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我的问题如下：

我在网站集根目录下有一个列表，代表名为“项目注册”的项目。该列表中的每个项目代表一个项目，我在其中存储项目名称、状态、URL 和一些其他属性。存储 URL 是因为每个项目在同一网站集下都有一个相应的 SharePoint 子网站，该网站集是通过在 Visual Studio 中创建的自定义事件接收器动态创建的。

每个项目子站点都有一个名为“成员”的列表，用于跟踪分配给该项目的人员。这是一项业务要求，此列表用于此问题范围之外的其他目的。

现在，我面临的挑战是，我需要在另一个名为“时间表”的列表的下拉列表中显示登录用户被分配到的项目。这是为了让用户能够输入在这些项目中花费的时间。此时间表列表不过是带有一些自定义字段的现成 SharePoint 日历列表。

下面是我正在使用的代码，但在检索成员列表时它一直给我以下错误。

未捕获的类型错误：无法调用未定义的方法“应用”

谁能指出我正确的方向？

我正在使用的代码位于我在母版页中正确引用的自定义 .js 文件中：

 $(document).ready(function () {

    SP.SOD.executeOrDelayUntilScriptLoaded(loadMyProjects,'SP.js');

 });

    var $ddlMyProjectsNewItem;
    var allProjects = new Array();

    function loadMyProjects()
    {

    $ddlMyProjectsNewItem = $("#ctl00_ctl32_g_03acc13b_954d_4bdc_9544_b379206bc9d5_ctl00_ctl05_ctl00_ctl00_ctl00_ctl04_ctl00_Lookup");
    var isTimesheetNewForm = $ddlMyProjectsNewItem.attr("id") != undefined ? true : false;

    if(!isTimesheetNewForm)
    {
        return;
    }

    $ddlMyProjectsNewItem.empty();


    // Get the current client context.
    var clientContext = SP.ClientContext.get_current();
    var web = clientContext.get_web();

    var list = web.get_lists().getByTitle('Project Register'); 
    var camlQuery = new SP.CamlQuery();

   camlQuery.set_viewXml("<View>" +
   "<ViewFields>" +
        "<FieldRef Name='Full_x0020_Project_x0020_Name' />" +
        "<FieldRef Name='ID' />" +
        "<FieldRef Name='Links' />" +
    "</ViewFields>" +
    "<Query>" +
        "<Where>" +
            "<Eq>" +
                "<FieldRef Name='Status' />" +
                "<Value Type='Lookup'>WIP</Value>" +
            "</Eq>" +
       "</Where>"+
        "<OrderBy>" +
            "<FieldRef Name='Full_x0020_Project_x0020_Name' Ascending='FALSE' />" +
        "</OrderBy>" + 
    "</Query>" +
    "</View>");

    this.collListItem = list.getItems(camlQuery);

    clientContext.load(collListItem);

    clientContext.executeQueryAsync(Function.createDelegate(this, this.onProjectsQuerySucceeded), Function.createDelegate(this, this.onQueryFailed));        

}

function onProjectsQuerySucceeded(sender, args) {

    var listItemEnumerator = collListItem.getEnumerator();

    while (listItemEnumerator.moveNext()) {

        var oListItem = listItemEnumerator.get_current();
        var projectId = oListItem.get_id();
        var projectName = oListItem.get_item('Full_x0020_Project_x0020_Name');
        var projectUrl = oListItem.get_item('Links');

        allProjects.push(projectId + "|" + projectName  + "|" + projectUrl);
    }

    $.each( allProjects, function( key, value ) {

        var projectMembers = new ProjectSiteMembers(value);
        projectMembers.get_members();

    });  

}

function ProjectSiteMembers(projectData) {
   // console.log(projectData);

    var projectValues = projectData.split('|');
    this.projectId = projectValues[0];
    this.projectName = projectValues[1];
    this.projectUrl = projectValues[2];

    this.clientContext = null;
    this.website = null;
    this.membersList = null;
    this.collListItemMembers = null;    
}

