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348 lines
12 KiB
PHP
348 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_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');
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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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* @param array $parameter array with compilation parameter
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*
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* @return string compiled code
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* @throws \SmartyCompilerException
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*/
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public function compile($args, Smarty_Internal_TemplateCompilerBase $compiler, $parameter)
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{
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$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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$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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$this->isNamed = true;
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$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("'{$a}' and 'from' may not have same variable name '{$fromName}'",
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null, true);
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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_' . (isset($attributes['name']) ? $attributes['name'] : $attributes['item']) . '_' .
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$this->counter ++ . '_';
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$needIteration = false;
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// search for used tag attributes
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$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 = $this->matchResults['named'];
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}
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if (isset($itemAttr['last'])) {
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$needIteration = true;
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}
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if (isset($namedAttr['last'])) {
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$needIteration = true;
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}
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$keyTerm = '';
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if (isset($itemAttr['key'])) {
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$keyTerm = "{$itemVar}->key => ";
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} elseif (isset($attributes['key'])) {
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$keyTerm = "\$_smarty_tpl->tpl_vars['{$key}']->value => ";
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}
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$saveVars = array();
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$restoreVars = array();
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if ($this->isNamed) {
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$foreachVar = "\$_smarty_tpl->tpl_vars['__smarty_foreach_{$attributes['name']}']";
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if (!empty($namedAttr)) {
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$saveVars['saved'] = "isset({$foreachVar}) ? {$foreachVar} : false;";
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$restoreVars[] = "if ({$local}saved) {\n{$foreachVar} = {$local}saved;\n}\n";
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}
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}
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foreach (array('item', 'key') as $a) {
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if (isset($attributes[$a])) {
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$saveVars['saved_' . $a] =
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"isset(\$_smarty_tpl->tpl_vars['{$attributes[$a]}']) ? \$_smarty_tpl->tpl_vars['{$attributes[$a]}'] : false;";
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$restoreVars[] =
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"if ({$local}saved_{$a}) {\n\$_smarty_tpl->tpl_vars['{$attributes[$a]}'] = {$local}saved_{$a};\n}\n";
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}
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}
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$this->openTag($compiler, 'foreach',
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array('foreach', $compiler->nocache, $local, $restoreVars, $itemVar, true));
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// maybe nocache because of nocache variables
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$compiler->nocache = $compiler->nocache | $compiler->tag_nocache;
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// generate output code
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$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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foreach ($saveVars as $k => $code) {
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$output .= "{$local}{$k} = {$code}\n";
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}
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if (isset($itemAttr['show']) || isset($itemAttr['total']) || isset($namedAttr['total']) || isset($namedAttr['show']) || isset($itemAttr['last']) || isset($namedAttr['last'])) {
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$output .= "{$local}total = \$_smarty_tpl->smarty->ext->_foreach->count(\$_from);\n";
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}
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$output .= "{$itemVar} = new Smarty_Variable();\n";
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if (isset($itemAttr['show'])) {
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$output .= "{$itemVar}->show = ({$local}total > 0);\n";
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}
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if (isset($itemAttr['total'])) {
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$output .= "{$itemVar}->total= {$local}total;\n";
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}
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if ($this->isNamed) {
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$prop = array();
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if (isset($namedAttr['total'])) {
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$prop['total'] = "'total' => {$local}total";
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}
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if (isset($namedAttr['iteration'])) {
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$prop['iteration'] = "'iteration' => 0";
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}
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if (isset($namedAttr['index'])) {
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$prop['index'] = "'index' => -1";
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}
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if (isset($namedAttr['show'])) {
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$prop['show'] = "'show' => ({$local}total > 0)";
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}
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if (!empty($namedAttr)) {
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$_vars = 'array(' . join(', ', $prop) . ')';
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$output .= "{$foreachVar} = new Smarty_Variable({$_vars});\n";
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}
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}
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if (isset($attributes['key'])) {
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$output .= "\$_smarty_tpl->tpl_vars['{$key}'] = new Smarty_Variable();\n";
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}
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if (isset($namedAttr['first']) || isset($itemAttr['first'])) {
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$output .= "{$local}first = true;\n";
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}
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if (isset($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 .= "{$itemVar}->index=-1;\n";
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}
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if ($needIteration) {
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$output .= "{$local}iteration=0;\n";
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}
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$output .= "{$itemVar}->_loop = false;\n";
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$output .= "foreach (\$_from as {$keyTerm}{$itemVar}->value) {\n";
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$output .= "{$itemVar}->_loop = true;\n";
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if (isset($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 ($needIteration) {
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$output .= "{$local}iteration++;\n";
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}
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if (isset($itemAttr['first'])) {
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$output .= "{$itemVar}->first = {$local}first;\n";
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}
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if (isset($itemAttr['last'])) {
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$output .= "{$itemVar}->last = {$local}iteration == {$local}total;\n";
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}
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if ($this->isNamed) {
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if (isset($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'] = {$local}first;\n";
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}
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if (isset($namedAttr['last'])) {
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$output .= "{$foreachVar}->value['last'] = {$local}iteration == {$local}total;\n";
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}
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}
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if (isset($namedAttr['first']) || isset($itemAttr['first'])) {
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$output .= "{$local}first = false;\n";
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}
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$output .= "{$local}saved_local_item = {$itemVar};\n";
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$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 \Smarty_Internal_TemplateCompilerBase $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, Smarty_Internal_TemplateCompilerBase $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, $local, $restoreVars, $itemVar, $foo) = $this->closeTag($compiler, array('foreach'));
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$this->openTag($compiler, 'foreachelse', array('foreachelse', $nocache, $local, $restoreVars, $itemVar, false));
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$output = "<?php\n";
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$output .= "{$itemVar} = {$local}saved_local_item;\n";
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$output .= "}\n";
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$output .= "if (!{$itemVar}->_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 \Smarty_Internal_TemplateCompilerBase $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, Smarty_Internal_TemplateCompilerBase $compiler, $parameter)
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{
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$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($openTag, $compiler->nocache, $local, $restoreVars, $itemVar, $restore) =
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$this->closeTag($compiler, array('foreach', 'foreachelse'));
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$output = "<?php\n";
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if ($restore) {
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$output .= "{$itemVar} = {$local}saved_local_item;\n";
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}
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$output .= "}\n";
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foreach ($restoreVars as $restore) {
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$output .= $restore;
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}
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$output .= "?>";
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return $output;
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}
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}
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