mirror of
https://github.com/smarty-php/smarty.git
synced 2025-11-03 22:01:36 +01:00
7afa8dce66
- fixed bug with double quoted name attribute at {insert} tag
- reenabled assign_by_ref and append_by_ref methodes
432 lines
14 KiB
PHP
432 lines
14 KiB
PHP
<?php
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/**
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* Smarty Internal Plugin TemplateBase
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*
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* This file contains the basic classes and methodes for template and variable creation
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*
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* @package Smarty
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* @subpackage Templates
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* @author Uwe Tews
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*/
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/**
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* Base class with template and variable methodes
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*/
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class Smarty_Internal_TemplateBase {
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// class used for templates
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public $template_class = 'Smarty_Internal_Template';
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/**
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* assigns a Smarty variable
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*
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* @param array $ |string $tpl_var the template variable name(s)
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* @param mixed $value the value to assign
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* @param boolean $nocache if true any output of this variable will be not cached
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* @param boolean $scope the scope the variable will have (local,parent or root)
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*/
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public function assign($tpl_var, $value = null, $nocache = false, $scope = SMARTY_LOCAL_SCOPE)
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{
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if (is_array($tpl_var)) {
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foreach ($tpl_var as $_key => $_val) {
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if ($_key != '') {
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$this->check_tplvar($_key);
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$this->tpl_vars[$_key] = new Smarty_variable($_val, $nocache, $scope);
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}
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}
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} else {
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if ($tpl_var != '') {
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$this->check_tplvar($tpl_var);
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$this->tpl_vars[$tpl_var] = new Smarty_variable($value, $nocache, $scope);
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}
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}
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}
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/**
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* assigns a global Smarty variable
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*
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* @param string $varname the global variable name
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* @param mixed $value the value to assign
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* @param boolean $nocache if true any output of this variable will be not cached
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*/
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public function assign_global($varname, $value = null, $nocache = false)
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{
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if ($varname != '') {
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$this->check_tplvar($varname);
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$this->smarty->global_tpl_vars[$varname] = new Smarty_variable($value, $nocache);
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}
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}
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/**
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* assigns values to template variables by reference
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*
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* @param string $tpl_var the template variable name
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* @param mixed $ &$value the referenced value to assign
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* @param boolean $nocache if true any output of this variable will be not cached
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* @param boolean $scope the scope the variable will have (local,parent or root)
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*/
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public function assign_by_ref($tpl_var, &$value, $nocache = false, $scope = SMARTY_LOCAL_SCOPE)
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{
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if ($tpl_var != '') {
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$this->check_tplvar($tpl_var);
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$this->tpl_vars[$tpl_var] = new Smarty_variable(null, $nocache, $scope);
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$this->tpl_vars[$tpl_var]->value = &$value;
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}
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}
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/**
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* appends values to template variables
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*
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* @param array $ |string $tpl_var the template variable name(s)
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* @param mixed $value the value to append
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* @param boolean $merge flag if array elements shall be merged
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* @param boolean $nocache if true any output of this variable will be not cached
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* @param boolean $scope the scope the variable will have (local,parent or root)
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*/
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public function append($tpl_var, $value = null, $merge = false, $nocache = false, $scope = SMARTY_LOCAL_SCOPE)
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{
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if (is_array($tpl_var)) {
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// $tpl_var is an array, ignore $value
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foreach ($tpl_var as $_key => $_val) {
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if ($_key != '') {
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if (!isset($this->tpl_vars[$_key])) {
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$this->check_tplvar($_key);
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$tpl_var_inst = $this->getVariable($_key, null, true, false);
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if ($tpl_var_inst instanceof Undefined_Smarty_Variable) {
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$this->tpl_vars[$_key] = new Smarty_variable(null, $nocache, $scope);
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} else {
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$this->tpl_vars[$_key] = clone $tpl_var_inst;
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if ($scope != SMARTY_LOCAL_SCOPE) {
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$this->tpl_vars[$_key]->scope = $scope;
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}
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}
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}
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if (!(is_array($this->tpl_vars[$_key]->value) || $this->tpl_vars[$_key]->value instanceof ArrayAccess)) {
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settype($this->tpl_vars[$_key]->value, 'array');
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}
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if ($merge && is_array($_val)) {
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foreach($_val as $_mkey => $_mval) {
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$this->tpl_vars[$_key]->value[$_mkey] = $_mval;
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}
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} else {
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$this->tpl_vars[$_key]->value[] = $_val;
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}
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}
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}
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} else {
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if ($tpl_var != '' && isset($value)) {
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if (!isset($this->tpl_vars[$tpl_var])) {
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$this->check_tplvar($tpl_var);
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$tpl_var_inst = $this->getVariable($tpl_var, null, true, false);
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if ($tpl_var_inst instanceof Undefined_Smarty_Variable) {
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$this->tpl_vars[$tpl_var] = new Smarty_variable(null, $nocache, $scope);
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} else {
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$this->tpl_vars[$tpl_var] = clone $tpl_var_inst;
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if ($scope != SMARTY_LOCAL_SCOPE) {
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$this->tpl_vars[$tpl_var]->scope = $scope;
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}
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}
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}
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if (!(is_array($this->tpl_vars[$tpl_var]->value) || $this->tpl_vars[$tpl_var]->value instanceof ArrayAccess)) {
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settype($this->tpl_vars[$tpl_var]->value, 'array');
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}
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if ($merge && is_array($value)) {
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foreach($value as $_mkey => $_mval) {
