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A handy Rails model for storing emails with a little logic to let a User have multiple email addresses but a single primary address.
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| class Email < ActiveRecord::Base | |
| # Nope, it's not RFC compliant. F*** that regex. | |
| # http://www.ex-parrot.com/~pdw/Mail-RFC822-Address.html | |
| EmailRegex = /\A([^@\s]+)@((?:[-a-z0-9]+\.)+[a-z]{2,})\z/i.freeze | |
| before_validation :strip_spaces | |
| # Public: The email address. | |
| # column :address | |
| # Returns a String. | |
| validates :address, | |
| :presence => true, | |
| :length => { :in => 3..254 }, | |
| :format => { :with => EmailRegex, :message => "does not look like an email address" }, | |
| :uniqueness => { :case_sensitive => false, :message => "is taken" } | |
| # Public: User email address belongs to. | |
| # column :user_id | |
| # Returns a User. | |
| validates :user_id, :presence => true | |
| belongs_to :user | |
| # Public: Email address validation as a service. | |
| # | |
| # Returns a boolean | |
| def self.valid_email_address?(email) | |
| EmailRegex.match(email) | |
| end | |
| # Public: Is this a primary email address? | |
| # column :primary | |
| # Returns a TrueClass or FalseClass. | |
| # TODO: Validate that only one Email#address per User is the primary. | |
| # Public: Set this email as the primary email. Sets primary to false for any | |
| # other emails for this User. | |
| def set_primary | |
| self.class.transaction do | |
| self.class.where(:user_id => user_id, :primary => true).update_all(:primary => false) | |
| self.primary = true | |
| save | |
| end | |
| end | |
| # Internal: Strip all space from the email. | |
| def strip_spaces | |
| self.address = address.strip | |
| end | |
| end |
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