1 <?php
2 /**
3 * Smarty Internal Plugin Compile Foreach
4 *
5 * Compiles the {foreach} {foreachelse} {/foreach} tags
6 *
7 * @package Smarty
8 * @subpackage Compiler
9 * @author Uwe Tews
10 */
11 /**
12 * Smarty Internal Plugin Compile Foreach Class
13 */
14 class Smarty_Internal_Compile_Foreach extends Smarty_Internal_CompileBase {
15 /**
16 * Compiles code for the {foreach} tag
17 *
18 * @param array $args array with attributes from parser
19 * @param object $compiler compiler object
20 * @return string compiled code
21 */
22 public function compile($args, $compiler)
23 {
24 $this->compiler = $compiler;
25 $this->required_attributes = array('from', 'item');
26 $this->optional_attributes = array('name', 'key');
27 $tpl = $compiler->template;
28 // check and get attributes
29 $_attr = $this->_get_attributes($args);
31 $this->_open_tag('foreach', array('foreach', $this->compiler->nocache));
32 // maybe nocache because of nocache variables
33 $this->compiler->nocache = $this->compiler->nocache | $this->compiler->tag_nocache;
35 $from = $_attr['from'];
36 $item = $_attr['item'];
38 if (isset($_attr['key'])) {
39 $key = $_attr['key'];
40 } else {
41 $key = null;
42 }
44 if (isset($_attr['name'])) {
45 $name = $_attr['name'];
46 $has_name = true;
47 $SmartyVarName = '$smarty.foreach.' . trim($name, '\'"') . '.';
48 } else {
49 $name = null;
50 $has_name = false;
51 }
52 $ItemVarName = '$' . trim($item, '\'"') . '@';
53 // evaluates which Smarty variables and properties have to be computed
54 if ($has_name) {
55 $usesSmartyFirst = strpos($tpl->template_source, $SmartyVarName . 'first') !== false;
56 $usesSmartyLast = strpos($tpl->template_source, $SmartyVarName . 'last') !== false;
57 $usesSmartyIndex = strpos($tpl->template_source, $SmartyVarName . 'index') !== false;
58 $usesSmartyIteration = strpos($tpl->template_source, $SmartyVarName . 'iteration') !== false;
59 $usesSmartyShow = strpos($tpl->template_source, $SmartyVarName . 'show') !== false;
60 $usesSmartyTotal = $usesSmartyLast || strpos($tpl->template_source, $SmartyVarName . 'total') !== false;
61 } else {
62 $usesSmartyFirst = false;
63 $usesSmartyLast = false;
64 $usesSmartyTotal = false;
65 }
67 $usesPropFirst = $usesSmartyFirst || strpos($tpl->template_source, $ItemVarName . 'first') !== false;
68 $usesPropLast = $usesSmartyLast || strpos($tpl->template_source, $ItemVarName . 'last') !== false;
69 $usesPropIndex = $usesPropFirst || strpos($tpl->template_source, $ItemVarName . 'index') !== false;
70 $usesPropIteration = $usesPropLast || strpos($tpl->template_source, $ItemVarName . 'iteration') !== false;
71 $usesPropShow = strpos($tpl->template_source, $ItemVarName . 'show') !== false;
72 $usesPropTotal = $usesSmartyTotal || $usesPropLast || strpos($tpl->template_source, $ItemVarName . 'total') !== false;
73 // generate output code
74 $output = "<?php ";
75 $output .= " \$_smarty_tpl->tpl_vars[$item] = new Smarty_Variable;\n";
76 $compiler->local_var[$item] = true;
77 if ($key != null) {
78 $output .= " \$_smarty_tpl->tpl_vars[$key] = new Smarty_Variable;\n";
79 $compiler->local_var[$key] = true;
80 }
81 $output .= " \$_from = $from; if (!is_array(\$_from) && !is_object(\$_from)) { settype(\$_from, 'array');}\n";
82 if ($usesPropTotal) {
83 $output .= " \$_smarty_tpl->tpl_vars[$item]->total=count(\$_from);\n";
84 }
85 if ($usesPropIteration) {
86 $output .= " \$_smarty_tpl->tpl_vars[$item]->iteration=0;\n";
87 }
88 if ($usesPropIndex) {
89 $output .= " \$_smarty_tpl->tpl_vars[$item]->index=-1;\n";
