我不确定问题的标题是否有意义，但可能会使用代码来帮助我解释它。
我有以下代码，但默认情况下不会在列表项值中返回sharepoint内容类型。
function getListItems(listId, camlQueryString, selectProperties){
var deferred = $q.defer();
var context = SP.ClientContext.get_current();
var web = context.get_web();
var list = web.get_lists().getById(listId);
var camlQuery = new SP.CamlQuery();
camlQuery.set_viewXml(camlQueryString);
var listItems = list.getItems(camlQuery);
//var includesString = "Include(ID,Title,AssignedTo, WorkflowOutcome, ApproverComments, FileRef, WorkflowItemId, Created, Modified)"; // + selectProperties.join(", ") + ")";
if(selectProperties) {
var includesString = convertSelectPropertiesToIncludesString(selectProperties);
context.load(listItems, includesString);
} else {
context.load(listItems);
}
context.executeQueryAsync(
function() {
$log.info("Successfully retrieved list item result");
deferred.resolve(listItems);
},
function(error, errorInfo) {
$log.warn("Retrieving list item result failed");
deferred.reject(errorInfo);
}
);
return deferred.promise;
}
我正在尝试转换此方法以获取相同数组值中的内容类型名称
function getListItemswithContentType(listId, camlQueryString, selectProperties){
var deferred = $q.defer();
var context = SP.ClientContext.get_current();
var web = context.get_web();
var list = web.get_lists().getById(listId);
var camlQuery = new SP.CamlQuery();
camlQuery.set_viewXml(camlQueryString);
var listItems = list.getItems(camlQuery);
//var includesString = "Include(ID,Title,AssignedTo, WorkflowOutcome, ApproverComments, FileRef, WorkflowItemId, Created, Modified)"; // + selectProperties.join(", ") + ")";
if(selectProperties) {
var includesString = convertSelectPropertiesToIncludesString(selectProperties);
context.load(listItems, includesString);
} else {
context.load(listItems);
}
context.executeQueryAsync(Function.createDelegate(this, SuccessHandler),Function.createDelegate(this, ErrorHandler));
return deferred.promise;
}
function SuccessHandler(result) {
listItemEnumerator = listItems.getEnumerator();
while (listItemEnumerator.moveNext()) {
oListItem = listItemEnumerator.get_current();
var CT = oListItem.get_contentType();
context.load(CT);
context.executeQueryAsync(
(function (contentobject) {
return function () {
var value = contentobject.get_name();
alert("VAL: "+value);
};
}(contentobject)),
function () {
alert("No Success");
}
);
}
}
function ErrorHandler(sender, args) {
alert('Request failed. ' + args.get_message() + '\n' + args.get_stackTrace());
}
但是你可以看到这里有2个异步执行，在成功处理程序方法中我返回内容类型名称，但我不知道如何将该内容类型名称作为值添加到listitems数组。
更新1
来电方法
function GetRelatedBillingDocumentsFromList(selectProperties, currentBillCyclePath, clientCode, jobCodes, engagementCode, enhanceFunctions) {
$log.info("Retrieving related billing documents for bill cycle with name [" + currentBillCyclePath + "]");
var deferred = $q.defer();
var webUrl = _spPageContextInfo.webAbsoluteUrl;
var viewFields = spService.ConvertSelectPropertiesToViewFields(selectProperties);
// query must return the documents for the same client but in other bill cycles not the current one
var camlQuery = '<View>' + viewFields +
'<Query>' +
'<Where>' +
//'<And>' +
'<Eq>' +
'<FieldRef Name="ClientCode" />' +
'<Value Type="Text">'+ clientCode + '</Value>' +
'</Eq>' +
// '<Neq>' +
// '<FieldRef Name="ContentType" />' +
// '<Value Type="Computed">Bill Cycle</Value>' +
// '</Neq>' +
//'</And>' +
'</Where>' +
//'<QueryOptions>' +
// '<ViewAttributes Scope="RecursiveAll" />' +
//'</QueryOptions>' +
'</Query>' +
'</View>';
var billCyclesListId = "{c23bbae4-34f7-494c-8f67-acece3ba60da}";
spService.GetListItemswithContentType(billCyclesListId, camlQuery, selectProperties)
.then(function(listItems) {
var listItemsWithValues = [];
if(listItems) {
var enumerator = listItems.getEnumerator();
while (enumerator.moveNext()) {
var listItem = enumerator.get_current();
var listItemValues = [];
selectProperties
.forEach(function(propertyName) {
var value = listItem.get_item(propertyName);
listItemValues[propertyName] = value;
});
listItemsWithValues.push(listItemValues);
}
}
// Create the full item url
listItemsWithValues.forEach(function(listItem) {
var fileDirRef = listItem["FileRef"];
var id = listItem["ID"];
var serverUrl = _spPageContextInfo.webAbsoluteUrl.replace(_spPageContextInfo.webServerRelativeUrl,"");
var dispFormUrl = serverUrl + fileDirRef + "/DispForm.aspx?ID=" + id;
listItem["FileRef"] = dispFormUrl;
});
var enhancedListItemValues = spService.SpSearchQuery.EnhanceSearchResults(listItemsWithValues, enhanceFunctions);
deferred.resolve(listItemsWithValues);
})
.catch (function (message) {
deferred.reject();
});
return deferred.promise;
}
答案 0 :(得分：1)
如果您使用的是较旧的javascript引擎，可能以下内容仍然有用，您可能需要了解如何对{f} Promise.all和new Promise进行polyfil。如果箭头功能不起作用，您可以将e => z替换为function(e){return z;}
function SuccessHandler(result) {
listItemEnumerator = listItems.getEnumerator();
const promises = [];
while (listItemEnumerator.moveNext()) {
oListItem = listItemEnumerator.get_current();
var CT = oListItem.get_contentType();
context.load(CT);
promises.push(
new Promise(
(resolve,reject) =>
context.executeQueryAsync(
//if contentobject is shared mutable object you're in trouble
// that doesn't work with concurrently running code that depends on it
// if it's mutable then prividing it in a closure with the IIFE isn't going
// to save you either
(function (contentobject) {
return function () {
var value = contentobject.get_name();
console.log("VAL: " , value);
//not sure what it is you want to return here
return [value,result];
};
}(contentobject)),
function () {
console.log("No Success");
}
)
)
);
return Promise.all(promises)
.then(
results => {
results.forEach(
//just log all the results, you can remove the then
// if this was what you need
([value,result]) => console.log("value:",value,"result",result)
);
return result;
}
)
}
}
如果调用getListItemswithContentType的函数需要知道它何时完成，您可以返回一个承诺。
return new Promise(
(resolve,reject) =>
context.executeQueryAsync(
x=>SuccessHandler(x).then(resolve,reject)
,error=>reject(error)
)
);