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<?php |
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namespace Spatie\Permission\Traits; |
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use Spatie\Permission\Guard; |
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use Illuminate\Support\Collection; |
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use Illuminate\Database\Eloquent\Builder; |
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use Spatie\Permission\PermissionRegistrar; |
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use Spatie\Permission\Contracts\Permission; |
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use Spatie\Permission\Exceptions\GuardDoesNotMatch; |
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use Illuminate\Database\Eloquent\Relations\MorphToMany; |
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trait HasPermissions |
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{ |
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public static function bootHasPermissions() |
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{ |
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static::deleting(function ($model) { |
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if (method_exists($model, 'isForceDeleting') && ! $model->isForceDeleting()) { |
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return; |
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} |
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$model->permissions()->detach(); |
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}); |
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} |
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/** |
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* A model may have multiple direct permissions. |
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*/ |
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public function permissions(): MorphToMany |
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{ |
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return $this->morphToMany( |
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config('permission.models.permission'), |
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'model', |
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config('permission.table_names.model_has_permissions'), |
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'model_id', |
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'permission_id' |
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); |
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} |
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/** |
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* Scope the model query to certain permissions only. |
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* |
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* @param \Illuminate\Database\Eloquent\Builder $query |
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* @param string|array|\Spatie\Permission\Contracts\Permission|\Illuminate\Support\Collection $permissions |
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* |
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* @return \Illuminate\Database\Eloquent\Builder |
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*/ |
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public function scopePermission(Builder $query, $permissions): Builder |
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{ |
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$permissions = $this->convertToPermissionModels($permissions); |
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$rolesWithPermissions = array_unique(array_reduce($permissions, function ($result, $permission) { |
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return array_merge($result, $permission->roles->all()); |
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}, [])); |
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return $query->where(function ($query) use ($permissions, $rolesWithPermissions) { |
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$query->whereHas('permissions', function ($query) use ($permissions) { |
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$query->where(function ($query) use ($permissions) { |
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foreach ($permissions as $permission) { |
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$query->orWhere(config('permission.table_names.permissions').'.id', $permission->id); |
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} |
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}); |
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}); |
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if (count($rolesWithPermissions) > 0) { |
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$query->orWhereHas('roles', function ($query) use ($rolesWithPermissions) { |
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$query->where(function ($query) use ($rolesWithPermissions) { |
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foreach ($rolesWithPermissions as $role) { |
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$query->orWhere(config('permission.table_names.roles').'.id', $role->id); |
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} |
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}); |
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}); |
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} |
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}); |
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} |
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/** |
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* @param string|array|\Spatie\Permission\Contracts\Permission|\Illuminate\Support\Collection $permissions |
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* |
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* @return array |
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*/ |
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protected function convertToPermissionModels($permissions): array |
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{ |
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if ($permissions instanceof Collection) { |
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$permissions = $permissions->all(); |
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} |
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$permissions = array_wrap($permissions); |
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return array_map(function ($permission) { |
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if ($permission instanceof Permission) { |
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return $permission; |
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} |
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return app(Permission::class)->findByName($permission, $this->getDefaultGuardName()); |
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}, $permissions); |
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} |
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/** |
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* Determine if the model may perform the given permission. |
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* |
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* @param string|\Spatie\Permission\Contracts\Permission $permission |
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* @param string|null $guardName |
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* |
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* @return bool |
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*/ |
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public function hasPermissionTo($permission, $guardName = null): bool |
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{ |
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View Code Duplication |
if (is_string($permission)) { |
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$permission = app(Permission::class)->findByName( |
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$permission, |
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$guardName ?? $this->getDefaultGuardName() |
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); |
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} |
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if (is_int($permission)) { |
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$permission = app(Permission::class)->findById($permission, $this->getDefaultGuardName()); |
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} |
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return $this->hasDirectPermission($permission) || $this->hasPermissionViaRole($permission); |
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} |
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/** |
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* Determine if the model has any of the given permissions. |
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* |
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* @param array ...$permissions |
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* |
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* @return bool |
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*/ |
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public function hasAnyPermission(...$permissions): bool |
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{ |
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if (is_array($permissions[0])) { |
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$permissions = $permissions[0]; |
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} |
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foreach ($permissions as $permission) { |
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if ($this->hasPermissionTo($permission)) { |
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return true; |
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} |
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} |
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return false; |
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} |
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/** |
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* Determine if the model has, via roles, the given permission. |
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* |
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* @param \Spatie\Permission\Contracts\Permission $permission |
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* |
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* @return bool |
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*/ |
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protected function hasPermissionViaRole(Permission $permission): bool |
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{ |
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return $this->hasRole($permission->roles); |
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} |
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/** |
