Kaizen #99 - Render Widgets Using Client Script

Kaizen #99 - Render Widgets Using Client Script

Hello everyone!
Welcome back to another interesting post. In this post, let us see how you can render Widgets using Client Script.

Widgets are embeddable UI components that you can create and add to your Zoho CRM. You can use widgets to perform functions that utilize data from third-party applications. You can build widgets for Zoho CRM using our JS SDK.

You can render a Widget through Client Script and pass data from the Widget to the Client Script.

Use Case:
At Zylker, a manufacturing company, the Service Agent places orders using the Orders module.  There is a sub-form named Product list. The user should add the products by clicking the "Add row" button every time. 



To avoid this, Zylker wants the users to select multiple products from a single pop-up. Once the user selects the products from that pop-up , the sub-form "Product list" should get updated with all those products(one product in one sub-form row).

Solution:

Whenever the user picks the Product Category, you can create a Client Script to render the widget. The Products selected by the user on the widget , will be passed to the Client Script and will be added as separate rows in  Product list subform.
 
1. Install Zoho CLI and add code to the app folder.
2. Upload the zip file as a Widget.
3. Create a Client Script to render the Widget and to add data to the Sub-form.


1.  Install Zoho CLI and add code to the app folder 

Follow the steps given in this post and add the html code, javascript file and css file.

Index.html



<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width">
  <title>Choose products</title>
  <link href="styles/style.css" rel="stylesheet" type="text/css" />
</head>
<body>
  <div class="wgt_cp_popupContent">
    <section class="wgt_cp_contentWrap">
      <div hidden="true" id="noProductDiv">
        <pre>No products associated to the selected deal</pre>
      </div>
      <table width="100%" cellspacing="0" id="pTable">
        <thead>
          <tr class="wgt_productTblHead">
            <th><input type="checkbox" id="selectAll"     onclick="selectAllProducts(this)"></th>
            <th>Product Name</th>
            <th>Product Category</th>
            <th>Unit Price</th>
            <th>Quantity in Stock</th>
          </tr>
        </thead>
        <tbody id="tbody"></tbody>
      </table>
    </section>
  </div>
  <script src="./script/script.js"></script>
</body>
</html>


Script.js

var count = 0;
var productData, maxRows = 0;
ZOHO.embeddedApp.on("PageLoad", async function (data) {
 console.log("data from Client Script", data);
 maxRows = data.max_rows;
 const search_response = await ZOHO.CRM.API.searchRecord({ Entity: "Products", Type: "criteria", Query: "(Product_Category:equals:" + data.product_category + ")" })
 if (search_response && search_response.data && search_response.data.length) {
  productData = search_response.data;
  var htmlString = "";
  productData.forEach(({ id, Product_Category, Product_Name, Unit_Price, Qty_in_Stock }) => {
   htmlString = htmlString.concat(
    `<tr>
     <td><input type='checkbox' onclick='selected(this)' id='${id}' class='products'></td>
     <td>${Product_Name}</td>
     <td>${Product_Category}</td>
     <td>${Unit_Price}</td>
     <td>${Qty_in_Stock}</td>
    </tr>`
   );
  });
  document.getElementById("tbody").innerHTML = htmlString;
 } else {
  document.getElementById("pTable").hidden = true;
  document.getElementById("noProductDiv").hidden = false;}
});
ZOHO.embeddedApp.init();
function selected(element) {
 element.checked ? count++ : count-- ;
 document.getElementById("selectedCount").innerHTML = `${count} Products selected`;
}
function closewidget() {
 if (count > maxRows) {
  alert("Selected product is greater than the maximum subform rows.");
 } else {
  var selected_products = [];
  for (product_element of document.getElementsByClassName('products')) {
   product_element.checked && selected_products.push(productData.find(product => product.id === product_element.id));}
  console.log("returning to Client Script ...", JSON.stringify(selected_products));
  $Client.close(selected_products);}
}


As per the above script, the products are fetched from the "Products" module based on the "Product Category" selected by the user. This information is captured in "search_response" and is added to the body of  widget.html. 
Here,  the code $Client.close(selected_products); will pass the selected products from Widget to the Client Script and close the widget rendered from Client Script. Click here for more details about the variable $Client.
Next step is to upload the zip file of the app folder.
Click here to view the complete code.

2. Upload the zip file as a Widget
  • Go to Setup > Developer Space > Widgets.
  • Click Create New Widget.

  • The Hosting should be "Zoho" and mention the html page of the app folder that you uploaded.
Note: The widget should be of "button" type in order to render through a Client Script.

3. Create a Client Script to render Widget and to add data to the subform
  • Go to Setup > Developer Space > Client Script. Click +New Script.
  • Specify the details to create a script and click Next.
  • The Client Script should render the Widget when the user selects Product Category. So Client Script should have field event on the field "Product Category".
  • On the Client Script IDE, you can see the below details.

  • Enter the following script in the Client Script IDE and click save.

var products_list = ZDK.Page.getField('Product_list').getValue();
if (products_list.length === 1) { // Clear subform if empty row
    !Object.values(products_list[0]).every(value => !!value) && products_list.pop();
}
// Open widget with product category & max. allowed rows based on existing subform data
var selected_products = ZDK.Client.openPopup({
    api_name: 'choose_products', type: 'widget', header: 'Choose Products', animation_type: 1, height: '570px', width: '1359px', left: '150px'
}, {
    product_category: value, max_rows: 25 - products_list.length
});
// Update subform with Selected Products from the widget Popup
if (selected_products.length) {
    selected_products.forEach(product => {
        products_list.push({ Product_Name: { id: product.id, name: product.Product_Name }, Quantity: 1, Unit_Price: product.Unit_Price });
    });
  ZDK.Page.getField('Product_list').setValue(products_list);
}


  • To render a widget from Client Script, use openPopup(config, data)  ZDK. You can specify the configuration details like api name of the widget, title, size, animation type as parameters and specify the data to be passed as 'PageLoad' event data in the Widget. 
  • The response from the widget (i.e user selection) is captured by the variable "selected_products". Then each product (id,name,product_name,quantity and unit_price) is pushed to the list products_list. Finally, the product list value  is updated to the Product Category sub-form using setValue(value) ZDK. 
  • Here is how the Widget gets rendered through Client Script.



We hope you found this post useful. We will meet you next week with another interesting topic! If you have any questions let us know in the comment section.

Click here for more details on Client Script in Zoho CRM.

As we approach the 100th post in our Kaizen series next week, we invite you to share your queries and concerns with us.  We are always looking for ways to improve our content and make it more relevant to our readers.

Please fill out this form to share your thoughts.



Happy Coding!




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