Incident Count of Selected Configuration Item with Info Message and Link to its Related Incident (#2459)

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* Create clientScriptCiIncident.js

* Create glideAjaxIncidentCiCount.js

Author: zakir8992

Client-Side Components/Client Scripts/Incident Count of Selected CI with Clickable Link to Related Incidents/CI_Incident_Message_Count_1.png

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+# Incident Count of Selected Configuration Item with Info Message and Link to its Related Incident 
+
+Displays a message showing the count of open incidents associated with a selected **Configuration Item (CI)** whenever the **Configuration Item** field changes on the Incident form.
+
+- Helps quickly identify whether the selected CI has existing incident by fetching and displaying active incident counts (excluding *Resolved*, *Closed*, and *Canceled* states).  
+- Shows an **info message** with a **clickable link** that opens a filtered list of related incidents for that CI  
+- If more than five incidents are linked, a **warning message** appears suggesting Problem investigation for frequent or repeated CI issues.
+- Uses an **onChange Client Script** on the *Configuration Item* field and a **GlideAjax Script Include** called from the client script to fetch the incident count  
+
+---
+
+## Warning Message displayed on form when CI has 5 or more incidents 
+
+![CI_Incident_Message_Count_1](CI_Incident_Message_Count_1.png)
+
+---
+
+## Info Message displayed on form when CI has no incidents
+
+![CI_Incident_Message_Count_2](CI_Incident_Message_Count_2.png)
+
+---
+
+## Info Message displayed on form when CI has incidents less than 5
+
+![CI_Incident_Message_Count_3](CI_Incident_Message_Count_3.png)
+
+---
+
+## Upon clicking the url link filter list opens with incidents associated with CI
+
+![CI_Incident_Message_Count_4](CI_Incident_Message_Count_4.png)
+
+---

Client-Side Components/Client Scripts/Incident Count of Selected CI with Clickable Link to Related Incidents/CI_Incident_Message_Count_2.png

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+function onChange(control, oldValue, newValue, isLoading, isTemplate) {
+    if (isLoading || newValue === '') return;
+
+    g_form.clearMessages();
+
+    // Call Script Include to count incidents by CI
+    var ga = new GlideAjax('ConfigurationIncidentCheck');
+    ga.addParam('sysparm_name', 'getIncidentCount');
+    ga.addParam('sysparm_ci', newValue);
+
+    ga.getXMLAnswer(function(response) {
+        var count = parseInt(response, 10);
+        if (isNaN(count)) {
+            g_form.addErrorMessage("Could not retrieve incident count for this CI.");
+            return;
+        }
+
+        var ciName = g_form.getDisplayValue('cmdb_ci');
+        var url = '/incident_list.do?sysparm_query=cmdb_ci=' + newValue + '^stateNOT IN6,7,8';
+        var msg = 'Configuration Item <b>' + ciName + '</b> has <a target="_blank" href="' + url + '"><b>' + count + '</b> related incident(s)</a>.';
+
+       if (count === 0) {
+    g_form.addInfoMessage(
+        'Configuration Item <b>' + ciName + '</b> has no incidents associated with it.'
+    );
+} else {
+    if (count >= 5) {
+        g_form.addWarningMessage(
+            msg + ' consider Problem investigation.'
+        );
+    } else {
+        g_form.addInfoMessage(msg);
+    }
+}
+    });
+}

Client-Side Components/Client Scripts/Incident Count of Selected CI with Clickable Link to Related Incidents/CI_Incident_Message_Count_3.png

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+var ConfigurationIncidentCheck = Class.create();
+ConfigurationIncidentCheck.prototype = Object.extendsObject(AbstractAjaxProcessor, {
+getIncidentCount: function() {
+        var ci = this.getParameter('sysparm_ci');
+        if (!ci) return 0;
+
+        var gr = new GlideAggregate('incident');
+        gr.addQuery('cmdb_ci', ci);
+        gr.addQuery('state', 'NOT IN', '6,7,8'); 
+        gr.addAggregate('COUNT');
+        gr.query();
+
+        return gr.next() ? gr.getAggregate('COUNT') : 0;
+    },
+
+    type: 'ConfigurationIncidentCheck'
+});