diff options
Diffstat (limited to 'vendor/smarty/smarty/libs/sysplugins/smarty_internal_runtime_foreach.php')
-rw-r--r-- | vendor/smarty/smarty/libs/sysplugins/smarty_internal_runtime_foreach.php | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/vendor/smarty/smarty/libs/sysplugins/smarty_internal_runtime_foreach.php b/vendor/smarty/smarty/libs/sysplugins/smarty_internal_runtime_foreach.php new file mode 100644 index 000000000..1e8655d92 --- /dev/null +++ b/vendor/smarty/smarty/libs/sysplugins/smarty_internal_runtime_foreach.php @@ -0,0 +1,149 @@ +<?php + +/** + * Foreach Runtime Methods count(), init(), restore() + * + * @package Smarty + * @subpackage PluginsInternal + * @author Uwe Tews + * + */ +class Smarty_Internal_Runtime_Foreach +{ + + /** + * Stack of saved variables + * + * @var array + */ + private $stack = array(); + + /** + * Init foreach loop + * - save item and key variables, named foreach property data if defined + * - init item and key variables, named foreach property data if required + * - count total if required + * + * @param \Smarty_Internal_Template $tpl + * @param mixed $from values to loop over + * @param string $item variable name + * @param bool $needTotal flag if we need to count values + * @param null|string $key variable name + * @param null|string $name of named foreach + * @param array $properties of named foreach + * + * @return mixed $from + */ + public function init(Smarty_Internal_Template $tpl, $from, $item, $needTotal = false, $key = null, $name = null, + $properties = array()) + { + $saveVars = array(); + $total = null; + if (!is_array($from)) { + if (is_object($from)) { + $total = $this->count($from); + } else { + settype($from, 'array'); + } + } + if (!isset($total)) { + $total = empty($from) ? 0 : (($needTotal || isset($properties[ 'total' ])) ? count($from) : 1); + } + if (isset($tpl->tpl_vars[ $item ])) { + $saveVars[ 'item' ] = array($item, $tpl->tpl_vars[ $item ]); + } + $tpl->tpl_vars[ $item ] = new Smarty_Variable(null, $tpl->isRenderingCache); + if ($total === 0) { + $from = null; + } else { + if ($key) { + if (isset($tpl->tpl_vars[ $key ])) { + $saveVars[ 'key' ] = array($key, $tpl->tpl_vars[ $key ]); + } + $tpl->tpl_vars[ $key ] = new Smarty_Variable(null, $tpl->isRenderingCache); + } + } + if ($needTotal) { + $tpl->tpl_vars[ $item ]->total = $total; + } + if ($name) { + $namedVar = "__smarty_foreach_{$name}"; + if (isset($tpl->tpl_vars[ $namedVar ])) { + $saveVars[ 'named' ] = array($namedVar, $tpl->tpl_vars[ $namedVar ]); + } + $namedProp = array(); + if (isset($properties[ 'total' ])) { + $namedProp[ 'total' ] = $total; + } + if (isset($properties[ 'iteration' ])) { + $namedProp[ 'iteration' ] = 0; + } + if (isset($properties[ 'index' ])) { + $namedProp[ 'index' ] = - 1; + } + if (isset($properties[ 'show' ])) { + $namedProp[ 'show' ] = ($total > 0); + } + $tpl->tpl_vars[ $namedVar ] = new Smarty_Variable($namedProp); + } + $this->stack[] = $saveVars; + return $from; + } + + /** + * Restore saved variables + * + * will be called by {break n} or {continue n} for the required number of levels + * + * @param \Smarty_Internal_Template $tpl + * @param int $levels number of levels + */ + public function restore(Smarty_Internal_Template $tpl, $levels = 1) + { + while ($levels) { + $saveVars = array_pop($this->stack); + if (!empty($saveVars)) { + if (isset($saveVars[ 'item' ])) { + $item = &$saveVars[ 'item' ]; + $tpl->tpl_vars[ $item[ 0 ] ]->value = $item[ 1 ]->value; + } + if (isset($saveVars[ 'key' ])) { + $tpl->tpl_vars[ $saveVars[ 'key' ][ 0 ] ] = $saveVars[ 'key' ][ 1 ]; + } + if (isset($saveVars[ 'named' ])) { + $tpl->tpl_vars[ $saveVars[ 'named' ][ 0 ] ] = $saveVars[ 'named' ][ 1 ]; + } + } + $levels--; + } + } + + /* + * + * [util function] counts an array, arrayAccess/traversable or PDOStatement object + * + * @param mixed $value + * + * @return int the count for arrays and objects that implement countable, 1 for other objects that don't, and 0 + * for empty elements + */ + public function count($value) + { + if ($value instanceof Countable) { + return count($value); + } elseif ($value instanceof IteratorAggregate) { + // Note: getIterator() returns a Traversable, not an Iterator + // thus rewind() and valid() methods may not be present + return iterator_count($value->getIterator()); + } elseif ($value instanceof Iterator) { + return $value instanceof Generator ? 1 : iterator_count($value); + } elseif ($value instanceof PDOStatement) { + return $value->rowCount(); + } elseif ($value instanceof Traversable) { + return iterator_count($value); + } elseif ($value instanceof ArrayAccess) { + return $value->offsetExists(0) ? 1 : 0; + } + return count((array) $value); + } +} |