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<?php
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/**
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* Smarty Internal Plugin Compile Foreach
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* Compiles the {foreach} {foreachelse} {/foreach} tags
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*
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* @package Smarty
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* @subpackage Compiler
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* @author Uwe Tews
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*/
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/**
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* Smarty Internal Plugin Compile Foreach Class
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*
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* @package Smarty
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* @subpackage Compiler
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*/
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class Smarty_Internal_Compile_Foreach extends Smarty_Internal_Compile_Private_ForeachSection
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{
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/**
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* Attribute definition: Overwrites base class.
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*
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* @var array
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* @see Smarty_Internal_CompileBase
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*/
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public $required_attributes = array('from', 'item');
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/**
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* Attribute definition: Overwrites base class.
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*
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* @var array
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* @see Smarty_Internal_CompileBase
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*/
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public $optional_attributes = array('name', 'key', 'properties');
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/**
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* Attribute definition: Overwrites base class.
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*
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* @var array
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* @see Smarty_Internal_CompileBase
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*/
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public $shorttag_order = array('from', 'item', 'key', 'name');
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/**
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* counter
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*
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* @var int
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*/
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public $counter = 0;
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/**
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* Name of this tag
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*
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* @var string
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*/
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public $tagName = 'foreach';
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/**
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* Valid properties of $smarty.foreach.name.xxx variable
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*
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* @var array
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*/
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public $nameProperties = array('first', 'last', 'index', 'iteration', 'show', 'total');
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/**
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* Valid properties of $item@xxx variable
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*
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* @var array
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*/
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public $itemProperties = array('first', 'last', 'index', 'iteration', 'show', 'total', 'key');
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/**
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* Flag if tag had name attribute
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*
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* @var bool
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*/
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public $isNamed = false;
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/**
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* Compiles code for the {foreach} tag
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*
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* @param array $args array with attributes from parser
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* @param \Smarty_Internal_TemplateCompilerBase $compiler compiler object
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*
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* @return string compiled code
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* @throws \SmartyCompilerException
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* @throws \SmartyException
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*/
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public function compile($args, Smarty_Internal_TemplateCompilerBase $compiler)
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{
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$compiler->loopNesting++;
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// init
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$this->isNamed = false;
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// check and get attributes
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$_attr = $this->getAttributes($compiler, $args);
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$from = $_attr[ 'from' ];
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$item = $compiler->getId($_attr[ 'item' ]);
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if ($item === false) {
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$item = $compiler->getVariableName($_attr[ 'item' ]);
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}
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$key = $name = null;
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$attributes = array('item' => $item);
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if (isset($_attr[ 'key' ])) {
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$key = $compiler->getId($_attr[ 'key' ]);
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if ($key === false) {
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$key = $compiler->getVariableName($_attr[ 'key' ]);
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}
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$attributes[ 'key' ] = $key;
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}
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if (isset($_attr[ 'name' ])) {
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$this->isNamed = true;
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$name = $attributes[ 'name' ] = $compiler->getId($_attr[ 'name' ]);
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}
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foreach ($attributes as $a => $v) {
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if ($v === false) {
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$compiler->trigger_template_error("'{$a}' attribute/variable has illegal value", null, true);
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}
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}
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$fromName = $compiler->getVariableName($_attr[ 'from' ]);
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if ($fromName) {
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foreach (array('item', 'key') as $a) {
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if (isset($attributes[ $a ]) && $attributes[ $a ] === $fromName) {
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$compiler->trigger_template_error(
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"'{$a}' and 'from' may not have same variable name '{$fromName}'",
