CalendarContext - Code Metrics - Inspection of "Sync" - smtech/canvas-ics-sync - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — develop ( 0fe9d6...4e1ddc )

by Seth

created 2016-09-03 02:57 UTC

CalendarContext A

↳ Parent: Project

Complexity

Total Complexity

Size/Duplication

Total Lines	105
Duplicated Lines	0 %

Coupling/Cohesion

Components	0
Dependencies	0

Importance

Changes	2
Bugs	0	Features	0

Metric	Value
wmc	11
c	2
b	0
f	0
lcom	0
cbo	0
dl	0
loc	105
rs	10

5 Methods

Rating	Name	Size	Complexity
C	__construct()	48	7
A	getCanonicalUrl()	4	1
A	getContext()	4	1
A	getId()	4	1
A	getVerificationUrl()	4	1

<?php

namespace smtech\CanvasICSSync\SyncIntoCanvas;

class CalendarContext
{
    /**
     * The canonical URL for this context in Canvas
     * @var string
     */
    protected $canonicalUrl;

    /**
     * The context for this calendar in Canvas (user, group, course)
     * @var CanvasContext
     */
    protected $context;

    /**
     * Unique ID for this Canvas context
     * @var int
     */
    protected $id;

    /**
     * URL to verify this context against API
     * @var string
     */
    protected $verificationUrl;

    /**
     * Compute the calendar context for the canvas object based on its URL
     *
     * @param string $canvasUrl URL to the context for a calendar on this
     *     Canvas instance
     * @throws Exception If `$canvasInstance` is not a URL on this Canvas
     *     instance
     * @throws Exception if `$canvasInstance` is not a URL to a recognizable
     *     calendar context
     */
    public function __construct($canvasUrl)
// Bad
class Router
{
    public function generate($path)
    {
        return $_SERVER['HOST'].$path;
    }
}

// Better
class Router
{
    private $host;

    public function __construct($host)
    {
        $this->host = $host;
    }

    public function generate($path)
    {
        return $this->host.$path;
    }
}

class Controller
{
    public function myAction(Request $request)
    {
        // Instead of
        $page = isset($_GET['page']) ? intval($_GET['page']) : 1;

        // Better (assuming you use the Symfony2 request)
        $page = $request->query->get('page', 1);
    }
}
    {
        /*
         * TODO: accept calendar2?contexts links too (they would be an intuitively obvious link to use, after all)
         */
        /*
         * FIXME: users aren't working
         */
        /*
         * TODO: it would probably be better to look up users by email address than URL
         */
        /* get the context (user, course or group) for the canvas URL */
        if (preg_match('%(https?://)?(' .
            /*
             * FIXME not clear that we should be using $_SESSION
             */
            parse_url($_SESSION[CANVAS_INSTANCE_URL], PHP_URL_HOST) . '/((about/(\d+))|(courses/(\d+)(/groups/(\d+))?)|(accounts/\d+/groups/(\d+))))%', $canvasUrl, $match)) {
            $this->canonicalUrl = "https://{$match[2]}"; // https://stmarksschool.instructure.com/courses/953

            // course or account groups
            if (isset($match[9]) || isset($match[11])) {
                $this->context = CanvasContext::GROUP(); // used for context_code in events
                $this->id = ($match[9] > $match[11] ? $match[9] : $match[11]);
class Id
{
    public $id;

    public function __construct($id)
    {
        $this->id = $id;
    }

}

class Account
{
    /** @var  Id $id */
    public $id;
}

$account_id = false;

if (starsAreRight()) {
    $account_id = new Id(42);
}

$account = new Account();
if ($account instanceof Id)
{
    $account->id = $account_id;
}
                $this->verificationUrl = "groups/{$this->id}"; // used once to look up the object to be sure it really exists

            // courses
            } elseif (isset($match[7])) {
                $this->context = CanvasContext::COURSE();
                $this->id = $match[7];
$answer = 42;

$correct = false;

$correct = (bool) $answer;
                $this->verificationUrl = "courses/{$this->id}";

            // users
            } elseif (isset($match[5])) {
                $this->context = CanvasContext::USER();
                $this->id = $match[5];
$answer = 42;

$correct = false;

$correct = (bool) $answer;
                $this->verificationUrl = "users/{$this->id}/profile";

            // we're somewhere where we don't know where we are
            } else {
                throw new Exception(
                    "'$canvasUrl' is not a recognizable calendar context"
                );
            }
        }
        throw new Exception(
            "'$canvasUrl' is not recognized as a URL to a calendar context on this Canvas instance"
        );
    }

    public function getCanonicalUrl()
    {
        return $this->canonicalUrl;
    }

    public function getContext()
    {
        return $this->context;
    }

    public function getId()
    {
        return $this->id;
    }

    public function getVerificationUrl()
    {
        return $this->verificationUrl;
    }
}


