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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20 | abstract class Column extends FilterableColumn |
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21 | { |
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22 | |||
23 | /** |
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24 | * @var array |
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25 | */ |
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26 | protected $replacements = []; |
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27 | |||
28 | /** |
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29 | * @var Renderer|NULL |
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30 | */ |
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31 | protected $renderer; |
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32 | |||
33 | /** |
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34 | * @var string |
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35 | */ |
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36 | protected $template; |
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37 | |||
38 | /** |
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39 | * @var bool|string |
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40 | */ |
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41 | protected $sortable = FALSE; |
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42 | |||
43 | /** |
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44 | * @var bool |
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45 | */ |
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46 | protected $sortable_reset_pagination = FALSE; |
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47 | |||
48 | /** |
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49 | * @var null|callable |
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50 | */ |
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51 | protected $sortable_callback = NULL; |
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52 | |||
53 | /** |
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54 | * @var array |
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55 | */ |
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56 | protected $sort; |
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57 | |||
58 | /** |
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59 | * @var bool |
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60 | */ |
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61 | protected $template_escaping = TRUE; |
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62 | |||
63 | /** |
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64 | * @var string |
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65 | */ |
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66 | protected $align; |
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67 | |||
68 | /** |
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69 | * @var array |
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70 | */ |
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71 | protected $template_variables = []; |
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72 | |||
73 | /** |
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74 | * @var callable |
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75 | */ |
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76 | protected $editable_callback; |
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77 | |||
78 | /** |
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79 | * Cached html elements |
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80 | * @var array |
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81 | */ |
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82 | protected $el_cache = []; |
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83 | |||
84 | /** |
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85 | * @var bool |
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86 | */ |
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87 | protected $default_hide = FALSE; |
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88 | |||
89 | |||
90 | /** |
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91 | * Render row item into template |
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92 | * @param Row $row |
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93 | * @return mixed |
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94 | */ |
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95 | public function render(Row $row) |
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96 | { |
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97 | /** |
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98 | * Renderer function may be used |
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99 | */ |
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100 | try { |
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101 | return $this->useRenderer($row); |
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102 | } catch (DataGridColumnRendererException $e) { |
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103 | /** |
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104 | * Do not use renderer |
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105 | */ |
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106 | } |
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107 | |||
108 | /** |
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109 | * Or replacements may be applied |
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110 | */ |
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111 | list($do_replace, $replaced) = $this->applyReplacements($row); |
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112 | if ($do_replace) { |
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113 | return $replaced; |
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114 | } |
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115 | |||
116 | return $this->getColumnValue($row); |
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117 | } |
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118 | |||
119 | |||
120 | /** |
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121 | * Try to render item with custom renderer |
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122 | * @param Row $row |
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123 | * @return mixed |
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124 | */ |
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125 | public function useRenderer(Row $row) |
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126 | { |
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127 | $renderer = $this->getRenderer(); |
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128 | |||
129 | if (!$renderer) { |
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130 | throw new DataGridColumnRendererException; |
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131 | } |
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132 | |||
133 | if ($renderer->getConditionCallback()) { |
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134 | if (!call_user_func_array($renderer->getConditionCallback(), [$row->getItem()])) { |
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135 | throw new DataGridColumnRendererException; |
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136 | } |
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137 | |||
138 | return call_user_func_array($renderer->getCallback(), [$row->getItem()]); |
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139 | } |
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140 | |||
141 | return call_user_func_array($renderer->getCallback(), [$row->getItem()]); |
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142 | } |
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143 | |||
144 | |||
145 | /** |
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146 | * Should be column values escaped in latte? |
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147 | * @param bool $template_escaping |
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148 | */ |
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149 | public function setTemplateEscaping($template_escaping = TRUE) |
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155 | |||
156 | |||
157 | public function isTemplateEscaped() |
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161 | |||
162 | |||
163 | /** |
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164 | * Set column sortable or not |
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165 | * @param bool|string $sortable |
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166 | */ |
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167 | public function setSortable($sortable = TRUE) |
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173 | |||
174 | |||
175 | /** |
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176 | * Tell whether column is sortable |
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177 | * @return bool |
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178 | */ |
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179 | public function isSortable() |
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183 | |||
184 | |||
185 | /** |
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186 | * Shoud be the pagination reseted after sorting? |
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187 | * @param bool $sortable_reset_pagination |
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188 | * @return static |
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189 | */ |
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190 | public function setSortableResetPagination($sortable_reset_pagination = TRUE) |
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196 | |||
197 | |||
198 | /** |
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199 | * DO reset pagination after sorting? |
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200 | * @return bool |
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201 | */ |
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202 | public function sortableResetPagination() |
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206 | |||
207 | |||
208 | /** |
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209 | * Set custom ORDER BY clause |
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210 | * @param callable $sortable_callback |
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211 | * @return static |
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212 | */ |
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213 | public function setSortableCallback(callable $sortable_callback) |
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219 | |||
220 | |||
221 | /** |
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222 | * Get custom ORDER BY clause |
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223 | * @return callable|null |
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224 | */ |
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225 | public function getSortableCallback() |
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229 | |||
230 | |||
231 | /** |
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232 | * Get column to sort by |
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233 | * @return string |
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234 | */ |
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235 | public function getSortingColumn() |
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239 | |||
240 | |||
241 | /** |
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242 | * Get column name |
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243 | * @return string |
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244 | */ |
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245 | public function getColumnName() |
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249 | |||
250 | |||
251 | /** |
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252 | * Get column value of row item |
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253 | * @param Row $row |
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254 | * @return mixed |
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255 | */ |
