1 <?php
2 /**
3 * Smarty Internal Plugin Compile Assign
4 *
5 * Compiles the {assign} tag
6 *
7 * @package Smarty
8 * @subpackage Compiler
9 * @author Uwe Tews
10 */
12 /**
13 * Smarty Internal Plugin Compile Assign Class
14 *
15 * @package Smarty
16 * @subpackage Compiler
17 */
18 class Smarty_Internal_Compile_Assign extends Smarty_Internal_CompileBase {
20 /**
21 * Compiles code for the {assign} tag
22 *
23 * @param array $args array with attributes from parser
24 * @param object $compiler compiler object
25 * @param array $parameter array with compilation parameter
26 * @return string compiled code
27 */
28 public function compile($args, $compiler, $parameter)
29 {
30 // the following must be assigned at runtime because it will be overwritten in Smarty_Internal_Compile_Append
31 $this->required_attributes = array('var', 'value');
32 $this->shorttag_order = array('var', 'value');
33 $this->optional_attributes = array('scope');
34 $_nocache = 'null';
35 $_scope = Smarty::SCOPE_LOCAL;
36 // check and get attributes
37 $_attr = $this->getAttributes($compiler, $args);
38 // nocache ?
39 if ($compiler->tag_nocache || $compiler->nocache) {
40 $_nocache = 'true';
41 // create nocache var to make it know for further compiling
42 $compiler->template->tpl_vars[trim($_attr['var'], "'")] = new Smarty_variable(null, true);
43 }
44 // scope setup
45 if (isset($_attr['scope'])) {
46 $_attr['scope'] = trim($_attr['scope'], "'\"");
47 if ($_attr['scope'] == 'parent') {
48 $_scope = Smarty::SCOPE_PARENT;
49 } elseif ($_attr['scope'] == 'root') {
50 $_scope = Smarty::SCOPE_ROOT;
51 } elseif ($_attr['scope'] == 'global') {
52 $_scope = Smarty::SCOPE_GLOBAL;
53 } else {
54 $compiler->trigger_template_error('illegal value for "scope" attribute', $compiler->lex->taglineno);
55 }
56 }
57 // compiled output
58 if (isset($parameter['smarty_internal_index'])) {
59 $output = "<?php \$_smarty_tpl->createLocalArrayVariable($_attr[var], $_nocache, $_scope);\n\$_smarty_tpl->tpl_vars[$_attr[var]]->value$parameter[smarty_internal_index] = $_attr[value];";
60 } else {
61 $output = "<?php \$_smarty_tpl->tpl_vars[$_attr[var]] = new Smarty_variable($_attr[value], $_nocache, $_scope);";
62 }
63 if ($_scope == Smarty::SCOPE_PARENT) {
64 $output .= "\nif (\$_smarty_tpl->parent != null) \$_smarty_tpl->parent->tpl_vars[$_attr[var]] = clone \$_smarty_tpl->tpl_vars[$_attr[var]];";
65 } elseif ($_scope == Smarty::SCOPE_ROOT || $_scope == Smarty::SCOPE_GLOBAL) {
66 $output .= "\n\$_ptr = \$_smarty_tpl->parent; while (\$_ptr != null) {\$_ptr->tpl_vars[$_attr[var]] = clone \$_smarty_tpl->tpl_vars[$_attr[var]]; \$_ptr = \$_ptr->parent; }";
67 }
68 if ( $_scope == Smarty::SCOPE_GLOBAL) {
69 $output .= "\nSmarty::\$global_tpl_vars[$_attr[var]] = clone \$_smarty_tpl->tpl_vars[$_attr[var]];";
70 }
71 $output .= '?>';
72 return $output;
73 }
75 }
77 ?>