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:
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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| 44 | class Column |
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| 45 | { |
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| 46 | use Column\HasHeader, |
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| 47 | Column\InlineEditing; |
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| 48 | |||
| 49 | const SELECT_COLUMN_NAME = '__row_selector__'; |
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| 50 | |||
| 51 | const ACTION_COLUMN_NAME = '__actions__'; |
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| 52 | |||
| 53 | /** |
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| 54 | * @var Grid |
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| 55 | */ |
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| 56 | protected $grid; |
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| 57 | |||
| 58 | /** |
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| 59 | * Name of column. |
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| 60 | * |
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| 61 | * @var string |
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| 62 | */ |
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| 63 | protected $name; |
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| 64 | |||
| 65 | /** |
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| 66 | * Label of column. |
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| 67 | * |
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| 68 | * @var string |
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| 69 | */ |
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| 70 | protected $label; |
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| 71 | |||
| 72 | /** |
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| 73 | * Original value of column. |
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| 74 | * |
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| 75 | * @var mixed |
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| 76 | */ |
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| 77 | protected $original; |
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| 78 | |||
| 79 | /** |
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| 80 | * Attributes of column. |
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| 81 | * |
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| 82 | * @var array |
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| 83 | */ |
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| 84 | protected $attributes = []; |
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| 85 | |||
| 86 | /** |
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| 87 | * Relation name. |
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| 88 | * |
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| 89 | * @var bool |
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| 90 | */ |
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| 91 | protected $relation = false; |
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| 92 | |||
| 93 | /** |
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| 94 | * Relation column. |
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| 95 | * |
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| 96 | * @var string |
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| 97 | */ |
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| 98 | protected $relationColumn; |
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| 99 | |||
| 100 | /** |
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| 101 | * Original grid data. |
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| 102 | * |
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| 103 | * @var Collection |
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| 104 | */ |
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| 105 | protected static $originalGridModels; |
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| 106 | |||
| 107 | /** |
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| 108 | * @var []Closure |
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| 109 | */ |
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| 110 | protected $displayCallbacks = []; |
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| 111 | |||
| 112 | /** |
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| 113 | * Displayers for grid column. |
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| 114 | * |
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| 115 | * @var array |
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| 116 | */ |
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| 117 | public static $displayers = [ |
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| 118 | 'editable' => Displayers\Editable::class, |
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| 119 | 'switch' => Displayers\SwitchDisplay::class, |
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| 120 | 'switchGroup' => Displayers\SwitchGroup::class, |
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| 121 | 'select' => Displayers\Select::class, |
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| 122 | 'image' => Displayers\Image::class, |
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| 123 | 'label' => Displayers\Label::class, |
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| 124 | 'button' => Displayers\Button::class, |
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| 125 | 'link' => Displayers\Link::class, |
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| 126 | 'badge' => Displayers\Badge::class, |
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| 127 | 'progressBar' => Displayers\ProgressBar::class, |
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| 128 | 'progress' => Displayers\ProgressBar::class, |
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| 129 | 'radio' => Displayers\Radio::class, |
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| 130 | 'checkbox' => Displayers\Checkbox::class, |
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| 131 | 'orderable' => Displayers\Orderable::class, |
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| 132 | 'table' => Displayers\Table::class, |
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| 133 | 'expand' => Displayers\Expand::class, |
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| 134 | 'modal' => Displayers\Modal::class, |
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| 135 | 'carousel' => Displayers\Carousel::class, |
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| 136 | 'downloadable' => Displayers\Downloadable::class, |
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| 137 | 'copyable' => Displayers\Copyable::class, |
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| 138 | 'qrcode' => Displayers\QRCode::class, |
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| 139 | 'prefix' => Displayers\Prefix::class, |
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| 140 | 'suffix' => Displayers\Suffix::class, |
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| 141 | 'secret' => Displayers\Secret::class, |
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| 142 | 'limit' => Displayers\Limit::class, |
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| 143 | ]; |
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| 144 | |||
| 145 | /** |
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| 146 | * Defined columns. |
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| 147 | * |
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| 148 | * @var array |
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| 149 | */ |
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| 150 | public static $defined = []; |
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| 151 | |||
| 152 | /** |
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| 153 | * @var array |
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| 154 | */ |
