discourse/app/models/user_email.rb

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# frozen_string_literal: true
class UserEmail < ActiveRecord::Base
belongs_to :user
attr_accessor :skip_validate_email
attr_accessor :skip_validate_unique_email
before_validation :strip_downcase_email
before_validation :normalize_email
validates :email, presence: true
validates :email, email: true, if: :validate_email?
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validates :primary, uniqueness: { scope: [:user_id] }, if: [:user_id, :primary]
validate :user_id_not_changed, if: :primary
validate :unique_email, if: :validate_unique_email?
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scope :secondary, -> { where(primary: false) }
def normalize_email
self.normalized_email = if self.email.present?
username, domain = self.email.split('@', 2)
username = username.gsub('.', '').gsub(/\+.*/, '')
"#{username}@#{domain}"
end
end
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
def validate_unique_email?
return false if self.skip_validate_unique_email
will_save_change_to_email?
end
def unique_email
email_exists = if SiteSetting.normalize_emails?
self.class.where("lower(email) = ? OR lower(normalized_email) = ?", email, normalized_email).exists?
else
self.class.where("lower(email) = ?", email).exists?
end
self.errors.add(:email, :taken) if email_exists
end
def user_id_not_changed
if self.will_save_change_to_user_id? && self.persisted?
self.errors.add(:user_id, I18n.t(
'active_record.errors.model.user_email.attributes.user_id.reassigning_primary_email')
)
end
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
# normalized_email :string
#
# Indexes
#
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# index_user_emails_on_email (lower((email)::text)) UNIQUE
# index_user_emails_on_normalized_email (lower((normalized_email)::text))
# index_user_emails_on_user_id (user_id)
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# index_user_emails_on_user_id_and_primary (user_id,primary) UNIQUE WHERE "primary"
#