I had this same problem a while ago. The issue comes in the
update_attributes since it wants to update all of the attributes that are
being passed to it, which is including an empty password. To fix it you'll
need to do two things. First change the validates to only validate if a
password is being passed.
validates :password, length: { minimum: 6 }, :if => :password
Second, remove the parameters for password if the are blank on your update
method.
if params[:password].blank?
params.delete(:password)
end
That should get you where you want to go.
On Friday, August 1, 2014 8:44:53 AM UTC-6, Ruby-Forum.com User wrote:
>
> I have a User model:
>
> create_table "users", force: true do |t|
> t.string "name"
> t.string "email"
> t.datetime "created_at"
> t.datetime "updated_at"
> t.string "password_digest"
> end
> add_index "users", ["name"], name: "index_users_on_name"
>
> Then, I have the following validation:
>
> class User < ActiveRecord::Base
> has_secure_password
> validates :password, length: {minimum: 4}
> end
>
> Then, I update in my controller the name and email of a certain user:
>
> ...
> logger.debug('++++++++ new_values after: '+new_values.inspect)
> if @user.update_attributes(new_values)
> logger.debug('+++++++++++++ SUCCESS')
> ...
> end
>
> (new_values is of type ActionController::Parameters)
>
> My log shows
>
> ++++++++ new_values after: {"name"=>"1111", "email"=>"1111"}
>
> However, the update_attributes fails, and the error message says:
>
> Password is too short (minimum is 4 characters)
>
> What I don't understand is, that I don't supply a new password. Why,
> then, is password validation triggered here? And how should I implement
> this?
>
> Background for this question:
>
> This code is executed only, when a user wants to edit his profile data
> (which, for the time being, consist only of name and email). It is
> ensured that only a logged in user can execute this code, and only for
> his own data. Therefore, I don't require to enter the password. He had
> entered it anyway when logging in.
>
> --
> Posted via http://www.ruby-forum.com/.
>
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