+ return static::where('system_name', '=', 'public')->first();
+ }
+
+ /**
+ * Check if the user is the default public user.
+ * @return bool
+ */
+ public function isDefault()
+ {
+ return $this->system_name === 'public';
+ }
+
+ /**
+ * The roles that belong to the user.
+ * @return BelongsToMany
+ */
+ public function roles()
+ {
+ if ($this->id === 0) {
+ return ;
+ }
+ return $this->belongsToMany(Role::class);
+ }
+
+ /**
+ * Check if the user has a role.
+ * @param $role
+ * @return mixed
+ */
+ public function hasRole($role)
+ {
+ return $this->roles->pluck('name')->contains($role);
+ }
+
+ /**
+ * Check if the user has a role.
+ * @param $role
+ * @return mixed
+ */
+ public function hasSystemRole($role)
+ {
+ return $this->roles->pluck('system_name')->contains($role);
+ }
+
+ /**
+ * Get all permissions belonging to a the current user.
+ * @param bool $cache
+ * @return \Illuminate\Database\Eloquent\Relations\HasManyThrough
+ */
+ public function permissions($cache = true)
+ {
+ if (isset($this->permissions) && $cache) {
+ return $this->permissions;
+ }
+ $this->load('roles.permissions');
+ $permissions = $this->roles->map(function ($role) {
+ return $role->permissions;
+ })->flatten()->unique();
+ $this->permissions = $permissions;
+ return $permissions;
+ }
+
+ /**
+ * Check if the user has a particular permission.
+ * @param $permissionName
+ * @return bool
+ */
+ public function can($permissionName)
+ {
+ if ($this->email === 'guest') {
+ return false;
+ }
+ return $this->permissions()->pluck('name')->contains($permissionName);
+ }
+
+ /**
+ * Attach a role to this user.
+ * @param Role $role
+ */
+ public function attachRole(Role $role)
+ {
+ $this->attachRoleId($role->id);
+ }
+
+ /**
+ * Attach a role id to this user.
+ * @param $id
+ */
+ public function attachRoleId($id)
+ {
+ $this->roles()->attach($id);
+ }
+
+ /**
+ * Get the social account associated with this user.
+ * @return \Illuminate\Database\Eloquent\Relations\HasMany
+ */
+ public function socialAccounts()
+ {
+ return $this->hasMany(SocialAccount::class);
+ }
+
+ /**
+ * Check if the user has a social account,
+ * If a driver is passed it checks for that single account type.
+ * @param bool|string $socialDriver
+ * @return bool
+ */
+ public function hasSocialAccount($socialDriver = false)
+ {
+ if ($socialDriver === false) {
+ return $this->socialAccounts()->count() > 0;
+ }
+
+ return $this->socialAccounts()->where('driver', '=', $socialDriver)->exists();