Hi,
I am new to Rails.I tried developing a basic quiz application.Please
help me out in my doubt.Thanks in advance
<% CODE %>
class QuizController < ApplicationController
def index
i have retrieved the first five questions from the database for
displaying the #question to user
@quiz=Quiz.find(:all,:limit=>5)
end
def report
end
this method checks the answer and gives score
def checkanswer
here i want to access the @quiz object which is a set of questions i
have #retreived from the database.Hot to access it?
end
end
Subashini K. wrote:
Hi,
I am new to Rails.I tried developing a basic quiz application.Please
help me out in my doubt.Thanks in advance
<% CODE %>
class QuizController < ApplicationController
def index
i have retrieved the first five questions from the database for
displaying the #question to user
@quiz=Quiz.find(:all,:limit=>5)
You should really call this variable @quizzes, so it will be clear that
it contains an Array of Quiz objects, not just one.
end
def report
end
this method checks the answer and gives score
def checkanswer
here i want to access the @quiz object which is a set of questions i
have #retreived from the database.Hot to access it?
You’ll need to retrieve the records again, or pass them in from params
or the session. Instance variables do not persist between controller
method calls (because the controller is freshly instantiated each time a
request is made).
end
end
Best,
Marnen Laibow-Koser
http://www.marnen.org
[email protected]
Subashini K. wrote:
Hi,
I am new to Rails.I tried developing a basic quiz application.Please
help me out in my doubt.Thanks in advance
<% CODE %>
class QuizController < ApplicationController
def index
i have retrieved the first five questions from the database for
displaying the #question to user
@quiz=Quiz.find(:all,:limit=>5)
end
def report
end
this method checks the answer and gives score
def checkanswer
here i want to access the @quiz object which is a set of questions i
have #retreived from the database.Hot to access it?
end
end
hi Subashini,
I think you can use @quiz variable by making it a class variable as
@@quiz or a global variable $quiz.
might help,
Saurabh
On Tue, Sep 22, 2009 at 8:51 PM, Saurabh P. <
[email protected]> wrote:
hi Subashini,
I think you can use @quiz variable by making it a class variable as
@@quiz or a global variable $quiz.
Certainly, a wrong way to do it. Don’t do it (at least in rails controller)
As suggested earlier, you should pass ids in params or store in session
to
retrieve in your check_answer method.
might help,
Saurabh
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Saurabh P. wrote:
[…]
hi Subashini,
I think you can use @quiz variable by making it a class variable as
@@quiz or a global variable $quiz.
DON’T DO THAT! That will cause other problems.
might help,
Saurabh
Best,
Marnen Laibow-Koser
http://www.marnen.org
[email protected]