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Prerequisite for building new control.

3rd Party control files.

  • fullcalender.min.js
  • fullcalendar.css
  • alertify-1.0.6.js

Control level guidelines with examples.

  • A control should have one javascript file and one HTML template file with the same name. HTML template file should have plain HTML tags with knockout attributes
    example: html/BillingShippingAddress.html and js/BillingShippingAddress.js

  • A control's name should unique and meaningful and should not duplicate.
    example: BillingShippingAddress.html and BillingShippingAddress.js

  • A javascript variable will be created that will act as a collection for all of the controls objects. 
    example : var eb_billingShippingAddress = eb_billingShippingAddress || {};

  • Control's properties, functions and methods name should start with came case.
    example: productCatalogPage

  • Any object at the collection level should be generic to all instances of that control. Instance-specific information should live at the model level. SitePath, TemplatePath and ServicePath would be fixed properties for each control. These variables should be prefixed with an eb_prefix so that it does not collide with other JavaScript systems.
    example : 
    eb_billingShippingAddress.SitePath = eb_Config.SitePath;
    eb_billingShippingAddress.TemplatePath = "html/BillingShippingAddress.html";
    eb_billingShippingAddress.ServicePath = eb_Config.ServicePath;

  • The Path of the HTML template should mirror that of the path to the JS.
    example: eb_billingShippingAddress.TemplatePath = "html/BillingShippingAddress.html";

  • Each model's properties / field should be defined camel case and assign to ko.observable / ko.observableArray / ko.computed based on logic. 
    example: 
       var _that = this;
     _that.domElement = options.domElement;

    _that.showError = ko.observable(0);
    _that.errorMessage = ko.observable();
    _that.showSuccess = ko.observable(0);
    _that.successMessage = ko.observable();
    _that.billingAddress = ko.observableArray();

  • Should not use 'this' object directly in function. It should use var _self = this;

  • Each model's function's name should be meaningful and scope should be model's context.
    example:

    _that.toggleShipping = function () {
    _that.shippingAddressCollapse(!_that.shippingAddressCollapse());
    };

 

  • If there is more than one model for a control, a collection called models will be added to the control collection.
  • Sitewide settings such as the dom, service data, template path and dependent objects etc. will be passed into the control's javascript collection at the time of model creation.
    example : 

    eb_billingShippingAddress.model = function (options) {
    var _that = this;........}

  •  A render function should exist on each control.
    • Its job is to grab the template and insert it into a dom element that is passed into the function.
    • It should accept a user-supplied template in the place of the default template.

example: 

eb_billingShippingAddress.render = function (options) {
var defer = jQuery.Deferred();

if (!options) {
throw { type: "argument_null", message: "An object with values in the templatePath and domElement properties is required.", stack: Error().stack };
}

if (!options.templatePath) {
var finalPath = eb_billingShippingAddress.SitePath + eb_billingShippingAddress.TemplatePath;
options.templatePath = finalPath;
}

if (!options.domElement) {
throw { type: "argument_mismatch", message: 'Missing domElement. The object passed in must have a domElement property with a non-empty DOM object.', stack: Error().stack };
}

$.get(options.templatePath).done(function (data) {
options.domElement.innerHTML = data;
defer.resolve(data);
}).fail(defer.reject);
return defer.promise();
};

 

  • GET service call method should be control leve with parameters and deferred object handling.
    example: 

    eb_billingShippingAddress.createAddressRecord = function (data, personId) {
    var defer = jQuery.Deferred();
    console.info('create address record...');

    if (!personId || personId <= 0) {
    throw { type: "argument_null", message: "personId property is required.", stack: Error().stack };
    }
    if (!data) {
    throw { data: "argument_null", message: "data property is required.", stack: Error().stack };
    }
    var service = eb_billingShippingAddress.newAddressService.replace("{personId}", personId);

    $.ajax({
    url: service,
    crossDomain: true,
    type: "POST",
    data: data,
    xhrFields: {
    withCredentials: true
    }
    }).done(function (result) {
    defer.resolve(result);
    }).fail(defer.reject);
    return defer.promise();
    };

