DatabaseLogReader::clearCache() - Code Metrics - Inspection of "Copy SESP (ApprovedRevs) properties (#1)" - SemanticMediaWiki/SemanticApprovedRevs - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 946aec...bc2207 )

by mw

created 2019-03-02 17:24 UTC

DatabaseLogReader::clearCache() A

↳ Parent: DatabaseLogReader

Complexity

Conditions	1
Paths	1

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	3
CRAP Score	1

Importance

Changes

Metric	Value
dl	0
loc	3
rs	10
c	0
b	0
f	0
ccs	3
cts	3
cp	1
cc	1
nc	1
nop	0
crap	1

<?php

namespace SMW\ApprovedRevs;

use ArrayIterator;
use DatabaseLogEntry;
use DatabaseBase;
use MWTimestamp;
use Title;
use User;

class DatabaseLogReader {

	/**
	 * @var array
	 */
	private static $titleCache = [];

	/**
	 * @var DatabaseBase
	 */
	private $dbr;

	/**
	 * @var string
	 */
	private $query;

	/**
	 * @var string
	 */
	private $log;

	/**
	 * @var string
	 */
	private $dbKey;

	/**
	 * @var string
	 */
	private $type;

	/**
	 * @since 1.0
	 *
	 * @param DatabaseaBase $dbr injected connection
	 * @param Title|null $title
	 * @param string $type of log (default: approval)
	 */
	public function __construct( DatabaseBase $dbr, Title $title = null , $type = 'approval' ) {
		$this->dbr = $dbr;
		$this->dbKey = $title instanceof Title ? $title->getDBkey() : null;

		$this->type = $type;
	}

	/**
	 * @since 1.0
	 */
	public function clearCache() {
		self::$titleCache = [];
	}

	/**
	 * Fetch the query parameters for later calls
	 *
	 * @since 1.0
	 *
	 * @return array of parameters for SELECT call
	 */
	public function getQuery() {
		return $this->query;
	}

	/**
	 * @since 1.0
	 *
	 * @param Title|null $title
	 * @param string $type
	 *
	 * @return User
	 */
	public function getUserForLogEntry( Title $title = null, $type = 'approval' ) {

		$this->init( $title, $type );
		$logLine = $this->getLog()->current();

		if ( $logLine && $logLine->user_id ) {
			return User::newFromID( $logLine->user_id );
		}
	}

	/**
	 * @since 1.0
	 *
	 * @param Title|null $title
	 * @param string $type
	 *
	 * @return Timestamp
	 */
	public function getDateOfLogEntry( Title $title = null, $type = 'approval' ) {

		$this->init( $title, $type );
		$logLine = $this->getLog()->current();

		if ( $logLine && $logLine->log_timestamp ) {
			return new MWTimestamp( $logLine->log_timestamp );
		}
	}

	/**
	 * @since 1.0
	 *
	 * @param Title|null $title
	 * @param string $type
	 *
	 * @return string
	 */
	public function getStatusOfLogEntry( Title $title = null, $type = 'approval' ) {

		$this->init( $title, $type );
		$logLine = $this->getLog()->current();

		if ( $logLine && $logLine->log_action ) {
			return $logLine->log_action;
		}
	}

	/**
	 * Take care of loading from the cache or filling the query.
	 */
	private function init( $title, $type ) {

		$this->dbKey = $title instanceof Title ? $title->getDBkey() : null;

		$this->type = $type;

		if ( $this->query ) {
			return;
		}

		if ( !isset( self::$titleCache[ $this->dbKey . '#' . $this->type ] ) ) {
			$this->query = DatabaseLogEntry::getSelectQueryData();

			$this->query['conds'] = [
				'log_type' => $this->type,
				'log_title' => $this->dbKey
			];
			$this->query['options'] = [ 'ORDER BY' => 'log_timestamp desc' ];
			self::$titleCache[ $this->dbKey ] = $this;
		} else {
			$cache = self::$titleCache[ $this->dbKey . '#' . $this->type ];
			$this->query = $cache->getQuery();
			$this->log = $cache->getLog();
		}