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| 155 | protected static $htmlAttributes = []; |
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| 156 | |||
| 157 | /** |
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| 158 | * @var array |
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| 159 | */ |
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| 160 | protected static $rowAttributes = []; |
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| 161 | |||
| 162 | /** |
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| 163 | * @var Model |
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| 164 | */ |
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| 165 | protected static $model; |
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| 166 | |||
| 167 | /** |
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| 168 | * @var bool |
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| 169 | */ |
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| 170 | protected $searchable = false; |
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| 171 | |||
| 172 | /** |
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| 173 | * @param string $name |
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| 174 | * @param string $label |
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| 175 | */ |
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| 176 | public function __construct($name, $label) |
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| 177 | { |
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| 178 | $this->name = $name; |
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| 179 | |||
| 180 | $this->label = $this->formatLabel($label); |
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| 181 | |||
| 182 | $this->initAttributes(); |
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| 183 | } |
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| 184 | |||
| 185 | /** |
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| 186 | * Initialize column attributes. |
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| 187 | */ |
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| 188 | protected function initAttributes() |
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| 189 | { |
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| 190 | $name = str_replace('.', '-', $this->name); |
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| 191 | |||
| 192 | $this->setAttributes(['class' => "column-{$name}"]); |
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| 193 | } |
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| 194 | |||
| 195 | /** |
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| 196 | * Extend column displayer. |
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| 197 | * |
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| 198 | * @param $name |
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| 199 | * @param $displayer |
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| 200 | */ |
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| 201 | public static function extend($name, $displayer) |
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| 202 | { |
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| 203 | static::$displayers[$name] = $displayer; |
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| 204 | } |
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| 205 | |||
| 206 | /** |
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| 207 | * Define a column globally. |
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| 208 | * |
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| 209 | * @param string $name |
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| 210 | * @param mixed $definition |
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| 211 | */ |
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| 212 | public static function define($name, $definition) |
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| 213 | { |
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| 214 | static::$defined[$name] = $definition; |
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| 215 | } |
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| 216 | |||
| 217 | /** |
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| 218 | * Set grid instance for column. |
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| 219 | * |
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| 220 | * @param Grid $grid |
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| 221 | */ |
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| 222 | public function setGrid(Grid $grid) |
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| 223 | { |
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| 224 | $this->grid = $grid; |
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| 225 | |||
| 226 | $this->setModel($grid->model()->eloquent()); |
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| 227 | } |
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| 228 | |||
| 229 | /** |
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| 230 | * Set model for column. |
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| 231 | * |
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| 232 | * @param $model |
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| 233 | */ |
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| 234 | public function setModel($model) |
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| 235 | { |
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| 236 | if (is_null(static::$model) && ($model instanceof BaseModel)) { |
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| 237 | static::$model = $model->newInstance(); |
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| 238 | } |
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| 239 | } |
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| 240 | |||
| 241 | /** |
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| 242 | * Set original data for column. |
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| 243 | * |
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| 244 | * @param Collection $collection |
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| 245 | */ |
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| 246 | public static function setOriginalGridModels(Collection $collection) |
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| 247 | { |
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| 248 | static::$originalGridModels = $collection; |
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| 249 | } |
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| 250 | |||
| 251 | /** |
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| 252 | * Set column attributes. |
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| 253 | * |
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| 254 | * @param array $attributes |
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| 255 | * |
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| 256 | * @return $this |
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| 257 | */ |
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| 258 | public function setAttributes($attributes = [], $key = null) |
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| 259 | { |
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| 260 | if ($key) { |
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| 261 | static::$rowAttributes[$this->name][$key] = array_merge( |
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| 262 | Arr::get(static::$rowAttributes, "{$this->name}.{$key}", []), |
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| 263 | $attributes |
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| 264 | ); |
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| 265 | |||
| 266 | return $this; |
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| 267 | } |
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| 268 | |||
| 269 | static::$htmlAttributes[$this->name] = array_merge( |
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| 270 | Arr::get(static::$htmlAttributes, $this->name, []), |