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256 | public function getColumnValue(Row $row) |
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260 | |||
261 | |||
262 | /** |
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263 | * @return string |
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264 | */ |
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265 | public function getName() |
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269 | |||
270 | |||
271 | /** |
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272 | * Set column replacements |
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273 | * @param array $replacements |
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274 | * @return Column |
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275 | */ |
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276 | public function setReplacement(array $replacements) |
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282 | |||
283 | |||
284 | /** |
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285 | * Tell whether columns has replacements |
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286 | * @return bool |
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287 | */ |
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288 | public function hasReplacements() |
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292 | |||
293 | |||
294 | /** |
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295 | * Apply replacements |
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296 | * @param Row $row |
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297 | * @return array |
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298 | */ |
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299 | public function applyReplacements(Row $row) |
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309 | |||
310 | |||
311 | /** |
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312 | * Set renderer callback and (it may be optional - the condition callback will decide) |
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313 | * @param callable $renderer |
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314 | */ |
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315 | public function setRenderer($renderer, $condition_callback = NULL) |
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339 | |||
340 | |||
341 | /** |
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342 | * Set renderer callback just if condition is truthy |
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343 | * @param callable $renderer |
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344 | */ |
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345 | public function setRendererOnCondition($renderer, $condition_callback) |
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349 | |||
350 | |||
351 | /** |
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352 | * Return custom renderer callback |
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353 | * @return Renderer|null |
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354 | */ |
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355 | public function getRenderer() |
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359 | |||
360 | |||
361 | /** |
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362 | * Column may have its own template |
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363 | * @param string $template |
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364 | */ |
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365 | public function setTemplate($template, array $template_variables = []) |
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372 | |||
373 | |||
374 | /** |
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375 | * Column can have variables that will be passed to custom template scope |
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376 | * @return array |
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377 | */ |
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378 | public function getTemplateVariables() |
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382 | |||
383 | |||
384 | /** |
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385 | * Tell whether column has its owntemplate |
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386 | * @return bool |
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387 | */ |
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388 | public function hasTemplate() |
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392 | |||
393 | |||
394 | /** |
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395 | * Get column template path |
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396 | * @return string |
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397 | */ |
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398 | public function getTemplate() |
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402 | |||
403 | |||
404 | /** |
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405 | * Tell whether data source is sorted by this collumn |
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406 | * @return bool |
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407 | */ |
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408 | public function isSortedBy() |
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412 | |||
413 | |||
414 | /** |
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415 | * Tell column his sorting options |
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416 | * @param array $sort |
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417 | */ |
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418 | public function setSort(array $sort) |
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424 | |||
425 | |||
426 | /** |
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427 | * What sorting will be applied after next click? |
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428 | * @return array |
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429 | */ |
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430 | public function getSortNext() |
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440 | |||
441 | |||
442 | /** |
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443 | * Is sorting ascending? |
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444 | * @return bool |
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445 | */ |
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446 | public function isSortAsc() |
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450 | |||
451 | |||
452 | /** |
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453 | * Set column alignment |
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454 | * @param string $align |
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455 | */ |
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456 | public function setAlign($align) |
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462 | |||
463 | |||
464 | /** |
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465 | * Has column some alignment? |
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466 | * @return bool [description] |
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467 | */ |
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468 | public function hasAlign() |
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472 | |||
473 | |||
474 | /** |
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475 | * Get column alignment |
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476 | * @return string |
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477 | */ |
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478 | public function getAlign() |
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482 | |||
483 | |||
484 | /** |
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485 | * Set callback that will be called after inline editing |
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486 | * @param callable $editable_callback |
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487 | */ |
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488 | public function setEditableCallback(callable $editable_callback) |
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494 | |||
495 | |||
496 | /** |
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497 | * Return callback that is used after inline editing |
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498 | * @return callable |
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499 | */ |
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500 | public function getEditableCallback() |
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504 | |||
505 | |||
506 | /** |
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507 | * Is column editable? |
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508 | * @return bool |
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509 | */ |
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510 | public function isEditable() |
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514 | |||
515 | |||
516 | /** |
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517 | * Set attributes for both th and td element |
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518 | * @param array $attrs |
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519 | * @return static |
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520 | */ |
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521 | public function addAttributes(array $attrs) |
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528 | |||
529 | |||
530 | /** |
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531 | * Get th/td column element |
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532 | * @param string $tag th|td |
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533 | * @param string $key |
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534 | * @param Row|NULL $row |
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535 | * @return Html |
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536 | */ |
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537 | public function getElementPrototype($tag, $key = NULL, Row $row = NULL) |
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577 | |||
578 | |||
579 | /** |
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580 | * @param bool $default_hide |
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581 | * @return static |
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582 | */ |
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583 | public function setDefaultHide($default_hide = TRUE) |
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589 | |||
590 | |||
591 | public function getDefaultHide() |
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595 | |||
596 | |||
597 | /** |
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598 | * Create link to custom destination |
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599 | * @param string $href |
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600 | * @param array $params |
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601 | * @return string |
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602 | * @throws DataGridHasToBeAttachedToPresenterComponentException |
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603 | * @throws InvalidArgumentException |
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604 | */ |
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605 | protected function createLink($href, $params) |
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621 | |||
622 | |||
623 | /** |
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624 | * Get row item params (E.g. action may be called id => $item->id, name => $item->name, ...) |
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625 | * @param Row $row |
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626 | * @param array $params_list |
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627 | * @return array |
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628 | */ |
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629 | protected function getItemParams(Row $row, array $params_list) |
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639 | |||
640 | } |
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641 |