  • PATCH service call method should be control leve with parameters and deferred object handling.
    example: 

    eb_billingShippingAddress.updateProfileAddressRecord = function (data, addressName, personId) {
    var defer = jQuery.Deferred();
    if (!personId || personId <= 0) {
    throw { type: "argument_null", message: "personId property is required.", stack: Error().stack };
    }

    if (!addressName) {
    throw { type: "argument_null", message: "addressName property is required.", stack: Error().stack };
    }

    if (!data) {
    throw { data: "argument_null", message: "data property is required.", stack: Error().stack };
    }

    console.info('update address...');
    var service = eb_billingShippingAddress.updateProfileAddressService.replace("{personId}", personId).replace("{addressName}", addressName);
    $.ajax({
    url: service,
    type: "PATCH",
    contentType: "application/json",
    data: JSON.stringify(data),
    xhrFields: {
    withCredentials: true
    }
    }).done(function (result) {
    defer.resolve(result);
    }).fail(defer.reject);
    return defer.promise();
    };

  • POST service call method should be control leve with parameters and deferred object handling.
    example: 

    eb_billingShippingAddress.createAddressRecord = function (data, personId) {
    var defer = jQuery.Deferred();
    console.info('create address record...');

    if (!personId || personId <= 0) {
    throw { type: "argument_null", message: "personId property is required.", stack: Error().stack };
    }
    if (!data) {
    throw { data: "argument_null", message: "data property is required.", stack: Error().stack };
    }
    var service = eb_billingShippingAddress.newAddressService.replace("{personId}", personId);

    $.ajax({
    url: service,
    crossDomain: true,
    type: "POST",
    data: data,
    xhrFields: {
    withCredentials: true
    }
    }).done(function (result) {
    defer.resolve(result);
    }).fail(defer.reject);
    return defer.promise();
    };

  • DELETE service call method should be control leve with parameters and deferred object handling.
    example:

    eb_billingShippingAddress.deletePersonAddressRecord = function (addressName, personId) {
    var defer = jQuery.Deferred();
    if (!personId || personId <= 0) {
    throw { type: "argument_null", message: "personId property is required.", stack: Error().stack };
    }

    if (!addressName) {
    throw { type: "argument_null", message: "addressName property is required.", stack: Error().stack };
    }

    console.info('delete address...');
    var service = eb_billingShippingAddress.deletePersonAddressService.replace("{personId}", personId).replace("{addressName}", addressName);

    $.ajax({
    url: service,
    type: "DELETE",
    xhrFields: {
    withCredentials: true
    }
    }).done(function (result) {
    defer.resolve(result);
    }).fail(defer.reject);
    return defer.promise();
    };

  • Each service call should have handled with Jquery Deferred object with proper use of resolve(), reject() and promise() methods.
  • Service's fails case should be handled properly and write an appropriate meaningful error message based on the control requirements. We have handled three different way error messages.  
    • Error log in browsers console : Console.info("error message") and  Console.error("error message"); 
    • Control level predefined error messages under the knownResponses method :  _that.errorMessage(eb_billingShippingAddress.knownResponses[2].message);
    • Error message from service side: _that.errorMessage(data.responseJSON.message);

  • Knockout validations: https://github.com/Knockout-Contrib/Knockout-Validation

  • The control will know the default relative path to its HTML and it will be declared in a variable in the collection.
  • YUIDoc comments should be used and should be meaningful information that developers can use to understand what a function is doing.
  • Instance initiation should not happen at the control level.
  • References to JS objects outside of the scope of the control should be avoided.
  • It should only take 1 call to the server to get all of the initial data to show to the user.
  • Controls will be loaded asynchronously by the browser in whatever order the browser chooses if not dependent with each other.

Page level guidelines with examples.

  • References to all of the Javascript and CSS needed should be loaded at the page level. It should under the head tag.
    example: 

    <head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>Billing and Shipping Address</title>
    <script src="js/3rdParty/jquery-3.2.1.min.js"></script>
    <script src="js/3rdParty/knockout-3.4.2.js"></script>
    <script src="js/3rdParty/bootstrap.min.js"></script>
    <script src="js/3rdParty/knockout.validation.min.js"></script>
    <!--Solved icons issue-->
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
    <link rel="stylesheet" type="text/css" href="css/eb6.css" />
    <link rel="stylesheet" type="text/css" href="css/responsive.css" />
    <script src="js/configuration/ebConfig.js"></script>
    <script src="js/UserContext.js"></script>
    <script src="js/ShoppingCart.js"></script>
    <script src="js/PaymentSummary.js"></script>
    <script src="js/BillingShippingAddress.js"></script>
    </head>

