Completed
Pull Request — master (#83)
by
unknown
11:18
created

App::initialize()   A

Complexity

Conditions 1
Paths 1

Size

Total Lines 5
Code Lines 3

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 0
CRAP Score 2

Importance

Changes 0
Metric Value
c 0
b 0
f 0
dl 0
loc 5
ccs 0
cts 3
cp 0
rs 9.4285
cc 1
eloc 3
nc 1
nop 0
crap 2
1
<?php
2
3
namespace Zewa;
4
5
//use Zewa\Interfaces\ContainerInterface;
6
7
/**
8
 * This class is the starting point for application
9
 *
10
 * @author Zechariah Walden<zech @ zewadesign.com>
11
 */
12
class App
13
{
14
    /**
15
     * Events
16
     */
17
    private static $events;
18
19
    /**
20
     * Return value from application
21
     *
22
     * @var string
23
     */
24
    private $output = false;
25
26
    /**
27
     * Namespaced controller path
28
     *
29
     * @var string
30
     */
31
    private $class;
32
33
    /**
34
     * Instantiated class object
35
     *
36
     * @var Controller
37
     */
38
    private $instantiatedClass;
39
40
    /**
41
     * Module being accessed
42
     *
43
     * @var string
44
     */
45
    private $module;
46
47
    /**
48
     * Controller being accessed
49
     *
50
     * @var string
51
     */
52
    private $controller;
53
54
    /**
55
     * Method being accessed
56
     *
57
     * @var string
58
     */
59
    private $method;
60
61
    /**
62
     * Params being passed
63
     *
64
     * @var array
65
     */
66
    private $params;
67
68
    /**
69
     * @var DIContainer $container
70
     */
71
    private $container;
72
73
    /**
74
     * Application bootstrap process
75
     *
76
     * The application registers the configuration in the app/config/core.php
77
     * and then processes, and makes available the configured resources
78
     *
79
     * App constructor.
80
//     * @param Config $config
0 ignored issues
show
Bug introduced by
There is no parameter named $config. Was it maybe removed?

This check looks for PHPDoc comments describing methods or function parameters that do not exist on the corresponding method or function.

Consider the following example. The parameter $italy is not defined by the method finale(...).

/**
 * @param array $germany
 * @param array $island
 * @param array $italy
 */
function finale($germany, $island) {
    return "2:1";
}

The most likely cause is that the parameter was removed, but the annotation was not.

Loading history...
81
     * @param DIContainer $container
82
     */
83 28
    public function __construct(DIContainer $container)
84
    {
85 28
        $this->configuration = $container->resolve('\Zewa\Config');
0 ignored issues
show
Bug introduced by
The property configuration does not exist. Did you maybe forget to declare it?

In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:

class MyClass { }

$x = new MyClass();
$x->foo = true;

Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion:

class MyClass {
    public $foo;
}

$x = new MyClass();
$x->foo = true;
Loading history...
86 28
        $this->container = $container;
87
88 28
        $this->router = $container->resolve('\Zewa\Router', true);
0 ignored issues
show
Bug introduced by
The property router does not exist. Did you maybe forget to declare it?

In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:

class MyClass { }

$x = new MyClass();
$x->foo = true;

Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion:

class MyClass {
    public $foo;
}

$x = new MyClass();
$x->foo = true;
Loading history...
89 18
        $this->request = $container->resolve('\Zewa\Request', true);
0 ignored issues
show
Bug introduced by
The property request does not exist. Did you maybe forget to declare it?

In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:

class MyClass { }

$x = new MyClass();
$x->foo = true;

Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion:

class MyClass {
    public $foo;
}

$x = new MyClass();
$x->foo = true;
Loading history...
90 18
        $this->view = $container->resolve('\Zewa\View');
0 ignored issues
show
Bug introduced by
The property view does not exist. Did you maybe forget to declare it?

In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:

class MyClass { }

$x = new MyClass();
$x->foo = true;

Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion:

class MyClass {
    public $foo;
}

$x = new MyClass();
$x->foo = true;
Loading history...
91
92 18
        $this->prepare();
93 18
    }
94
95
    /**
96
     * Calls the proper shell for app execution
97
     *
98
     * @access private
99
     */
100
    public function initialize()
101
    {
102
        $this->start();
103
        return $this;
104
    }
105
106
    /**
107
     * App preparation cycle
108
     */
109 18
    private function prepare()
110
    {
111 18
        $routerConfig = $this->configuration->get('Routing');
112
113 18
        $this->module = ucfirst($routerConfig->module);
114 18
        $this->controller = ucfirst($routerConfig->controller);
115 18
        $this->method = $routerConfig->method;
116 18
        $this->params = $routerConfig->params;
117 18
        $this->class = 'Zewa\\App\\Modules\\' . $this->module . '\\Controllers\\' . ucfirst($this->controller);
118 18
    }
119
120
//    public function setContainer(Container $container)
0 ignored issues
show
Unused Code Comprehensibility introduced by
41% of this comment could be valid code. Did you maybe forget this after debugging?

