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7/27/2016 12:34 PM
 

I am looking at the results of a spa 8 template, and see the following:

    <a data-bind="click: save" href="#" class="dnnPrimaryAction">[Resx:{key:"btnSubmit"}]</a>

    <a data-bind="click: cancel" href="#" class="dnnSecondaryAction">[Resx:{key:"btnCancel"}]</a>

The above are a button and a link for an edit view of a task module.  No where is there any reference in the js or html or css to HOW the dnnPrimaryAction is somehow translated to a webservice action.  I mean, here is the webservice call that obviously must be made by the first line of html above.  It's  a piece of the javascript 'taskitem' object:

    var save = function () {

        isLoading(true);

        var item = {

            id: id(),

            name: name(),

            description: description(),

            assignedUser: assignedUser()

        };

        var ajaxMethod = "POST";

        var restUrl = service.baseUrl;

 

        if (item.id > 0) {

            // ajaxMethod = "PATCH";

            restUrl += item.id;

        }

        var jqXHR = $.ajax({

            method: ajaxMethod,

            url: restUrl,

            contentType: "application/json; charset=UTF-8",

            data: JSON.stringify(item),

            beforeSend: service.framework.setModuleHeaders,

            dataType: "json"

        }).done(function (data) {

            console.log(data);

            dnnModal.closePopUp();

        }).always(function (data) {

            isLoading(false);

        });

    };

So, exactly HOW does the html lead to this section of code?  There is no relationship I can see between the class OR id of the html.

Here's the complete javascript object.  This is a dnn released object, so I am sure LOTS of people will have the same questions I do.  I am familiar with knockout.js and jquery, and have done development with both of them for years, but I cannot see how this works, and obviously cannot build anything using spa unless the meaning is clear.

var LicenseManager = LicenseManager || {};

 

LicenseManager.itemViewModel = function (moduleId, resx) {

    var service = {

        path: "LicenseManager",

        framework: $.ServicesFramework(moduleId)

    }

    service.baseUrl = service.framework.getServiceRoot(service.path) + "Item/";

 

    var id = ko.observable(-1);

    var name = ko.observable('');

    var description = ko.observable('');

    var assignedUser = ko.observable(-1);

    var userList = ko.observableArray([]);

    var isLoading = ko.observable(false);

 

    var init = function () {

        var qs = getQueryStrings();

        var itemId = qs["tid"];

        if (itemId) {

            getItem(itemId);

        }

        getUserList();

    };

 

    var getQueryStrings = function () {

        var assoc = {};

        var decode = function (s) { return decodeURIComponent(s.replace(/\+/g, " ")); };

        var queryString = location.search.substring(1);

        var keyValues = queryString.split('&');

 

        for (var i = 0; i < keyValues.length; i++) {

            var key = keyValues[i].split('=');

            if (key.length > 1) {

                assoc[decode(key[0])] = decode(key[1]);

            }

        }

 

        return addRewriteQueryString(assoc, decode);

    };

 

    var addRewriteQueryString = function (hash, decode) {

        var path = location.pathname;

        var queryString = path.substring(path.search('/ctl/') + 1);

        var keyValues = queryString.split('/');

 

        for (var i = 0; i < keyValues.length; i += 2) {

            hash[decode(keyValues[i])] = decode(keyValues[i + 1])

        }

 

        return hash;

    };

 

    var getItem = function (itemId) {

        isLoading(true);

 

        var restUrl = service.baseUrl + itemId;

        var jqXHR = $.ajax({

            url: restUrl,

            beforeSend: service.framework.setModuleHeaders,

            dataType: "json"

        }).done(function (data) {

            if (data) {

                load(data);

            }

            else {

                clear();

            }

        }).always(function (data) {

            isLoading(false);

        });

    };

 

    var getUserList = function () {

        isLoading(true);

 

        // need to calculate a different Url for User service

        var restUrl = service.framework.getServiceRoot(service.path) + "User/";

        var jqXHR = $.ajax({

            url: restUrl,

            beforeSend: service.framework.setModuleHeaders,

            dataType: "json",

            async: false

        }).done(function (data) {

            if (data) {

                loadUsers(data);

            }

            else {

                clear();

            }

        }).always(function (data) {

            isLoading(false);

        });

    };

 

    var load = function (data) {

        id(data.id)

        name(data.name);

        assignedUser(data.assignedUser);

        description(data.description);

    };

 

    var save = function () {

        isLoading(true);

        var item = {

            id: id(),

            name: name(),

            description: description(),

            assignedUser: assignedUser()

        };

        var ajaxMethod = "POST";

        var restUrl = service.baseUrl;

 

        if (item.id > 0) {

            // ajaxMethod = "PATCH";

            restUrl += item.id;

        }

        var jqXHR = $.ajax({

            method: ajaxMethod,

            url: restUrl,

            contentType: "application/json; charset=UTF-8",

            data: JSON.stringify(item),

            beforeSend: service.framework.setModuleHeaders,

            dataType: "json"

        }).done(function (data) {

            console.log(data);

            dnnModal.closePopUp();

        }).always(function (data) {

            isLoading(false);

        });

    };

 

    var loadUsers = function (data) {

        userList.removeAll();

        var underlyingArray = userList();

        for (var i = 0; i < data.length; i++) {

            var result = data[i];

            var user = new LicenseManager.user(result.id, result.name);

            underlyingArray.push(user);

        }

        userList.valueHasMutated();

    };

 

    var clear = function () {

        id('');

        name('');

        description('');

        assignedUser(-1);

    };

 

    var cancel = function () {

        dnnModal.closePopUp(false);

    };

 

    return {

        id: id,

        name: name,

        description: description,

        assignedUser: assignedUser,

        userList: userList,

        cancel: cancel,

        load: load,

        save: save,

        init: init,

        isLoading: isLoading

    };

}

 

LicenseManager.user = function (id, name) {

    this.id = id;

    this.name = name;

}

 

 
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