A new catalog client script

Catalog Client Script/Set fields from URL Parameter 2/CatalogClientScript.js

@@ -0,0 +1,36 @@
+function onLoad() {
+
+    var taskId = getParameterValue("taskid");
+
+    if (taskId != "" && taskId != null && taskId != undefined) {
+      console.log('=== CAMACHO Task id: ' + taskId);
+
+      var gaGetTaskNumber = new GlideAjax('UtilsAjax');
+      gaGetTaskNumber.addParam('sysparm_name', 'getTaskNumber');
+      gaGetTaskNumber.addParam('sysparm_task_id', taskId);
+      gaGetTaskNumber.getXMLAnswer(setmyFormValue);
+    }
+ }
+
+ function setmyFormValue(answer) {
+
+   //console.log('=== CAMACHO Entered setmyFormValue');
+   if (answer) {
+     var obj = JSON.parse(answer);
+     var numero = obj.number.toString();
+     console.log(numero);
+
+     g_form.setValue('task_number', numero);
+
+   }
+ }
+
+ function getParameterValue(name) {
+   var url = top.location.href;
+   var value = new URLSearchParams(url).get(name);
+   if (value) {
+     return value;
+   } else {
+     return null;
+   }
+ }

Catalog Client Script/Set fields from URL Parameter 2/KMXOUtils.js

@@ -0,0 +1,37 @@
+var KMXOUtils = Class.create();
+KMXOUtils.prototype = {
+    initialize: function() {
+    },
+
+  /*
+  * Receives a um sys_id and returns a Task table field value
+  *
+  * @param {String} - taskId
+  * @return {Object}
+  */
+  getTaskNumber: function(taskId)
+  {
+      if (taskId != "" && taskId != null && taskId != undefined) {
+
+        var grTask = new GlideRecord('x_770214_consultor_rwd_activity');
+
+        if (grTask.get(taskId)) {
+
+          var number = grTask.getValue('number');
+
+          var obj = {};
+          obj["number"] = number;
+
+          return obj;
+
+        } else {
+
+          return {};
+
+        }
+
+      }
+  },
+
+    type: 'KMXOUtils'
+};

Catalog Client Script/Set fields from URL Parameter 2/UtilsAjax.js

@@ -0,0 +1,11 @@
+var UtilsAjax = Class.create();
+UtilsAjax.prototype = Object.extendsObject(global.AbstractAjaxProcessor, {
+
+  getTaskNumber: function() {
+    var taskId = this.getParameter('sysparm_task_id');
+    gs.debug('=== Camacho UtilsAjax = Received the sys_id ' + taskId);
+    return JSON.stringify(new KMXOUtils().getTaskNumber(taskId));
+
+  },
+    type: 'UtilsAjax'
+});

Catalog Client Script/Set fields from URL Parameter 2/readme.md

@@ -0,0 +1,27 @@
+# Set fields on a catalog item from URL parameters.
+
+The mission was to get a sys_id from the URL, query a record and return a value to the front-end.
+
+In the front-end we have a Record Producer (RP) with a String field.
+
+On the onLoad event, we want to populate the field in order to show the value retrieved from the back-end.
+
+The Use Case is defined so let's go to the step by step process.
+
+1. Create a Util class in the back-end
+
+Our Utils class will be a Script Include that receives a sys_id and returns a String. 
+
+[KMXOUtils](KMXOUtils.js) 
+
+2. Create a class to provide access for the Front-End
+
+2.1. To provide access in this class, the parameter Client callable should be True (checked)
+
+[UtilsAjax](UtilsAjax.js) 
+
+3. I'll suppose that you have a String field called task_number in your RP
+
+3.1. Create a Catalog Client Script (Type: OnLoad) to get the URL parameter and call the back-end class:
+
+[CatalogClientScript](CatalogClientScript.js)