Complex classes like Column often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Column, and based on these observations, apply Extract Interface, too.
1 | <?php |
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36 | abstract class Column extends \Grido\Components\Component |
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37 | 1 | { |
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38 | const ID = 'columns'; |
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39 | |||
40 | const VALUE_IDENTIFIER = '%value'; |
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41 | |||
42 | const ORDER_ASC = 'asc'; |
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43 | const ORDER_DESC = 'desc'; |
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44 | |||
45 | /** @var string */ |
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46 | protected $sort; |
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47 | |||
48 | /** @var string */ |
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49 | protected $column; |
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50 | |||
51 | /** @var \Nette\Utils\Html <td> html tag */ |
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52 | protected $cellPrototype; |
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53 | |||
54 | /** @var callback returns td html element; function($row, Html $td) */ |
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55 | protected $cellCallback; |
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56 | |||
57 | /** @var \Nette\Utils\Html <th> html tag */ |
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58 | protected $headerPrototype; |
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59 | |||
60 | /** @var mixed custom rendering */ |
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61 | protected $customRender; |
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62 | |||
63 | /** @var array custom rendering template variables */ |
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64 | protected $customRenderVariables = []; |
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65 | |||
66 | /** @var mixed custom export rendering */ |
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67 | protected $customRenderExport; |
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68 | |||
69 | /** @var bool */ |
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70 | protected $sortable = FALSE; |
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71 | |||
72 | /** @var array of arrays('pattern' => 'replacement') */ |
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73 | protected $replacements = []; |
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74 | 1 | ||
75 | /** |
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76 | * @param \Grido\Grid $grid |
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77 | * @param string $name |
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78 | * @param string $label |
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79 | */ |
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80 | public function __construct($grid, $name, $label) |
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81 | { |
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82 | 1 | $this->addComponentToGrid($grid, Helpers::formatColumnName($name)); |
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83 | |||
84 | 1 | $this->type = get_class($this); |
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85 | 1 | $this->label = $label; |
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86 | 1 | } |
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87 | |||
88 | /** |
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89 | * @param bool $sortable |
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90 | * @return Column |
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91 | */ |
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92 | public function setSortable($sortable = TRUE) |
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93 | { |
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94 | 1 | $this->sortable = (bool) $sortable; |
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95 | 1 | return $this; |
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96 | } |
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97 | |||
98 | /** |
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99 | * @param array $replacement array('pattern' => 'replacement') |
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100 | * @return Column |
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101 | */ |
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102 | public function setReplacement(array $replacement) |
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103 | { |
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104 | 1 | $this->replacements = $this->replacements + $replacement; |
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105 | 1 | return $this; |
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106 | } |
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107 | |||
108 | /** |
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109 | * @param mixed $column |
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110 | * @return Column |
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111 | */ |
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112 | public function setColumn($column) |
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113 | { |
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114 | 1 | $this->column = $column; |
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115 | 1 | return $this; |
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116 | } |
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117 | 1 | ||
118 | /** |
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119 | * @param string $dir |
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120 | * @return Column |
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121 | */ |
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122 | public function setDefaultSort($dir) |
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123 | { |
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124 | 1 | $this->grid->setDefaultSort([$this->getName() => $dir]); |
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125 | 1 | return $this; |
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126 | } |
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127 | |||
128 | /** |
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129 | * @param mixed $callback callback or string for name of template filename |
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130 | * @param array $variables - template variables |
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131 | * @return Column |
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132 | */ |
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133 | public function setCustomRender($callback, $variables = []) |
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134 | { |
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135 | 1 | $this->customRender = $callback; |
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136 | 1 | $this->customRenderVariables = $variables; |
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137 | |||
138 | 1 | return $this; |
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139 | } |
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140 | |||
141 | /** |
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142 | * @param mixed $callback | |
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143 | * @return Column |
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144 | */ |
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145 | public function setCustomRenderExport($callback) |
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146 | { |
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147 | 1 | $this->customRenderExport = $callback; |
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148 | 1 | return $this; |
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149 | } |
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150 | |||
151 | /** |
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152 | * @param callback $callback |
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153 | * @return Column |
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154 | */ |
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155 | public function setCellCallback($callback) |
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156 | { |
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157 | 1 | $this->cellCallback = $callback; |
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158 | 1 | return $this; |
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159 | } |
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160 | |||
161 | /**********************************************************************************************/ |
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162 | |||
163 | /** |
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164 | * Returns cell prototype (<td> html tag). |
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165 | * @param mixed $row |
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166 | * @return \Nette\Utils\Html |
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167 | */ |
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168 | public function getCellPrototype($row = NULL) |
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184 | |||
185 | /** |
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186 | * Returns header cell prototype (<th> html tag). |
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187 | * @return \Nette\Utils\Html |
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188 | */ |
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189 | public function getHeaderPrototype() |
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190 | { |
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191 | 1 | if ($this->headerPrototype === NULL) { |
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192 | 1 | $this->headerPrototype = \Nette\Utils\Html::el('th') |
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193 | 1 | ->setClass(['column', 'grid-header-' . $this->getName()]); |
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194 | 1 | } |
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195 | |||
196 | 1 | if ($this->isSortable() && $this->getSort()) { |
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197 | 1 | $this->headerPrototype->class[] = $this->getSort() == self::ORDER_DESC |
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198 | 1 | ? 'desc' |
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199 | 1 | : 'asc'; |
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200 | 1 | } |
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201 | |||
202 | 1 | return $this->headerPrototype; |
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203 | } |
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204 | |||
205 | /** |
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206 | * @return mixed |
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207 | * @internal |
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208 | */ |
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209 | public function getColumn() |
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213 | |||
214 | /** |