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| 271 | $attributes |
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| 272 | ); |
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| 273 | |||
| 274 | return $this; |
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| 275 | } |
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| 276 | |||
| 277 | /** |
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| 278 | * Get column attributes. |
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| 279 | * |
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| 280 | * @param string $name |
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| 281 | * |
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| 282 | * @return mixed |
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| 283 | */ |
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| 284 | public static function getAttributes($name, $key = null) |
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| 285 | { |
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| 286 | $rowAttributes = []; |
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| 287 | |||
| 288 | if ($key && Arr::has(static::$rowAttributes, "{$name}.{$key}")) { |
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| 289 | $rowAttributes = Arr::get(static::$rowAttributes, "{$name}.{$key}", []); |
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| 290 | } |
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| 291 | |||
| 292 | $columnAttributes = Arr::get(static::$htmlAttributes, $name, []); |
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| 293 | |||
| 294 | return array_merge($rowAttributes, $columnAttributes); |
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| 295 | } |
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| 296 | |||
| 297 | /** |
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| 298 | * Format attributes to html. |
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| 299 | * |
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| 300 | * @return string |
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| 301 | */ |
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| 302 | public function formatHtmlAttributes() |
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| 303 | { |
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| 304 | $attrArr = []; |
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| 305 | foreach (static::getAttributes($this->name) as $name => $val) { |
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| 306 | $attrArr[] = "$name=\"$val\""; |
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| 307 | } |
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| 308 | |||
| 309 | return implode(' ', $attrArr); |
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| 310 | } |
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| 311 | |||
| 312 | /** |
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| 313 | * Set style of this column. |
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| 314 | * |
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| 315 | * @param string $style |
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| 316 | * |
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| 317 | * @return $this |
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| 318 | */ |
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| 319 | public function style($style) |
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| 320 | { |
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| 321 | return $this->setAttributes(compact('style')); |
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| 322 | } |
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| 323 | |||
| 324 | /** |
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| 325 | * Set the width of column. |
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| 326 | * |
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| 327 | * @param int $width |
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| 328 | * |
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| 329 | * @return $this |
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| 330 | */ |
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| 331 | public function width(int $width) |
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| 332 | { |
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| 333 | return $this->style("width: {$width}px;max-width: {$width}px;word-wrap: break-word;word-break: normal;"); |
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| 334 | } |
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| 335 | |||
| 336 | /** |
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| 337 | * Set the color of column. |
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| 338 | * |
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| 339 | * @param string $color |
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| 340 | * |
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| 341 | * @return $this |
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| 342 | */ |
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| 343 | public function color($color) |
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| 344 | { |
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| 345 | return $this->style("color:$color;"); |
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| 346 | } |
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| 347 | |||
| 348 | /** |
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| 349 | * Get original column value. |
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| 350 | * |
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| 351 | * @return mixed |
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| 352 | */ |
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| 353 | public function getOriginal() |
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| 354 | { |
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| 355 | return $this->original; |
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| 356 | } |
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| 357 | |||
| 358 | /** |
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| 359 | * Get name of this column. |
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| 360 | * |
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| 361 | * @return mixed |
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| 362 | */ |
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| 363 | public function getName() |
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| 364 | { |
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| 365 | return $this->name; |
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| 366 | } |
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| 367 | |||
| 368 | /** |
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| 369 | * @return string |
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| 370 | */ |
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| 371 | public function getClassName() |
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| 372 | { |
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| 373 | $name = str_replace('.', '-', $this->getName()); |
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| 374 | |||
| 375 | return "column-{$name}"; |
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| 376 | } |
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| 377 | |||
| 378 | /** |
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| 379 | * Format label. |
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| 380 | * |
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| 381 | * @param $label |
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| 382 | * |
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| 383 | * @return mixed |
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| 384 | */ |
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| 385 | protected function formatLabel($label) |
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| 386 | { |
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| 387 | if ($label) { |
