Event::purgeUnmatched() - 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

Event::purgeUnmatched() B

↳ Parent: Event

Complexity

Conditions	5
Paths	6

Size

Total Lines	42
Code Lines	21

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
c	1
b	0
f	0
dl	0
loc	42
rs	8.439
cc	5
eloc	21
nc	6
nop	2

<?php

namespace smtech\CanvasICSSync\SyncIntoCanvas;

use vevent;
use iCalUtilityFunctions;
use Michelf\Markdown;

class Event extends Syncable

{
    /*
     * TODO:0 Can we detect the timezone for the Canvas instance and use it? issue:18
     */
    const LOCAL_TIMEZONE = 'US/Eastern';
    const CANVAS_TIMESTAMP_FORMAT = 'Y-m-d\TH:iP';

    const FIELD_MAP = [
        'calendar_event[title]' => 'SUMMARY',
        'calendar_event[description]' => 'DESCRIPTION',
        'calendar_event[start_at]' => [
            0 => 'X-CURRENT-DTSTART',
            1 => 'DTSTART'
        ],
        'calendar_event[end_at]' => [
            0 => 'X-CURRENT-DTEND',
            1 => 'DTEND'
        ],
        'calendar_event[location_name]' => 'LOCATION'
    ];

    /**
     * VEVENT
     * @var vevent
     */
    protected $vevent;

    /**
     * Calendar
     * @var Calendar
     */
    protected $calendar;

    /**
     * Unique hash identifying this version of this event
     * @var string
     */
    protected $hash;

    protected $canvasId;

    public function __construct(vevent $vevent, Calendar $calendar)
    {
        if (empty($vevent)) {
            throw new Exception(
                'Valid VEVENT required'
            );
        }
        $this->vevent = $vevent;

        if (empty($calendar)) {
            throw new Exception(
                'Valid Calendar required'
            );
        }
        $this->calendar = $calendar;

        $this->getHash();
    }

    public function getProperty($property)
    {
        return (empty($this->vevent) ? false : $this->vevent->getProperty($property));
    }

    public function getCalendar()
    {
        return $this->calendar;
    }

    /**
     * Generate a hash of this version of an event to cache in the database
     **/
    public function getHash($algorithm = 'md5')
    {
        if (empty($this->hash)) {
            $blob = '';
            foreach (static::$FIELD_MAP as $field) {
                if (is_array($field)) {
                    foreach ($field as $option) {
                        if (!empty($property = $this->getProperty($option))) {
                            $blob .= serialize($property);
                            break;
                        }
                    }
                } else {
                    if (!empty($property = $this->getProperty($field))) {
                        $blob .= serialize($property);
                    }
                }
            }
            $this->hash = hash($algorithm, $blob);
        }
        return $this->hash;
    }

    public function save()
    {
        $db = static::getDatabase();
        $api = static::getApi();

        $select = $db->prepare(
            "SELECT *
                FROM `events`
                WHERE
                    `event_hash` = :event_hash AND
                    `calendar` = :calendar"
        );
        $update = $db->prepare(
            "UPDATE `events`
                SET
                    `synced` = :synced
                WHERE
                    `event_hash` = :event_hash AND
                    `calendar` = :calendar"
        );
        $insert = $db->prepare(
            "INSERT INTO `events`
                (
                    `calendar`,
                    `calendar_event[id]`,
                    `event_hash`,
                    `synced`
                ) VALUES (
                    :calendar,
                    :calendar_event_id,
                    :event_hash,
                    :synced
                )"
        );

        $params = [
            'calendar' => $this->getCalendar()->getId(),

            'event_hash' => $this->getHash(),
            'synced' => static::getTimestamp()
        ];

        $select->execute($params);
        if ($select->fetch() !== false) {
            $update->execute($params);
        } else {
            /*
             * FIXME: how sure are we of this? issue:14
             */
            /*
             * multi-day event instance start times need to be changed to
             * _this_ date
             */
            $start = new DateTime(
                iCalUtilityFunctions::_date2strdate(
                    $this->getProperty('DTSTART')
                )
            );
            $end = new DateTime(
                iCalUtilityFunctions::_date2strdate(
                    $this->getProperty('DTEND')
                )
            );
            if ($this->getProperty('X-RECURRENCE')) {
                $start = new DateTime($this->getProperty('X-CURRENT-DTSTART')[1]);
                $end = new DateTime($this->getProperty('X-CURRENT-DTEND')[1]);
            }
            $start->setTimeZone(new DateTimeZone(self::LOCAL_TIMEZONE));
            $end->setTimeZone(new DateTimeZone(self::LOCAL_TIMEZONE));

