Complex classes like ModelManager 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 ModelManager, and based on these observations, apply Extract Interface, too.
1 | <?php namespace Mascame\Artificer\Model; |
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10 | class ModelManager |
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11 | { |
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12 | |||
13 | /** |
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14 | * @var ModelSchema |
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15 | */ |
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16 | public $schema; |
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17 | |||
18 | /** |
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19 | * @var array |
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20 | */ |
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21 | public $models; |
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22 | |||
23 | /** |
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24 | * @var array |
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25 | */ |
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26 | public $columns; |
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27 | |||
28 | /** |
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29 | * @var \Illuminate\Database\Eloquent\Model |
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30 | */ |
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31 | public $model; |
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32 | |||
33 | /** |
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34 | * @var string |
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35 | */ |
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36 | public $class; |
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37 | |||
38 | /** |
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39 | * @var |
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40 | */ |
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41 | public $name; |
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42 | |||
43 | /** |
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44 | * @var string |
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45 | */ |
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46 | public $keyname; |
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47 | |||
48 | /** |
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49 | * @var |
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50 | */ |
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51 | public $table; |
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52 | |||
53 | /** |
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54 | * @var |
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55 | */ |
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56 | public $fillable; |
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57 | |||
58 | /** |
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59 | * @var array|mixed |
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60 | */ |
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61 | protected $options = []; |
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62 | protected $defaultOptions = null; |
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63 | |||
64 | /** |
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65 | * @var array|mixed |
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66 | */ |
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67 | public $relations = []; |
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68 | |||
69 | /** |
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70 | * @var |
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71 | */ |
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72 | public static $current = null; |
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73 | |||
74 | /** |
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75 | * @param ModelSchema $schema |
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76 | */ |
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77 | public function __construct(ModelSchema $schema) |
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88 | |||
89 | |||
90 | public function share() |
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96 | |||
97 | /** |
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98 | * @return array |
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99 | */ |
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100 | private function getModelsData() |
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120 | |||
121 | /** |
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122 | * @param $modelName |
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123 | * @return bool |
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124 | */ |
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125 | public function isHidden($modelName) |
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129 | |||
130 | /** |
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131 | * @return bool |
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132 | */ |
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133 | public function hasGuarded() |
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137 | |||
138 | /** |
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139 | * Look for admin model config, if there is nothing fallback to Model property |
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140 | * |
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141 | * @return array|mixed |
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142 | */ |
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143 | public function getGuarded() |
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147 | |||
148 | /** |
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149 | * Look for admin model config, if there is nothing fallback to Model property |
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150 | * |
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151 | * @return array|mixed |
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152 | */ |
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153 | public function getFillable() |
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163 | |||
164 | /** |
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165 | * @return bool |
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166 | */ |
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167 | public function hasFillable() |
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171 | |||
172 | /** |
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173 | * @return int|null|string |
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174 | */ |
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175 | private function getCurrentModelName() |
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189 | |||
190 | protected function prepareCurrentModel() |
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201 | |||
202 | /** |
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203 | * Fills all fields in config if they are not declared and applies default attributes |
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204 | * |
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205 | * @param $columns |
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206 | * @param null $model |
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207 | * @return mixed |
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208 | */ |
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209 | protected function addFieldOptions($columns, $model = null) { |
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224 | |||
225 | /** |
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226 | * @return array |
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227 | */ |
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228 | private function getCurrentModelData() |
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240 | |||
241 | /** |
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242 | * @param $model |
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243 | * @return bool |
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244 | */ |
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245 | protected function isCurrent($modelName) |
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253 | |||
254 | /** |
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255 | * @return ModelManager |
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256 | */ |
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257 | public static function getCurrent() |
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261 | |||
262 | /** |
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263 | * @param null $model |
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264 | * @return null |
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265 | */ |
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266 | public function getRouteName($model = null) |
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272 | |||
273 | /** |
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274 | * @param $modelName |
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275 | */ |
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276 | protected function setCurrent($modelName) |
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281 | |||
282 | /** |
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283 | * @param null $model |
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284 | * @return mixed |
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285 | */ |
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286 | public function getOptions($model = null) |
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297 | |||
298 | public function getDefaultOptions() |
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304 | |||
305 | /** |
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306 | * Take care! This are the options reflected in config files. |
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307 | * Processed guarded/fillable should used with their own getters. |
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308 | * |
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309 | * @param $key |
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310 | * @param null $model |
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311 | * @return mixed |
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312 | */ |
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313 | public function getOption($key, $default = null, $model = null) |
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320 | |||
321 | /** |
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322 | * @return array|mixed |
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323 | */ |
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324 | public function getRelations() |
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328 | |||
329 | } |
This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.
Both the
$myVar
assignment in line 1 and the$higher
assignment in line 2 are dead. The first because$myVar
is never used and the second because$higher
is always overwritten for every possible time line.