javascript - 从 promise 中的数组中删除对象

Question

以下函数有一个 currentBillCyclePath 参数，我需要用它来过滤掉执行查询后收到的一些元素。问题是

同时，该值不再存在且未定义。但是当方法启动时，值就在那里。

基本上我需要得到:listItemValues.FileRef.split("/")[4]; 如果它匹配 currentBillCyclePath，那么我不会将它添加到数组。

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;

            selectProperties = selectProperties.concat("ContentTypeId");
            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 Scope="RecursiveAll">' +   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>' +
                    '</Query>' +
                '</View>';

            var billCyclesListId = "{c23bbae4-34f7-494c-8f67-acece3ba60da}";                    
            spService.GetListItems(billCyclesListId, camlQuery, selectProperties)
            .then(function(listItems) {                 
                var listItemsWithValues = [];

                if(listItems) {
                    var enumerator = listItems.getEnumerator();
                    var promises = [];
                    while (enumerator.moveNext()) {
                        var listItem = enumerator.get_current();
                        var listItemValues = [];                                
                        selectProperties
                        .forEach(function(propertyName) {                               
                            var value = listItem.get_item(propertyName);
                            if(propertyName === "JobCodesMulti"){
                                jobvalue = "";
                                value.forEach(function(jobvalues){
                                    jobvalue+= jobvalues.get_lookupValue() +";";
                                })
                                listItemValues[propertyName] = jobvalue;
                            }else{
                                listItemValues[propertyName] = value;
                            }   
                        });

                        listItemsWithValues.push(listItemValues);
                    }

                    var promises = listItemsWithValues.map(addContentType);
                    $q.all(promises).then(youCanUseTheData);

                    function youCanUseTheData(){
                        /*
                        At this point, each listItem holds the 'Document Type' info
                        */
                        listItemsWithValues.forEach(function(listItem) {
                            var fileDirRef = listItem["FileRef"];
                            var id = listItem["ID"];
                            var title = listItem["Title"];
                            var serverUrl = _spPageContextInfo.webAbsoluteUrl.replace(_spPageContextInfo.webServerRelativeUrl,"");                          
                            var dispFormUrl = serverUrl + "/sites/billing/_layouts/15/DocSetHome.aspx?id="+fileDirRef;
                            var parentLink = listItem["FileRef"];
                            arrayofstrings = parentLink.split("/");
                            var billCycleFolderName = arrayofstrings[arrayofstrings.length-2];
                            arrayofstrings.pop();
                            var hyperLink = '<a href="' + arrayofstrings.join('/') + '">' + billCycleFolderName + '</a>';                           
                            listItem["Bill Cycle"] = hyperLink; 
                            listItemsWithValues["Document Type"] = getContentTypeOfCurrentItem(listItem.ID.toString());
                        });

                        var enhancedListItemValues = spService.SpSearchQuery.EnhanceSearchResults(listItemsWithValues, enhanceFunctions);                       
                        deferred.resolve(listItemsWithValues);
                    }
                }   

            })
            .catch (function (message) {
                deferred.reject();
            });

            return deferred.promise;
        }

更新:语法错误

更新二:新增GetData函数

function GetData(billCyclePath, clientCode, jobCodes, engagementCode) {             
                var enhanceFunctions = [
                    function(searchResultRow) {
                        return spService.AddHyperLinkOnFields(searchResultRow, config.HyperLinks);
                    },
                    function(searchResultRow) {
                        return spService.AddPresenceOnFields(searchResultRow, config.UserFields);
                    },
                    function(searchResultRow) {
                        return spService.FormatDateFields(searchResultRow, config.DateFields, generalConfig.DateTimeFormat);
                    },
                    function(searchResultRow) {
                        return spService.AddImageMapping(searchResultRow, config.ImageFields);
                    },
                    function(searchResultRow) {
                        return spService.FormatNumberFields(searchResultRow, config.NumberFields);
                    },
                    function(searchResultRow) {
                        // Put link to parent Bill Cycle with name = folder name
                        //var parentLink = searchResultRow["FileRef"];
                        //arrayofstrings = parentLink.split("/");
                        //var billCycleFolderName = arrayofstrings[arrayofstrings.length-2];
                        //arrayofstrings.pop();
                        //var hyperLink = '<a href="' + arrayofstrings.join('/') + '">' + billCycleFolderName + '</a>';                         
                        //searchResultRow["Bill Cycle"] = hyperLink; 
                    }
                ];

                // Get data from SP             
                var selectProperties = spService.TransformFieldsToSelectProperties(config.Fields); // copy array
                var selectPropertiesToShow = spService.TransformFieldsToSelectProperties(config.FieldsToShow); // copy array

                var extendedSelectProperties = selectProperties.slice();
                var hyperLinkedProperties = spService.TransformFieldsToSelectProperties(config.HyperLinks)
                extendedSelectProperties = extendedSelectProperties.concat(hyperLinkedProperties);