	}

	/**
	 * Fetch the results using our conditions
	 *
	 * @return IResultWrapper
	 * @throws DBError
	 */
	private function getLog() {

		if ( $this->log !== null ) {
			return $this->log;
class Author {
    private $name;

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

    public function getName() {
        return $this->name;
    }
}

abstract class Post {
    public function getAuthor() {
        return 'Johannes';
    }
}

class BlogPost extends Post {
    public function getAuthor() {
        return new Author('Johannes');
    }
}

class ForumPost extends Post { /* ... */ }

function my_function(Post $post) {
    echo strtoupper($post->getAuthor());
}
		}

		$query = $this->getQuery();

		$this->log = $this->dbr->select(
			$query['tables'],
			$query['fields'],
			$query['conds'],
			__METHOD__,
			$query['options'],
			$query['join_conds']
		);

		if ( $this->log === null ) {
			$this->log = new ArrayIterator(

				[ (object)[
					'user_id' => null,
					'log_timestamp' => null,
					'log_action' => null
				] ]
			);
		}

		return $this->log;
	}

}


1		<?php
2
3		namespace SMW\ApprovedRevs;
4
5		use ArrayIterator;
6		use DatabaseLogEntry;
7		use DatabaseBase;
8		use MWTimestamp;
9		use Title;
10		use User;
11
12		class DatabaseLogReader {
13
14		/**
15		* @var array
16		*/
17		private static $titleCache = [];
18
19		/**
20		* @var DatabaseBase
21		*/
22		private $dbr;
23
24		/**
25		* @var string
26		*/
27		private $query;
28
29		/**
30		* @var string
31		*/
32		private $log;
33
34		/**
35		* @var string
36		*/
37		private $dbKey;
38
39		/**
40		* @var string
41		*/
42		private $type;
43
44		/**
45		* @since 1.0
46		*
47		* @param DatabaseaBase $dbr injected connection
48		* @param Title\|null $title
49		* @param string $type of log (default: approval)
50		*/
51	6	public function __construct( DatabaseBase $dbr, Title $title = null , $type = 'approval' ) {
52	6	$this->dbr = $dbr;
53	6	$this->dbKey = $title instanceof Title ? $title->getDBkey() : null;
		0 ignored issues – show Bug introduced 2019-03-02 17:21 UTC by Report Bug Copy Issue Report The class `Title` does not exist. Is this class maybe located in a folder that is not analyzed, or in a newer version of your dependencies than listed in your composer.lock/composer.json? Loading history...
54	6	$this->type = $type;
55	6	}
56
57		/**
58		* @since 1.0
59		*/
60	1	public function clearCache() {
61	1	self::$titleCache = [];
62	1	}
63
64		/**
65		* Fetch the query parameters for later calls
66		*
67		* @since 1.0
68		*
69		* @return array of parameters for SELECT call
70		*/
71	5	public function getQuery() {
72	5	return $this->query;
73		}
74
75		/**
76		* @since 1.0
77		*
78		* @param Title\|null $title
79		* @param string $type
80		*
81		* @return User
82		*/
83	4	public function getUserForLogEntry( Title $title = null, $type = 'approval' ) {
84
85	4	$this->init( $title, $type );
86	4	$logLine = $this->getLog()->current();
87
88	4	if ( $logLine && $logLine->user_id ) {
89	2	return User::newFromID( $logLine->user_id );
90		}
91	2	}
92
93		/**
94		* @since 1.0
95		*
96		* @param Title\|null $title
97		* @param string $type
98		*
99		* @return Timestamp
100		*/
101	2	public function getDateOfLogEntry( Title $title = null, $type = 'approval' ) {
102
103	2	$this->init( $title, $type );
104	2	$logLine = $this->getLog()->current();
105
106	2	if ( $logLine && $logLine->log_timestamp ) {
107	1	return new MWTimestamp( $logLine->log_timestamp );
108		}
109	1	}
110
111		/**
112		* @since 1.0
113		*
114		* @param Title\|null $title
115		* @param string $type
116		*
117		* @return string
118		*/
119	2	public function getStatusOfLogEntry( Title $title = null, $type = 'approval' ) {
120
121	2	$this->init( $title, $type );
122	2	$logLine = $this->getLog()->current();
123
124	2	if ( $logLine && $logLine->log_action ) {
125	1	return $logLine->log_action;
126		}
127	1	}
128
129		/**
130		* Take care of loading from the cache or filling the query.
131		*/
132	4	private function init( $title, $type ) {