            $calendarEvent = $api->post(
                "/calendar_events",
                [
function acceptsInteger($int) { }

$x = '123'; // string "123"

// Instead of
acceptsInteger($x);

// we recommend to use
acceptsInteger((integer) $x);
                    'calendar_event' => [
                        'context_code' => $this->getCalendar()->getContextCode(),
                        /*
                         * TODO this should be configurable issue:5
                         */
                        /* removing trailing [TAGS] from event title */
                        'title' => preg_replace(
                            '%^([^\]]+)(\s*\[[^\]]+\]\s*)+$%',
                            '\\1',
                            strip_tags($this->getProperty('SUMMARY'))
                        ),
                        'description' => Markdown::defaultTransform(
                            str_replace(
                                '\n',
                                "\n\n",
                                $this->getProperty('DESCRIPTION', 1)

                            )
                        ),
                        'start_at' => $start->format(self::CANVAS_TIMESTAMP_FORMAT),
                        'end_at' => $end->format(self::CANVAS_TIMESTAMP_FORMAT),
                        'location_name' => $this->getProperty('LOCATION')
                    ]
                ]
            );
            $params['calendar_event_id'] = $calendarEvent['id'];
            $insert->execute($params);
        }
    }

    public static function purgeUnmatched($timestamp, $calendar)
    {
        $db = static::getDatabase();
        $api = static::getApi();

        $findDeletedEvents = $db->prepare(
            "SELECT *
                FROM `events`
                WHERE
                    `calendar` = :calendar AND
                    `synced` != :synced"
        );
        $deleteCachedEvent = $db->prepare(
            "DELETE FROM `events` WHERE `id` = :id"
        );

        $findDeletedEvents->execute([
            'calendar' => $calendar->getId(),
            'synced' => $timestamp
        ]);
        if (($deletedEvents = $findDeletedEvents->fetchAll()) !== false) {
            foreach ($deletedEvents as $event) {
                $params['cancel_reason'] = $timestamp;
foreach ($collection as $item) {
    $myArray['foo'] = $item->getFoo();

    if ($item->hasBar()) {
        $myArray['bar'] = $item->getBar();
    }

    // do something with $myArray
}
                if ($calendar->getContext()->getContext() == 'user') {
                    $params['as_user_id'] = $calendar->getContext()->getId();
function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

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

    // $x is potentially undefined here.
    echo $x;
}
                }
                try {
                    $api->delete(
                        "/calendar_events/{$event['calendar_event[id]']}",
                        $params
                    );
                } catch (Pest_Unauthorized $e) {

                    /*
                     * Do nothing: an event was cached that had been deleted
                     * from Canvas -- deleting the cached event is
                     * inconsequential
                     */
                }
                $deleteCachedEvent->execute($event['id']);
            }
        }
    }
}


