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Merge pull request #14319 from edx/revert-14311-sstudent/TNL-6281

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Revert "add index for modified to course and subsection grades"
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sanfordstudent
2017-01-12 11:36:15 -05:00
committed by GitHub
parent 136355c48f c07f6405b9
commit a4fca6be1b
2 changed files with 0 additions and 33 deletions
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22
lms/djangoapps/grades/migrations/0009_auto_20170111_1507.py
View File

@@ -1,22 +0,0 @@
# -*- coding: utf-8 -*-
from __future__ import unicode_literals
from django.db import migrations, models
class Migration(migrations.Migration):
dependencies = [
('grades', '0008_persistentsubsectiongrade_first_attempted'),
]
operations = [
migrations.AlterIndexTogether(
name='persistentcoursegrade',
index_together=set([('passed_timestamp', 'course_id'), ('modified', 'course_id')]),
),
migrations.AlterIndexTogether(
name='persistentsubsectiongrade',
index_together=set([('modified', 'course_id', 'usage_key')]),
),
]

11
lms/djangoapps/grades/models.py
View File

@@ -253,14 +253,6 @@ class PersistentSubsectionGrade(DeleteGradesMixin, TimeStampedModel):
# * Course staff can see all grades for a course using (course_id,)
('course_id', 'user_id', 'usage_key'),
]
# Allows querying in the following ways:
# (modified): find all the grades updated within a certain timespan
# (modified, course_id): find all the grades updated within a timespan for a certain course
# (modified, course_id, usage_key): find all the grades updated within a timespan for a subsection
# in a course
index_together = [
('modified', 'course_id', 'usage_key')
]
# primary key will need to be large for this table
id = UnsignedBigIntAutoField(primary_key=True) # pylint: disable=invalid-name
@@ -510,14 +502,11 @@ class PersistentCourseGrade(DeleteGradesMixin, TimeStampedModel):
# (course_id) for instructors to see all course grades, implicitly created via the unique_together constraint
# (user_id) for course dashboard; explicitly declared as an index below
# (passed_timestamp, course_id) for tracking when users first earned a passing grade.
# (modified): find all the grades updated within a certain timespan
# (modified, course_id): find all the grades updated within a certain timespan for a course
unique_together = [
('course_id', 'user_id'),
]
index_together = [
('passed_timestamp', 'course_id'),
('modified', 'course_id')
]
# primary key will need to be large for this table