133
134	4	$this->dbKey = $title instanceof Title ? $title->getDBkey() : null;
		0 ignored issues – show Bug introduced 2019-03-02 17:21 UTC by Report Bug Copy Issue Report The class `Title` does not exist. Is this class maybe located in a folder that is not analyzed, or in a newer version of your dependencies than listed in your composer.lock/composer.json? Loading history...
135	4	$this->type = $type;
136
137	4	if ( $this->query ) {
138	3	return;
139		}
140
141	4	if ( !isset( self::$titleCache[ $this->dbKey . '#' . $this->type ] ) ) {
142	4	$this->query = DatabaseLogEntry::getSelectQueryData();
143
144	4	$this->query['conds'] = [
145	4	'log_type' => $this->type,
146	4	'log_title' => $this->dbKey
147		];
148	4	$this->query['options'] = [ 'ORDER BY' => 'log_timestamp desc' ];
149	4	self::$titleCache[ $this->dbKey ] = $this;
150		} else {
151		$cache = self::$titleCache[ $this->dbKey . '#' . $this->type ];
152		$this->query = $cache->getQuery();
153		$this->log = $cache->getLog();
154		}
155
156	4	}
157
158		/**
159		* Fetch the results using our conditions
160		*
161		* @return IResultWrapper
162		* @throws DBError
163		*/
164	4	private function getLog() {
165
166	4	if ( $this->log !== null ) {
167	3	return $this->log;
		0 ignored issues – show Bug Best Practice introduced 2019-03-02 17:21 UTC by Report Bug Copy Issue Report The return type of `return $this->log;` (`string`) is incompatible with the return type documented by `SMW\ApprovedRevs\DatabaseLogReader::getLog` of type `SMW\ApprovedRevs\IResultWrapper`. If you return a value from a function or method, it should be a sub-type of the type that is given by the parent type f.e. an interface, or abstract method. This is more formally defined by the Lizkov substitution principle, and guarantees that classes that depend on the parent type can use any instance of a child type interchangably. This principle also belongs to the SOLID principles for object oriented design. Let’s take a look at an example: class Author { private $name; public function __construct($name) { $this->name = $name; } public function getName() { return $this->name; } } abstract class Post { public function getAuthor() { return 'Johannes'; } } class BlogPost extends Post { public function getAuthor() { return new Author('Johannes'); } } class ForumPost extends Post { /* ... */ } function my_function(Post $post) { echo strtoupper($post->getAuthor()); } Our function `my_function` expects a `Post` object, and outputs the author of the post. The base class `Post` returns a simple string and outputting a simple string will work just fine. However, the child class `BlogPost` which is a sub-type of `Post` instead decided to return an `object`, and is therefore violating the SOLID principles. If a `BlogPost` were passed to `my_function`, PHP would not complain, but ultimately fail when executing the `strtoupper` call in its body. Loading history...
168		}
169
170	4	$query = $this->getQuery();
171
172	4	$this->log = $this->dbr->select(
173	4	$query['tables'],
174	4	$query['fields'],
175	4	$query['conds'],
176	4	__METHOD__,
177	4	$query['options'],
178	4	$query['join_conds']
179		);
180
181	4	if ( $this->log === null ) {
182		$this->log = new ArrayIterator(
		0 ignored issues – show Documentation Bug introduced 2019-03-02 17:21 UTC by Report Bug Copy Issue Report It seems like `new \ArrayIterator(array...'log_action' => null)))` of type `object<ArrayIterator>` is incompatible with the declared type `string` of property `$log`. Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property. Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property.. Loading history...
183		[ (object)[
184		'user_id' => null,
185		'log_timestamp' => null,
186		'log_action' => null
187		] ]
188		);
189		}
190
191	4	return $this->log;
192		}
193
194		}
195

SemanticMediaWiki / SemanticApprovedRevs

Push — master ( 946aec...bc2207 )

DatabaseLogReader::clearCache() A

Complexity

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