我是离子的新手,我想上传图片,因此我使用"ng-file-upload"上传我的图片.但是只有当我删除"ion-content"时代码才能工作.我的模板是:

    <ion-view view-title="IQ Marketplace" ng-controller="SellCtrl">
    <ion-content class="padding" >
    <div class="list">
      <form   ng-submit="submitAds()" name="form" novalidate>


        <label class="item item-input">
          <span class="input-label">Picture</span>
      <input type="file" ngf-select ng-model="file" name="file" ngf-pattern="'image/*'"
        accept="image/*" >
        </label>
    <input type="submit" class="button button-block button-positive" value="Save" ng-disabled="form.$invalid">
    </form>

    </div><!--list-->

    </ion-content>
    </ion-view>

我的控制器是:

.controller('SellCtrl', function($scope,Upload) {

                  $scope.submitAds = function() {
                    console.log("ayman "+ $scope.file)
                      $scope.upload($scope.file);
                  };
                   $scope.upload = function (file) {
                      Upload.upload({
                          url: 'http://localhost/IQM/public/ads',
                          data: {file: file, 'username': $scope.test}
                      }).then(function (resp) {
                          console.log('Success ' + resp.config.data.file.name + 'uploaded. Response: ' + resp.data);
                      }, function …

您好我有"SQL查询",看看在上周的每个成员这样做,我创建的"SQL查询",它是工作很会工作的数量,但我想从ALISE改变week1或week2到的这个数据本周我的"SQL查询"是:

SELECT `staffID`,  
 SUM(if (created_at BETWEEN NOW()-INTERVAL 1 WEEK AND NOW(), 1,0)) 
 AS `week1`, 
 SUM(if (created_at BETWEEN NOW()-INTERVAL 2 WEEK AND NOW()-INTERVAL 1 WEEK, 1,0)) 
 AS `week2`, 
FROM tasks 
WHERE status ='done'
GROUP BY `staffID

我想成为这样的"sql查询",但mysql给我错误.那么,无论如何要解决这个问题？

SELECT `staffID`,  
 SUM(if (created_at BETWEEN NOW()-INTERVAL 1 WEEK AND NOW(), 1,0)) 
 AS NOW()-INTERVAL 1 WEEK, 
 SUM(if (created_at BETWEEN NOW()-INTERVAL 2 WEEK AND NOW()-INTERVAL 1 WEEK, 1,0)) 
 AS NOW()-INTERVAL 2 WEEK, 
FROM tasks 
WHERE status ='done'
GROUP BY `staffID

sql给我这条消息:

1064 …

我有两列其中一列用于foreign_ID,第二列用于表中的local_ID,如果foreign_ID有数字,local_ID将为空值,相反,如果local_ID有数字,则foreign_ID具有空值,我可以将两列做成作为一列？,这意味着如果foreign_ID有数字,它将显示该值,或者如果本地具有它将显示的值.

foreign_ID |local_ID
---------------------
null       | 1
1          | null
2          | null

在视野中我想成为

user |
-------
  1
  1
  2

当我尝试将这个"(| {|;)"正则表达式转换为字符串时,Java给了我这个例外:

Exception in thread "main" java.util.regex.PatternSyntaxException: Illegal repetition near index 2
( |{|;)
  ^

我该如何解决？