Expose Task.prerequisite_achievements

[mhrivnak]

This attribute isn't available through the TaskManager but should be. Also please verify that the prerequisites are enforced.

Admins should see and edit this.
Anyone who can read Task details should be able to read this attribute.

This is a blocker for AmericanResearchInstitute/poweru-client#59

[jc0n]

It appears that they are not enforced anywhere. I'm a bit unclear as to the exact circumstances in which they would be validated.

I am thinking that we would want to add an authorizer check method for 'Object Owner', the only role besides admin that can create an AssignmentAttempt. The check would validate that the prerequisite achievements are granted for the assignment task before the attempt is created.

[mhrivnak]

That sounds completely reasonable.
On Mar 16, 2012 6:55 PM, "John O'Connor" <
reply@reply.github.com>
wrote:

It appears that they are not enforced anywhere. I'm a bit unclear as to
the exact circumstances in which they would be validated.

I am thinking that we would want to add an authorizer check method for
'Object Owner', the only role besides admin that can create an
AssignmentAttempt. The check would validate that the prerequisite
achievements are granted for the assignment task before the attempt is
created.

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