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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24 | class Html |
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25 | { |
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26 | use Macroable; |
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27 | |||
28 | /** @var \Illuminate\Http\Request */ |
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29 | protected $request; |
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30 | |||
31 | /** @var \ArrayAccess|array */ |
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32 | protected $model; |
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33 | |||
34 | public function __construct(Request $request) |
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38 | |||
39 | /** |
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40 | * @param string|null $href |
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41 | * @param string|null $text |
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42 | * |
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43 | * @return \Spatie\Html\Elements\A |
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44 | */ |
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45 | public function a($href = null, $contents = null) |
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51 | |||
52 | /** |
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53 | * @param string|null $type |
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54 | * @param string|null $text |
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55 | * |
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56 | * @return \Spatie\Html\Elements\Button |
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57 | */ |
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58 | public function button($contents = null, $type = null) |
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64 | |||
65 | /** |
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66 | * @param \Illuminate\Support\Collection|iterable|string $classes |
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67 | * |
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68 | * @return \Illuminate\Contracts\Support\Htmlable |
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69 | */ |
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70 | public function class($classes): Htmlable |
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83 | |||
84 | /** |
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85 | * @param string|null $name |
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86 | * @param bool $checked |
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87 | * @param string|null $value |
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88 | * |
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89 | * @return \Spatie\Html\Elements\Input |
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90 | */ |
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91 | public function checkbox($name = null, $checked = false, $value = '1') |
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96 | |||
97 | /** |
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98 | * @param \Spatie\Html\HtmlElement|string|null $contents |
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99 | * |
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100 | * @return \Spatie\Html\Elements\Div |
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101 | */ |
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102 | public function div($contents = null) |
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106 | |||
107 | /** |
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108 | * @param string|null $name |
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109 | * @param string|null $value |
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110 | * |
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111 | * @return \Spatie\Html\Elements\Input |
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112 | */ |
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113 | public function email($name = '', $value = '') |
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117 | |||
118 | /** |
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119 | * @param string $tag |
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120 | * |
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121 | * @return \Spatie\Html\Elements\Element |
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122 | */ |
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123 | public function element($tag) |
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127 | |||
128 | /** |
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129 | * @param string|null $type |
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130 | * @param string|null $name |
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131 | * @param string|null $value |
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132 | * |
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133 | * @return \Spatie\Html\Elements\Input |
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134 | */ |
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135 | public function input($type = null, $name = null, $value = null) |
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143 | |||
144 | /** |
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145 | * @param \Spatie\Html\HtmlElement|string|null $legend |
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146 | * |
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147 | * @return \Spatie\Html\Elements\Fieldset |
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148 | */ |
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149 | public function fieldset($legend = null) |
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155 | |||
156 | /** |
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157 | * @param string $method |
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158 | * @param string|null $action |
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159 | * |
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160 | * @return \Spatie\Html\Elements\Form |
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161 | */ |
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162 | public function form($method = 'POST', $action = null) |
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182 | |||
183 | /** |
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184 | * @param string|null $name |
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185 | * @param string|null $value |
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186 | * |
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187 | * @return \Spatie\Html\Elements\Input |
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188 | */ |
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189 | public function hidden($name = null, $value = null) |
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193 | |||
194 | /** |
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195 | * @param \Spatie\Html\HtmlElement|iterable|string|null $contents |
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196 | * @param string|null $for |
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197 | * |
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198 | * @return \Spatie\Html\Elements\Label |
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199 | */ |
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200 | public function label($contents = null, $for = null) |
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206 | |||
207 | /** |
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208 | * @param \Spatie\Html\HtmlElement|string|null $contents |
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209 | * |
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210 | * @return \Spatie\Html\Elements\Legend |
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211 | */ |
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212 | public function legend($contents = null) |
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216 | |||
217 | /** |
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218 | * @param string $email |
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219 | * @param string|null $text |
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220 | * |
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221 | * @return \Spatie\Html\Elements\A |
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222 | */ |
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223 | public function mailto($email, $text = null) |
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227 | |||
228 | /** |
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229 | * @param string|null $name |
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230 | * @param iterable $options |
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231 | * @param string|iterable|null $value |