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null,
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true
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);
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}
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}
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}
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$itemVar = "\$_smarty_tpl->tpl_vars['{$item}']";
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$local = '$__foreach_' . $attributes[ 'item' ] . '_' . $this->counter++ . '_';
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// search for used tag attributes
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$itemAttr = array();
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$namedAttr = array();
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$this->scanForProperties($attributes, $compiler);
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if (!empty($this->matchResults[ 'item' ])) {
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$itemAttr = $this->matchResults[ 'item' ];
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}
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if (!empty($this->matchResults[ 'named' ])) {
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$namedAttr = $this->matchResults[ 'named' ];
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}
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if (isset($_attr[ 'properties' ]) && preg_match_all('/[\'](.*?)[\']/', $_attr[ 'properties' ], $match)) {
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foreach ($match[ 1 ] as $prop) {
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if (in_array($prop, $this->itemProperties)) {
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$itemAttr[ $prop ] = true;
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} else {
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$compiler->trigger_template_error("Invalid property '{$prop}'", null, true);
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}
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}
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if ($this->isNamed) {
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foreach ($match[ 1 ] as $prop) {
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if (in_array($prop, $this->nameProperties)) {
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$nameAttr[ $prop ] = true;
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} else {
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$compiler->trigger_template_error("Invalid property '{$prop}'", null, true);
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}
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}
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}
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}
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if (isset($itemAttr[ 'first' ])) {
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$itemAttr[ 'index' ] = true;
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}
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if (isset($namedAttr[ 'first' ])) {
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$namedAttr[ 'index' ] = true;
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}
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if (isset($namedAttr[ 'last' ])) {
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$namedAttr[ 'iteration' ] = true;
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$namedAttr[ 'total' ] = true;
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}
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if (isset($itemAttr[ 'last' ])) {
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$itemAttr[ 'iteration' ] = true;
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$itemAttr[ 'total' ] = true;
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}
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if (isset($namedAttr[ 'show' ])) {
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$namedAttr[ 'total' ] = true;
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}
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if (isset($itemAttr[ 'show' ])) {
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$itemAttr[ 'total' ] = true;
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}
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$keyTerm = '';
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if (isset($attributes[ 'key' ])) {
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$keyTerm = "\$_smarty_tpl->tpl_vars['{$key}']->value => ";
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}
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if (isset($itemAttr[ 'key' ])) {
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$keyTerm = "{$itemVar}->key => ";
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}
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if ($this->isNamed) {
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$foreachVar = "\$_smarty_tpl->tpl_vars['__smarty_foreach_{$attributes['name']}']";
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}
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$needTotal = isset($itemAttr[ 'total' ]);
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// Register tag
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$this->openTag(
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$compiler,
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'foreach',
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array('foreach', $compiler->nocache, $local, $itemVar, empty($itemAttr) ? 1 : 2)
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);
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// maybe nocache because of nocache variables
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$compiler->nocache = $compiler->nocache | $compiler->tag_nocache;
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// generate output code
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$output = "<?php\n";
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$output .= "\$_from = \$_smarty_tpl->smarty->ext->_foreach->init(\$_smarty_tpl, $from, " .
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var_export($item, true);
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if ($name || $needTotal || $key) {
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$output .= ', ' . var_export($needTotal, true);
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}
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if ($name || $key) {
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$output .= ', ' . var_export($key, true);
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}
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if ($name) {
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$output .= ', ' . var_export($name, true) . ', ' . var_export($namedAttr, true);
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}
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$output .= ");\n";
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if (isset($itemAttr[ 'show' ])) {
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$output .= "{$itemVar}->show = ({$itemVar}->total > 0);\n";
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}
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if (isset($itemAttr[ 'iteration' ])) {
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$output .= "{$itemVar}->iteration = 0;\n";
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}
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if (isset($itemAttr[ 'index' ])) {
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$output .= "{$itemVar}->index = -1;\n";
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}
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$output .= "{$itemVar}->do_else = true;\n";
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$output .= "if (\$_from !== null) foreach (\$_from as {$keyTerm}{$itemVar}->value) {\n";
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$output .= "{$itemVar}->do_else = false;\n";
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if (isset($attributes[ 'key' ]) && isset($itemAttr[ 'key' ])) {
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$output .= "\$_smarty_tpl->tpl_vars['{$key}']->value = {$itemVar}->key;\n";
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}
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if (isset($itemAttr[ 'iteration' ])) {
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$output .= "{$itemVar}->iteration++;\n";
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}
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if (isset($itemAttr[ 'index' ])) {