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215 | * @return string |
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216 | * @internal |
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217 | */ |
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218 | public function getSort() |
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232 | |||
233 | /** |
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234 | * @return mixed |
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235 | * @internal |
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236 | */ |
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237 | public function getCustomRender() |
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241 | |||
242 | /** |
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243 | * @return array |
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244 | * @internal |
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245 | */ |
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246 | public function getCustomRenderVariables() |
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250 | |||
251 | /** |
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252 | * @return mixed |
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253 | * @internal |
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254 | */ |
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255 | public function getLabel() |
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256 | { |
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257 | 1 | return is_string($this->label) |
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258 | 1 | ? $this->translate($this->label) |
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259 | 1 | : $this->label; |
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260 | } |
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261 | |||
262 | /**********************************************************************************************/ |
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263 | |||
264 | /** |
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265 | * @return bool |
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266 | * @internal |
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267 | */ |
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268 | public function isSortable() |
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272 | |||
273 | /** |
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274 | * @return bool |
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275 | * @internal |
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276 | */ |
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277 | public function hasFilter() |
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278 | { |
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279 | 1 | return (bool) $this->grid->getFilter($this->getName(), FALSE); |
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280 | } |
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281 | |||
282 | /**********************************************************************************************/ |
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283 | |||
284 | /** |
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285 | * @param mixed $row |
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286 | 1 | * @return string |
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287 | * @internal |
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288 | */ |
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289 | public function render($row) |
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290 | { |
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291 | 1 | if (is_callable($this->customRender)) { |
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292 | 1 | return call_user_func_array($this->customRender, [$row]); |
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293 | } |
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294 | |||
295 | 1 | $value = $this->getValue($row); |
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296 | 1 | return $this->formatValue($value); |
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297 | } |
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298 | |||
299 | /** |
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300 | * @param mixed $row |
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301 | * @return string |
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302 | * @internal |
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303 | */ |
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304 | public function renderExport($row) |
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305 | { |
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306 | 1 | if (is_callable($this->customRenderExport)) { |
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307 | 1 | return call_user_func_array($this->customRenderExport, [$row]); |
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308 | } |
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309 | |||
310 | 1 | $value = $this->getValue($row); |
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311 | 1 | return strip_tags($this->applyReplacement($value)); |
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312 | } |
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313 | |||
314 | /** |
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315 | * @param mixed $row |
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316 | 1 | * @throws Exception |
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317 | * @return mixed |
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318 | */ |
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319 | protected function getValue($row) |
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320 | { |
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321 | 1 | $column = $this->getColumn(); |
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322 | 1 | if (is_string($column)) { |
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323 | 1 | return $this->grid->getProperty($row, Helpers::unformatColumnName($column)); |
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324 | |||
325 | } elseif (is_callable($column)) { |
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326 | return call_user_func_array($column, [$row]); |
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327 | 1 | ||
328 | } else { |
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329 | throw new Exception('Column must be string or callback.'); |
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330 | } |
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331 | } |
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332 | |||
333 | /** |
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334 | * @param mixed $value |
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335 | * @return mixed |
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336 | */ |
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337 | 1 | protected function applyReplacement($value) |
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338 | { |
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339 | 1 | return (is_scalar($value) || $value === NULL) && isset($this->replacements[$value]) |
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340 | 1 | ? is_string($value) |
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341 | 1 | ? str_replace(static::VALUE_IDENTIFIER, $value, $this->replacements[$value]) |
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342 | 1 | : $this->replacements[$value] |
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343 | 1 | : $value; |
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344 | } |
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345 | |||
346 | /** |
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347 | 1 | * @param mixed $value |
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348 | * @return mixed |
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349 | */ |
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350 | protected function formatValue($value) |
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351 | { |
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352 | 1 | $value = is_string($value) |
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353 | 1 | ? \Latte\Runtime\Filters::escapeHtml($value) |
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354 | 1 | : $value; |
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355 | |||
356 | 1 | return $this->applyReplacement($value); |
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357 | } |
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358 | |||
359 | /******************************* Aliases for filters ******************************************/ |
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360 | |||
361 | /** |
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362 | * @return \Grido\Components\Filters\Text |
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363 | */ |
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364 | public function setFilterText() |
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368 | |||
369 | /** |
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370 | * @return \Grido\Components\Filters\Date |
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371 | */ |
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372 | public function setFilterDate() |
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376 | |||
377 | /** |
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378 | * @return \Grido\Components\Filters\DateRange |
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379 | */ |
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380 | public function setFilterDateRange() |
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384 | |||
385 | /** |
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386 | * @return \Grido\Components\Filters\Check |
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387 | */ |
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388 | public function setFilterCheck() |
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392 | |||
393 | /** |
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394 | * @param array $items |
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395 | * @return \Grido\Components\Filters\Select |
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396 | */ |
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397 | public function setFilterSelect(array $items = NULL) |
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401 | |||
402 | /** |
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403 | * @return \Grido\Components\Filters\Number |
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404 | */ |
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405 | public function setFilterNumber() |
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409 | |||
410 | /** |
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411 | * @param \Nette\Forms\IControl $formControl |
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412 | * @return \Grido\Components\Filters\Custom |
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413 | */ |
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414 | public function setFilterCustom(\Nette\Forms\IControl $formControl) |
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418 | } |
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419 |