90 }
91 if ($has_name) {
92 if ($usesSmartyTotal) {
93 $output .= " \$_smarty_tpl->tpl_vars['smarty']->value['foreach'][$name]['total'] = \$_smarty_tpl->tpl_vars[$item]->total;\n";
94 }
95 if ($usesSmartyIteration) {
96 $output .= " \$_smarty_tpl->tpl_vars['smarty']->value['foreach'][$name]['iteration']=0;\n";
97 }
98 if ($usesSmartyIndex) {
99 $output .= " \$_smarty_tpl->tpl_vars['smarty']->value['foreach'][$name]['index']=-1;\n";
100 }
101 }
102 $output .= "if (count(\$_from) > 0){\n";
103 $output .= " foreach (\$_from as \$_smarty_tpl->tpl_vars[$item]->key => \$_smarty_tpl->tpl_vars[$item]->value){\n";
104 if ($key != null) {
105 $output .= " \$_smarty_tpl->tpl_vars[$key]->value = \$_smarty_tpl->tpl_vars[$item]->key;\n";
106 }
107 if ($usesPropIteration) {
108 $output .= " \$_smarty_tpl->tpl_vars[$item]->iteration++;\n";
109 }
110 if ($usesPropIndex) {
111 $output .= " \$_smarty_tpl->tpl_vars[$item]->index++;\n";
112 }
113 if ($usesPropFirst) {
114 $output .= " \$_smarty_tpl->tpl_vars[$item]->first = \$_smarty_tpl->tpl_vars[$item]->index === 0;\n";
115 }
116 if ($usesPropLast) {
117 $output .= " \$_smarty_tpl->tpl_vars[$item]->last = \$_smarty_tpl->tpl_vars[$item]->iteration === \$_smarty_tpl->tpl_vars[$item]->total;\n";
118 }
119 if ($has_name) {
120 if ($usesSmartyFirst) {
121 $output .= " \$_smarty_tpl->tpl_vars['smarty']->value['foreach'][$name]['first'] = \$_smarty_tpl->tpl_vars[$item]->first;\n";
122 }
123 if ($usesSmartyIteration) {
124 $output .= " \$_smarty_tpl->tpl_vars['smarty']->value['foreach'][$name]['iteration']++;\n";
125 }
126 if ($usesSmartyIndex) {
127 $output .= " \$_smarty_tpl->tpl_vars['smarty']->value['foreach'][$name]['index']++;\n";
128 }
129 if ($usesSmartyLast) {
130 $output .= " \$_smarty_tpl->tpl_vars['smarty']->value['foreach'][$name]['last'] = \$_smarty_tpl->tpl_vars[$item]->last;\n";
131 }
132 }
133 $output .= "?>";
135 return $output;
136 }
137 }
139 /**
140 * Smarty Internal Plugin Compile Foreachelse Class
141 */
142 class Smarty_Internal_Compile_Foreachelse extends Smarty_Internal_CompileBase {
143 /**
144 * Compiles code for the {foreachelse} tag
145 *
146 * @param array $args array with attributes from parser
147 * @param object $compiler compiler object
148 * @return string compiled code
149 */
150 public function compile($args, $compiler)
151 {
152 $this->compiler = $compiler;
153 // check and get attributes
154 $_attr = $this->_get_attributes($args);
156 list($_open_tag, $nocache) = $this->_close_tag(array('foreach'));
157 $this->_open_tag('foreachelse', array('foreachelse', $nocache));
159 return "<?php }} else { ?>";
160 }
161 }
163 /**
164 * Smarty Internal Plugin Compile Foreachclose Class
165 */
166 class Smarty_Internal_Compile_Foreachclose extends Smarty_Internal_CompileBase {
167 /**
168 * Compiles code for the {/foreach} tag
169 *
170 * @param array $args array with attributes from parser
171 * @param object $compiler compiler object
172 * @return string compiled code
173 */
174 public function compile($args, $compiler)
175 {
176 $this->compiler = $compiler;
177 // check and get attributes
178 $_attr = $this->_get_attributes($args);
179 // must endblock be nocache?
180 if ($this->compiler->nocache) {
181 $this->compiler->tag_nocache = true;
182 }
184 list($_open_tag, $this->compiler->nocache) = $this->_close_tag(array('foreach', 'foreachelse'));
186 if ($_open_tag == 'foreachelse')
187 return "<?php } ?>";
188 else
189 return "<?php }} ?>";
190 }
191 }
193 ?>