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<?php
/**
* @copyright Copyright (C) 2011 Simplify Your Web, Inc. All rights reserved.
* @license GNU General Public License version 3 or later; see LICENSE.txt
*/
// no direct access
defined('_JEXEC') or die;
class SYWFields
{
/**
* Cache for field parameters
* @var array
*/
protected static $fields = array();
/**
* Cache for field categories
* @var array
*/
protected static $fields_categories = array();
/**
* Get the values of a custom field for a specific item
*
* @param string $item_id
* @param string $field_id
* @param boolean $include_params - deprecated
* @return array or array of value arrays
*/
public static function getCustomFieldValues($field_id, $item_id, $include_params = false, $force_multiple_array = false)
{
$db = JFactory::getDbo();
$query = $db->getQuery(true);
if ($include_params) {
$query->select($db->quoteName(array('fv.value', 'f.label', 'f.name', 'f.params', 'f.fieldparams'), array('value', 'title', 'alias', 'fieldoptions', 'fieldparams')));
} else {
$query->select($db->quoteName('fv.value', 'value'));
}
$query->from($db->quoteName('#__fields_values', 'fv'));
$query->where($db->quoteName('fv.field_id').' = ' . $field_id);
$query->where($db->quoteName('fv.item_id').' = ' . $item_id);
if ($include_params) {
$query->join('LEFT', $db->quoteName('#__fields', 'f').' ON '.$db->quoteName('f.id').' = '.$db->quoteName('fv.field_id'));
}
$db->setQuery($query);
$results = array();
try {
$results = $db->loadAssocList();
} catch (RuntimeException $e) {
return null;
}
if (!$force_multiple_array && count($results) == 1) {
return $results[0];
}
return $results;
}
/**
* Get the parameters of a custom field
*
* @param integer $field_id
* @return array of parameters
*/
public static function getCustomFieldParams($field_id)
{
if (isset(static::$fields[$field_id])) {
return static::$fields[$field_id];
}
$db = JFactory::getDbo();
$query = $db->getQuery(true);
$query->select($db->quoteName(array('f.label', 'f.name', 'f.params', 'f.fieldparams', 'f.context', 'f.type', 'f.default_value'), array('title', 'alias', 'fieldoptions', 'fieldparams', 'context', 'type', 'default_value')));
$query->from($db->quoteName('#__fields', 'f'));
$query->where($db->quoteName('f.id').' = ' . $field_id);
$db->setQuery($query);
$results = array();
try {
$results = $db->loadAssoc();
static::$fields[$field_id] = $results;
} catch (RuntimeException $e) {
return null;
}
return $results;
}
/**
* Check if a custom field is restricted to one or several categories
*
* @param int $field_id
* @return array categories the field is restricted to - an empty array means the field is available in ALL categories
*/
public static function getAssignedCategories($field_id)
{
if (isset(static::$fields_categories[$field_id])) {
return static::$fields_categories[$field_id];
}
$db = JFactory::getDbo();
$query = $db->getQuery(true);
$query->select($db->quoteName('category_id'));
$query->from($db->quoteName('#__fields_categories'));
$query->where('field_id = ' . $field_id);
$db->setQuery($query);
$results = array();
try {
$results = $db->loadColumn();
static::$fields_categories[$field_id] = $results;
} catch (RuntimeException $e) {
//
}
return $results;
}
/**
* For a custom field that has a list of items, translates the options and returns the coma separated list of values ready for display
*
* @param object $field
*/
public static function prepareCustomFieldValueFromOptions(&$field)
{
$field_params = json_decode($field->fieldparams);
if (isset($field_params->options) && is_object($field_params->options)) {
$options = array();
foreach ($field_params->options as $key => $value) {
$options[$value->value] = $value->name;
}
$cfield_values = array();
if (!is_array($field->value)) {
$field->value = array($field->value);
}
foreach ($field->value as $result) {
if (!empty($options)) {
if (isset($options[$result]) && trim($options[$result]) !== '') {
if (JFactory::getLanguage()->hasKey($options[$result])) {
$cfield_values[] = JText::_($options[$result]);
} else {
$cfield_values[] = trim($options[$result]);
}
} else {
//$cfield_val[] = ''; // could happen, for instance 3 values then get down to 2
}
} else {
if (trim($result) !== '') {
$cfield_values[] = trim($result);
}
}
}
$field->value = implode(', ', $cfield_values);
}
}
/**
* Prepares the value of a custom field for display
*
* @param string $context
* @param object $item
* @param object $field
*/
public static function prepareCustomFieldValue($context, $item, &$field)
{
JPluginHelper::importPlugin('fields');
$dispatcher = JEventDispatcher::getInstance();
// Event allow plugins to modify the output of the field before it is prepared
$dispatcher->trigger('onCustomFieldsBeforePrepareField', array($context, $item, &$field));
// Gathering the value for the field
$prepared_value = $dispatcher->trigger('onCustomFieldsPrepareField', array($context, $item, &$field));
if (is_array($prepared_value)) {
$prepared_value = implode(' ', $prepared_value);
}
// Event allow plugins to modify the output of the prepared field
$dispatcher->trigger('onCustomFieldsAfterPrepareField', array($context, $item, $field, &$prepared_value));
$field->value = $prepared_value;
}
}
?>