mirror of
https://github.com/smarty-php/smarty.git
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289 lines
12 KiB
PHP
289 lines
12 KiB
PHP
<?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_CompileBase
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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');
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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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* 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 object $compiler compiler object
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* @param array $parameter array with compilation parameter
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*
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* @return string compiled code
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*/
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public function compile($args, $compiler, $parameter)
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{
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// check and get attributes
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$_attr = $this->getAttributes($compiler, $args);
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$from = $_attr['from'];
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$item = $_attr['item'];
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if (!strncmp("\$_smarty_tpl->tpl_vars[$item]", $from, strlen($item) + 24)) {
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$compiler->trigger_template_error("item variable {$item} may not be the same variable as at 'from'", $compiler->lex->taglineno);
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}
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if (isset($_attr['key'])) {
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$key = $_attr['key'];
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} else {
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$key = null;
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}
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$this->openTag($compiler, 'foreach', array('foreach', $compiler->nocache, $item, $key, true));
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// maybe nocache because of nocache variables
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$compiler->nocache = $compiler->nocache | $compiler->tag_nocache;
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if (isset($_attr['name'])) {
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$name = trim($_attr['name'], '\'"');
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$has_name = true;
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$SmartyVarName = "\$smarty.foreach.{$name}.";
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} else {
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$has_name = false;
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}
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$ItemVarName = '$' . trim($item, '\'"') . '@';
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// evaluates which Smarty variables and properties have to be computed
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if ($has_name) {
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$useSmartyForeach = $usesSmartyFirst = strpos($compiler->lex->data, $SmartyVarName . 'first') !== false;
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$useSmartyForeach = ($usesSmartyLast = strpos($compiler->lex->data, $SmartyVarName . 'last') !== false) || $useSmartyForeach;
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$useSmartyForeach = ($usesSmartyIndex = strpos($compiler->lex->data, $SmartyVarName . 'index') !== false) || $useSmartyForeach;
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$useSmartyForeach = ($usesSmartyIteration = (!$usesSmartyIndex && ($usesSmartyFirst || $usesSmartyLast)) || strpos($compiler->lex->data, $SmartyVarName . 'iteration') !== false) || $useSmartyForeach;
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$useSmartyForeach = ($usesSmartyShow = strpos($compiler->lex->data, $SmartyVarName . 'show') !== false) || $useSmartyForeach;
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$useSmartyForeach = ($usesSmartyTotal = $usesSmartyLast ||strpos($compiler->lex->data, $SmartyVarName . 'total') !== false) || $useSmartyForeach;
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} else {
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$usesSmartyFirst = false;
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$usesSmartyLast = false;
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$usesSmartyTotal = false;
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$usesSmartyShow = false;
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$useSmartyForeach = false;
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}
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$usesPropKey = strpos($compiler->lex->data, $ItemVarName . 'key') !== false;
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$usesPropFirst = strpos($compiler->lex->data, $ItemVarName . 'first') !== false;
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$usesPropLast = strpos($compiler->lex->data, $ItemVarName . 'last') !== false;
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$usesPropIndex = strpos($compiler->lex->data, $ItemVarName . 'index') !== false;
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$usesPropIteration = (!$usesPropIndex && ($usesPropFirst || $usesPropLast)) || strpos($compiler->lex->data, $ItemVarName . 'iteration') !== false;
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$usesPropShow = strpos($compiler->lex->data, $ItemVarName . 'show') !== false;
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$usesPropTotal = $usesPropLast || strpos($compiler->lex->data, $ItemVarName . 'total') !== false;
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$keyTerm = '';
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if ($usesPropKey) {
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$keyTerm = "\$_smarty_tpl->tpl_vars[$item]->key => ";
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} elseif ($key != null) {
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$keyTerm = "\$_smarty_tpl->tpl_vars[$key]->value => ";
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}
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// generate output code
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$output = "<?php\n";
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$output .= "\$_from = $from;\n";
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$output .= "if (!is_array(\$_from) && !is_object(\$_from)) {\n";
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$output .= "settype(\$_from, 'array');\n";
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$output .= "}\n";
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$output .= "\$_smarty_tpl->tpl_vars[$item] = new Smarty_Variable;\n";
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$output .= "\$_smarty_tpl->tpl_vars[$item]->_loop = false;\n";
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if ($key != null) {
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$output .= "\$_smarty_tpl->tpl_vars[$key] = new Smarty_Variable;\n";
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}
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if ($usesPropTotal) {
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$output .= "\$_smarty_tpl->tpl_vars[$item]->total= \$_smarty_tpl->_count(\$_from);\n";
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}
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if ($usesPropIteration) {
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$output .= "\$_smarty_tpl->tpl_vars[$item]->iteration=0;\n";
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}
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if ($usesPropIndex) {
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$output .= "\$_smarty_tpl->tpl_vars[$item]->index=-1;\n";
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}
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if ($usesPropShow) {
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if ($usesPropTotal) {
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$output .= "\$_smarty_tpl->tpl_vars[$item]->show = (\$_smarty_tpl->tpl_vars[$item]->total > 0);\n";
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} else {
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$output .= "\$_smarty_tpl->tpl_vars[$item]->show = (\$_smarty_tpl->_count(\$_from) > 0);\n";
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}
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}
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if ($has_name) {
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$prop = array();
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if ($usesSmartyTotal) {
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$prop['total'] = "'total' => ";
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$prop['total'] .= $usesSmartyShow ? '$total = ' : '';
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$prop['total'] .= '$_smarty_tpl->_count($_from)';
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}
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if ($usesSmartyIteration) {
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$prop['iteration'] = "'iteration' => 0";
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}