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| 388 | return $label; |
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| 389 | } |
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| 390 | |||
| 391 | $label = ucfirst($this->name); |
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| 392 | |||
| 393 | return __(str_replace(['.', '_'], ' ', $label)); |
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| 394 | } |
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| 395 | |||
| 396 | /** |
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| 397 | * Get label of the column. |
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| 398 | * |
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| 399 | * @return mixed |
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| 400 | */ |
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| 401 | public function getLabel() |
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| 402 | { |
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| 403 | return $this->label; |
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| 404 | } |
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| 405 | |||
| 406 | /** |
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| 407 | * Set relation. |
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| 408 | * |
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| 409 | * @param string $relation |
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| 410 | * @param string $relationColumn |
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| 411 | * |
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| 412 | * @return $this |
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| 413 | */ |
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| 414 | public function setRelation($relation, $relationColumn = null) |
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| 415 | { |
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| 416 | $this->relation = $relation; |
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| 417 | $this->relationColumn = $relationColumn; |
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| 418 | |||
| 419 | return $this; |
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| 420 | } |
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| 421 | |||
| 422 | /** |
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| 423 | * If this column is relation column. |
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| 424 | * |
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| 425 | * @return bool |
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| 426 | */ |
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| 427 | protected function isRelation() |
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| 428 | { |
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| 429 | return (bool) $this->relation; |
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| 430 | } |
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| 431 | |||
| 432 | /** |
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| 433 | * Mark this column as sortable. |
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| 434 | * |
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| 435 | * @param null|string $cast |
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| 436 | * |
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| 437 | * @return Column|string |
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| 438 | */ |
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| 439 | public function sortable($cast = null) |
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| 440 | { |
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| 441 | return $this->addSorter($cast); |
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| 442 | } |
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| 443 | |||
| 444 | /** |
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| 445 | * Set cast name for sortable. |
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| 446 | * |
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| 447 | * @return $this |
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| 448 | * |
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| 449 | * @deprecated Use `$column->sortable($cast)` instead. |
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| 450 | */ |
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| 451 | public function cast($cast) |
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| 452 | { |
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| 453 | $this->cast = $cast; |
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| 454 | |||
| 455 | return $this; |
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| 456 | } |
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| 457 | |||
| 458 | /** |
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| 459 | * Set help message for column. |
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| 460 | * |
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| 461 | * @param string $help |
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| 462 | * |
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| 463 | * @return $this|string |
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| 464 | */ |
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| 465 | public function help($help = '') |
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| 466 | { |
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| 467 | return $this->addHelp($help); |
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| 468 | } |
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| 469 | |||
| 470 | /** |
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| 471 | * Set column filter. |
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| 472 | * |
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| 473 | * @param mixed|null $builder |
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| 474 | * |
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| 475 | * @return $this |
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| 476 | */ |
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| 477 | public function filter($builder = null) |
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| 478 | { |
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| 479 | return $this->addFilter(...func_get_args()); |
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| 480 | } |
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| 481 | |||
| 482 | /** |
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| 483 | * Set column as searchable. |
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| 484 | * |
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| 485 | * @return $this |
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| 486 | */ |
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| 487 | public function searchable() |
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| 488 | { |
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| 489 | $this->searchable = true; |
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| 490 | |||
| 491 | $name = $this->getName(); |
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| 492 | $query = request()->query(); |
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| 493 | |||
| 494 | $this->prefix(function ($_, $original) use ($name, $query) { |
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| 495 | Arr::set($query, $name, $original); |
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| 496 | |||
| 497 | $url = request()->fullUrlWithQuery($query); |
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| 498 | |||
| 499 | return "<a href=\"{$url}\"><i class=\"fa fa-search\"></i></a>"; |
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| 500 | }, ' '); |
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| 501 | |||
| 502 | return $this; |
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| 503 | } |
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| 504 | |||
| 505 | /** |
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| 506 | * Bind search query to grid model. |
