Polymorphic Associations for Multiple User Roles in Rails

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I'm a designer/HTML+CSS dev learning Rails, and I'm having trouble with multiple user roles. My main models are as follows:

Studio
has_many :locations, dependent: :destroy
has_many :events, through: :locations
has_many :teachers, through: :events

Location 
belongs_to :studio, :class_name => Studio, :foreign_key => "studio_id"
has_many :events
has_many :teachers, through: :events

Event 
belongs_to :location, :class_name => Location, :foreign_key => "location_id"
belongs_to :studio
has_many :teachers

Teacher 
belongs_to :event, :class_name => Event, :foreign_key => "event_id"
belongs_to :location
belongs_to :studio
has_one :user, :as => :roleable
accepts_nested_attributes_for :user

User
belongs_to :roleable, :polymorphic => true

The Teacher/User relationship is the tricky bit; I'm not sure if it should be reversed.

Users have basic profile info, Teachers have many details. All users can follow teachers, but teachers can also invite new teachers, and list other teachers as influences. I had this set up as

Teacher
has_many :guests, class_name: "Teacher", foreign_key: "host_id"
belongs_to :host, class_name: "Teacher"    
has_many :influences, class_name: "Teacher", foreign_key: "student_id"
belongs_to :student, class_name: "Teacher"

User
has_many :favorites, class_name: "User", foreign_key: "fan_id"
belongs_to :fan, class_name: "User"

Does this look right, or should I say that User has_one :teacher ? The latter seems more correct, but it made my views really difficult. Thanks in advance!

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