// Define the class methods.
ProjectSiteMembers.prototype = {
    get_members: function () {

        //console.log(this.projectUrl);

        this.clientContext = new SP.ClientContext(this.projectUrl);
        this.website = this.clientContext.get_web();

        this.membersList = this.clientContext.get_web().get_lists().getByTitle('Members')


        var camlQuery = new SP.CamlQuery();
        camlQuery.set_viewXml("<View>" +
   "<ViewFields>" +
        "<FieldRef Name='Member' />" +
    "</ViewFields>" +
    "<Query>" +
        "<Where>" +
            "<Eq>" +
                "<FieldRef Name='Member' />" +
                "<Value Type='Integer'>" +
                    "<UserID Type='Integer' />" +
         "      </Value>" +
            "</Eq>" +
        "</Where>"+
    "</Query>" +
    "</View>");

        this.collListItemMembers = this.membersList.getItems(camlQuery);

        this.clientContext.load(this.collListItemMembers);

            // Everything works until this point
            // This is the line giving me the error
        this.clientContext.executeQueryAsync(Function.createDelegate(this, this.onProjectMembersQuerySucceeded), Function.createDelegate(this, this.onQueryFailed));           
    }
};


function onProjectMembersQuerySucceeded(sender, args) {

    //console.log(this.projectId + " - " + this.projectName);

    var listItemInfoMember = '';

    var listItemMemberEnumerator = collListItemMembers.getEnumerator();

    while (listItemMemberEnumerator.moveNext()) {
        var oListItemMember = listItemMemberEnumerator.get_current();


            $ddlMyProjectsNewItem 
                .append('<option value="' + this.projectId + '">' + this.projectName + '</option>');

    }        
}

function onQueryFailed(sender, args) {

    alert('Request failed. ' + args.get_message() + '\n' + args.get_stackTrace());
}
4

1 回答 1

1

在与同事审查后，我们设法解决了问题。似乎我对未在 javascript 类范围内定义的方法进行了不正确的调用。那些愚蠢的错误会因为你忽略它们而让你烦恼几个小时。

以下是经过一些重构后的实际工作代码，因此任何人都可以在此处获取它以供将来参考。

 $(document).ready(function () {

    SP.SOD.executeOrDelayUntilScriptLoaded(loadMyProjects,'SP.js');

 });

    var $ddlMyProjects;
    var $ddlMyProjectsNewItem;
    var $ddlMyProjectsEditItem;
    var allProjects = new Array();

    function loadMyProjects()
    {

    $ddlMyProjectsNewItem = $("#ctl00_ctl32_g_03acc13b_954d_4bdc_9544_b379206bc9d5_ctl00_ctl05_ctl00_ctl00_ctl00_ctl04_ctl00_Lookup");
    $ddlMyProjectsEditItem= $("#ctl00_ctl32_g_23803b04_bdec_4c98_a4af_0b863da464c1_ctl00_ctl05_ctl00_ctl00_ctl00_ctl04_ctl00_Lookup");
    var isTimesheetNewForm = $ddlMyProjectsNewItem.attr("id") != undefined ? true : false;
    var isTimesheetEditForm = $ddlMyProjectsEditItem.attr("id") != undefined ? true : false;

    if(isTimesheetNewForm)
    {
        $ddlMyProjects = $ddlMyProjectsNewItem;
    }
    else if(isTimesheetEditForm)
    {
        $ddlMyProjects = $ddlMyProjectsEditItem;
    }
    else
    {
        return;
    }


    $ddlMyProjects.empty();