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$output .= "{$itemVar}->index++;\n";
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}
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if (isset($itemAttr[ 'first' ])) {
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$output .= "{$itemVar}->first = !{$itemVar}->index;\n";
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}
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if (isset($itemAttr[ 'last' ])) {
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$output .= "{$itemVar}->last = {$itemVar}->iteration === {$itemVar}->total;\n";
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}
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if (isset($foreachVar)) {
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if (isset($namedAttr[ 'iteration' ])) {
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$output .= "{$foreachVar}->value['iteration']++;\n";
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}
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if (isset($namedAttr[ 'index' ])) {
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$output .= "{$foreachVar}->value['index']++;\n";
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}
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if (isset($namedAttr[ 'first' ])) {
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$output .= "{$foreachVar}->value['first'] = !{$foreachVar}->value['index'];\n";
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}
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if (isset($namedAttr[ 'last' ])) {
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$output .= "{$foreachVar}->value['last'] = {$foreachVar}->value['iteration'] === {$foreachVar}->value['total'];\n";
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}
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}
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if (!empty($itemAttr)) {
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$output .= "{$local}saved = {$itemVar};\n";
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}
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$output .= '?>';
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return $output;
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}
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/**
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* Compiles code for to restore saved template variables
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*
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* @param int $levels number of levels to restore
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*
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* @return string compiled code
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*/
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public function compileRestore($levels)
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{
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return "\$_smarty_tpl->smarty->ext->_foreach->restore(\$_smarty_tpl, {$levels});";
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}
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}
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/**
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* Smarty Internal Plugin Compile Foreachelse Class
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*
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* @package Smarty
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* @subpackage Compiler
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*/
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class Smarty_Internal_Compile_Foreachelse extends Smarty_Internal_CompileBase
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{
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/**
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* Compiles code for the {foreachelse} tag
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*
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* @param array $args array with attributes from parser
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* @param \Smarty_Internal_TemplateCompilerBase $compiler compiler object
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*
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* @return string compiled code
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*/
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public function compile($args, Smarty_Internal_TemplateCompilerBase $compiler)
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{
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// check and get attributes
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$_attr = $this->getAttributes($compiler, $args);
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list($openTag, $nocache, $local, $itemVar, $restore) = $this->closeTag($compiler, array('foreach'));
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$this->openTag($compiler, 'foreachelse', array('foreachelse', $nocache, $local, $itemVar, 0));
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$output = "<?php\n";
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if ($restore === 2) {
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$output .= "{$itemVar} = {$local}saved;\n";
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}
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$output .= "}\nif ({$itemVar}->do_else) {\n?>";
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return $output;
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}
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}
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/**
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* Smarty Internal Plugin Compile Foreachclose Class
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*
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* @package Smarty
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* @subpackage Compiler
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*/
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class Smarty_Internal_Compile_Foreachclose extends Smarty_Internal_CompileBase
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{
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/**
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* Compiles code for the {/foreach} tag
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*
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* @param array $args array with attributes from parser
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* @param \Smarty_Internal_TemplateCompilerBase $compiler compiler object
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*
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* @return string compiled code
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* @throws \SmartyCompilerException
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*/
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public function compile($args, Smarty_Internal_TemplateCompilerBase $compiler)
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{
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$compiler->loopNesting--;
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// must endblock be nocache?
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if ($compiler->nocache) {
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$compiler->tag_nocache = true;
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}
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list(
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$openTag, $compiler->nocache, $local, $itemVar, $restore
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) = $this->closeTag($compiler, array('foreach', 'foreachelse'));
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$output = "<?php\n";
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if ($restore === 2) {
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$output .= "{$itemVar} = {$local}saved;\n";
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}
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$output .= "}\n";
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/* @var Smarty_Internal_Compile_Foreach $foreachCompiler */
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$foreachCompiler = $compiler->getTagCompiler('foreach');
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$output .= $foreachCompiler->compileRestore(1);
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$output .= "?>";
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return $output;
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}
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}
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