Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
1 | <?php |
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22 | class EmailRecipientCondition extends DataObject |
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23 | { |
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24 | /** |
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25 | * List of options |
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26 | * |
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27 | * @config |
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28 | * @var array |
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29 | */ |
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30 | private static $condition_options = [ |
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31 | 'IsBlank' => 'Is blank', |
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32 | 'IsNotBlank' => 'Is not blank', |
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33 | 'Equals' => 'Equals', |
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34 | 'NotEquals' => "Doesn't equal", |
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35 | 'ValueLessThan' => 'Less than', |
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36 | 'ValueLessThanEqual' => 'Less than or equal', |
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37 | 'ValueGreaterThan' => 'Greater than', |
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38 | 'ValueGreaterThanEqual' => 'Greater than or equal' |
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39 | ]; |
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40 | |||
41 | private static $db = [ |
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42 | 'ConditionOption' => 'Enum("IsBlank,IsNotBlank,Equals,NotEquals,ValueLessThan,ValueLessThanEqual,ValueGreaterThan,ValueGreaterThanEqual")', |
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43 | 'ConditionValue' => 'Varchar' |
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44 | ]; |
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45 | |||
46 | private static $has_one = [ |
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47 | 'Parent' => EmailRecipient::class, |
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48 | 'ConditionField' => EditableFormField::class |
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49 | ]; |
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50 | |||
51 | private static $table_name = 'UserDefinedForm_EmailRecipientCondition'; |
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52 | |||
53 | /** |
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54 | * |
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55 | * Determine if this rule matches the given condition |
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56 | * |
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57 | * @param $data |
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58 | * |
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59 | * @return bool|null |
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60 | * @throws LogicException |
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61 | */ |
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62 | public function matches($data) |
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104 | |||
105 | /** |
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106 | * Return whether a user can create an object of this type |
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107 | * |
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108 | * @param Member $member |
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109 | * @param array $context Virtual parameter to allow context to be passed in to check |
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110 | * @return bool |
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111 | */ |
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112 | View Code Duplication | public function canCreate($member = null, $context = []) |
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123 | |||
124 | /** |
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125 | * Helper method to check the parent for this object |
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126 | * |
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127 | * @param array $args List of arguments passed to canCreate |
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128 | * @return SiteTree Parent page instance |
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129 | */ |
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130 | View Code Duplication | protected function getCanCreateContext($args) |
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144 | |||
145 | /** |
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146 | * @param Member |
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147 | * |
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148 | * @return boolean |
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149 | */ |
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150 | public function canView($member = null) |
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154 | |||
155 | /** |
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156 | * @param Member |
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157 | * |
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158 | * @return boolean |
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159 | */ |
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160 | public function canEdit($member = null) |
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164 | |||
165 | /** |
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166 | * @param Member |
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167 | * |
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168 | * @return boolean |
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169 | */ |
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170 | public function canDelete($member = null) |
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174 | } |
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175 |
This check marks private properties in classes that are never used. Those properties can be removed.