Complex classes like ModelAdmin 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 ModelAdmin, and based on these observations, apply Extract Interface, too.
1 | <?php |
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12 | class ModelAdmin extends Admin implements ModelQueryable |
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13 | { |
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14 | use ModelQuerying; |
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15 | use ModelSaving; |
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16 | |||
17 | /** |
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18 | * Class of Model to Manage. |
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19 | * |
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20 | * @var string |
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21 | */ |
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22 | protected $managedModel; |
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23 | |||
24 | /** |
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25 | * Entiy Title . |
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26 | * |
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27 | * @var string |
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28 | */ |
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29 | protected $entityTitle; |
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30 | |||
31 | /** |
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32 | * Plural Entity Title. |
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33 | * |
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34 | * @var string |
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35 | */ |
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36 | protected $pluralEntityTitle; |
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37 | |||
38 | /** |
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39 | * Validation Rules for onCreate, onEdit actions. |
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40 | * |
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41 | * @var array |
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42 | */ |
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43 | protected $rules = []; |
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44 | |||
45 | /** |
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46 | * Columns for Model. |
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47 | * |
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48 | * Defines which fields to show in the listing tables output. |
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49 | * |
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50 | * @var array |
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51 | */ |
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52 | protected $columns = []; |
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53 | |||
54 | /** |
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55 | * Map Model Attributes to FieldTypes with |
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56 | * additional parameters which will be output |
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57 | * as fields when viewing, editting or adding |
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58 | * a new model entry. |
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59 | * |
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60 | * @var array |
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61 | */ |
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62 | protected $fields = []; |
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63 | |||
64 | /** |
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65 | * Columns for Model are Sortable. |
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66 | * |
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67 | * @var bool |
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68 | */ |
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69 | protected $sortable = true; |
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70 | |||
71 | /** |
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72 | * The Controller to be used by the Model Admin. |
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73 | * |
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74 | * This defaults to parent::getController() |
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75 | * if it has been left undefined. |
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76 | * |
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77 | * @var string |
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78 | */ |
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79 | protected $controller = '\LaravelFlare\Flare\Admin\Models\ModelAdminController'; |
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80 | |||
81 | /** |
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82 | * The Policy used for the Model Authorization logic. |
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83 | * |
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84 | * This class should implement the ModelAdminPoliceable which |
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85 | * includes authorization checks for the create, view, edit and delete actions. |
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86 | * |
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87 | * @var string |
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88 | */ |
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89 | protected $policy = '\LaravelFlare\Flare\Permissions\ModelAdminPolicy'; |
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90 | |||
91 | /** |
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92 | * The current model to be managed. |
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93 | * |
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94 | * @var Model |
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95 | */ |
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96 | public $model; |
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97 | |||
98 | /** |
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99 | * __construct. |
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100 | */ |
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101 | public function __construct() |
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107 | |||
108 | /** |
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109 | * Returns a Model Instance. |
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110 | * |
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111 | * @return Model |
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112 | */ |
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113 | public function model() |
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123 | |||
124 | /** |
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125 | * Returns a New Model Instance. |
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126 | * |
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127 | * @return Model |
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128 | */ |
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129 | public function newModel() |
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135 | |||
136 | /** |
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137 | * Returns the Managed Model Class. |
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138 | * |
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139 | * @return string |
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140 | */ |
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141 | public function getManagedModel() |
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149 | |||
150 | /** |
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151 | * Set the Managed Model Class. |
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152 | * |
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153 | * @param string $managedModel |
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154 | */ |
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155 | public function setManagedModel($managedModel = null) |
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159 | |||
160 | /** |
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161 | * Get the Entity Title. |
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162 | * |
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163 | * @return string |
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164 | */ |
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165 | public function getEntityTitle() |
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173 | |||
174 | /** |
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175 | * Set Entity Title. |
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176 | * |
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177 | * @param string $entityTitle |
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178 | */ |
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179 | public function setTitle($entityTitle = null) |
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183 | |||
184 | /** |
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185 | * Plural Entity Title |
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186 | * |
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187 | * @return string |
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188 | */ |
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189 | public function getPluralEntityTitle() |
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197 | |||
198 | /** |
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199 | * Set Plural Title. |
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200 | * |
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201 | * @param string $pluralEntityTitle |
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202 | */ |
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203 | public function setPluralTitle($pluralEntityTitle = null) |
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207 | |||
208 | |||
209 | /** |
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210 | * Returns the Route Paramets. |
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211 | * |
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212 | * @return array |
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213 | */ |
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214 | public function routeParameters() |
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220 | |||
221 | /** |
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222 | * Formats and returns the Columns. |
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223 | * |
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224 | * This is really gross, I'm removing it soon. |
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225 | * |
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226 | * @return |
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227 | */ |
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228 | public function getColumns() |
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269 | |||
270 | /** |
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271 | * Return the Validation Rules |
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272 | * |
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273 | * @return array |
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274 | */ |
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275 | public function getRules() |
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279 | |||
280 | /** |
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281 | * Return the Create Model Entry Validation Rules |
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282 | * |
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283 | * @return array |
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284 | */ |
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285 | public function getCreateRules() |
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289 | |||
290 | /** |
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291 | * Return the Update Model Entry Validation Rules |
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292 | * |
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293 | * @return array |
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294 | */ |
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295 | public function getUpdateRules() |
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299 | |||
300 | /** |
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301 | * Gets an Attribute by the provided key |
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302 | * on either the current model or a provided model instance. |
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303 | * |
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304 | * @param string $key |
