Open modal widget onsubmit

Catalog Client Script/Open modal widget in an Onsubmit/openmodal.js

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+    function onSubmit() {
+
+
+        if (g_scratchpad.isFormValid)
+            return true;
+
+      //We can do some check using a Client Callable script include
+        var getAnswer = new GlideAjax('example');
+        getAnswer.addParam('sysparm_name', 'checkFor');
+        getAnswer.addParam('sysparm_input1', g_user.userID);
+        getAnswer.addParam('sysparm_input2', g_form.getUniqueValue());
+
+        getAnswer.getXML(parsing);
+
+        function parsing(response) {
+
+            var answer = response.responseXML.documentElement.getAttribute('answer');
+            if (answer) {
+                var data = JSON.parse(answer);
+
+                if (data == true) {
+
+                    spModal.open({
+                        title: "Test title",
+                        widget: "mywidget",
+                        buttons: [{
+                                label: 'Close',
+                                value: 'close'
+                            },
+                            {
+                                label: 'Create New Record',
+                                value: 'create'
+                            }
+                        ],
+                        size: 'md'
+                    }).then(function(answer) {
+                      //if button pressed is "create" then submit the form
+                        if (answer.value == 'create') {
+                            g_scratchpad.isFormValid = true;
+                            g_form.submit();
+                        }
+                    });
+                } else {
+                    g_scratchpad.isFormValid = true;
+                    g_form.submit();
+                }
+
+            }
+
+        }
+      //Dont submit the form
+        return false;
+    }

Catalog Client Script/Open modal widget in an Onsubmit/readme.md

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+Code snippet to stop submission of a form in an Onsubmit Client Script, use an asynchronous call, and open a Widget in Modal view. In the script provided, there are two buttons in the modal. The first continues with the submission to create a new record and the second one cancels it. We can use a Script Include to get some value that we want and based on that open the modal or continue with submission.