    // Get the current client context.
    var clientContext = SP.ClientContext.get_current();
    var web = clientContext.get_web();

    var list = web.get_lists().getByTitle('Project Register'); 
    var camlQuery = new SP.CamlQuery();

   camlQuery.set_viewXml("<View>" +
   "<ViewFields>" +
        "<FieldRef Name='Full_x0020_Project_x0020_Name' />" +
        "<FieldRef Name='ID' />" +
        "<FieldRef Name='Links' />" +
    "</ViewFields>" +
    "<Query>" +
        "<Where>" +
            "<Eq>" +
                "<FieldRef Name='Status' />" +
                "<Value Type='Lookup'>WIP</Value>" +
            "</Eq>" +
       "</Where>"+
        "<OrderBy>" +
            "<FieldRef Name='Full_x0020_Project_x0020_Name' Ascending='TRUE' />" +
        "</OrderBy>" + 
    "</Query>" +
    "</View>");

    this.collListItem = list.getItems(camlQuery);

    clientContext.load(collListItem);

    clientContext.executeQueryAsync(Function.createDelegate(this, this.onProjectsQuerySucceeded), Function.createDelegate(this, this.onProjectsQueryFailed));        

}

function onProjectsQuerySucceeded(sender, args) {

    var listItemEnumerator = collListItem.getEnumerator();

    while (listItemEnumerator.moveNext()) {

        var oListItem = listItemEnumerator.get_current();
        var projectId = oListItem.get_id();
        var projectName = oListItem.get_item('Full_x0020_Project_x0020_Name');
        var projectUrl = oListItem.get_item('Links');

        allProjects.push(projectId + "|" + projectName  + "|" + projectUrl);
    }

    $.each( allProjects, function( key, value ) {

        var projectMembers = new ProjectSiteMembers(value);
        projectMembers.get_members();

    });  

}

function onProjectsQueryFailed(sender, args) {

    alert('Request failed. ' + args.get_message() + '\n' + args.get_stackTrace());
}  

function ProjectSiteMembers(projectData) {
   // console.log(projectData);

    var projectValues = projectData.split('|');
    this.projectId = projectValues[0];
    this.projectName = projectValues[1];
    this.projectUrl = projectValues[2];

    this.clientContext = null;
    this.website = null;
    this.membersList = null;
    this.collListItemMembers = null;    
}

// Define the class methods.
ProjectSiteMembers.prototype = {

    onProjectMembersQuerySucceeded: function (sender, args) {

        console.log(this.projectId + " - " + this.projectName);

        var listItemInfoMember = '';

        var listItemMemberEnumerator = this.collListItemMembers.getEnumerator();

        while (listItemMemberEnumerator.moveNext()) {
            var oListItemMember = listItemMemberEnumerator.get_current();

                $ddlMyProjects.append('<option value="' + this.projectId + '">' + this.projectName + '</option>');
                return false;

        }        
    },

    onProjectMembersQueryFailed: function onQueryFailed(sender, args) {

        alert('Request failed. ' + args.get_message() + '\n' + args.get_stackTrace());
    },  

    get_members: function () {

        console.log(this.projectUrl);

        this.clientContext = new SP.ClientContext(this.projectUrl);
        this.website = this.clientContext.get_web();

        this.membersList = this.clientContext.get_web().get_lists().getByTitle('Members')


        var camlQuery = new SP.CamlQuery();
        camlQuery.set_viewXml("<View>" +
   "<ViewFields>" +
        "<FieldRef Name='Member' />" +
    "</ViewFields>" +
    "<Query>" +
        "<Where>" +
            "<Eq>" +
                "<FieldRef Name='Member' />" +
                "<Value Type='Integer'>" +
                    "<UserID Type='Integer' />" +
         "      </Value>" +
            "</Eq>" +
        "</Where>"+ 
    "</Query>" +
    "</View>");

        this.collListItemMembers = this.membersList.getItems(camlQuery);

        this.clientContext.load(this.collListItemMembers );

        this.clientContext.executeQueryAsync(Function.createDelegate(this, this.onProjectMembersQuerySucceeded), Function.createDelegate(this, this.onProjectMembersQueryFailed));           
    }
};
于 2013-07-22T05:14:39.967 回答