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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24 | class ElementTray extends Element implements ContainerInterface |
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25 | { |
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26 | /** |
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27 | * array of form element objects |
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28 | * |
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29 | * @var Element[] |
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30 | */ |
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31 | protected $elements = array(); |
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32 | |||
33 | /** |
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34 | * __construct |
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35 | * |
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36 | * @param string|array $caption caption or array of all attributes |
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37 | * Control attributes: |
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38 | * :joiner joiner for elements in tray |
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39 | * @param string $joiner joiner for elements in tray |
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40 | * @param string $name name |
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41 | */ |
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42 | 1 | View Code Duplication | public function __construct($caption, $joiner = ' ', $name = '') |
43 | { |
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44 | 1 | if (is_array($caption)) { |
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45 | parent::__construct($caption); |
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46 | $this->setIfNotSet(':joiner', ' '); |
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47 | } else { |
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48 | 1 | parent::__construct(); |
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49 | 1 | $this->setName($name); |
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50 | 1 | $this->setCaption($caption); |
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51 | 1 | $this->set(':joiner', $joiner); |
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52 | } |
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53 | 1 | } |
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54 | |||
55 | /** |
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56 | * Are there are required elements? |
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57 | * |
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58 | * @return bool |
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59 | */ |
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60 | 2 | public function isRequired() |
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61 | { |
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62 | 2 | foreach ($this->elements as $el) { |
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63 | 2 | if ($el->isRequired()) { |
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64 | 2 | return true; |
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65 | } |
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66 | } |
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67 | 2 | return false; |
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68 | } |
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69 | |||
70 | /** |
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71 | * Add an element to the tray |
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72 | * |
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73 | * @param Element $formElement Element to add |
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74 | * @param boolean $required true = entry required |
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75 | * |
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76 | * @return void |
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77 | */ |
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78 | 1 | public function addElement(Element $formElement, $required = false) |
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79 | { |
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80 | 1 | $this->elements[] = $formElement; |
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81 | 1 | if ($required) { |
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82 | $formElement->setRequired(); |
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83 | } |
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84 | 1 | } |
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85 | |||
86 | // ContainerInterface |
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87 | /** |
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88 | * get an array of "required" form elements |
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89 | * |
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90 | * @return array array of Element objects |
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91 | */ |
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92 | View Code Duplication | public function getRequired() |
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93 | { |
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94 | $required = []; |
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95 | foreach ($this->elements as $el) { |
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96 | if ($el->isRequired()) { |
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97 | $required[] = $el; |
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98 | } |
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99 | } |
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100 | return $required; |
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101 | } |
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102 | |||
103 | /** |
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104 | * Get an array of the elements in this group |
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105 | * |
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106 | * @param bool $recurse get elements recursively? |
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107 | * |
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108 | * @return array Array of Element objects. |
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109 | */ |
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110 | 1 | View Code Duplication | public function getElements($recurse = false) |
111 | { |
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112 | 1 | if (!$recurse) { |
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113 | 1 | return $this->elements; |
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114 | } else { |
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115 | 1 | $ret = array(); |
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116 | 1 | foreach ($this->elements as $ele) { |
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117 | 1 | if ($ele instanceof ContainerInterface) { |
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118 | /* @var ContainerInterface $ele */ |
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119 | $elements = $ele->getElements(true); |
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120 | foreach ($elements as $ele2) { |
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121 | $ret[] = $ele2; |
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122 | } |
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123 | unset($elements); |
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124 | unset($ele2); |
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125 | } else { |
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126 | 1 | $ret[] = $ele; |
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127 | } |
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128 | 1 | unset($ele); |
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129 | } |
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130 | 1 | return $ret; |
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131 | } |
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132 | } |
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133 | |||
134 | /** |
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135 | * Get the delimiter of this group |
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136 | * |
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137 | * @param boolean $encode True to encode special characters |
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138 | * |
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139 | * @return string The delimiter |
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140 | */ |
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141 | 1 | protected function getJoiner($encode = false) |
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146 | |||
147 | /** |
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148 | * prepare HTML to output this group |
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149 | * |
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150 | * @return string HTML output |
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151 | */ |
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152 | 5 | public function render() |
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174 | } |
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175 |