fix form bugs and add actions for click and submit

Model/Action/Dom/Click.js

@@ -0,0 +1,25 @@
+/**
+ * Click dom element.
+ *
+ * @param {Object}   action   Action data
+ * @param {function} callback Callback
+ * @param {string}   id       Action element
+ *
+ * @since 1.0.0
+ */
+export function domClickAction (action, callback, id)
+{
+    "use strict";
+
+    const click = action.base === 'self' ? (action.selector === '' ? [document.getElementById(id)] : document.getElementById(id).querySelectorAll(action.selector)) : document.querySelectorAll(action.selector);
+
+    if (!click) {
+        return;
+    }
+
+    for (const i of click) {
+        i.click();
+    }
+
+    callback();
+};

Model/Action/Dom/FormSubmit.js

@@ -0,0 +1,27 @@
+/**
+ * Click dom element.
+ *
+ * @param {Object}   action   Action data
+ * @param {function} callback Callback
+ * @param {string}   id       Action element
+ *
+ * @since 1.0.0
+ */
+export function formSubmitAction (action, callback, id)
+{
+    "use strict";
+
+    const submit = action.base === 'self' ? (action.selector === '' ? [document.getElementById(id)] : document.getElementById(id).querySelectorAll(action.selector)) : document.querySelectorAll(action.selector);
+
+    if (!submit) {
+        return;
+    }
+
+    const formManager = window.omsApp.uiManager.getFormManager();
+
+    for (const i of submit) {
+        formManager.submit(formManager.get(i.id));
+    }
+
+    callback();
+};

Views/FormView.js

@@ -430,7 +430,7 @@ export class FormView
 
         for (const key in data) {
             if (data.hasOwnProperty(key)) {
-                formData.append(key, data[key].constructor === Array ? JSON.stringify(data[key]) : data[key]);
+                formData.append(key, data[key] !== null && data[key].constructor === Array ? JSON.stringify(data[key]) : data[key]);
             }
         }