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 Html 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 Html, and based on these observations, apply Extract Interface, too.
1 | <?php |
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25 | class Html |
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26 | { |
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27 | use Macroable; |
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28 | |||
29 | /** @var \Illuminate\Http\Request */ |
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30 | protected $request; |
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31 | |||
32 | /** @var \ArrayAccess|array */ |
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33 | protected $model; |
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34 | |||
35 | public function __construct(Request $request) |
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39 | |||
40 | /** |
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41 | * @param string|null $href |
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42 | * @param string|null $text |
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43 | * |
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44 | * @return \Spatie\Html\Elements\A |
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45 | */ |
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46 | public function a($href = null, $contents = null) |
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52 | |||
53 | /** |
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54 | * @param string|null $type |
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55 | * @param string|null $text |
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56 | * |
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57 | * @return \Spatie\Html\Elements\Button |
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58 | */ |
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59 | public function button($contents = null, $type = null) |
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65 | |||
66 | /** |
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67 | * @param \Illuminate\Support\Collection|iterable|string $classes |
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68 | * |
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69 | * @return \Illuminate\Contracts\Support\Htmlable |
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70 | */ |
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71 | public function class($classes): Htmlable |
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84 | |||
85 | /** |
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86 | * @param string|null $name |
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87 | * @param bool $checked |
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88 | * @param string|null $value |
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89 | * |
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90 | * @return \Spatie\Html\Elements\Input |
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91 | */ |
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92 | public function checkbox($name = null, $checked = false, $value = '1') |
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97 | |||
98 | /** |
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99 | * @param \Spatie\Html\HtmlElement|string|null $contents |
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100 | * |
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101 | * @return \Spatie\Html\Elements\Div |
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102 | */ |
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103 | public function div($contents = null) |
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107 | |||
108 | /** |
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109 | * @param string|null $name |
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110 | * @param string|null $value |
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111 | * |
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112 | * @return \Spatie\Html\Elements\Input |
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113 | */ |
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114 | public function email($name = '', $value = '') |
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118 | |||
119 | /** |
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120 | * @param string $tag |
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121 | * |
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122 | * @return \Spatie\Html\Elements\Element |
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123 | */ |
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124 | public function element($tag) |
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128 | |||
129 | /** |
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130 | * @param string|null $type |
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131 | * @param string|null $name |
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132 | * @param string|null $value |
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133 | * |
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134 | * @return \Spatie\Html\Elements\Input |
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135 | */ |
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136 | public function input($type = null, $name = null, $value = null) |
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144 | |||
145 | /** |
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146 | * @param \Spatie\Html\HtmlElement|string|null $legend |
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147 | * |
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148 | * @return \Spatie\Html\Elements\Fieldset |
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149 | */ |
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150 | public function fieldset($legend = null) |
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156 | |||
157 | /** |
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158 | * @param string $method |
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159 | * @param string|null $action |
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160 | * |
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161 | * @return \Spatie\Html\Elements\Form |
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162 | */ |
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163 | public function form($method = 'POST', $action = null) |
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183 | |||
184 | /** |
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185 | * @param string|null $name |
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186 | * @param string|null $value |
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187 | * |
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188 | * @return \Spatie\Html\Elements\Input |
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189 | */ |
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190 | public function hidden($name = null, $value = null) |
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194 | |||
195 | /** |
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196 | * @param \Spatie\Html\HtmlElement|iterable|string|null $contents |
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197 | * @param string|null $for |
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198 | * |
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199 | * @return \Spatie\Html\Elements\Label |
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200 | */ |
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201 | public function label($contents = null, $for = null) |
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207 | |||
208 | /** |
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209 | * @param \Spatie\Html\HtmlElement|string|null $contents |
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210 | * |
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211 | * @return \Spatie\Html\Elements\Legend |
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212 | */ |
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213 | public function legend($contents = null) |
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217 | |||
218 | /** |
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219 | * @param string $email |
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220 | * @param string|null $text |
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221 | * |
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222 | * @return \Spatie\Html\Elements\A |
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223 | */ |
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224 | public function mailto($email, $text = null) |
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228 | |||
229 | /** |
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230 | * @param string|null $name |
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231 | * @param iterable $options |
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232 | * @param string|iterable|null $value |
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233 | * |
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234 | * @return \Spatie\Html\Elements\Select |
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235 | */ |
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236 | View Code Duplication | public function multiselect($name = null, $options = [], $value = null) |
