primo commit

components/com_jem/models/fields/catoptions.php

@@ -0,0 +1,195 @@
+<?php
+/**
+ * @package    JEM
+ * @copyright  (C) 2013-2024 joomlaeventmanager.net
+ * @copyright  (C) 2005-2009 Christoph Lukes
+ * @license    https://www.gnu.org/licenses/gpl-3.0 GNU/GPL
+ */
+
+defined('JPATH_BASE') or die;
+
+use Joomla\CMS\Factory;
+use Joomla\CMS\Form\Field\ListField;
+use Joomla\CMS\Form\FormHelper;
+use Joomla\CMS\HTML\HTMLHelper;
+
+FormHelper::loadFieldClass('list');
+
+require_once __DIR__ . '/../../helpers/helper.php';
+
+/**
+ * CatOptions Field class.
+ */
+class JFormFieldCatOptions extends ListField
+{
+	/**
+	 * The category options field type.
+	 */
+	protected $type = 'CatOptions';
+
+
+	/**
+	 * Create Input
+	 * @see JFormField::getInput()
+	 */
+	public function getInput()
+	{
+		$attr = '';
+
+		// Initialize field attributes.
+        $attr .= !empty($this->class) ? ' class="' . $this->class . '"' : '';
+        $attr .= !empty($this->size) ? ' size="' . $this->size . '"' : '';
+        $attr .= $this->multiple ? ' multiple' : '';
+        $attr .= $this->required ? ' required aria-required="true"' : '';
+
+        // To avoid user's confusion, readonly="true" should imply disabled="true".
+        if ((string) $this->readonly == '1' || (string) $this->readonly == 'true' || (string) $this->disabled == '1'|| (string) $this->disabled == 'true')
+        {
+            $attr .= ' disabled="disabled"';
+        }
+
+        // Initialize JavaScript field attributes.
+        $attr .= $this->onchange ? ' onchange="' . $this->onchange . '"' : '';
+
+		// Output
+		$currentid = Factory::getApplication()->input->getInt('a_id');
+		if (!$currentid) { // special case: new event as copy of another one
+			$currentid = Factory::getApplication()->input->getInt('from_id');
+		}
+
+		// Get the field options.
+		$options = (array) $this->getOptions();
+
+        $db = Factory::getContainer()->get('DatabaseDriver');
+		$query = $db->getQuery(true);
+		$query->select('DISTINCT catid');
+		$query->from('#__jem_cats_event_relations');
+		$query->where('itemid = '. $db->quote($currentid));
+		$db->setQuery($query);
+		$selectedcats = $db->loadColumn();
+
+		// On new event we may have a category preferred to select.
+		if (empty($selectedcats) && !empty($this->element['prefer'])) {
+			$selectedcats = (array)$this->element['prefer'];
+		}
+
+		// Create a read-only list (no name) with a hidden input to store the value.
+		if ((string) $this->readonly == '1' || (string) $this->readonly == 'true')
+		{
+			$html[] = HTMLHelper::_('select.genericlist', $options, $this->name, trim($attr), 'value', 'text', $selectedcats,$this->id);
+			$html[] = '<input type="hidden" name="' . $this->name . '" value="' . htmlspecialchars($selectedcats, ENT_COMPAT, 'UTF-8') . '"/>';
+		}
+		else
+		// Create a regular list.
+		{
+			$html[] = HTMLHelper::_('select.genericlist', $options, $this->name, trim($attr), 'value', 'text', $selectedcats,$this->id);
+		}
+
+		return implode($html);
+	}
+
+	/**
+	 * Retrieve Options
+	 * @see ListField::getOptions()
+	 */
+	protected function getOptions()
+	{
+		$currentid = Factory::getApplication()->input->getInt('a_id');
+		$options = self::getCategories($currentid);
+		$options = array_values($options);
+
+		// Pad the option text with spaces using depth level as a multiplier
+		# the level has to be decreased as we are having a (invisible) root
+		# treename is generated by the function so let's use that one instead of the Joomla way
+
+		for ($i = 0, $n = count($options); $i < $n; $i++)
+		{
+			/*
+			if ($options[$i]->published == 1)
+			{
+				$options[$i]->text = str_repeat('- ', ($options[$i]->level - 1)) . $options[$i]->text;
+			}
+			else
+			{
+				$options[$i]->text = str_repeat('- ', ($options[$i]->level - 1)) . '[' . $options[$i]->text . ']';
+			}
+			*/
+
+			$options[$i]->text = $options[$i]->treename;
+		}
+
+		// Merge any additional options in the XML definition.
+		$options = array_merge(parent::getOptions(), $options);
+
+		return $options;
+	}
+
+	/**
+	 * logic to get the categories
+	 *
+	 * @access public
+	 * @return void
+	 */
+	public function getCategories($id)
+	{
+        $db = Factory::getContainer()->get('DatabaseDriver');
+		$user   = JemFactory::getUser();
+		$userid = (int) $user->get('id');
+
+		if (empty($id)) {
+			// for new events also show all categories user is allowed to see, disable non-useable categories
+			// (to show same list in both cases, and allow "unusable" parents for structuring)
+			$mitems = $user->getJemCategories('add', 'event', array('use_disable' => true));
+		} else {
+			$query = $db->getQuery(true);
+			$query = 'SELECT COUNT(*)'
+			       . ' FROM #__jem_events AS e'
+			       . ' WHERE e.id = ' . $db->quote($id)
+			       . '   AND e.created_by = ' . $db->quote($userid);
+			$db->setQuery($query);
+			$owner = $db->loadResult();
+
+			// on edit show all categories user is allowed to see, disable non-useable categories
+			$mitems = $user->getJemCategories(array('add', 'edit'), 'event', array('use_disable' => true, 'owner' => $owner));
+		}
+
+		if (!$mitems)
+		{
+			$mitems = array();
+			$children = array();
+
+			$parentid = 0;
+		}
+		else
+		{
+			$children = array();
+			// First pass - collect children
+			foreach ($mitems as $v)
+			{
+				$v->value = $v->id;
+				$v->text = $v->catname;
+				$pt = $v->parent_id;
+				$list = @$children[$pt] ? $children[$pt] : array();
+				array_push($list, $v);
+				$children[$pt] = $list;
+			}
+
+			// list childs of "root" which has no parent and normally id 1
+			$parentid = intval(@isset($children[0][0]->id) ? $children[0][0]->id : 1);
+		}
+
+		//get list of the items
+		$list = JemCategories::treerecurse($parentid, '', array(), $children, 9999, 0, 0);
+
+		// append orphaned categories
+		if (count($mitems) > count($list)) {
+			foreach ($children as $k => $v) {
+				if (($k > 1) && !array_key_exists($k, $list)) {
+					$list = JemCategories::treerecurse($k, '?&nbsp;', $list, $children, 999, 0, 0);
+				}
+			}
+		}
+
+		return $list;
+	}
+}