discourse/app/models/user_email.rb

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require_dependency 'email_validator'
class UserEmail < ActiveRecord::Base
belongs_to :user
attr_accessor :skip_validate_email
before_validation :strip_downcase_email
validates :email, presence: true, uniqueness: true
validates :email, email: true, format: { with: EmailValidator.email_regex },
if: :validate_email?
validates :primary, uniqueness: { scope: [:user_id] }
private
def strip_downcase_email
if self.email
self.email = self.email.strip
self.email = self.email.downcase
end
end
def validate_email?
return false if self.skip_validate_email
email_changed?
end
end
# == Schema Information
#
# Table name: user_emails
#
# id :integer not null, primary key
# user_id :integer not null
# email :string(513) not null
# primary :boolean default(FALSE), not null
# created_at :datetime not null
# updated_at :datetime not null
#
# Indexes
#
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# index_user_emails_on_email (lower((email)::text)) UNIQUE
# index_user_emails_on_user_id (user_id)
# index_user_emails_on_user_id_and_primary (user_id,primary) UNIQUE
#