From 49d54c0c3199fb8e380ce68f8fb08a308ddf56a7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jes=C3=BAs=20Eduardo?= <heckyel@hyperbola.info>
Date: Mon, 25 Dec 2017 16:58:41 -0500
Subject: =?UTF-8?q?migraci=C3=B3n=20mayor=20a=20smarty=20PHP?=
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---
 .../sysplugins/smarty_internal_runtime_foreach.php | 137 +++++++++++++++++++++
 1 file changed, 137 insertions(+)
 create mode 100644 smarty/sysplugins/smarty_internal_runtime_foreach.php

(limited to 'smarty/sysplugins/smarty_internal_runtime_foreach.php')

diff --git a/smarty/sysplugins/smarty_internal_runtime_foreach.php b/smarty/sysplugins/smarty_internal_runtime_foreach.php
new file mode 100644
index 0000000..bdefe69
--- /dev/null
+++ b/smarty/sysplugins/smarty_internal_runtime_foreach.php
@@ -0,0 +1,137 @@
+<?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())
+    {
+        $saveVars = array();
+        if (!is_array($from) && !is_object($from)) {
+            settype($from, 'array');
+        }
+        $total = ($needTotal || isset($properties[ 'total' ])) ? $this->count($from) : 1;
+        if (isset($tpl->tpl_vars[ $item ])) {
+            $saveVars[ $item ] = $tpl->tpl_vars[ $item ];
+        }
+        $tpl->tpl_vars[ $item ] = new Smarty_Variable(null, $tpl->isRenderingCache);
+        if (empty($from)) {
+            $from = null;
+            $total = 0;
+            if ($needTotal) {
+                $tpl->tpl_vars[ $item ]->total = 0;
+            }
+        } else {
+            if ($key) {
+                if (isset($tpl->tpl_vars[ $key ])) {
+                    $saveVars[ $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[ $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
+     *
+     * @param \Smarty_Internal_Template $tpl
+     */
+    public function restore(Smarty_Internal_Template $tpl)
+    {
+        foreach (array_pop($this->stack) as $k => $v) {
+            $tpl->tpl_vars[ $k ] = $v;
+        }
+    }
+
+    /*
+    *
+     * [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 (is_array($value) === true || $value instanceof Countable) {
+            return count($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 ($value instanceof Iterator) {
+            if ($value instanceof Generator) {
+                return 1;
+            }
+            return iterator_count($value);
+        } elseif ($value instanceof PDOStatement) {
+            return $value->rowCount();
+        } elseif ($value instanceof Traversable) {
+            return iterator_count($value);
+        } elseif ($value instanceof ArrayAccess) {
+            if ($value->offsetExists(0)) {
+                return 1;
+            }
+        } elseif (is_object($value)) {
+            return count($value);
+        }
+        return 0;
+    }
+}
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