| 1 | <?php |
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| 8 | trait HasRoles |
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| 9 | { |
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| 10 | /** |
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| 11 | * A user may have multiple roles. |
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| 12 | * |
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| 13 | * @return \Illuminate\Database\Eloquent\Relations\BelongsToMany |
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| 14 | */ |
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| 15 | public function roles() |
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| 19 | |||
| 20 | /** |
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| 21 | * Assign the given role to the user. |
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| 22 | * |
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| 23 | * @param string $role |
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| 24 | * |
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| 25 | * @return mixed |
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| 26 | * @throws \Exception |
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| 27 | */ |
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| 28 | public function assignRole($role) |
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| 29 | { |
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| 30 | if (Role::count() === 0) { |
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| 31 | throw new \Exception('No roles have been created.'); |
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| 32 | } |
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| 33 | |||
| 34 | return $this->roles()->save( |
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| 35 | Role::whereName($role)->firstOrFail() |
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| 36 | ); |
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| 37 | } |
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| 38 | |||
| 39 | /** |
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| 40 | * Determine if the user has the given role. |
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| 41 | * |
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| 42 | * @param mixed $role |
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| 43 | * @return bool |
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| 44 | */ |
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| 45 | public function hasRole($role) |
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| 53 | |||
| 54 | /** |
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| 55 | * Determine if the user may perform the given permission. |
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| 56 | * |
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| 57 | * @param Permission $permission |
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| 58 | * @return bool |
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| 59 | */ |
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| 60 | public function hasPermission(Permission $permission) |
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| 64 | } |
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| 65 |
In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: