109 lines
3.8 KiB
Python
109 lines
3.8 KiB
Python
"""
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Handles requests for data, returning a json
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"""
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import logging
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from django.utils import simplejson
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from django.http import HttpResponse
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from courseware.courses import get_course_with_access
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from courseware.access import has_access
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from class_dashboard import dashboard_data
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from opaque_keys.edx.locations import SlashSeparatedCourseKey
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log = logging.getLogger(__name__)
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def has_instructor_access_for_class(user, course_id):
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"""
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Returns true if the `user` is an instructor for the course.
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"""
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course = get_course_with_access(user, 'staff', course_id, depth=None)
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return has_access(user, 'staff', course)
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def all_sequential_open_distrib(request, course_id):
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"""
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Creates a json with the open distribution for all the subsections in the course.
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`request` django request
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`course_id` the course ID for the course interested in
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Returns the format in dashboard_data.get_d3_sequential_open_distrib
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"""
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json = {}
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# Only instructor for this particular course can request this information
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course_key = SlashSeparatedCourseKey.from_deprecated_string(course_id)
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if has_instructor_access_for_class(request.user, course_key):
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try:
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json = dashboard_data.get_d3_sequential_open_distrib(course_key)
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except Exception as ex: # pylint: disable=broad-except
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log.error('Generating metrics failed with exception: %s', ex)
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json = {'error': "error"}
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else:
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json = {'error': "Access Denied: User does not have access to this course's data"}
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return HttpResponse(simplejson.dumps(json), mimetype="application/json")
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def all_problem_grade_distribution(request, course_id):
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"""
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Creates a json with the grade distribution for all the problems in the course.
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`Request` django request
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`course_id` the course ID for the course interested in
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Returns the format in dashboard_data.get_d3_problem_grade_distrib
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"""
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json = {}
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# Only instructor for this particular course can request this information
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course_key = SlashSeparatedCourseKey.from_deprecated_string(course_id)
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if has_instructor_access_for_class(request.user, course_key):
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try:
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json = dashboard_data.get_d3_problem_grade_distrib(course_key)
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except Exception as ex: # pylint: disable=broad-except
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log.error('Generating metrics failed with exception: %s', ex)
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json = {'error': "error"}
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else:
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json = {'error': "Access Denied: User does not have access to this course's data"}
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return HttpResponse(simplejson.dumps(json), mimetype="application/json")
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def section_problem_grade_distrib(request, course_id, section):
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"""
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Creates a json with the grade distribution for the problems in the specified section.
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`request` django request
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`course_id` the course ID for the course interested in
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`section` The zero-based index of the section for the course
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Returns the format in dashboard_data.get_d3_section_grade_distrib
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If this is requested multiple times quickly for the same course, it is better to call all_problem_grade_distribution
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and pick out the sections of interest.
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"""
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json = {}
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# Only instructor for this particular course can request this information
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course_key = SlashSeparatedCourseKey.from_deprecated_string(course_id)
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if has_instructor_access_for_class(request.user, course_key):
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try:
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json = dashboard_data.get_d3_section_grade_distrib(course_key, section)
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except Exception as ex: # pylint: disable=broad-except
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log.error('Generating metrics failed with exception: %s', ex)
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json = {'error': "error"}
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else:
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json = {'error': "Access Denied: User does not have access to this course's data"}
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return HttpResponse(simplejson.dumps(json), mimetype="application/json")
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