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245 | |||
246 | /** |
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247 | * @param string|null $text |
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248 | * @param string|null $value |
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249 | * @param bool $selected |
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250 | * |
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251 | * @return \Spatie\Html\Elements\Option |
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252 | */ |
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253 | public function option($text = null, $value = null, $selected = false) |
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260 | |||
261 | /** |
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262 | * @param string|null $value |
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263 | * |
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264 | * @return \Spatie\Html\Elements\Input |
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265 | */ |
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266 | public function password($name = null) |
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270 | |||
271 | /** |
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272 | * @param string|null $name |
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273 | * @param bool $checked |
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274 | * @param string|null $value |
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275 | * |
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276 | * @return \Spatie\Html\Elements\Input |
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277 | */ |
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278 | public function radio($name = null, $checked = false, $value = null) |
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283 | |||
284 | /** |
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285 | * @param string|null $name |
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286 | * @param iterable $options |
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287 | * @param string|iterable|null $value |
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288 | * |
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289 | * @return \Spatie\Html\Elements\Select |
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290 | */ |
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291 | View Code Duplication | public function select($name = null, $options = [], $value = null) |
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299 | |||
300 | /** |
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301 | * @param \Spatie\Html\HtmlElement|string|null $contents |
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302 | * |
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303 | * @return \Spatie\Html\Elements\Span |
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304 | */ |
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305 | public function span($contents = null) |
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309 | |||
310 | /** |
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311 | * @param string|null $text |
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312 | * |
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313 | * @return \Spatie\Html\Elements\Button |
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314 | */ |
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315 | public function submit($text = null) |
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319 | |||
320 | /** |
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321 | * @param string|null $text |
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322 | * |
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323 | * @return \Spatie\Html\Elements\Button |
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324 | */ |
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325 | public function reset($text = null) |
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329 | |||
330 | /** |
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331 | * @param string $number |
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332 | * @param string|null $text |
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333 | * |
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334 | * @return \Spatie\Html\Elements\A |
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335 | */ |
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336 | public function tel($number, $text = null) |
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340 | |||
341 | /** |
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342 | * @param string|null $name |
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343 | * @param string|null $value |
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344 | * |
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345 | * @return \Spatie\Html\Elements\Input |
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346 | */ |
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347 | public function text($name = null, $value = null) |
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351 | |||
352 | /** |
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353 | * @param string|null $name |
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354 | * |
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355 | * @return \Spatie\Html\Elements\File |
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356 | */ |
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357 | public function file($name = null) |
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363 | |||
364 | /** |
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365 | * @param string|null $name |
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366 | * @param string|null $value |
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367 | * |
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368 | * @return \Spatie\Html\Elements\Textarea |
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369 | */ |
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370 | public function textarea($name = null, $value = null) |
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377 | |||
378 | /** |
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379 | * @return \Spatie\Html\Elements\Input |
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380 | */ |
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381 | public function token() |
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385 | |||
386 | /** |
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387 | * @param \ArrayAccess|array $model |
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388 | * |
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389 | * @return $this |
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390 | */ |
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391 | public function model($model) |
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397 | |||
398 | /** |
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399 | * @param \ArrayAccess|array $model |
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400 | * @param string|null $method |
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401 | * @param string|null $action |
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402 | * |
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403 | * @return \Spatie\Html\Elements\Form |
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404 | */ |
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405 | public function modelForm($model, $method = 'POST', $action = null): Form |
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411 | |||
412 | /** |
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413 | * @return $this |
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414 | */ |
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415 | public function endModel() |
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421 | |||
422 | /** |
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423 | * @return \Illuminate\Contracts\Support\Htmlable |
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424 | */ |
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425 | public function closeModelForm(): Htmlable |
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431 | |||
432 | /** |
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433 | * @param string $name |
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434 | * @param mixed $value |
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435 | * |
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436 | * @return mixed |
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437 | */ |
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438 | protected function old($name, $value = null) |
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452 | |||
453 | /** |
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454 | * @param string $name |
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455 | * |
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456 | * @return string |
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457 | */ |
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458 | protected function fieldName($name) |
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462 | |||
463 | protected function ensureModelIsAvailable() |
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469 | } |
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470 |