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:
1 | <?php |
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10 | trait HasRoles |
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11 | { |
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12 | use HasPermissions; |
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13 | |||
14 | public static function bootHasRoles() |
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15 | { |
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16 | static::deleting(function ($model) { |
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17 | if (method_exists($model, 'isForceDeleting') && ! $model->isForceDeleting()) { |
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18 | return; |
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19 | } |
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20 | |||
21 | $model->roles()->detach(); |
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22 | }); |
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23 | } |
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24 | |||
25 | /** |
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26 | * A model may have multiple roles. |
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27 | */ |
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28 | public function roles(): MorphToMany |
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29 | { |
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30 | return $this->morphToMany( |
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31 | config('permission.models.role'), |
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32 | 'model', |
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33 | config('permission.table_names.model_has_roles'), |
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34 | 'model_id', |
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35 | 'role_id' |
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36 | ); |
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37 | } |
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38 | |||
39 | /** |
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40 | * Scope the model query to certain roles only. |
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41 | * |
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42 | * @param \Illuminate\Database\Eloquent\Builder $query |
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43 | * @param string|array|\Spatie\Permission\Contracts\Role|\Illuminate\Support\Collection $roles |
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44 | * |
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45 | * @return \Illuminate\Database\Eloquent\Builder |
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46 | */ |
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47 | public function scopeRole(Builder $query, $roles): Builder |
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73 | |||
74 | /** |
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75 | * Assign the given role to the model. |
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76 | * |
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77 | * @param array|string|\Spatie\Permission\Contracts\Role ...$roles |
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78 | * |
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79 | * @return $this |
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80 | */ |
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81 | View Code Duplication | public function assignRole(...$roles) |
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99 | |||
100 | /** |
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101 | * Revoke the given role from the model. |
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102 | * |
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103 | * @param string|\Spatie\Permission\Contracts\Role $role |
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104 | */ |
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105 | public function removeRole($role) |
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109 | |||
110 | /** |
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111 | * Remove all current roles and set the given ones. |
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112 | * |
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113 | * @param array|\Spatie\Permission\Contracts\Role|string ...$roles |
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114 | * |
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115 | * @return $this |
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116 | */ |
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117 | public function syncRoles(...$roles) |
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123 | |||
124 | /** |
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125 | * Determine if the model has (one of) the given role(s). |
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126 | * |
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127 | * @param string|array|\Spatie\Permission\Contracts\Role|\Illuminate\Support\Collection $roles |
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128 | * |
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129 | * @return bool |
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130 | */ |
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131 | public function hasRole($roles): bool |
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157 | |||
158 | /** |
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159 | * Determine if the model has any of the given role(s). |
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160 | * |
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161 | * @param string|array|\Spatie\Permission\Contracts\Role|\Illuminate\Support\Collection $roles |
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162 | * |
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163 | * @return bool |
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164 | */ |
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165 | public function hasAnyRole($roles): bool |
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169 | |||
170 | /** |
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171 | * Determine if the model has all of the given role(s). |
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172 | * |
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173 | * @param string|\Spatie\Permission\Contracts\Role|\Illuminate\Support\Collection $roles |
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174 | * |
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175 | * @return bool |
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176 | */ |
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177 | public function hasAllRoles($roles): bool |
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197 | |||
198 | /** |
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199 | * Return all permissions directly coupled to the model. |
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200 | */ |
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201 | public function getDirectPermissions(): Collection |
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205 | |||
206 | public function getRoleNames(): Collection |
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210 | |||
211 | protected function getStoredRole($role): Role |
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223 | |||
224 | protected function convertPipeToArray(string $pipeString) |
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245 | } |
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246 |
This check looks for methods that are used by a trait but not required by it.
To illustrate, let’s look at the following code example
The trait
Idable
provides a methodequalsId
that in turn relies on the methodgetId()
. If this method does not exist on a class mixing in this trait, the method will fail.Adding the
getId()
as an abstract method to the trait will make sure it is available.