首先,我正在使用什么:
- 共享点 2007
- JavaScript
- CAML 查询
- 标准网络服务 (_vti_bin/lists.asmx)
我根据某些条件从列表中选择一个或多个项目。我得到这些物品,并对它们执行另一个条件。如果满足条件,我想碰撞该项目,意思是:将“修改”列更改为当前日期/时间,但不应更改任何值。
这可能吗?如果是这样,如何做到这一点?
提前致谢!
首先,我正在使用什么:
我根据某些条件从列表中选择一个或多个项目。我得到这些物品,并对它们执行另一个条件。如果满足条件,我想碰撞该项目,意思是:将“修改”列更改为当前日期/时间,但不应更改任何值。
这可能吗?如果是这样,如何做到这一点?
提前致谢!
我已经不得不做同样的事情了。虽然我找不到代码,但我找到了那个帮助我的帖子。它是用 C# 编写的,但很容易适应 javascript:
public void Test()
{
string webUrl = "http://myserver";
string listName = "docs";
Lists.ListsSoapClient listsClient = this.GetListsClient(webUrl);
// 1st a call to Lists.GetList - we need the list's version - it is returned in the Version attribute
XElement listData = XElement.Parse(listsClient.GetList(listName).OuterXml);
string listID = listData.Attribute("ID").Value;
string version = listData.Attribute("Version").Value;
// in the updateFields parameter of Lists.UpdateList the full schema of the fields should be provided
string updateFields = @"<Fields>
<Method ID='1'>
<Field ID='{28cf69c5-fa48-462a-b5cd-27b6f9d2bd5f}' ColName='tp_Modified' RowOrdinal='0' ReadOnly='FALSE' Type='DateTime' Name='Modified' DisplayName='Modified' StorageTZ='TRUE' SourceID='http://schemas.microsoft.com/sharepoint/v3' StaticName='Modified' FromBaseType='TRUE' Version='4' ShowInNewForm='FALSE' ShowInEditForm='FALSE' />
</Method>
<Method ID='2'>
<Field ID='{8c06beca-0777-48f7-91c7-6da68bc07b69}' ColName='tp_Created' RowOrdinal='0' ReadOnly='FALSE' Type='DateTime' Name='Created' DisplayName='Created' StorageTZ='TRUE' SourceID='http://schemas.microsoft.com/sharepoint/v3' StaticName='Created' FromBaseType='TRUE' Version='4' ShowInNewForm='FALSE' ShowInEditForm='FALSE' />
</Method>
</Fields>";
XmlDocument doc = new XmlDocument();
doc.LoadXml(updateFields);
// Lists.UpdateList: set fields to not read-only
XElement result = XElement.Parse(listsClient.UpdateList(listID, null, null, doc.DocumentElement, null, version).OuterXml);
// get updated version from the result XML - for the second call of Lists.UpdateList
version = result.Elements().Where(el => el.Name.LocalName == "ListProperties").First().Attribute("Version").Value;
// prepare the XML for the list item update
string updateDates = @"<Batch OnError='Continue'>
<Method ID='M0' Cmd='Update'>
<Field Name='ID'>1</Field>
<Field Name='FileRef'>/docs/zt.txt</Field>
<Field Name='Modified'>2010-04-04T22:17:00Z</Field>
<Field Name='Created'>2010-01-01T00:05:00Z</Field>
</Method>
</Batch>";
doc.LoadXml(updateDates);
// Lists.UpdateListItems: update Created & Modified
result = XElement.Parse(listsClient.UpdateListItems(listID, doc.DocumentElement).OuterXml);
// revert the fields' schema
updateFields = updateFields.Replace("ReadOnly='FALSE'", "ReadOnly='TRUE'");
doc.LoadXml(updateFields);
// Lists.UpdateList: set fields back to read-only
result = XElement.Parse(listsClient.UpdateList(listID, null, null, doc.DocumentElement, null, version).OuterXml);
}
基本上,我们必须在尝试更新之前将字段的只读属性设置为 false,并在更新后将该属性设置回 true。