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| 507 | * |
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| 508 | * @param Model $model |
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| 509 | */ |
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| 510 | public function bindSearchQuery(Model $model) |
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| 511 | { |
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| 512 | if ($this->searchable && ($value = request($this->getName())) != '') { |
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| 513 | $model->where($this->getName(), $value); |
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| 514 | } |
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| 515 | } |
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| 516 | |||
| 517 | /** |
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| 518 | * Add a display callback. |
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| 519 | * |
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| 520 | * @param Closure $callback |
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| 521 | * |
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| 522 | * @return $this |
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| 523 | */ |
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| 524 | public function display(Closure $callback) |
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| 530 | |||
| 531 | /** |
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| 532 | * Display using display abstract. |
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| 533 | * |
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| 534 | * @param string $abstract |
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| 535 | * @param array $arguments |
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| 536 | * |
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| 537 | * @return $this |
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| 538 | */ |
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| 539 | public function displayUsing($abstract, $arguments = []) |
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| 552 | |||
| 553 | /** |
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| 554 | * Display column using array value map. |
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| 555 | * |
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| 556 | * @param array $values |
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| 557 | * @param null $default |
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| 558 | * |
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| 559 | * @return $this |
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| 560 | */ |
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| 561 | View Code Duplication | public function using(array $values, $default = null) |
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| 571 | |||
| 572 | /** |
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| 573 | * Replace output value with giving map. |
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| 574 | * |
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| 575 | * @param array $replacements |
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| 576 | * |
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| 577 | * @return $this |
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| 578 | */ |
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| 579 | public function replace(array $replacements) |
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| 589 | |||
| 590 | /** |
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| 591 | * @param string|Closure $input |
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| 592 | * @param string $seperator |
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| 593 | * |
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| 594 | * @return $this |
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| 595 | */ |
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| 596 | public function repeat($input, $seperator = '') |
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| 597 | { |
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| 598 | if (is_string($input)) { |
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| 599 | $input = function () use ($input) { |
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| 600 | return $input; |
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| 601 | }; |
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| 602 | } |
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| 603 | |||
| 604 | if ($input instanceof Closure) { |
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| 605 | return $this->display(function ($value) use ($input, $seperator) { |
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| 606 | return join($seperator, array_fill(0, (int) $value, $input->call($this, [$value]))); |
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| 607 | }); |
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| 608 | } |
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| 609 | |||
| 610 | return $this; |
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| 611 | } |
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| 612 | |||
| 613 | /** |
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| 614 | * Render this column with the given view. |
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| 615 | * |
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| 616 | * @param string $view |
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| 617 | * |
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| 618 | * @return $this |
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| 619 | */ |
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| 620 | public function view($view) |
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| 628 | |||
| 629 | /** |
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| 630 | * Hide this column by default. |
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| 631 | * |
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| 632 | * @return $this |
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| 633 | */ |
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| 634 | public function hide() |
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| 640 | |||
| 641 | /** |
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| 642 | * Add column to total-row. |
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| 643 | * |
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| 644 | * @param null $display |
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| 645 | * |
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| 646 | * @return $this |
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| 647 | */ |
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| 648 | public function totalRow($display = null) |
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| 654 | |||
| 655 | /** |
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| 656 | * Convert file size to a human readable format like `100mb`. |
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| 657 | * |
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| 658 | * @return $this |
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| 659 | */ |
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| 660 | public function filesize() |
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| 666 | |||
| 667 | /** |
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| 668 | * Display the fields in the email format as gavatar. |
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| 669 | * |
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| 670 | * @param int $size |
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| 671 | * |
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| 672 | * @return $this |
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| 673 | */ |
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| 674 | public function gravatar($size = 30) |
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| 686 | |||