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if ($usesSmartyIndex) {
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$prop['index'] = "'index' => -1";
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}
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if ($usesSmartyShow) {
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$prop['show'] = "'show' => ";
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if ($usesSmartyTotal) {
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$prop['show'] .= "(\$total > 0)";
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} else {
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$prop['show'] .= "(\$_smarty_tpl->_count(\$_from) > 0)";
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}
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}
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if ($useSmartyForeach) {
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$_vars = 'array(' . join(', ', $prop) . ')';
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$foreachVar = "'__foreach_{$name}'";
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$output .= "\$_smarty_tpl->tpl_vars[$foreachVar] = new Smarty_Variable({$_vars});\n";
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}
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}
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$output .= "foreach (\$_from as {$keyTerm}\$_smarty_tpl->tpl_vars[$item]->value) {\n";
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$output .= "\$_smarty_tpl->tpl_vars[$item]->_loop = true;\n";
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if ($key != null && $usesPropKey) {
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$output .= "\$_smarty_tpl->tpl_vars[$key]->value = \$_smarty_tpl->tpl_vars[$item]->key;\n";
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}
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if ($usesPropIteration) {
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$output .= "\$_smarty_tpl->tpl_vars[$item]->iteration++;\n";
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}
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if ($usesPropIndex) {
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$output .= "\$_smarty_tpl->tpl_vars[$item]->index++;\n";
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}
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if ($usesPropFirst) {
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if ($usesPropIndex) {
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$output .= "\$_smarty_tpl->tpl_vars[$item]->first = \$_smarty_tpl->tpl_vars[$item]->index == 0;\n";
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} else {
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$output .= "\$_smarty_tpl->tpl_vars[$item]->first = \$_smarty_tpl->tpl_vars[$item]->iteration == 1;\n";
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}
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}
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if ($usesPropLast) {
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if ($usesPropIndex) {
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$output .= "\$_smarty_tpl->tpl_vars[$item]->last = \$_smarty_tpl->tpl_vars[$item]->index + 1 == \$_smarty_tpl->tpl_vars[$item]->total;\n";
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} else {
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$output .= "\$_smarty_tpl->tpl_vars[$item]->last = \$_smarty_tpl->tpl_vars[$item]->iteration == \$_smarty_tpl->tpl_vars[$item]->total;\n";
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}
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}
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if ($has_name) {
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if ($usesSmartyIteration) {
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$output .= "\$_smarty_tpl->tpl_vars[$foreachVar]->value['iteration']++;\n";
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}
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if ($usesSmartyIndex) {
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$output .= "\$_smarty_tpl->tpl_vars[$foreachVar]->value['index']++;\n";
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}
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if ($usesSmartyFirst) {
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if ($usesSmartyIndex) {
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$output .= "\$_smarty_tpl->tpl_vars[$foreachVar]->value['first'] = \$_smarty_tpl->tpl_vars[$foreachVar]->value['index'] == 0;\n";
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} else {
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$output .= "\$_smarty_tpl->tpl_vars[$foreachVar]->value['first'] = \$_smarty_tpl->tpl_vars[$foreachVar]->value['iteration'] == 1;\n";
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}
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}
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if ($usesSmartyLast) {
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if ($usesSmartyIndex) {
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$output .= "\$_smarty_tpl->tpl_vars[$foreachVar]->value['last'] = \$_smarty_tpl->tpl_vars[$foreachVar]->value['index'] + 1 == \$_smarty_tpl->tpl_vars[$foreachVar]->value['total'];\n";
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} else {
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$output .= "\$_smarty_tpl->tpl_vars[$foreachVar]->value['last'] = \$_smarty_tpl->tpl_vars[$foreachVar]->value['iteration'] == \$_smarty_tpl->tpl_vars[$foreachVar]->value['total'];\n";
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}
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}
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}
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$itemName = trim($item,"'\"");
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$output .= "\$foreach_{$itemName}_Sav = \$_smarty_tpl->tpl_vars[$item];\n";
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$output .= "?>";
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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 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 object $compiler compiler object
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* @param array $parameter array with compilation parameter
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*
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* @return string compiled code
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*/
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public function compile($args, $compiler, $parameter)
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{
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// check and get attributes
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$_attr = $this->getAttributes($compiler, $args);
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list($openTag, $nocache, $item, $key, $foo) = $this->closeTag($compiler, array('foreach'));
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$this->openTag($compiler, 'foreachelse', array('foreachelse', $nocache, $item, $key, false));
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$itemName = trim($item,"'\"");
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$output = "<?php\n";
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$output .= "\$_smarty_tpl->tpl_vars[$item] = \$foreach_{$itemName}_Sav;\n";
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$output .= "}\n";
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$output .= "if (!\$_smarty_tpl->tpl_vars[$item]->_loop) {\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 object $compiler compiler object
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* @param array $parameter array with compilation parameter
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*
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* @return string compiled code
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*/
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public function compile($args, $compiler, $parameter)
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{
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// check and get attributes
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$_attr = $this->getAttributes($compiler, $args);
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// must endblock be nocache?
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if ($compiler->nocache) {
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$compiler->tag_nocache = true;
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}
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list($openTag, $compiler->nocache, $item, $key, $restore) = $this->closeTag($compiler, array('foreach', 'foreachelse'));
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$itemName = trim($item,"'\"");
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$output = "<?php\n";
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if ($restore) {
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$output .= "\$_smarty_tpl->tpl_vars[$item] = \$foreach_{$itemName}_Sav;\n";
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}
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$output .= "}\n?>";
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return $output;
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}
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}
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