Question

我创建了一个循环循环以删除 SP Services 的 SharePoint 列表中的项目。我放了一个5 秒的超时; 但出于某种原因, 它只一次删除 2 个, 然后执行等待而不是删除批次, 然后重复此函数。

请参阅我的代码如下:

<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.5/jquery.min.js"></script>
<script src="http://cdnjs.cloudflare.com/ajax/libs/jquery.SPServices/0.7.1a/jquery.SPServices-0.7.1a.min.js"></script>
<script type="text/javascript">

    $(document).ready(function () {
        $intStart = 1;
        $intCount = 10;
        $intEnd = 40;

        $("input[class= buttonpush ]").click(function () {
            var looper = function () {
                if ($intStart < $intCount && $intStart < $intEnd) {
                    $().SPServices.SPUpdateMultipleListItems({
                        webURL: "http://widgettest",
                        listName: "TestList",
                        CAMLQuery: "<Query><Where><And><Gt><FieldRef Name= ID  /><Value Type= Counter >" + $intStart + "</Value></Gt><Lt><FieldRef Name= ID  /><Value Type= Counter >" + $intCount + "</Value></Lt></And></Where></Query>",
                        batchCmd: "Delete",
                        valuepairs: [],
                        debug: false,
                        completefunc: function (xData, Status) {
                            $intStart = $intStart + 5;
                            $intCount = $intCount + 5
                            setTimeout(looper, 5000);
                        }
                    });
                }
                else { 
                }
            }
            looper();
        });
    });

</script>

Answer 1

OK, 既然您显示初始呼叫 loooper () () >, 逻辑似乎没有问题。 loooper () 应该运行8次, 直到 $intStart 等于41 。这些是您可能得不到您所期望的连续循环器运行次数( ) 多少的原因 :

You get an error from $().SPServices.SPUpdateMultipleListItems() and completeFunc is not executed like you are expecting.
Something else in your code is manipulating the values of the global variables $intStart, $intCount or $intEnd so they get changed accidentally while you are running and thus the loop doesn t run as many iterations as expected.
You get a javascript exception somewhere during the running of looper() that causes execution to stop.

要调试此选项, 请在调用 concolole. log () 语句前先插入一个独有的 concole. log () 语句。 SPSPervitss. SP Update MultiList Litters () 和另一个在 < code > completefulFunc 中的语句, 以便您在停止前能准确知道它取得多少进展。



关于该守则的其他意见如下:


$intStart is always less than $intCount since it starts less and both are incremented by 5 so you don t need that part of the if statement.
It is not customary to preceded javascript variables with a $ sign unless you are connoting some special kind of variable.  That is not the case here and just impedes the readability of the javascript to someone familiar with javascript.
Your variables $intStart, $intCount or $intEnd should probably not be global variables and in all cases should not be implicitly declared or accidentally declared globals.  If you mean for them to be globals, then declare them as globals in the global scope using var.  If you mean for them to be local to some scope, then declare them in that scope.
Because your variables are global and are only initialized one at document.ready() time, your button push will only work the first time.  It will never do anything when pushed a second time.
Your code is not protected from the user pushing the button again while looper() is running (this will cause duplicate requests to be launched).


您的 CAML 查询将会是前两次 :

<Query>
    <Where>
        <And>
            <Gt>
                <FieldRef Name= ID  />
                <Value Type= Counter >1</Value>
            </Gt>
            <Lt>
                <FieldRef Name= ID  />
                <Value Type= Counter >10</Value>
            </Lt>
        </And>
    </Where>
</Query>"    

<Query>
    <Where>
        <And>
            <Gt>
                <FieldRef Name= ID  />
                <Value Type= Counter >6</Value>
            </Gt>
            <Lt>
                <FieldRef Name= ID  />
                <Value Type= Counter >15</Value>
            </Lt>
        </And>
    </Where>
</Query>"    


这在我看来不正确。 第一次, 您要求处理 & gt; 1 & amp; & amp; & lt; 10. 第二次, 您要求处理 & gt; 6 & amp; & pl; 15 。

第二次不应该是 & gt; 9 & amp; & amp; & lt; 18 来获得尚未处理的新文件吗?

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