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$this->tpl_vars[$tpl_var]->value[$_mkey] = $_mval;
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}
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} else {
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$this->tpl_vars[$tpl_var]->value[] = $value;
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}
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}
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}
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}
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/**
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* appends values to template variables by reference
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*
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* @param string $tpl_var the template variable name
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* @param mixed $ &$value the referenced value to append
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* @param boolean $merge flag if array elements shall be merged
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*/
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public function append_by_ref($tpl_var, &$value, $merge = false)
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{
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if ($tpl_var != '' && isset($value)) {
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if (!isset($this->tpl_vars[$tpl_var])) {
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$this->tpl_vars[$tpl_var] = new Smarty_variable();
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}
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if (!@is_array($this->tpl_vars[$tpl_var]->value)) {
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settype($this->tpl_vars[$tpl_var]->value, 'array');
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}
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if ($merge && is_array($value)) {
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foreach($value as $_key => $_val) {
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$this->tpl_vars[$tpl_var]->value[$_key] = &$value[$_key];
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}
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} else {
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$this->tpl_vars[$tpl_var]->value[] = &$value;
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}
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}
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}
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/**
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* check if template variable name is reserved.
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*
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* @param string $tpl_var the template variable
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*/
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private function check_tplvar($tpl_var)
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{
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if (in_array($tpl_var, array('this', 'smarty'))) {
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throw new Exception("Cannot assign value to reserved var '{$tpl_var}'");
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}
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}
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/**
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* clear the given assigned template variable.
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*
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* @param string $ |array $tpl_var the template variable(s) to clear
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*/
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public function clear_assign($tpl_var)
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{
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if (is_array($tpl_var)) {
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foreach ($tpl_var as $curr_var) {
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unset($this->tpl_vars[$curr_var]);
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}
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} else {
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unset($this->tpl_vars[$tpl_var]);
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}
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}
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/**
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* clear all the assigned template variables.
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*/
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public function clear_all_assign()
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{
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$this->tpl_vars = array();
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}
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/**
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* gets the object of a Smarty variable
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*
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* @param string $variable the name of the Smarty variable
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* @param object $_ptr optional pointer to data object
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* @param boolean $search_parents search also in parent data
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* @return object the object of the variable
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*/
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public function getVariable($variable, $_ptr = null, $search_parents = true, $error_enable = true)
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{
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if ($_ptr === null) {
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$_ptr = $this;
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} while ($_ptr !== null) {
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if (isset($_ptr->tpl_vars[$variable])) {
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// found it, return it
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return $_ptr->tpl_vars[$variable];
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}
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// not found, try at parent
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if ($search_parents) {
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$_ptr = $_ptr->parent;
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} else {
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$_ptr = null;
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}
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}
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if (isset($this->smarty->global_tpl_vars[$variable])) {
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// found it, return it
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return $this->smarty->global_tpl_vars[$variable];
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}
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if (Smarty::$error_unassigned && $error_enable) {
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throw new Exception('Undefined Smarty variable "' . $variable . '"');
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} else {
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return new Undefined_Smarty_Variable;
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}
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}
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/**
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* gets a config variable
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*
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* @param string $variable the name of the config variable
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* @return mixed the value of the config variable
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*/
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public function getConfigVariable($variable)
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{
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$_ptr = $this;
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while ($_ptr !== null) {
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if (isset($_ptr->config_vars[$variable])) {
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// found it, return it
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return $_ptr->config_vars[$variable];
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}
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// not found, try at parent
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$_ptr = $_ptr->parent;
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}
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if (Smarty::$error_unassigned) {
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throw new Exception('Undefined config variable "' . $variable . '"');
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} else {
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return '';
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}
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}
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/**
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* gets a stream variable
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*
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* @param string $variable the stream of the variable
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* @return mixed the value of the stream variable
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*/
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public function getStreamVariable($variable)
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{
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$_result = '';
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if ($fp = fopen($variable, 'r+')) {
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while (!feof($fp)) {
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$_result .= fgets($fp);
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}
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fclose($fp);
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return $_result;
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}
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if (Smarty::$error_unassigned) {
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throw new Exception('Undefined stream variable "' . $variable . '"');
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} else {
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return '';
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}
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}
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/**
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* creates a template object