1			<?php
2
3			namespace smtech\CanvasICSSync\SyncIntoCanvas;
4
5			use vevent;
6			use iCalUtilityFunctions;
7			use Michelf\Markdown;
8
9			class Event extends Syncable
			0 ignored issues – show Bug introduced 2016-09-03 03:00 UTC by Report Bug Copy Issue Report There is at least one abstract method in this class. Maybe declare it as abstract, or implement the remaining methods: delete, getId Loading history...
10			{
11			/*
12			* TODO:0 Can we detect the timezone for the Canvas instance and use it? issue:18
13			*/
14			const LOCAL_TIMEZONE = 'US/Eastern';
15			const CANVAS_TIMESTAMP_FORMAT = 'Y-m-d\TH:iP';
16
17			const FIELD_MAP = [
18			'calendar_event[title]' => 'SUMMARY',
19			'calendar_event[description]' => 'DESCRIPTION',
20			'calendar_event[start_at]' => [
21			0 => 'X-CURRENT-DTSTART',
22			1 => 'DTSTART'
23			],
24			'calendar_event[end_at]' => [
25			0 => 'X-CURRENT-DTEND',
26			1 => 'DTEND'
27			],
28			'calendar_event[location_name]' => 'LOCATION'
29			];
30
31			/**
32			* VEVENT
33			* @var vevent
34			*/
35			protected $vevent;
36
37			/**
38			* Calendar
39			* @var Calendar
40			*/
41			protected $calendar;
42
43			/**
44			* Unique hash identifying this version of this event
45			* @var string
46			*/
47			protected $hash;
48
49			protected $canvasId;
50
51			public function __construct(vevent $vevent, Calendar $calendar)
52			{
53			if (empty($vevent)) {
54			throw new Exception(
55			'Valid VEVENT required'
56			);
57			}
58			$this->vevent = $vevent;
59
60			if (empty($calendar)) {
61			throw new Exception(
62			'Valid Calendar required'
63			);
64			}
65			$this->calendar = $calendar;
66
67			$this->getHash();
68			}
69
70			public function getProperty($property)
71			{
72			return (empty($this->vevent) ? false : $this->vevent->getProperty($property));
73			}
74
75			public function getCalendar()
76			{
77			return $this->calendar;
78			}
79
80			/**
81			* Generate a hash of this version of an event to cache in the database
82			**/
83			public function getHash($algorithm = 'md5')
84			{
85			if (empty($this->hash)) {
86			$blob = '';
87			foreach (static::$FIELD_MAP as $field) {
88			if (is_array($field)) {
89			foreach ($field as $option) {
90			if (!empty($property = $this->getProperty($option))) {
91			$blob .= serialize($property);
92			break;
93			}
94			}
95			} else {
96			if (!empty($property = $this->getProperty($field))) {
97			$blob .= serialize($property);
98			}
99			}
100			}
101			$this->hash = hash($algorithm, $blob);
102			}
103			return $this->hash;
104			}
105
106			public function save()
107			{
108			$db = static::getDatabase();
109			$api = static::getApi();
110
111			$select = $db->prepare(
112			"SELECT *
113			FROM `events`
114			WHERE
115			`event_hash` = :event_hash AND
116			`calendar` = :calendar"
117			);
118			$update = $db->prepare(
119			"UPDATE `events`
120			SET
121			`synced` = :synced
122			WHERE
123			`event_hash` = :event_hash AND
124			`calendar` = :calendar"
125			);
126			$insert = $db->prepare(
127			"INSERT INTO `events`
128			(
129			`calendar`,
130			`calendar_event[id]`,
131			`event_hash`,
132			`synced`
133			) VALUES (
134			:calendar,
135			:calendar_event_id,
136			:event_hash,
137			:synced
138			)"
139			);
140
141			$params = [
142			'calendar' => $this->getCalendar()->getId(),
			0 ignored issues – show Bug introduced 2016-09-03 03:00 UTC by Report Bug Copy Issue Report The method `getId()` cannot be called from this context as it is declared protected in class `smtech\CanvasICSSync\SyncIntoCanvas\Calendar`. This check looks for access to methods that are not accessible from the current context. If you need to make a method accessible to another context you can raise its visibility level in the defining class. Loading history...
143			'event_hash' => $this->getHash(),
144			'synced' => static::getTimestamp()
145			];
146
147			$select->execute($params);
148			if ($select->fetch() !== false) {
149			$update->execute($params);
150			} else {
151			/*
152			* FIXME: how sure are we of this? issue:14
153			*/
154			/*
155			* multi-day event instance start times need to be changed to
156			* _this_ date
157			*/
158			$start = new DateTime(
159			iCalUtilityFunctions::_date2strdate(
160			$this->getProperty('DTSTART')
161			)
162			);
163			$end = new DateTime(
164			iCalUtilityFunctions::_date2strdate(
165			$this->getProperty('DTEND')
166			)
167			);
168			if ($this->getProperty('X-RECURRENCE')) {
169			$start = new DateTime($this->getProperty('X-CURRENT-DTSTART')[1]);
170			$end = new DateTime($this->getProperty('X-CURRENT-DTEND')[1]);
171			}
172			$start->setTimeZone(new DateTimeZone(self::LOCAL_TIMEZONE));
173			$end->setTimeZone(new DateTimeZone(self::LOCAL_TIMEZONE));
174
175			$calendarEvent = $api->post(
176			"/calendar_events",
177			[
			0 ignored issues – show Documentation introduced 2016-09-03 03:00 UTC by Report Bug Copy Issue Report `array('calendar_event' =...tProperty('LOCATION')))` is of type `array<string,array<strin...ation_name\":\"*\"}>"}>`, but the function expects a `string\|array<integer,string>`. It seems like the type of the argument is not accepted by the function/method which you are calling. In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug. We suggest to add an explicit type cast like in the following example: function acceptsInteger($int) { } $x = '123'; // string "123" // Instead of acceptsInteger($x); // we recommend to use acceptsInteger((integer) $x); Loading history...
