1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
|
<?php
/**
* Slim - a micro PHP 5 framework
*
* @author Josh Lockhart <info@joshlockhart.com>
* @copyright 2011 Josh Lockhart
* @link http://www.slimframework.com
* @license http://www.slimframework.com/license
* @version 1.5.0
*
* MIT LICENSE
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/**
* Slim View
*
* The View is responsible for rendering and/or displaying a template.
* It is recommended that you subclass View and re-implement the
* `View::render` method to use a custom templating engine such as
* Smarty, Twig, Mustache, etc. It is important that `View::render`
* `return` the final template output. Do not `echo` the output.
*
* @package Slim
* @author Josh Lockhart <info@joshlockhart.com>
* @since Version 1.0
*/
class Slim_View {
/**
* @var array Key-value array of data available to the template
*/
protected $data = array();
/**
* @var string Absolute or relative path to the templates directory
*/
protected $templatesDirectory;
/**
* Constructor
*
* This is empty but may be overridden in a subclass
*/
public function __construct() {}
/**
* Get data
* @param string $key
* @return array|mixed|null All View data if no $key, value of datum
* if $key, or NULL if $key but datum
* does not exist.
*/
public function getData( $key = null ) {
if ( !is_null($key) ) {
return isset($this->data[$key]) ? $this->data[$key] : null;
} else {
return $this->data;
}
}
/**
* Set data
*
* This method is overloaded to accept two different method signatures.
* You may use this to set a specific key with a specfic value,
* or you may use this to set all data to a specific array.
*
* USAGE:
*
* View::setData('color', 'red');
* View::setData(array('color' => 'red', 'number' => 1));
*
* @param string|array
* @param mixed Optional. Only use if first argument is a string.
* @return void
* @throws InvalidArgumentException If incorrect method signature
*/
public function setData() {
$args = func_get_args();
if ( count($args) === 1 && is_array($args[0]) ) {
$this->data = $args[0];
} else if ( count($args) === 2 ) {
$this->data[(string)$args[0]] = $args[1];
} else {
throw new InvalidArgumentException('Cannot set View data with provided arguments. Usage: `View::setData( $key, $value );` or `View::setData([ key => value, ... ]);`');
}
}
/**
* Append data to existing View data
* @param array $data
* @return void
*/
public function appendData( array $data ) {
$this->data = array_merge($this->data, $data);
}
/**
* Get templates directory
* @return string|null Path to templates directory without trailing slash
*/
public function getTemplatesDirectory() {
return $this->templatesDirectory;
}
/**
* Set templates directory
* @param string $dir
* @return void
* @throws RuntimeException If directory is not a directory or does not exist
*/
public function setTemplatesDirectory( $dir ) {
if ( !is_dir($dir) ) {
throw new RuntimeException('Cannot set View templates directory to: ' . $dir . '. Directory does not exist.');
}
$this->templatesDirectory = rtrim($dir, '/');
}
/**
* Display template
*
* This method echoes the rendered template to the current output buffer
*
* @param string $template Path to template file relative to templates directoy
* @return void
*/
public function display( $template ) {
echo $this->render($template);
}
/**
* Render template
* @param string $template Path to template file relative to templates directory
* @return string Rendered template
* @throws RuntimeException If template does not exist
*/
public function render( $template ) {
extract($this->data);
$templatePath = $this->getTemplatesDirectory() . '/' . ltrim($template, '/');
if ( !file_exists($templatePath) ) {
throw new RuntimeException('View cannot render template `' . $templatePath . '`. Template does not exist.');
}
ob_start();
require $templatePath;
return ob_get_clean();
}
}
|
