metamaps--metamaps/app/models/user.rb

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require 'open-uri'
class User < ActiveRecord::Base
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has_many :topics
has_many :synapses
has_many :maps
has_many :mappings
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before_create :generate_code
devise :database_authenticatable, :recoverable, :rememberable, :trackable, :registerable
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attr_accessible :name, :email, :image, :password, :password_confirmation, :code, :joinedwithcode, :remember_me
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serialize :settings, UserPreference
validates :password, :presence => true,
:length => { :within => 8..40 },
:on => :create
validates :password, :length => { :within => 8..40 },
:allow_blank => true,
:on => :update
validates_confirmation_of :password
validates_presence_of :name # done by devise
validates_presence_of :email # done by devise
validates_uniqueness_of :name # done by devise
validates_uniqueness_of :email # done by devise
validates :joinedwithcode, :presence => true, :inclusion => { :in => $codes, :message => "%{value} is not valid" }, :on => :create
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# This method associates the attribute ":image" with a file attachment
has_attached_file :image, :styles => {
:square => ['84x84#', :png]
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},
:default_url => "/assets/user.png"
# Validate the attached image is image/jpg, image/png, etc
validates_attachment_content_type :image, :content_type => /\Aimage\/.*\Z/
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def as_json(options={})
{ :id => self.id,
:name => self.name,
:image => self.image.url(:square)
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}
end
def generate_code
#generate a random 8 letter/digit code that they can use to invite people
self.code = rand(36**8).to_s(36)
$codes.push(self.code)
self.generation = self.get_generation
end
def get_generation
if self.joinedwithcode == self.code
# if your joinedwithcode equals your code you must be GEN 0
gen = 0
elsif self.generation
# if your generation has already been calculated then just return that value
gen = self.generation
else
# if your generation hasn't been calculated, base it off the
# generation of the person whose code you joined with + 1
gen = User.find_by_code(self.joinedwithcode).get_generation + 1
end
end
def settings
# make sure we always return a UserPreference instance
if read_attribute(:settings).nil?
write_attribute :settings, UserPreference.new
read_attribute :settings
else
read_attribute :settings
end
end
def settings=(val)
write_attribute :settings, val
end
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end