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class Friend < ApplicationRecord
validates :requesting_id, :requested_id, presence: true
validates :requesting_id, uniqueness: { scope: [:requested_id] }
validates :requested_id, uniqueness: { scope: [:requesting_id] }
validates :accepted, inclusion: { in: [true, false] }
belongs_to :requesting_user,
foreign_key: :requesting_id,
class_name: :User
belongs_to :requested_user,
foreign_key: :requested_id,
class_name: :User
def self.friendship(friend_params)
requester = friend_params.fetch(:requesting_id).to_i
requested = friend_params.fetch(:requested_id).to_i
friendship1 = Friend.where(requesting_id: requester, requested_id: requested)
friendship2 = Friend.where(requesting_id: requested, requested_id: requester)
return friendship1 if friendship1.length === 1
return friendship2 if friendship2.length === 1
return nil
end
end
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