Attr_accessor :password

attr_accessor :password
dis is small bit of code i have seen in a tutorial .

in that example there is no field called password in the database, so
how can rails understand its the password field of my database. in my
database i have given password field as hashed_password

i got an explanation form the tutorial as given below
" The attr_accessor statement specifies the attribute password. You
may have noticed that
this doesn’t actually exist as a field in the database migration. This
declares that password is an
attribute of the model even though it doesn’t exist as a database field.
The model will be able to
use the data from this field to create the hashed_password field. You
will notice that this is done
by the before_save filter. This will simply set the hashed_password
field to be a hash of the clear
password which, as stated in our specification, we can compare to the
stored hashed_password
value to authenticate a user’s login credentials.
"

but i ddn understand clearly… can any explain in better way!

On Wed, Oct 14, 2009 at 2:34 AM, Ralu rm
[email protected]wrote:

may have noticed that
value to authenticate a user’s login credentials.
"

but i ddn understand clearly… can any explain in better way!

Where can one find this example?

-Conrad

Conrad T. wrote:

On Wed, Oct 14, 2009 at 2:34 AM, Ralu rm
[email protected]wrote:

may have noticed that
value to authenticate a user’s login credentials.
"

but i ddn understand clearly… can any explain in better way!

Where can one find this example?

-Conrad

i got dat from tutorial . for me the expalnation was not dat gud
so can any one help me with dat

On Wed, Oct 14, 2009 at 3:21 AM, Ralu rm
[email protected]wrote:

Where can one find this example?

-Conrad

i got dat from tutorial . for me the expalnation was not dat gud
so can any one help me with dat

Where’s the complete class?

Conrad T. wrote:

On Wed, Oct 14, 2009 at 3:21 AM, Ralu rm
[email protected]wrote:

Where can one find this example?

-Conrad

i got dat from tutorial . for me the expalnation was not dat gud
so can any one help me with dat

Where’s the complete class?

require ‘digest/sha2’
class User < ActiveRecord::Base
attr_protected :hashed_password, :enabled
attr_accessor :password
validates_presence_of :username
validates_presence_of :email
validates_presence_of :password, :if => :password_required?
validates_presence_of :password_confirmation, :if =>
:password_required?
validates_confirmation_of :password, :if => :password_required?
validates_uniqueness_of :username, :case_sensitive => false
validates_uniqueness_of :email, :case_sensitive => false
validates_length_of :username, :within => 3…64
validates_length_of :email, :within => 5…128
validates_length_of :password, :within => 4…20, :if =>
:password_required?
validates_length_of :profile, :maximum => 1000
def before_save
self.hashed_password = User.encrypt(password) if
!self.password.blank?
end
def password_required?
self.hashed_password.blank? || !self.password.blank?
end
def self.encrypt(string)
return Digest::SHA256.hexdigest(string)
end
end

On Wed, Oct 14, 2009 at 4:19 AM, Ralu rm
[email protected]wrote:

validates_presence_of :username
:password_required?
end
end

‘attr_accessor :password’ will generate two instance methods for class
User
similar
to the following:

def password=(val)
@password = val
end

def password
@password
end

From the above, the instance variable, password, is brought into
scope within the User class when ‘@password = val’ is executed. In
Ruby, you can add an instance variable to a class by simply assigning
a value to instance variable within an instance method. Then executing
it. Finally, I would recommend learning more about Ruby by reading
“Programming Ruby” or “Programming Ruby 1.9”.

Good luck,

-Conrad

Conrad T. wrote:

On Wed, Oct 14, 2009 at 4:19 AM, Ralu rm
[email protected]wrote:

validates_presence_of :username
:password_required?
end
end

‘attr_accessor :password’ will generate two instance methods for class
User
similar
to the following:

def password=(val)

thanks …ill go for that

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