {
+            return Config::get('aliyunoss.domain') . $value;
+        }
     }
 }