';
+
+ // Build final HTML
+ $html = $this->buildElementMarkup($elMarkup, $data, $form);
+
+ // Output the HTML
+ echo apply_filters('fluentform/rendering_field_html_' . $elementName, $html, $data, $form);
+ }
+
+ /**
+ * Format the field value for display in entries, emails, etc.
+ * @param mixed $data Field value
+ * @param array $field Field settings
+ * @param int $form_id Form ID
+ * @param bool $isHtml Whether HTML output is expected
+ * @return string
+ */
+ public function renderResponse($data, $field, $form_id, $isHtml)
+ {
+ if (is_array($data)) {
+ return implode(', ', $data);
+ }
+
+ return $data;
+ }
+
+ /**
+ * Validate the field input
+ * @param array $errorMessage Error message array
+ * @param array $field Field settings
+ * @param array $formData Form data
+ * @param array $fields All form fields
+ * @param object $form Form object
+ * @return array
+ */
+ public function validateInput($errorMessage, $field, $formData, $fields, $form)
+ {
+ $fieldName = $field['name'];
+ if (empty($formData[$fieldName])) {
+ return $errorMessage;
+ }
+ $value = $formData[$fieldName]; // This is the user input value
+
+ // Add your custom validation logic here
+
+ return $errorMessage;
+ }
+}
+```
+
+## Important Notes About Component Names
+
+### In PHP:
+
+1. In the `getComponent()` method, set `'template' => 'CustomEditorField'` to tell Fluent Forms to use a custom Vue component.
+2. The `componentName` property in `editor_options` must match exactly the name you register in JavaScript.
+3. Similarly, in `getEditorCustomizationSettings()`, use `'template' => 'CustomSettingsField'` and set `componentName` to match your settings component name.
+
+These connections are critical - if the names don't match exactly, Fluent Forms won't be able to find and render your custom components.
+
+## JavaScript Implementation
+
+Next, create a JavaScript file to register your custom Vue components:
+
+```javascript
+// custom-element.js
+
+import MyCustomElementEditor from './components/MyCustomElementEditor.vue';
+import MyCustomSettingsComponent from './components/MyCustomSettingsComponent.vue';
+
+// Register the components with EXACTLY the same names used in PHP
+window.ffEditorOptionsCustomComponents = window.ffEditorOptionsCustomComponents || {};
+
+// IMPORTANT: These keys must match the componentName values in PHP
+window.ffEditorOptionsCustomComponents.MyCustomElementEditor = MyCustomElementEditor;
+window.ffEditorOptionsCustomComponents.MyCustomSettingsComponent = MyCustomSettingsComponent;
+```
+
+## Vue Component for Editor
+
+Create a Vue component for the main editor interface:
+- props
+ - `item` The field data
+
+```vue
+
+
+
+
My Custom Element Editor
+
+
+
+
+
+```
+
+## Vue Component for Custom Settings
+
+Create a Vue component for the custom settings:
+
+- props
+ - `listItem` Field settings options data - `object`
+ - `editItem` Field data - `object`
+ - `form_items` All fields data - `array`
+
+```vue
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ Show Extra Content
+
+
+
+
+
+
+
+
+```
+
+## Registering the Custom Field
+
+Finally, initialize your custom field in your plugin:
+
+```php
+key, array($this, 'renderResponse'), 10, 4);
+ add_filter('fluentform/validate_input_item_' . $this->key, array($this, 'validateInput'), 10, 5);
+
+ // Enqueue assets
+ add_action('fluentform/loading_editor_assets', array($this, 'enqueueEditorAssets'));
+ }
+
+ // Implement required methods...
+
+ public function enqueueEditorAssets()
+ {
+ wp_enqueue_script(
+ 'my-custom-element-editor',
+ MY_PLUGIN_URL . 'assets/js/custom-element.js',
+ [],
+ '1.0.0',
+ true
+ );
+ }
+}
+
+/*
+ * Initialize the class
+ */
+add_action('fluentform/loaded', function () {
+ new MyCustomElement();
+});
+```
+
+By following this comprehensive guide, you can create powerful custom form fields that integrate perfectly with the Fluent Forms editor interface.
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