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305 | * @param mixed $model |
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306 | * |
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307 | * @return mixed |
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308 | */ |
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309 | public function getAttribute($key, $model = false) |
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331 | |||
332 | /** |
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333 | * Determine if a get accessor exists for an attribute. |
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334 | * |
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335 | * @param string $key |
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336 | * |
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337 | * @return bool |
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338 | */ |
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339 | public function hasGetAccessor($key) |
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343 | |||
344 | /** |
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345 | * Determines if a key resolved a related Model. |
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346 | * |
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347 | * @param string $key |
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348 | * @param mixed $model |
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349 | * |
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350 | * @return bool |
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351 | */ |
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352 | public function hasRelatedKey($key, $model = false) |
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367 | |||
368 | /** |
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369 | * Resolves a relation based on the key provided, |
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370 | * either on the current model or a provided model instance. |
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371 | * |
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372 | * @param string $key |
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373 | * @param mixed $model |
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374 | * |
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375 | * @return mixed |
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376 | */ |
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377 | public function relatedKey($key, $model = false) |
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400 | |||
401 | /** |
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402 | * Set a given attribute on the model. |
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403 | * |
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404 | * @param string $key |
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405 | * @param mixed $value |
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406 | */ |
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407 | public function setAttribute($key, $value) |
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417 | |||
418 | /** |
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419 | * Determine if a set mutator exists for an attribute. |
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420 | * |
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421 | * @param string $key |
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422 | * |
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423 | * @return bool |
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424 | */ |
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425 | public function hasSetMutator($key) |
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429 | |||
430 | /** |
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431 | * Determine if a get mutator exists for an attribute. |
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432 | * |
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433 | * @param string $key |
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434 | * |
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435 | * @return bool |
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436 | */ |
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437 | public function hasGetMutator($key) |
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441 | |||
442 | /** |
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443 | * Returns an array of Attribute Fields ready for output. |
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444 | * |
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445 | * @return array |
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446 | */ |
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447 | public function outputFields() |
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451 | |||
452 | /** |
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453 | * Gets the Managed Model Mapping. |
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454 | * |
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455 | * @return array |
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456 | */ |
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457 | public function getFields() |
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463 | |||
464 | /** |
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465 | * Sets the Managed Model Mapping. |
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466 | * |
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467 | * @param array $fields |
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468 | */ |
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469 | public function setFields($fields = []) |
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475 | |||
476 | /** |
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477 | * Format the provided Attribute Fields into a more usable format. |
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478 | */ |
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479 | protected function formatFields() |
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489 | |||
490 | /** |
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491 | * Determine if the Model Admin is sortable in it's list view. |
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492 | * |
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493 | * @return bool |
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494 | */ |
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495 | public function isSortable() |
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499 | |||
500 | /** |
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501 | * Determine if the Model Admin is sortable by a defined key / column. |
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502 | * |
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503 | * @param string $key |
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504 | * |
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505 | * @return bool |
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506 | */ |
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507 | public function isSortableBy($key) |
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526 | |||
527 | /** |
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528 | * Determine if the Model Admin has Viewing Capabilities. |
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529 | * |
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530 | * @return bool |
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531 | */ |
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532 | public function hasViewing() |
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536 | |||
537 | /** |
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538 | * Determine if the Model Admin has Creating Capabilities. |
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539 | * |
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540 | * @return bool |
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541 | */ |
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542 | public function hasCreating() |
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546 | |||
547 | /** |
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548 | * Determine if the Model Admin has Cloning Capabilities. |
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549 | * |
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550 | * @return bool |
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551 | */ |
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552 | public function hasCloning() |
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556 | |||
557 | /** |
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558 | * Determine if the Model Admin has Editting Capabilities. |
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559 | * |
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560 | * @return bool |
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561 | */ |
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562 | public function hasEditting() |
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566 | |||
567 | /** |
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568 | * Determine if the Model Admin has Deleting Capabilities. |
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569 | * |
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570 | * @return bool |
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571 | */ |
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572 | public function hasDeleting() |
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576 | |||
577 | /** |
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578 | * Determine if the Managed Model is using the SoftDeletes Trait. |
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579 | * |
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580 | * This is guarded by hasDeleting, since we shouldn't allow SoftDeleting |
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581 | * without the deleting trait (even though it isn't really required). |
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582 | * |
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583 | * @return bool |
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584 | */ |
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585 | public function hasSoftDeleting() |
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599 | |||
600 | /** |
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601 | * Determine if the Model Admin has Validating Capabilities. |
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602 | * |
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603 | * @return bool |
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604 | */ |
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605 | public function hasValidating() |
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609 | |||
610 | /** |
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611 | * Determine if the Managed Model has a Trait and Contract. |
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612 | * |
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613 | * @return bool |
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614 | */ |
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615 | public function hasTraitAndContract($trait = null, $contract = null) |
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619 | |||
620 | /** |
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621 | * Returns whether the current ModelAdmin has a given trait. |
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622 | * |
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623 | * @param string $trait |
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624 | * |
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625 | * @return bool |
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626 | */ |
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627 | public function hasTrait($trait = null) |
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635 | |||
636 | /** |
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637 | * Returns whether the current ModelAdmin has a given contract. |
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638 | * |
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639 | * @param string $contract |
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640 | * |
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641 | * @return bool |
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642 | */ |
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643 | public function hasContract($contract = null) |
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651 | } |
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652 |
This check marks access to variables or properties that have not been declared yet. While PHP has no explicit notion of declaring a variable, accessing it before a value is assigned to it is most likely a bug.