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1 <?php |
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2 /** |
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3 * Smarty Internal Plugin Compile Assign |
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4 * |
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5 * Compiles the {assign} tag |
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6 * |
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7 * @package Smarty |
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8 * @subpackage Compiler |
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9 * @author Uwe Tews |
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10 */ |
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11 |
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12 /** |
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13 * Smarty Internal Plugin Compile Assign Class |
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14 * |
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15 * @package Smarty |
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16 * @subpackage Compiler |
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17 */ |
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18 class Smarty_Internal_Compile_Assign extends Smarty_Internal_CompileBase { |
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19 |
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20 /** |
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21 * Compiles code for the {assign} tag |
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22 * |
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23 * @param array $args array with attributes from parser |
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24 * @param object $compiler compiler object |
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25 * @param array $parameter array with compilation parameter |
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26 * @return string compiled code |
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27 */ |
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28 public function compile($args, $compiler, $parameter) |
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29 { |
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30 // the following must be assigned at runtime because it will be overwritten in Smarty_Internal_Compile_Append |
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31 $this->required_attributes = array('var', 'value'); |
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32 $this->shorttag_order = array('var', 'value'); |
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33 $this->optional_attributes = array('scope'); |
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34 $_nocache = 'null'; |
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35 $_scope = Smarty::SCOPE_LOCAL; |
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36 // check and get attributes |
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37 $_attr = $this->getAttributes($compiler, $args); |
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38 // nocache ? |
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39 if ($compiler->tag_nocache || $compiler->nocache) { |
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40 $_nocache = 'true'; |
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41 // create nocache var to make it know for further compiling |
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42 if (isset($compiler->template->tpl_vars[trim($_attr['var'], "'")])) { |
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43 $compiler->template->tpl_vars[trim($_attr['var'], "'")]->nocache = true; |
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44 } else { |
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45 $compiler->template->tpl_vars[trim($_attr['var'], "'")] = new Smarty_variable(null, true); |
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46 } |
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47 } |
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48 // scope setup |
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49 if (isset($_attr['scope'])) { |
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50 $_attr['scope'] = trim($_attr['scope'], "'\""); |
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51 if ($_attr['scope'] == 'parent') { |
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52 $_scope = Smarty::SCOPE_PARENT; |
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53 } elseif ($_attr['scope'] == 'root') { |
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54 $_scope = Smarty::SCOPE_ROOT; |
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55 } elseif ($_attr['scope'] == 'global') { |
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56 $_scope = Smarty::SCOPE_GLOBAL; |
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57 } else { |
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58 $compiler->trigger_template_error('illegal value for "scope" attribute', $compiler->lex->taglineno); |
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59 } |
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60 } |
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61 // compiled output |
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62 if (isset($parameter['smarty_internal_index'])) { |
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63 $output = "<?php \$_smarty_tpl->createLocalArrayVariable($_attr[var], $_nocache, $_scope);\n\$_smarty_tpl->tpl_vars[$_attr[var]]->value$parameter[smarty_internal_index] = $_attr[value];"; |
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64 } else { |
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65 // implement Smarty2's behaviour of variables assigned by reference |
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66 if ($compiler->template->smarty instanceof SmartyBC) { |
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67 $output = "<?php if (isset(\$_smarty_tpl->tpl_vars[$_attr[var]])) {\$_smarty_tpl->tpl_vars[$_attr[var]] = clone \$_smarty_tpl->tpl_vars[$_attr[var]];"; |
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68 $output .= "\n\$_smarty_tpl->tpl_vars[$_attr[var]]->value = $_attr[value]; \$_smarty_tpl->tpl_vars[$_attr[var]]->nocache = $_nocache; \$_smarty_tpl->tpl_vars[$_attr[var]]->scope = $_scope;"; |
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69 $output .= "\n} else \$_smarty_tpl->tpl_vars[$_attr[var]] = new Smarty_variable($_attr[value], $_nocache, $_scope);"; |
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70 } else { |
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71 $output = "<?php \$_smarty_tpl->tpl_vars[$_attr[var]] = new Smarty_variable($_attr[value], $_nocache, $_scope);"; |
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72 } |
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73 } |
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74 if ($_scope == Smarty::SCOPE_PARENT) { |
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75 $output .= "\nif (\$_smarty_tpl->parent != null) \$_smarty_tpl->parent->tpl_vars[$_attr[var]] = clone \$_smarty_tpl->tpl_vars[$_attr[var]];"; |
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76 } elseif ($_scope == Smarty::SCOPE_ROOT || $_scope == Smarty::SCOPE_GLOBAL) { |
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77 $output .= "\n\$_ptr = \$_smarty_tpl->parent; while (\$_ptr != null) {\$_ptr->tpl_vars[$_attr[var]] = clone \$_smarty_tpl->tpl_vars[$_attr[var]]; \$_ptr = \$_ptr->parent; }"; |
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78 } |
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79 if ( $_scope == Smarty::SCOPE_GLOBAL) { |
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80 $output .= "\nSmarty::\$global_tpl_vars[$_attr[var]] = clone \$_smarty_tpl->tpl_vars[$_attr[var]];"; |
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81 } |
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82 $output .= '?>'; |
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83 return $output; |
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84 } |
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85 |
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86 } |
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87 |
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88 ?> |