Sometimes obsolete code just ends up commented out instead of removed. In this case it is better to remove the code once you have checked you do not need it.

The code might also have been commented out for debugging purposes. In this case it is vital that someone uncomments it again or your project may behave in very unexpected ways in production.

This check looks for comments that seem to be mostly valid code and reports them.

Loading history...
121
//    {
122
//        $this->container = $container;
123
//    }
124
125
    /**
126
     * Verifies the provided application request is a valid request
127
     *
128
     * @access private
129
     */
130
    private function validateRequest()
131
    {
132
        //catch exception and handle
133
        try {
134
            $class = new \ReflectionClass($this->class);
135
            $class->getMethod($this->method);
136
        } catch (\ReflectionException $e) {
137
            $view = $this->container->resolve('\Zewa\View');
138
            $this->output = $view->render404(['Invalid method requests']); //Router::show404(
139
            return false;
140
        }
141
142
        return true;
143
    }
144
145
    /**
146
     * Processes the application request
147
     *
148
     * @access private
149
     */
150
    private function start()
151
    {
152
        if ($this->validateRequest() === false) {
153
            return false;
154
        }
155
156
        App::callEvent('preController');
157
        $this->instantiatedClass = $this->container->resolve($this->class);
158
        App::callEvent('postController');
159
160
        $this->instantiatedClass->setConfig($this->configuration);
161
        $this->instantiatedClass->setRouter($this->router);
162
        $this->instantiatedClass->setRequest($this->request);
163
        $this->instantiatedClass->setContainer($this->container);
164
        $this->instantiatedClass->setView($this->view);
165
166
        $this->output = call_user_func_array(
167
            [&$this->instantiatedClass, $this->method],
168
            $this->params
169
        );
170
    }
171
172
    /**
173
     * Attach (or remove) multiple callbacks to an event and trigger those callbacks when that event is called.
174
     *
175
     * @param string $event    name
176
     * @param mixed  $value    the optional value to pass to each callback
177
     * @param mixed  $callback the method or function to call - FALSE to remove all callbacks for event
0 ignored issues
show
Bug introduced by
There is no parameter named $value. Was it maybe removed?

This check looks for PHPDoc comments describing methods or function parameters that do not exist on the corresponding method or function.

Consider the following example. The parameter $italy is not defined by the method finale(...).

/**
 * @param array $germany
 * @param array $island
 * @param array $italy
 */
function finale($germany, $island) {
    return "2:1";
}

The most likely cause is that the parameter was removed, but the annotation was not.

Loading history...
178
     */
179
180
    public static function addEvent($event, $callback = false)
181
    {
182
        // Adding or removing a callback?
183
        if ($callback !== false) {
184
            self::$events[$event][] = $callback;
185
        } else {
186
            unset(self::$events[$event]);
187
        }
188
    }
189
190
    public function callEvent($event, $method = false, $arguments = [])
191
    {
192
        if (isset(self::$events[$event])) {
193
            foreach (self::$events[$event] as $e) {
194
                if ($method !== false) { // class w/ method specified
195
                    $object = new $e();
196
                    $value = call_user_func_array(
197
                        [&$object, $method],
198
                        $arguments
199
                    );
200
                } else {
201
                    if (class_exists($e)) {
202
                        $value = new $e($arguments); // class w/o method specified
203
                    } else {
204
                        $value = call_user_func($e, $arguments); // function yuk
205
                    }
206
                }
207
            }
208
209
            return $value;
0 ignored issues
show
Bug introduced by
The variable $value does not seem to be defined for all execution paths leading up to this point.

If you define a variable conditionally, it can happen that it is not defined for all execution paths.

Let’s take a look at an example:

function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}

In the above example, the variable $x is defined if you pass “foo” or “bar” as argument for $a. However, since the switch statement has no default case statement, if you pass any other value, the variable $x would be undefined.

Available Fixes

  1. Check for existence of the variable explicitly:

    function myFunction($a) {
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
        }
    
        if (isset($x)) { // Make sure it's always set.
            echo $x;
        }
    }
    
  2. Define a default value for the variable:

    function myFunction($a) {
        $x = ''; // Set a default which gets overridden for certain paths.
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
        }
    
        echo $x;
    }
    
  3. Add a value for the missing path:

    function myFunction($a) {
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
    
            // We add support for the missing case.
            default:
                $x = '';
                break;
        }
    
        echo $x;
    }
    
Loading history...
210
        }
211
    }
212
213
214
    /**
215
     * Prepare application return value into a string
216
     *
217
     * @access public
218
     * @return string
219
     */
220
    public function __toString()
221
    {
222
        if (!$this->output) {
223
            $this->output = '';
224
        }
225
226
        App::callEvent('postApplication');
227
228
        return $this->output;
229
    }
230
}
231