1			<?php
2
3			namespace smtech\CanvasICSSync\SyncIntoCanvas;
4
5			class CalendarContext
6			{
7			/**
8			* The canonical URL for this context in Canvas
9			* @var string
10			*/
11			protected $canonicalUrl;
12
13			/**
14			* The context for this calendar in Canvas (user, group, course)
15			* @var CanvasContext
16			*/
17			protected $context;
18
19			/**
20			* Unique ID for this Canvas context
21			* @var int
22			*/
23			protected $id;
24
25			/**
26			* URL to verify this context against API
27			* @var string
28			*/
29			protected $verificationUrl;
30
31			/**
32			* Compute the calendar context for the canvas object based on its URL
33			*
34			* @param string $canvasUrl URL to the context for a calendar on this
35			* Canvas instance
36			* @throws Exception If `$canvasInstance` is not a URL on this Canvas
37			* instance
38			* @throws Exception if `$canvasInstance` is not a URL to a recognizable
39			* calendar context
40			*/
41			public function __construct($canvasUrl)
			0 ignored issues – show Coding Style introduced 2016-08-29 11:25 UTC by Report Bug Copy Issue Report `__construct` uses the super-global variable `$_SESSION` which is generally not recommended. Instead of super-globals, we recommend to explicitly inject the dependencies of your class. This makes your code less dependent on global state and it becomes generally more testable: // Bad class Router { public function generate($path) { return $_SERVER['HOST'].$path; } } // Better class Router { private $host; public function __construct($host) { $this->host = $host; } public function generate($path) { return $this->host.$path; } } class Controller { public function myAction(Request $request) { // Instead of $page = isset($_GET['page']) ? intval($_GET['page']) : 1; // Better (assuming you use the Symfony2 request) $page = $request->query->get('page', 1); } } Loading history...
42			{
43			/*
44			* TODO: accept calendar2?contexts links too (they would be an intuitively obvious link to use, after all)
45			*/
46			/*
47			* FIXME: users aren't working
48			*/
49			/*
50			* TODO: it would probably be better to look up users by email address than URL
51			*/
52			/* get the context (user, course or group) for the canvas URL */
53			if (preg_match('%(https?://)?(' .
54			/*
55			* FIXME not clear that we should be using $_SESSION
56			*/
57			parse_url($_SESSION[CANVAS_INSTANCE_URL], PHP_URL_HOST) . '/((about/(\d+))\|(courses/(\d+)(/groups/(\d+))?)\|(accounts/\d+/groups/(\d+))))%', $canvasUrl, $match)) {
58			$this->canonicalUrl = "https://{$match[2]}"; // https://stmarksschool.instructure.com/courses/953
59
60			// course or account groups
61			if (isset($match[9]) \|\| isset($match[11])) {
62			$this->context = CanvasContext::GROUP(); // used for context_code in events
63			$this->id = ($match[9] > $match[11] ? $match[9] : $match[11]);
			0 ignored issues – show Documentation Bug introduced 2016-08-29 11:25 UTC by Report Bug Copy Issue Report It seems like `$match[9] > $match[11] ? $match[9] : $match[11]` can also be of type `string`. However, the property `$id` is declared as type `integer`. Maybe add an additional type check? Our type inference engine has found a suspicous assignment of a value to a property. This check raises an issue when a value that can be of a mixed type is assigned to a property that is type hinted more strictly. For example, imagine you have a variable `$accountId` that can either hold an Id object or false (if there is no account id yet). Your code now assigns that value to the `id` property of an instance of the `Account` class. This class holds a proper account, so the id value must no longer be false. Either this assignment is in error or a type check should be added for that assignment. class Id { public $id; public function __construct($id) { $this->id = $id; } } class Account { /** @var Id $id */ public $id; } $account_id = false; if (starsAreRight()) { $account_id = new Id(42); } $account = new Account(); if ($account instanceof Id) { $account->id = $account_id; } Loading history...
64			$this->verificationUrl = "groups/{$this->id}"; // used once to look up the object to be sure it really exists
65
66			// courses
67			} elseif (isset($match[7])) {
68			$this->context = CanvasContext::COURSE();
69			$this->id = $match[7];
			0 ignored issues – show Documentation Bug introduced 2016-08-29 11:25 UTC by Report Bug Copy Issue Report The property `$id` was declared of type `integer`, but `$match[7]` is of type `string`. Maybe add a type cast? This check looks for assignments to scalar types that may be of the wrong type. To ensure the code behaves as expected, it may be a good idea to add an explicit type cast. $answer = 42; $correct = false; $correct = (bool) $answer; Loading history...
70			$this->verificationUrl = "courses/{$this->id}";
71
72			// users
73			} elseif (isset($match[5])) {
74			$this->context = CanvasContext::USER();
75			$this->id = $match[5];
			0 ignored issues – show Documentation Bug introduced 2016-08-29 11:25 UTC by Report Bug Copy Issue Report The property `$id` was declared of type `integer`, but `$match[5]` is of type `string`. Maybe add a type cast? This check looks for assignments to scalar types that may be of the wrong type. To ensure the code behaves as expected, it may be a good idea to add an explicit type cast. $answer = 42; $correct = false; $correct = (bool) $answer; Loading history...
76			$this->verificationUrl = "users/{$this->id}/profile";
77
78			// we're somewhere where we don't know where we are
79			} else {
80			throw new Exception(
81			"'$canvasUrl' is not a recognizable calendar context"
82			);
83			}
84			}
85			throw new Exception(
86			"'$canvasUrl' is not recognized as a URL to a calendar context on this Canvas instance"
87			);
88			}
89
90			public function getCanonicalUrl()
91			{
92			return $this->canonicalUrl;
93			}
94
95			public function getContext()
96			{
97			return $this->context;
98			}
99
100			public function getId()
101			{
102			return $this->id;
103			}
104
105			public function getVerificationUrl()
106			{
107			return $this->verificationUrl;
108			}
109			}
110

smtech / canvas-ics-sync

Push — develop ( 0fe9d6...4e1ddc )

CalendarContext A

Complexity

Size/Duplication

Coupling/Cohesion

Importance

5 Methods

Duplication Side-by-Side

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