                GetRelatedBillingDocumentsFromList(extendedSelectProperties, billCyclePath, clientCode, jobCodes, engagementCode, enhanceFunctions)
                .then(function (data) {
                    var trimmedData = spService.SpSearchQuery.TrimSearchResultsToSelectProperties(data, selectPropertiesToShow);
                    // Add data to dataTable
                    var dataTable = $(tableSelector).DataTable();
                    dataTable.clear().rows.add(trimmedData).columns.adjust().draw(); // Resize columns based on new data sizes                                          
                    vm.ValidDataLoaded = true;
                })
                .catch (function (message) {
                    vm.Name = "Error";
                    vm.ValidDataLoaded = true;
                });

            }

更新 1:

我在调试后更改了过滤器功能，因为它在我第一次解释时错误地实现了，我什至使用了一些 console.log 并且我看到它有时打印 true 有时打印 false 到控制台。但是，我在 IF 中放置了一个断点，它从不执行推送，并且数组始终为空。

https://www.screencast.com/t/hRTEgvboCmX

我更新的代码:

//创建过滤列表项值 var createFilteredListItemsWithValues = createListItemValues( 函数(listItemValues){

            var x1=listItemValues && typeof listItemValues.FileRef === "string" && listItemValues.FileRef.split("/")[4];
            var x2= currentBillCyclePath.split("/")[8]
            console.log(x1===x2);


            return !(//pass filter function to createListItemValues
              listItemValues && 
              typeof listItemValues.FileRef === "string" &&
              listItemValues.FileRef.split("/")[4]
            ) === currentBillCyclePath.split("/")[8];
          }
        );

Answer 1

例如，我尝试稍微清理一下代码；删除捕获并拒绝没有信息。也许您可以尝试一下，看看是否会被拒绝。

由于 GetRelatedBillingDocumentsFromList 的很多处理是在单独的函数中完成的，您可以调试这些函数并查看它们是否按照您的预期进行。

var createQuery = function(viewFields,clientCode) {
  return '<View Scope="RecursiveAll">' +   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>' +
            '</Query>' +
        '</View>';
};
var createListItemValues = function(filter) {
  return function(listItems,selectProperties) {
    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);
            if (propertyName === "JobCodesMulti") {
              jobvalue = "";
              value.forEach(function (jobvalues) {
                jobvalue += jobvalues.get_lookupValue() + ";";
              })
              listItemValues[propertyName] = jobvalue;
            } else {
              listItemValues[propertyName] = value;
            }
          });
        if(filter(listItemValues)){//only push if filter returns true
          listItemsWithValues.push(listItemValues);
        }
      }
    }
    return listItemsWithValues;
  };
};
var processListItemWithValue = function(listItemsWithValues) {
  return function(listItem) {
    var fileDirRef = listItem["FileRef"];
    var id = listItem["ID"];
    var title = listItem["Title"];
    var serverUrl = _spPageContextInfo.webAbsoluteUrl.replace(_spPageContextInfo.webServerRelativeUrl, "");
    var dispFormUrl = serverUrl + "/sites/billing/_layouts/15/DocSetHome.aspx?id=" + fileDirRef;
    var parentLink = listItem["FileRef"];
    //!!!PLEASE NOTE: made arrayofstrings a local variable
    var arrayofstrings = parentLink.split("/");
    var billCycleFolderName = arrayofstrings[arrayofstrings.length - 2];
    arrayofstrings.pop();
    var hyperLink = '<a href="' + arrayofstrings.join('/') + '">' + billCycleFolderName + '</a>';
    listItem["Bill Cycle"] = hyperLink;
    listItemsWithValues["Document Type"] = getContentTypeOfCurrentItem(listItem.ID.toString());
  }
};

function GetRelatedBillingDocumentsFromList(selectProperties, currentBillCyclePath, clientCode, jobCodes, engagementCode, enhanceFunctions) {
  $log.info("Retrieving related billing documents for bill cycle with name [" + currentBillCyclePath + "]");
  //pass filter function to createListItemValues to get a new function that
  //  creates filtered list item values 
  var createFilteredListItemsWithValues = createListItemValues(
    function(listItemValues) {
      return !(//pass filter function to createListItemValues
        listItemValues && 
        typeof listItemValues.FileRef === "string" &&
        listItemValues.FileRef.split("/")[4]
      ) === currentBillCyclePath;
    }
  );
  var webUrl = _spPageContextInfo.webAbsoluteUrl;
  selectProperties = selectProperties.concat("ContentTypeId");
  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 = createQuery(viewFields,clientCode);
  var billCyclesListId = "{c23bbae4-34f7-494c-8f67-acece3ba60da}";
  //return a promise like here so the caller knows if something went wrong
  return spService.GetListItems(billCyclesListId, camlQuery, selectProperties)
  .then(
    function(listItems){
      console.log("currentBillCyclePath:",currentBillCyclePath);
      var listItemsValues = createFilteredListItemsWithValues
        (listItems,selectProperties);
      return $q.all(listItemsValues.map(addContentType))
      .then(function(){ return listItemsValues; })//finished asynchronously mutating array of listItems
    }
  ).then(
    function(listItemsWithValues) {
      listItemsWithValues.forEach(processListItemWithValue(listItemsWithValues));
      return $q.all(
        spService.SpSearchQuery.EnhanceSearchResults(listItemsWithValues, enhanceFunctions)
      )
    }
  )
}