Conditions | 26 |
Paths | 11520 |
Total Lines | 115 |
Code Lines | 69 |
Lines | 18 |
Ratio | 15.65 % |
Changes | 0 |
Small methods make your code easier to understand, in particular if combined with a good name. Besides, if your method is small, finding a good name is usually much easier.
For example, if you find yourself adding comments to a method's body, this is usually a good sign to extract the commented part to a new method, and use the comment as a starting point when coming up with a good name for this new method.
Commonly applied refactorings include:
If many parameters/temporary variables are present:
1 | <?php |
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33 | public function execute() { |
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34 | $this->useTransactionalTimeLimit(); |
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35 | |||
36 | $user = $this->getUser(); |
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37 | $params = $this->extractRequestParams(); |
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38 | |||
39 | $this->requireOnlyOneParameter( $params, 'from', 'fromid' ); |
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40 | |||
41 | View Code Duplication | if ( isset( $params['from'] ) ) { |
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42 | $fromTitle = Title::newFromText( $params['from'] ); |
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43 | if ( !$fromTitle || $fromTitle->isExternal() ) { |
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44 | $this->dieUsageMsg( [ 'invalidtitle', $params['from'] ] ); |
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45 | } |
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46 | } elseif ( isset( $params['fromid'] ) ) { |
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47 | $fromTitle = Title::newFromID( $params['fromid'] ); |
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48 | if ( !$fromTitle ) { |
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49 | $this->dieUsageMsg( [ 'nosuchpageid', $params['fromid'] ] ); |
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50 | } |
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51 | } |
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52 | |||
53 | if ( !$fromTitle->exists() ) { |
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54 | $this->dieUsageMsg( 'notanarticle' ); |
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55 | } |
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56 | $fromTalk = $fromTitle->getTalkPage(); |
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57 | |||
58 | $toTitle = Title::newFromText( $params['to'] ); |
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59 | if ( !$toTitle || $toTitle->isExternal() ) { |
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60 | $this->dieUsageMsg( [ 'invalidtitle', $params['to'] ] ); |
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61 | } |
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62 | $toTalk = $toTitle->getTalkPage(); |
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63 | |||
64 | if ( $toTitle->getNamespace() == NS_FILE |
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65 | && !RepoGroup::singleton()->getLocalRepo()->findFile( $toTitle ) |
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66 | && wfFindFile( $toTitle ) |
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67 | ) { |
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68 | if ( !$params['ignorewarnings'] && $user->isAllowed( 'reupload-shared' ) ) { |
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69 | $this->dieUsageMsg( 'sharedfile-exists' ); |
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70 | } elseif ( !$user->isAllowed( 'reupload-shared' ) ) { |
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71 | $this->dieUsageMsg( 'cantoverwrite-sharedfile' ); |
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72 | } |
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73 | } |
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74 | |||
75 | // Rate limit |
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76 | if ( $user->pingLimiter( 'move' ) ) { |
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77 | $this->dieUsageMsg( 'actionthrottledtext' ); |
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78 | } |
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79 | |||
80 | // Move the page |
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81 | $toTitleExists = $toTitle->exists(); |
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82 | $status = $this->movePage( $fromTitle, $toTitle, $params['reason'], !$params['noredirect'] ); |
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83 | if ( !$status->isOK() ) { |
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84 | $this->dieStatus( $status ); |
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85 | } |
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86 | |||
87 | $r = [ |
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88 | 'from' => $fromTitle->getPrefixedText(), |
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89 | 'to' => $toTitle->getPrefixedText(), |
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90 | 'reason' => $params['reason'] |
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91 | ]; |
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92 | |||
93 | // NOTE: we assume that if the old title exists, it's because it was re-created as |
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94 | // a redirect to the new title. This is not safe, but what we did before was |
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95 | // even worse: we just determined whether a redirect should have been created, |
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96 | // and reported that it was created if it should have, without any checks. |
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97 | // Also note that isRedirect() is unreliable because of bug 37209. |
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98 | $r['redirectcreated'] = $fromTitle->exists(); |
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99 | |||
100 | $r['moveoverredirect'] = $toTitleExists; |
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101 | |||
102 | // Move the talk page |
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103 | if ( $params['movetalk'] && $fromTalk->exists() && !$fromTitle->isTalkPage() ) { |
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104 | $toTalkExists = $toTalk->exists(); |
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105 | $status = $this->movePage( $fromTalk, $toTalk, $params['reason'], !$params['noredirect'] ); |
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106 | if ( $status->isOK() ) { |
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107 | $r['talkfrom'] = $fromTalk->getPrefixedText(); |
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108 | $r['talkto'] = $toTalk->getPrefixedText(); |
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109 | $r['talkmoveoverredirect'] = $toTalkExists; |
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110 | } else { |
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111 | // We're not gonna dieUsage() on failure, since we already changed something |
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112 | $error = $this->getErrorFromStatus( $status ); |
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113 | $r['talkmove-error-code'] = $error[0]; |
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114 | $r['talkmove-error-info'] = $error[1]; |
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115 | } |
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116 | } |
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117 | |||
118 | $result = $this->getResult(); |
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119 | |||
120 | // Move subpages |
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121 | if ( $params['movesubpages'] ) { |
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122 | $r['subpages'] = $this->moveSubpages( $fromTitle, $toTitle, |
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123 | $params['reason'], $params['noredirect'] ); |
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124 | ApiResult::setIndexedTagName( $r['subpages'], 'subpage' ); |
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125 | |||
126 | if ( $params['movetalk'] ) { |
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127 | $r['subpages-talk'] = $this->moveSubpages( $fromTalk, $toTalk, |
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128 | $params['reason'], $params['noredirect'] ); |
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129 | ApiResult::setIndexedTagName( $r['subpages-talk'], 'subpage' ); |
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130 | } |
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131 | } |
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132 | |||
133 | $watch = 'preferences'; |
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134 | View Code Duplication | if ( isset( $params['watchlist'] ) ) { |
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135 | $watch = $params['watchlist']; |
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136 | } elseif ( $params['watch'] ) { |
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137 | $watch = 'watch'; |
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138 | } elseif ( $params['unwatch'] ) { |
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139 | $watch = 'unwatch'; |
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140 | } |
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141 | |||
142 | // Watch pages |
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143 | $this->setWatch( $watch, $fromTitle, 'watchmoves' ); |
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144 | $this->setWatch( $watch, $toTitle, 'watchmoves' ); |
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145 | |||
146 | $result->addValue( null, $this->getModuleName(), $r ); |
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147 | } |
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148 | |||
265 |
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:
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:
Define a default value for the variable:
Add a value for the missing path: