CleanupPreferences::execute()   A
last analyzed

Complexity

Conditions 2
Paths 2

Size

Total Lines 15
Code Lines 11

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
cc 2
eloc 11
nc 2
nop 0
dl 0
loc 15
rs 9.4285
c 0
b 0
f 0
1
<?php
0 ignored issues
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Coding Style Compatibility introduced by
For compatibility and reusability of your code, PSR1 recommends that a file should introduce either new symbols (like classes, functions, etc.) or have side-effects (like outputting something, or including other files), but not both at the same time. The first symbol is defined on line 33 and the first side effect is on line 26.

The PSR-1: Basic Coding Standard recommends that a file should either introduce new symbols, that is classes, functions, constants or similar, or have side effects. Side effects are anything that executes logic, like for example printing output, changing ini settings or writing to a file.

The idea behind this recommendation is that merely auto-loading a class should not change the state of an application. It also promotes a cleaner style of programming and makes your code less prone to errors, because the logic is not spread out all over the place.

To learn more about the PSR-1, please see the PHP-FIG site on the PSR-1.

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/**
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 * Remove hidden preferences from the database.
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 *
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 * This program is free software; you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation; either version 2 of the License, or
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 * (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License along
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 * with this program; if not, write to the Free Software Foundation, Inc.,
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 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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 * http://www.gnu.org/copyleft/gpl.html
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 *
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 * @file
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 * @author TyA <[email protected]>
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 * @see https://phabricator.wikimedia.org/T32976
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 * @ingroup Maintenance
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 */
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require_once __DIR__ . '/Maintenance.php';
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/**
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 * Maintenance script that removes hidden preferences from the database.
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 *
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 * @ingroup Maintenance
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 */
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class CleanupPreferences extends Maintenance {
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	public function execute() {
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		global $wgHiddenPrefs;
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		$dbw = $this->getDB( DB_MASTER );
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		$this->beginTransaction( $dbw, __METHOD__ );
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Bug introduced by
It seems like $dbw defined by $this->getDB(DB_MASTER) on line 37 can be null; however, Maintenance::beginTransaction() does not accept null, maybe add an additional type check?

Unless you are absolutely sure that the expression can never be null because of other conditions, we strongly recommend to add an additional type check to your code:

/** @return stdClass|null */
function mayReturnNull() { }

function doesNotAcceptNull(stdClass $x) { }

// With potential error.
function withoutCheck() {
    $x = mayReturnNull();
    doesNotAcceptNull($x); // Potential error here.
}

// Safe - Alternative 1
function withCheck1() {
    $x = mayReturnNull();
    if ( ! $x instanceof stdClass) {
        throw new \LogicException('$x must be defined.');
    }
    doesNotAcceptNull($x);
}

// Safe - Alternative 2
function withCheck2() {
    $x = mayReturnNull();
    if ($x instanceof stdClass) {
        doesNotAcceptNull($x);
    }
}
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		foreach ( $wgHiddenPrefs as $item ) {
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			$dbw->delete(
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				'user_properties',
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				[ 'up_property' => $item ],
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				__METHOD__
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			);
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		};
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		$this->commitTransaction( $dbw, __METHOD__ );
0 ignored issues
show
Bug introduced by
It seems like $dbw defined by $this->getDB(DB_MASTER) on line 37 can be null; however, Maintenance::commitTransaction() does not accept null, maybe add an additional type check?

Unless you are absolutely sure that the expression can never be null because of other conditions, we strongly recommend to add an additional type check to your code:

/** @return stdClass|null */
function mayReturnNull() { }

function doesNotAcceptNull(stdClass $x) { }

// With potential error.
function withoutCheck() {
    $x = mayReturnNull();
    doesNotAcceptNull($x); // Potential error here.
}

// Safe - Alternative 1
function withCheck1() {
    $x = mayReturnNull();
    if ( ! $x instanceof stdClass) {
        throw new \LogicException('$x must be defined.');
    }
    doesNotAcceptNull($x);
}

// Safe - Alternative 2
function withCheck2() {
    $x = mayReturnNull();
    if ($x instanceof stdClass) {
        doesNotAcceptNull($x);
    }
}
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		$this->output( "Finished!\n" );
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	}
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}
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$maintClass = 'CleanupPreferences'; // Tells it to run the class
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require_once RUN_MAINTENANCE_IF_MAIN;
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