  • Need to define div element with ID attribute for loading control on the html page. If page having two controls then add two coloum div with ID on page.
    example: 
    <div class="ebBody ebWrapper">
    <div class="ebusiness-main-container ebClear">
    <!--This div where the Billing and Shipping Address will come-->
    <div class="col-md-8">
    <div id="BillingShippingAddress"></div>
    </div>

    <!--This div where payment summary will come-->
    <div class="col-md-4">
    <div id="paymentSummary"></div>
    </div>
    </div>
    </div>

  • JS Code should write <script type="text/javascript"> $(document).ready (function () {}); </script> block.
  • Site-wide settings should be loaded and passed into the controls at the page level. This eliminates the dependency to the config file at the time the files are being loaded. Dependant objects will be passed into the control when an instance is created.
    example: 

    var options = {}
    options.domElement = $('#BillingShippingAddress')[0];
    options.templatePath = eb_Config.SitePath + "html/BillingShippingAddress.html";
    eb_Config.config(options, eb_billingShippingAddress);

    options.shoppingCart = eb_shoppingCart.live;
    options.userContext = eb_UserContext.live;

  • Control models should be instantiated at the page level inside of a document. ready jQuery object.
    example :

    //Payment Summary Form.
    var paymentSummaryDetails = {}
    paymentSummaryDetails.domElement = $('#paymentSummary')[0];
    paymentSummaryDetails.templatePath = eb_Config.SitePath + "html/PaymentSummary.html";
    paymentSummaryDetails.shoppingCart = eb_shoppingCart.live;
    paymentSummaryDetails.data = undefined;

    eb_Config.config(paymentSummaryDetails, eb_paymentSummaryDetails);
    eb_paymentSummaryDetails.render(paymentSummaryDetails).done(function () {
    eb_paymentSummaryDetails.live = new eb_paymentSummaryDetails.model(paymentSummaryDetails); //Page's live instance of the model. Handy for troubleshooting.
    eb_paymentSummaryDetails.live.hidePaymentDetails(0);
    ko.applyBindings(eb_paymentSummaryDetails.live, eb_paymentSummaryDetails.live.domElement);//Apply KO bindings, fire up the control
    }).fail(function (data, msg, jhr) {
    console.error('Failed to render payment Summary Details..' + data);
    });

  • Instances of the control's model should be added to that controls collection for reference. ex. ebLogin.live
  • Once instance created then Apply KO bindings and fire up the control.
    example: ko.applyBindings(eb_paymentSummaryDetails.live, eb_paymentSummaryDetails.live.domElement);//Apply KO bindings, fire up the control

Sitewide guidelines with examples.

  • ebConfig.js file available under root/js/configuration folder.
  • Sitewide settings should live in the sitewide configuration file.
    example: 

    //Sitewide default site path value.
    eb_Config.SitePath = "http://localhost:63818/";

    //Service path
    eb_Config.ServicePath = 'http://localhost:51809/';

    //Login Page URL
    eb_Config.loginPageURL = eb_Config.SitePath + "login.html";

    //Thumbnail image folder path
    eb_Config.thumbnailImageURL = eb_Config.SitePath + 'images/thumbnail/';

    //Large image folder path
    eb_Config.largeImageURL = eb_Config.SitePath + 'images/large/';

    //Image path extension
    eb_Config.imageExtension = '.jpg';

    //This property will load default image [No Photo Available Image] instead original one for product.
    eb_Config.loadDefaultImage = true;

    eb_Config.defaultDateFormat = "MM/DD/YYYY"; // Default date format

    eb_Config.eventsDateFormat = "MM/DD/YYYY hh:mm A"; // Event date format

    eb_Config.roundOffDigitsAfterDecimal = 2;  //Digit after decimal

     

  • Pass site level configuration to a control on page startup. SitePath and Service Path will be passed in by default if not explicitly specified in options.
    example : eb_Config.config(options, eb_billingShippingAddress);

  • Sitewise get URL parameter function to get URL attributes value.
    example:  eb_Config.getUrlParameter("RedirectPage")

 

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