Create Categories on-the-fly on Link edit form (#252)

* Create Categories on-the-fly on Weblink edit form

Create Categories on-the-fly on Weblink edit form (1/3)

* Create Categories on-the-fly on Weblink edit form 

Create Categories on-the-fly on Weblink edit form (2/3)

* Create Categories on-the-fly on Weblink edit form 

Create Categories on-the-fly on Weblink edit form (3/3

* CS fix

CS fix

* Update weblink.xml

* Update weblink.php

* Update weblink.php

* one space

one space as suggested

src/administrator/components/com_weblinks/models/forms/weblink.xml

@@ -17,11 +17,14 @@
 			description="COM_WEBLINKS_FIELD_ALIAS_DESC"
 			hint="JFIELD_ALIAS_PLACEHOLDER" />
 
-		<field name="catid" type="categoryedit" extension="com_weblinks"
-			label="JCATEGORY" description="COM_WEBLINKS_FIELD_CATEGORY_DESC"
-		>
-		</field>
-
+		<field name="catid"
+			type="categoryedit"
+			extension="com_weblinks"
+			label="JCATEGORY"
+			description="COM_WEBLINKS_FIELD_CATEGORY_DESC"
+			required="true"
+			default="" 
+		/>
 
 		<field name="url" type="url"
 			class="span12"

src/administrator/components/com_weblinks/models/weblink.php

@@ -292,6 +292,31 @@ class WeblinksModelWeblink extends JModelAdmin
 	{
 		$app = JFactory::getApplication();
 
+		JLoader::register('CategoriesHelper', JPATH_ADMINISTRATOR . '/components/com_categories/helpers/categories.php');
+
+		// Cast catid to integer for comparison
+		$catid = (int) $data['catid'];
+ 
+		// Check if New Category exists
+		if ($catid > 0)
+		{
+			$catid = CategoriesHelper::validateCategoryId($data['catid'], 'com_weblinks');
+		}
+
+		// Save New Category
+		if ($catid == 0 && $this->canCreateCategory())
+		{
+			$table = array();
+			$table['title'] = $data['catid'];
+			$table['parent_id'] = 1;
+			$table['extension'] = 'com_weblinks';
+			$table['language'] = $data['language'];
+			$table['published'] = 1;
+
+			// Create new category and get catid back
+			$data['catid'] = CategoriesHelper::createCategory($table);
+		}
+
 		// Alter the title for save as copy
 		if ($app->input->get('task') == 'save2copy')
 		{
@@ -332,4 +357,37 @@ class WeblinksModelWeblink extends JModelAdmin
 
 		return array($name, $alias);
 	}
+
+	/**
+	 * Allows preprocessing of the JForm object.
+	 *
+	 * @param   JForm   $form   The form object
+	 * @param   array   $data   The data to be merged into the form object
+	 * @param   string  $group  The plugin group to be executed
+	 *
+	 * @return  void
+	 *
+	 * @since    3.6.0
+	 */
+	protected function preprocessForm(JForm $form, $data, $group = 'content')
+	{
+		if ($this->canCreateCategory())
+		{
+			$form->setFieldAttribute('catid', 'allowAdd', 'true');
+		}
+
+		parent::preprocessForm($form, $data, $group);
+	}
+
+	/**
+	 * Is the user allowed to create an on the fly category?
+	 *
+	 * @return  bool
+	 *
+	 * @since   3.6.0
+	 */
+	private function canCreateCategory()
+	{
+		return JFactory::getUser()->authorise('core.create', 'com_weblinks');
+	}
 }

src/administrator/components/com_weblinks/views/weblink/tmpl/edit.php

@@ -12,7 +12,7 @@ defined('_JEXEC') or die;
 JHtml::addIncludePath(JPATH_COMPONENT . '/helpers/html');
 
 JHtml::_('behavior.formvalidator');
-JHtml::_('formbehavior.chosen', 'select');
+JHtml::_('formbehavior.chosen', 'select', null, array('disable_search_threshold' => 0 ));
 
 // Ignore Image fieldset for the layouts as we render it manually
 $this->ignore_fieldsets = array('images');