Added normalize column to export grade book to remote gradebook #209
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amir-qayyum-khan
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@noisecapella fixed cherry pic issues as you suggested and made this PR. |
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Each cherry picked commit should contain exactly the diff that's present in the original commit so that we can deal with a clean git history. I'm going to go through and comment on each part of each diff that is out of place so that it can be fixed. |
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…ssue using gradebook summery
This will put the actual score and actual max score in scope for the the return_csv function, so actual scores can be dumped. The ultimate goal is to provide this data in the CSV dump that is passed to Stellar via pylmod. This is PR openedx#10395 on edX, and issue 95 on mitocw's edx fork. https://github.com/edx/edx-platform/pull/10395 #95
…scores). The progress page did a number of things that make performance terrible for courses with large numbers of problems, particularly if those problems are customresponse CapaModule problems that need to be executed via codejail. The grading code takes pains to not instantiate student state and execute the problem code. If a student has answered the question, the max score is stored in StudentModule. However, if the student hasn't attempted the question yet, we have to run the problem code just to call .max_score() on it. This is necessary in grade() if the student has answered other problems in the assignment (so we can know what to divide by). This is always necessary to know in progress_summary() because we list out every problem there. Code execution can be especially slow if the problems need to invoke codejail. To address this, we create a MaxScoresCache that will cache the max raw score possible for every problem. We select the cache keys so that it will automatically become invalidated when a new version of the course is published. The fundamental assumption here is that a problem cannot have two different max score values for two unscored students. A problem *can* score two students differently such that they have different max scores. So Carlos can have 2/3 on a problem, while Lyla gets 3/4. But if neither Carlos nor Lyla has ever interacted with the problem (i.e. they're just seeing it on their progress page), they must both see 0/4 -- it cannot be the case that Carlos sees 0/3 and Lyla sees 0/4. We used to load all student state into two separate FieldDataCache instances, after which we do a bunch of individual queries for scored items. Part of this split-up was done because of locking problems, but I think we might have gotten overzealous with our manual transaction hammer. In this commit, we consolidate all state access in grade() and progress() to use one shared FieldDataCache. We also use a filter so that we only pull back StudentModule state for things that might possibly affect the grade -- items that either have scores or have children. Because some older XModules do work in their __init__() methods (like Video), instantiating them takes time, particularly on large courses. This commit also changes the code that fetches the grading_context to filter out children that can't possibly affect the grade. Finally, we introduce a ScoresClient that also tries to fetch score information all at once, instead of in separate queries. Technically, we are fetching this information redundantly, but that's because the state and score interfaces are being teased apart as we move forward. Still, this only amounts to one extra SQL query, and has very little impact on performance overall. Much thanks to @adampalay -- his hackathon work in openedx#7168 formed the basis of this. https://openedx.atlassian.net/browse/CSM-17
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This change allows graded assignments to be added to a campus LMS regardless of the granularity at which the problem sits. Previously a grade could only be returned if the usage ID for the problem itself was specified in the LTI launch. The code assumes that courses taking advantage of this functionality are arranged in a hiearchy (with sections being parents to verticals, and verticals being parents to problems). When a grading event occurs it traverses the parent hiearchy to identify any previous graded LTI launches for which the new scoring event should generate a grade update. It then calculates and sends scores to each of those outcome services. Since grade calculation is an expensive operation, the code optimizes the case where a problem has been added only once as a leaf unit. In that case it is able to behave as before, just taking the grade from the signal without having to calculate grades for the whole course.
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Fixed @noisecapella |
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Can you tell me why we need 0c49f2c ? |
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@pdpinch it has ProgressSummary code which i am using to get max point in legacy grade book ce17048#diff-5dd41ae768fed10fe37df53a1d9e78c8R779 |
This was referenced Mar 11, 2016
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Background
This PR resolves #147, resolves #187 and resolves #188
Fixed cherry pic issues of #201
What is done in this PR
Studio Updates: None
LMS Updates:
@pdpinch @pwilkins @noisecapella