Initial commit of foodsoft 2

app/models/invite.rb

@@ -0,0 +1,46 @@
+require 'digest/sha1'
+
+# Invites are created by foodcoop users to invite a new user into the foodcoop and their order group.
+# 
+# Attributes:
+# * token - the authentication token for this invite
+# * group - the group the new user is to be made a member of
+# * user - the inviting user
+# * expires_at - the time this invite expires
+# * email - the recipient's email address
+class Invite < ActiveRecord::Base
+  belongs_to :user
+  belongs_to :group
+
+  validates_format_of :email, :with => /^([^@\s]+)@((?:[-a-z0-9]+\.)+[a-z]{2,})$/i, :message => 'ist keine gültige Email-Adresse'
+  validates_presence_of :user
+  validates_presence_of :group
+  validates_presence_of :token
+  validates_presence_of :expires_at
+  
+  attr_accessible :email, :user, :group
+  
+  # messages
+  ERR_EMAIL_IN_USE = 'ist bereits in Verwendung'
+  
+ protected
+  
+  # Before validation, set token and expires_at.
+  def before_validation
+    self.token = Digest::SHA1.hexdigest(Time.now.to_s + rand(100).to_s)
+    self.expires_at = Time.now.advance(:days => 2)
+  end
+
+  # Sends an email to the invited user.
+  def after_create
+    Mailer.deliver_invite(self)
+  end
+
+ private
+
+  # Custom validation: check that email does not already belong to a registered user.
+  def validate_on_create
+    errors.add(:email, ERR_EMAIL_IN_USE) unless User.find_by_email(self.email).nil?
+  end
+
+end