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232 | * |
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233 | * @return \Spatie\Html\Elements\Select |
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234 | */ |
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235 | View Code Duplication | public function multiselect($name = null, $options = [], $value = null) |
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244 | |||
245 | /** |
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246 | * @param string|null $text |
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247 | * @param string|null $value |
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248 | * @param bool $selected |
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249 | * |
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250 | * @return \Spatie\Html\Elements\Option |
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251 | */ |
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252 | public function option($text = null, $value = null, $selected = false) |
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259 | |||
260 | /** |
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261 | * @param string|null $value |
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262 | * |
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263 | * @return \Spatie\Html\Elements\Input |
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264 | */ |
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265 | public function password($name = null) |
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269 | |||
270 | /** |
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271 | * @param string|null $name |
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272 | * @param bool $checked |
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273 | * @param string|null $value |
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274 | * |
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275 | * @return \Spatie\Html\Elements\Input |
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276 | */ |
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277 | public function radio($name = null, $checked = false, $value = null) |
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282 | |||
283 | /** |
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284 | * @param string|null $name |
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285 | * @param iterable $options |
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286 | * @param string|iterable|null $value |
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287 | * |
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288 | * @return \Spatie\Html\Elements\Select |
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289 | */ |
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290 | View Code Duplication | public function select($name = null, $options = [], $value = null) |
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298 | |||
299 | /** |
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300 | * @param \Spatie\Html\HtmlElement|string|null $contents |
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301 | * |
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302 | * @return \Spatie\Html\Elements\Span |
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303 | */ |
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304 | public function span($contents = null) |
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308 | |||
309 | /** |
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310 | * @param string|null $test |
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311 | * |
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312 | * @return \Spatie\Html\Elements\Button |
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313 | */ |
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314 | public function submit($text = null) |
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318 | |||
319 | /** |
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320 | * @param string $number |
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321 | * @param string|null $text |
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322 | * |
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323 | * @return \Spatie\Html\Elements\A |
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324 | */ |
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325 | public function tel($number, $text = null) |
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329 | |||
330 | /** |
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331 | * @param string|null $name |
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332 | * @param string|null $value |
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333 | * |
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334 | * @return \Spatie\Html\Elements\Input |
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335 | */ |
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336 | public function text($name = null, $value = null) |
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340 | |||
341 | /** |
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342 | * @param string|null $name |
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343 | * @param string|null $value |
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344 | * |
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345 | * @return \Spatie\Html\Elements\Textarea |
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346 | */ |
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347 | public function textarea($name = null, $value = null) |
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354 | |||
355 | /** |
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356 | * @return \Spatie\Html\Elements\Input |
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357 | */ |
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358 | public function token() |
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362 | |||
363 | /** |
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364 | * @param \ArrayAccess|array $model |
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365 | * |
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366 | * @return $this |
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367 | */ |
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368 | public function model($model) |
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374 | |||
375 | /** |
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376 | * @param \ArrayAccess|array $model |
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377 | * @param string|null $method |
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378 | * @param string|null $action |
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379 | * |
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380 | * @return \Spatie\Html\Elements\Form |
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381 | */ |
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382 | public function modelForm($model, $method = 'POST', $action = null): Form |
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388 | |||
389 | /** |
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390 | * @return $this |
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391 | */ |
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392 | public function endModel() |
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398 | |||
399 | /** |
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400 | * @return \Illuminate\Contracts\Support\Htmlable |
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401 | */ |
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402 | public function closeModelForm(): Htmlable |
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408 | |||
409 | /** |
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410 | * @param string $name |
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411 | * @param mixed $value |
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412 | * |
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413 | * @return mixed |
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414 | */ |
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415 | protected function old($name, $value = null) |
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429 | |||
430 | /** |
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431 | * @param string $name |
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432 | * |
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433 | * @return string |
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434 | */ |
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435 | protected function fieldName($name) |
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439 | |||
440 | protected function ensureModelIsAvailable() |
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446 | } |
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447 |