Looking at Keith Donald's and Roger Hughes's spring tutorial, the flow is as follows;
IF user is signed in to to application THEN
IF user is signed in to Facebook
read Facebook data,
display Facebook data
ELSE (facebook handles)
ask user to loging to Facebook
goto if user is signed in to Facebook step
ENDIF
ELSE
ask user to sign in
create user object with an id
when user has signed in, go back to the beginning
END IF
However as my application is going to run on a facebook canvas I want to skip the sign-in to application stage (as it is meaningless to as the user to login explicitly to my application which already is running on facebook) for which the flow is going to be something like;
create a user (session scope)
IF user is signed in to Facebook
update user object with facebook id
read Facebook data,
display Facebook data
ELSE (facebook handles)
ask user to loging to Facebook
goto if user is signed in to Facebook step
ENDIF
Would really appreciate a sample.