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* Determine if the model has the given permission. |
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* |
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* @param string|\Spatie\Permission\Contracts\Permission $permission |
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* |
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* @return bool |
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*/ |
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public function hasDirectPermission($permission): bool |
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{ |
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View Code Duplication |
if (is_string($permission)) { |
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$permission = app(Permission::class)->findByName($permission, $this->getDefaultGuardName()); |
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if (! $permission) { |
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return false; |
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} |
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} |
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if (is_int($permission)) { |
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$permission = app(Permission::class)->findById($permission, $this->getDefaultGuardName()); |
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if (! $permission) { |
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return false; |
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} |
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} |
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return $this->permissions->contains('id', $permission->id); |
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} |
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/** |
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* Return all the permissions the model has via roles. |
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*/ |
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public function getPermissionsViaRoles(): Collection |
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{ |
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return $this->load('roles', 'roles.permissions') |
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->roles->flatMap(function ($role) { |
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return $role->permissions; |
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})->sort()->values(); |
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} |
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/** |
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* Return all the permissions the model has, both directly and via roles. |
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*/ |
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public function getAllPermissions(): Collection |
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{ |
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return $this->permissions |
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->merge($this->getPermissionsViaRoles()) |
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->sort() |
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->values(); |
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} |
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/** |
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* Grant the given permission(s) to a role. |
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* |
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* @param string|array|\Spatie\Permission\Contracts\Permission|\Illuminate\Support\Collection $permissions |
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* |
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* @return $this |
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*/ |
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View Code Duplication |
public function givePermissionTo(...$permissions) |
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{ |
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$permissions = collect($permissions) |
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->flatten() |
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->map(function ($permission) { |
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return $this->getStoredPermission($permission); |
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}) |
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->each(function ($permission) { |
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$this->ensureModelSharesGuard($permission); |
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}) |
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->all(); |
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$this->permissions()->saveMany($permissions); |
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$this->forgetCachedPermissions(); |
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return $this; |
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} |
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/** |
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* Remove all current permissions and set the given ones. |
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* |
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* @param string|array|\Spatie\Permission\Contracts\Permission|\Illuminate\Support\Collection $permissions |
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* |
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* @return $this |
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*/ |
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public function syncPermissions(...$permissions) |
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{ |
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$this->permissions()->detach(); |
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return $this->givePermissionTo($permissions); |
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} |
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/** |
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* Revoke the given permission. |
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* |
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* @param \Spatie\Permission\Contracts\Permission|\Spatie\Permission\Contracts\Permission[]|string|string[] $permission |
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* |
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* @return $this |
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*/ |
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public function revokePermissionTo($permission) |
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{ |
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$this->permissions()->detach($this->getStoredPermission($permission)); |
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$this->forgetCachedPermissions(); |
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return $this; |
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} |
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/** |
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* @param string|array|\Spatie\Permission\Contracts\Permission|\Illuminate\Support\Collection $permissions |
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* |
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* @return \Spatie\Permission\Contracts\Permission|\Spatie\Permission\Contracts\Permission[]|\Illuminate\Support\Collection |
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*/ |
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protected function getStoredPermission($permissions) |
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{ |
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if (is_numeric($permissions)) { |
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return app(Permission::class)->findById($permissions, $this->getDefaultGuardName()); |
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} |
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if (is_string($permissions)) { |
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return app(Permission::class)->findByName($permissions, $this->getDefaultGuardName()); |
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} |
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if (is_array($permissions)) { |
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return app(Permission::class) |
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->whereIn('name', $permissions) |
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->whereIn('guard_name', $this->getGuardNames()) |
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->get(); |
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} |
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return $permissions; |
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} |
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/** |
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* @param \Spatie\Permission\Contracts\Permission|\Spatie\Permission\Contracts\Role $roleOrPermission |
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* |
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* @throws \Spatie\Permission\Exceptions\GuardDoesNotMatch |
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*/ |
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protected function ensureModelSharesGuard($roleOrPermission) |
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{ |
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if (! $this->getGuardNames()->contains($roleOrPermission->guard_name)) { |
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throw GuardDoesNotMatch::create($roleOrPermission->guard_name, $this->getGuardNames()); |
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} |
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} |
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protected function getGuardNames(): Collection |
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{ |
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return Guard::getNames($this); |
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} |
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protected function getDefaultGuardName(): string |
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{ |
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return Guard::getDefaultName($this); |
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} |
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/** |
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* Forget the cached permissions. |
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*/ |
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public function forgetCachedPermissions() |
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{ |
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app(PermissionRegistrar::class)->forgetCachedPermissions(); |
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} |
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} |
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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.