281ad63d2b
Adds a split_test_module XModule, that can choose one of its children
to display, based on a get_condition_for_user API added to the runtime.
To test, add something like this to an xml course, or make equivalent
tweaks in mongo.
<vertical url_name="split_test_vert">
<split_test url_name="split1" experiment_id="0" condition_id_to_child='{"0": "i4x://MITx/6.00x/html/split_test_cond0", "1": "i4x://MITx/6.00x/html/split_test_cond1"}'>
<html url_name="split_test_cond0">condition 0</html>
<html url_name="split_test_cond1">condition 1</html>
</split_test>
</vertical>
Also needs an experiment configured in the course policy json: e.g.
"user_partitions": [{"id": 0,
"name": "Experiment 0",
"description": "Unicorns?",
"version": 1,
"groups": [{"id": 0,
"name": "group 0",
"version": 1},
{"id": 1,
"name": "group 1",
"version": 1}]}]
(This particular snippet will work inside a course with org MITx
and course name 6.00x)
Co-Author: Sarina Canelake <sarina@edx.org>
Co-Author: Julia Hansbrough <julia@edx.org>
Co-Author: Diana Huang <diana@edx.org>
Co-Author: Calen Pennington <cale@edx.org>
[LMS-2095]
62 lines
1.7 KiB
Python
62 lines
1.7 KiB
Python
"""
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A service-like user_info interface. Could be made into an http API later, but for now
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just in-process. Exposes global and per-course key-value pairs for users.
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Implementation note:
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Stores global metadata using the UserPreference model, and per-course metadata using the
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UserCourseTag model.
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"""
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from user_api.models import UserCourseTag
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def get_course_tag(user, course_id, key):
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"""
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Gets the value of the user's course tag for the specified key in the specified
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course_id.
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Args:
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user: the User object for the course tag
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course_id: course identifier (string)
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key: arbitrary (<=255 char string)
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Returns:
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string value, or None if there is no value saved
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"""
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try:
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record = UserCourseTag.objects.get(
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user=user,
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course_id=course_id,
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key=key)
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return record.value
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except UserCourseTag.DoesNotExist:
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return None
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def set_course_tag(user, course_id, key, value):
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"""
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Sets the value of the user's course tag for the specified key in the specified
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course_id. Overwrites any previous value.
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The intention is that the values are fairly short, as they will be included in all
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analytics events about this user.
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Args:
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user: the User object
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course_id: course identifier (string)
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key: arbitrary (<=255 char string)
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value: arbitrary string
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"""
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record, _ = UserCourseTag.objects.get_or_create(
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user=user,
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course_id=course_id,
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key=key)
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record.value = value
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record.save()
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# TODO: There is a risk of IntegrityErrors being thrown here given
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# simultaneous calls from many processes. Handle by retrying after a short delay?
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