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1: <?php
2: /**
3: * Smarty Internal Plugin Resource Extends
4: *
5: * @package Smarty
6: * @subpackage TemplateResources
7: * @author Uwe Tews
8: * @author Rodney Rehm
9: */
10:
11: /**
12: * Smarty Internal Plugin Resource Extends
13: * Implements the file system as resource for Smarty which {extend}s a chain of template files templates
14: *
15: * @package Smarty
16: * @subpackage TemplateResources
17: */
18: class Smarty_Internal_Resource_Extends extends Smarty_Resource
19: {
20: /**
21: * mbstring.overload flag
22: *
23: * @var int
24: */
25: public $mbstring_overload = 0;
26:
27: /**
28: * populate Source Object with meta data from Resource
29: *
30: * @param Smarty_Template_Source $source source object
31: * @param Smarty_Internal_Template $_template template object
32: *
33: * @throws SmartyException
34: */
35: public function populate(Smarty_Template_Source $source, Smarty_Internal_Template $_template = null)
36: {
37: $uid = '';
38: $sources = array();
39: $components = explode('|', $source->name);
40: $smarty = &$source->smarty;
41: $exists = true;
42: foreach ($components as $component) {
43: /* @var \Smarty_Template_Source $_s */
44: $_s = Smarty_Template_Source::load(null, $smarty, $component);
45: if ($_s->type === 'php') {
46: throw new SmartyException("Resource type {$_s->type} cannot be used with the extends resource type");
47: }
48: $sources[ $_s->uid ] = $_s;
49: $uid .= $_s->filepath;
50: if ($_template) {
51: $exists = $exists && $_s->exists;
52: }
53: }
54: $source->components = $sources;
55: $source->filepath = $_s->filepath;
56: $source->uid = sha1($uid . $source->smarty->_joined_template_dir);
57: $source->exists = $exists;
58: if ($_template) {
59: $source->timestamp = $_s->timestamp;
60: }
61: }
62:
63: /**
64: * populate Source Object with timestamp and exists from Resource
65: *
66: * @param Smarty_Template_Source $source source object
67: */
68: public function populateTimestamp(Smarty_Template_Source $source)
69: {
70: $source->exists = true;
71: /* @var \Smarty_Template_Source $_s */
72: foreach ($source->components as $_s) {
73: $source->exists = $source->exists && $_s->exists;
74: }
75: $source->timestamp = $source->exists ? $_s->getTimeStamp() : false;
76: }
77:
78: /**
79: * Load template's source from files into current template object
80: *
81: * @param Smarty_Template_Source $source source object
82: *
83: * @return string template source
84: * @throws SmartyException if source cannot be loaded
85: */
86: public function getContent(Smarty_Template_Source $source)
87: {
88: if (!$source->exists) {
89: throw new SmartyException("Unable to load template '{$source->type}:{$source->name}'");
90: }
91: $_components = array_reverse($source->components);
92: $_content = '';
93: /* @var \Smarty_Template_Source $_s */
94: foreach ($_components as $_s) {
95: // read content
96: $_content .= $_s->getContent();
97: }
98: return $_content;
99: }
100:
101: /**
102: * Determine basename for compiled filename
103: *
104: * @param Smarty_Template_Source $source source object
105: *
106: * @return string resource's basename
107: */
108: public function getBasename(Smarty_Template_Source $source)
109: {
110: return str_replace(':', '.', basename($source->filepath));
111: }
112:
113: /*
114: * Disable timestamp checks for extends resource.
115: * The individual source components will be checked.
116: *
117: * @return bool
118: */
119: /**
120: * @return bool
121: */
122: public function checkTimestamps()
123: {
124: return false;
125: }
126: }
127:
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