Create code.js

Author: shivamvish160

Server-Side Components/Script Includes/Prevent circular dependencies in task relationships./code.js

@@ -0,0 +1,26 @@
+var DependencyChecker = Class.create();
+DependencyChecker.prototype = {
+    initialize: function() {},
+
+    hasCircularReference: function(taskId) {
+        var visited = {};
+        return this._check(taskId, visited);
+    },
+
+    _check: function(taskId, visited) {
+        if (visited[taskId]) return true;
+        visited[taskId] = true;
+
+        var gr = new GlideRecord('task_dependency');
+        gr.addQuery('dependent_task', taskId);
+        gr.query();
+
+        while (gr.next()) {
+            if (this._check(gr.task.toString(), visited)) return true;
+        }
+
+        return false;
+    },
+
+    type: 'DependencyChecker'
+};