function Smarty_Compiler::_compile_foreach_start in Quiz 6.5

Same name and namespace in other branches

1. 6.6 includes/moodle/lib/smarty/Smarty_Compiler.class.php \Smarty_Compiler::_compile_foreach_start()

Compile {foreach ...} tag.

Parameters

string $tag_args:

Return value

string

1 call to Smarty_Compiler::_compile_foreach_start()

Smarty_Compiler::_compile_tag in includes/moodle/lib/smarty/Smarty_Compiler.class.php

Compile a template tag

File

includes/moodle/lib/smarty/Smarty_Compiler.class.php, line 1142

Class

Smarty_Compiler

Template compiling class @package Smarty

Code

function _compile_foreach_start($tag_args) {
  $attrs = $this
    ->_parse_attrs($tag_args);
  $arg_list = array();
  if (empty($attrs['from'])) {
    return $this
      ->_syntax_error("foreach: missing 'from' attribute", E_USER_ERROR, __FILE__, __LINE__);
  }
  $from = $attrs['from'];
  if (empty($attrs['item'])) {
    return $this
      ->_syntax_error("foreach: missing 'item' attribute", E_USER_ERROR, __FILE__, __LINE__);
  }
  $item = $this
    ->_dequote($attrs['item']);
  if (!preg_match('~^\\w+$~', $item)) {
    return $this
      ->_syntax_error("'foreach: item' must be a variable name (literal string)", E_USER_ERROR, __FILE__, __LINE__);
  }
  if (isset($attrs['key'])) {
    $key = $this
      ->_dequote($attrs['key']);
    if (!preg_match('~^\\w+$~', $key)) {
      return $this
        ->_syntax_error("foreach: 'key' must to be a variable name (literal string)", E_USER_ERROR, __FILE__, __LINE__);
    }
    $key_part = "\$this->_tpl_vars['{$key}'] => ";
  }
  else {
    $key = null;
    $key_part = '';
  }
  if (isset($attrs['name'])) {
    $name = $attrs['name'];
  }
  else {
    $name = null;
  }
  $output = '<?php ';
  $output .= "\$_from = {$from}; if (!is_array(\$_from) && !is_object(\$_from)) { settype(\$_from, 'array'); }";
  if (isset($name)) {
    $foreach_props = "\$this->_foreach[{$name}]";
    $output .= "{$foreach_props} = array('total' => count(\$_from), 'iteration' => 0);\n";
    $output .= "if ({$foreach_props}['total'] > 0):\n";
    $output .= "    foreach (\$_from as {$key_part}\$this->_tpl_vars['{$item}']):\n";
    $output .= "        {$foreach_props}['iteration']++;\n";
  }
  else {
    $output .= "if (count(\$_from)):\n";
    $output .= "    foreach (\$_from as {$key_part}\$this->_tpl_vars['{$item}']):\n";
  }
  $output .= '?>';
  return $output;
}