Pass multiple values from server to client side in an object (#1558)

Author: NowRishi

Client Scripts/Set Severity, state & assigned to/Readme.md

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+Use the script provided in script_include.js and script.js to set fetch multiple values from server to client side by passing an
+object from server to the client side and setting values on your form. This can be used to pass multiple parameters from server to
+client side.
+
+Use Case:
+Consider you have a reference field on your form referring to "sn_si_incident" and you need to set Severity, state and assigned to
+onChange of the reference field.
+
+Solution:
+Create a client callable script include as mentioned in script_include.js and pass the required values to your client script.
+Then use the onChange client script in script.js to set values on the form.

Client Scripts/Set Severity, state & assigned to/script.js

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+//onChange client script
+
+function onChange(control, oldValue, newValue, isLoading, isTemplate) {
+    if (isLoading || newValue === '') {
+        
+        return;
+    }
+
+
+    //Type appropriate comment here, and begin script below
+    var ga = new GlideAjax('getSIRDetails'); // calling script include
+    ga.addParam('sysparm_name', 'getDetails');
+    ga.addParam('sysparm_sir', newValue); //passing newValue to the script include
+    ga.getXMLAnswer(callBackFunction);
+
+
+    function callBackFunction(response) {
+        var ans = JSON.parse(response);
+        g_form.setValue('severity', ans.severity); // setting values from the obj to appropriate fields
+        g_form.setValue('soc_sir_state', ans.state);
+        g_form.setValue('soc_sir_assigned_to', ans.assignedto);
+
+
+    }
+}

Client Scripts/Set Severity, state & assigned to/script_include.js

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+//Client callable script include
+var getSIRDetails = Class.create();
+getSIRDetails.prototype = Object.extendsObject(global.AbstractAjaxProcessor, {
+    getDetails: function() {
+        var sir = this.getParameter('sysparm_sir'); //getting the newValue of Security Inc from onChange client script
+        var obj = {}; //declare an object
+        var gr = new GlideRecord('sn_si_incident');
+        gr.addQuery('sys_id', sir); //Query to security incident table with the newValue
+        gr.query();
+        if (gr.next()) {
+            obj.severity = gr.severity.getDisplayValue();  //Setting values in the obj
+            obj.state = gr.state.getDisplayValue();
+            obj.assignedto = gr.assigned_to.getDisplayValue();
+        }
+        return JSON.stringify(obj); //passing the object to client script
+    },
+    type: 'getSIRDetails'
+});