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*
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* @param string $template the resource handle of the template file
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* @param object $parent next higher level of Smarty variables
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* @param mixed $cache_id cache id to be used with this template
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* @param mixed $compile_id compile id to be used with this template
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* @returns object template object
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*/
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public function createTemplate($template, $cache_id = null, $compile_id = null, $parent = null)
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{
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if (is_object($cache_id) || is_array($cache_id)) {
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$parent = $cache_id;
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$cache_id = null;
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}
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if (is_array($parent)) {
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$data = $parent;
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$parent = null;
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} else {
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$data = null;
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}
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if (!is_object($template)) {
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// we got a template resource
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$_templateId = $this->buildTemplateId ($template, $cache_id, $compile_id);
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// already in template cache?
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if (isset($this->smarty->template_objects[$_templateId]) && $this->smarty->caching) {
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// return cached template object
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$tpl = $this->smarty->template_objects[$_templateId];
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} else {
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// create new template object
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$tpl = new $this->template_class($template, $this->smarty, $parent, $cache_id, $compile_id);
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}
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} else {
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// just return a copy of template class
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$tpl = $template;
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}
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// fill data if present
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if (is_array($data)) {
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// set up variable values
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foreach ($data as $_key => $_val) {
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$tpl->tpl_vars[$_key] = new Smarty_variable($_val);
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}
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}
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return $tpl;
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}
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/**
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* generates a template id
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*
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* @param string $_resource the resource handle of the template file
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* @param mixed $_cache_id cache id to be used with this template
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* @param mixed $_compile_id compile id to be used with this template
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* @returns string a unique template id
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*/
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function buildTemplateId ($_resource, $_cache_id, $_compile_id)
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{
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// return md5($_resource . md5($_cache_id) . md5($_compile_id));
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return crc32($_resource . $_cache_id . $_compile_id);
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}
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/**
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* return current time
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*
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* @returns double current time
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*/
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function _get_time()
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{
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$_mtime = microtime();
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$_mtime = explode(" ", $_mtime);
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return (double)($_mtime[1]) + (double)($_mtime[0]);
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}
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}
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/**
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* class for the Smarty data object
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*
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* The Smarty data object will hold Smarty variables in the current scope
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*
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* @param object $parent tpl_vars next higher level of Smarty variables
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*/
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class Smarty_Data extends Smarty_Internal_TemplateBase {
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// array of variable objects
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public $tpl_vars = array();
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// back pointer to parent object
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public $parent = null;
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// config vars
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public $config_vars = array();
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/**
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* create Smarty data object
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*/
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public function __construct ($_parent = null)
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{
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if (is_object($_parent)) {
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// when object set up back pointer
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$this->parent = $_parent;
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} elseif (is_array($_parent)) {
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// set up variable values
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foreach ($_parent as $_key => $_val) {
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$this->tpl_vars[$_key] = new Smarty_variable($_val);
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}
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} else {
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throw new Exception("Wrong type for template variables");
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}
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}
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}
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/**
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* class for the Smarty variable object
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*
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* This class defines the Smarty variable object
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*/
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class Smarty_Variable {
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// template variable
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public $value;
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public $nocache;
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public $scope;
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/**
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* create Smarty variable object
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*
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* @param mixed $value the value to assign
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* @param boolean $nocache if true any output of this variable will be not cached
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* @param boolean $scope the scope the variable will have (local,parent or root)
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*/
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public function __construct ($value = null, $nocache = false, $scope = SMARTY_LOCAL_SCOPE)
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{
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$this->value = $value;
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$this->nocache = $nocache;
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$this->scope = $scope;
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}
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}
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/**
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* class for undefined variable object
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*
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* This class defines an object for undefined variable handling
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*/
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class Undefined_Smarty_Variable {
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// return always false
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public function __get ($name)
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{
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if ($name == 'nocache') {
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return false;
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} else {
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return null;
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}
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}
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}
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?>
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