178			'calendar_event' => [
179			'context_code' => $this->getCalendar()->getContextCode(),
180			/*
181			* TODO this should be configurable issue:5
182			*/
183			/* removing trailing [TAGS] from event title */
184			'title' => preg_replace(
185			'%^([^\]]+)(\s\[[^\]]+\]\s)+$%',
186			'\\1',
187			strip_tags($this->getProperty('SUMMARY'))
188			),
189			'description' => Markdown::defaultTransform(
190			str_replace(
191			'\n',
192			"\n\n",
193			$this->getProperty('DESCRIPTION', 1)
			0 ignored issues – show Unused Code introduced 2016-09-03 03:00 UTC by Report Bug Copy Issue Report The call to `Event::getProperty()` has too many arguments starting with `1`. This check compares calls to functions or methods with their respective definitions. If the call has more arguments than are defined, it raises an issue. If a function is defined several times with a different number of parameters, the check may pick up the wrong definition and report false positives. One codebase where this has been known to happen is Wordpress. In this case you can add the `@ignore` PhpDoc annotation to the duplicate definition and it will be ignored. Loading history...
194			)
195			),
196			'start_at' => $start->format(self::CANVAS_TIMESTAMP_FORMAT),
197			'end_at' => $end->format(self::CANVAS_TIMESTAMP_FORMAT),
198			'location_name' => $this->getProperty('LOCATION')
199			]
200			]
201			);
202			$params['calendar_event_id'] = $calendarEvent['id'];
203			$insert->execute($params);
204			}
205			}
206
207			public static function purgeUnmatched($timestamp, $calendar)
208			{
209			$db = static::getDatabase();
210			$api = static::getApi();
211
212			$findDeletedEvents = $db->prepare(
213			"SELECT *
214			FROM `events`
215			WHERE
216			`calendar` = :calendar AND
217			`synced` != :synced"
218			);
219			$deleteCachedEvent = $db->prepare(
220			"DELETE FROM `events` WHERE `id` = :id"
221			);
222
223			$findDeletedEvents->execute([
224			'calendar' => $calendar->getId(),
225			'synced' => $timestamp
226			]);
227			if (($deletedEvents = $findDeletedEvents->fetchAll()) !== false) {
228			foreach ($deletedEvents as $event) {
229			$params['cancel_reason'] = $timestamp;
			0 ignored issues – show Coding Style Comprehensibility introduced 2016-09-03 03:00 UTC by Report Bug Copy Issue Report `$params` was never initialized. Although not strictly required by PHP, it is generally a good practice to add `$params = array();` before regardless. Adding an explicit array definition is generally preferable to implicit array definition as it guarantees a stable state of the code. Let’s take a look at an example: foreach ($collection as $item) { $myArray['foo'] = $item->getFoo(); if ($item->hasBar()) { $myArray['bar'] = $item->getBar(); } // do something with $myArray } As you can see in this example, the array `$myArray` is initialized the first time when the foreach loop is entered. You can also see that the value of the `bar` key is only written conditionally; thus, its value might result from a previous iteration. This might or might not be intended. To make your intention clear, your code more readible and to avoid accidental bugs, we recommend to add an explicit initialization `$myArray = array()` either outside or inside the foreach loop. Loading history...
230			if ($calendar->getContext()->getContext() == 'user') {
231			$params['as_user_id'] = $calendar->getContext()->getId();
			0 ignored issues – show Bug introduced 2016-09-03 03:00 UTC by Report Bug Copy Issue Report The variable `$params` 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 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 $x; } } Define a default value for the variable: function myFunction($a) { $x = ''; // Set a default which gets overridden for certain paths. switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } echo $x; } Add a value for the missing path: function myFunction($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...
232			}
233			try {
234			$api->delete(
235			"/calendar_events/{$event['calendar_event[id]']}",
236			$params
237			);
238			} catch (Pest_Unauthorized $e) {
			0 ignored issues – show Coding Style Comprehensibility introduced 2016-09-03 03:00 UTC by Report Bug Copy Issue Report Consider adding a comment why this CATCH block is empty. Loading history... Bug introduced 2016-09-03 03:00 UTC by Report Bug Copy Issue Report The class `smtech\CanvasICSSync\Syn...anvas\Pest_Unauthorized` does not exist. Did you forget a USE statement, or did you not list all dependencies? Scrutinizer analyzes your `composer.json`/`composer.lock` file if available to determine the classes, and functions that are defined by your dependencies. It seems like the listed class was neither found in your dependencies, nor was it found in the analyzed files in your repository. If you are using some other form of dependency management, you might want to disable this analysis. Loading history...
239			/*
240			* Do nothing: an event was cached that had been deleted
241			* from Canvas -- deleting the cached event is
242			* inconsequential
243			*/
244			}
245			$deleteCachedEvent->execute($event['id']);
246			}
247			}
248			}
249			}
250

smtech / canvas-ics-sync

Push — develop ( 0fe9d6...4e1ddc )

Event::purgeUnmatched() B

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Duplication

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