| 687 | /** |
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| 688 | * Display field as a loading icon. |
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| 689 | * |
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| 690 | * @param array $values |
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| 691 | * @param array $others |
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| 692 | * |
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| 693 | * @return $this |
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| 694 | */ |
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| 695 | public function loading($values = [], $others = []) |
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| 707 | |||
| 708 | /** |
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| 709 | * Display column as an font-awesome icon based on it's value. |
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| 710 | * |
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| 711 | * @param array $setting |
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| 712 | * @param string $default |
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| 713 | * |
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| 714 | * @return $this |
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| 715 | */ |
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| 716 | public function icon(array $setting, $default = '') |
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| 730 | |||
| 731 | /** |
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| 732 | * Return a human readable format time. |
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| 733 | * |
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| 734 | * @param null $locale |
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| 735 | * |
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| 736 | * @return $this |
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| 737 | */ |
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| 738 | public function diffForHumans($locale = null) |
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| 748 | |||
| 749 | /** |
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| 750 | * Display column as boolean , `✓` for true, and `✗` for false. |
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| 751 | * |
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| 752 | * @param array $map |
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| 753 | * @param bool $default |
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| 754 | * |
||
| 755 | * @return $this |
||
| 756 | */ |
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| 757 | public function bool(array $map = [], $default = false) |
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| 765 | |||
| 766 | /** |
||
| 767 | * Display column as a default value if empty. |
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| 768 | * |
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| 769 | * @param string $default |
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| 770 | * @return $this |
||
| 771 | */ |
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| 772 | public function default($default = '-') |
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| 778 | |||
| 779 | /** |
||
| 780 | * Display column using a grid row action. |
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| 781 | * |
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| 782 | * @param string $action |
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| 783 | * |
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| 784 | * @return $this |
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| 785 | */ |
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| 786 | public function action($action) |
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| 805 | |||
| 806 | /** |
||
| 807 | * Add a `dot` before column text. |
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| 808 | * |
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| 809 | * @param array $options |
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| 810 | * @param string $default |
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| 811 | * |
||
| 812 | * @return $this |
||
| 813 | */ |
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| 814 | public function dot($options = [], $default = '') |
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| 826 | |||
| 827 | /** |
||
| 828 | * If has display callbacks. |
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| 829 | * |
||
| 830 | * @return bool |
||
| 831 | */ |
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| 832 | protected function hasDisplayCallbacks() |
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| 836 | |||
| 837 | /** |
||
| 838 | * Call all of the "display" callbacks column. |
||
| 839 | * |
||
| 840 | * @param mixed $value |
||
| 841 | * @param int $key |
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| 842 | * |
||
| 843 | * @return mixed |
||
| 844 | */ |
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| 845 | protected function callDisplayCallbacks($value, $key) |
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| 863 | |||
| 864 | /** |
||
| 865 | * Set original grid data to column. |
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| 866 | * |
||
| 867 | * @param Closure $callback |
||
| 868 | * @param int $key |
||
| 869 | * |
||
| 870 | * @return Closure |
||
| 871 | */ |
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| 872 | protected function bindOriginalRowModel(Closure $callback, $key) |
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| 878 | |||
| 879 | /** |
||
| 880 | * Fill all data to every column. |
||
| 881 | * |
||
| 882 | * @param array $data |
||
| 883 | * |
||
| 884 | * @return mixed |
||
| 885 | */ |
||
| 886 | public function fill(array $data) |
||
| 907 | |||
| 908 | /** |
||
| 909 | * If current column is a defined column. |
||
| 910 | * |
||
| 911 | * @return bool |
||
| 912 | */ |
||
| 913 | protected function isDefinedColumn() |
||
| 917 | |||
| 918 | /** |
||
| 919 | * Use a defined column. |
||
| 920 | * |
||
| 921 | * @throws \Exception |
||
| 922 | */ |
||
| 923 | protected function useDefinedColumn() |
||
| 950 | |||
| 951 | /** |
||
| 952 | * Convert characters to HTML entities recursively. |
||
| 953 | * |
||
| 954 | * @param array|string $item |
||
| 955 | * |
||
| 956 | * @return mixed |
||
| 957 | */ |
||
| 958 | protected function htmlEntityEncode($item) |
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| 970 | |||
| 971 | /** |
||
| 972 | * Find a displayer to display column. |
||
| 973 | * |
||
| 974 | * @param string $abstract |
||
| 975 | * @param array $arguments |
||
| 976 | * |
||
| 977 | * @return $this |
||
| 978 | */ |
||
| 979 | protected function resolveDisplayer($abstract, $arguments) |
||
| 987 | |||
| 988 | /** |
||
| 989 | * Call Illuminate/Support displayer. |
||
| 990 | * |
||
| 991 | * @param string $abstract |
||
| 992 | * @param array $arguments |
||
| 993 | * |
||
| 994 | * @return $this |
||
| 995 | */ |
||
| 996 | protected function callSupportDisplayer($abstract, $arguments) |
||
| 1010 | |||
| 1011 | /** |
||
| 1012 | * Call Builtin displayer. |
||
| 1013 | * |
||
| 1014 | * @param string $abstract |
||
| 1015 | * @param array $arguments |
||
| 1016 | * |
||
| 1017 | * @return $this |
||
| 1018 | */ |
||
| 1019 | protected function callBuiltinDisplayer($abstract, $arguments) |
||
| 1041 | |||
| 1042 | /** |
||
| 1043 | * Passes through all unknown calls to builtin displayer or supported displayer. |
||
| 1044 | * |
||
| 1045 | * Allow fluent calls on the Column object. |
||
| 1046 | * |
||
| 1047 | * @param string $method |
||
| 1048 | * @param array $arguments |
||
| 1049 | * |
||
| 1050 | * @return $this |
||
| 1051 | */ |
||
| 1052 | public function __call($method, $arguments) |
||
| 1065 | } |
||
| 1066 |
It seems like the method you are trying to call exists only in some of the possible types.
Let’s take a look at an example:
Available Fixes
Add an additional type-check:
Only allow a single type to be passed if the variable comes from a parameter: