47 lines
1.6 KiB
Python
47 lines
1.6 KiB
Python
"""
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Module to define url helpers functions
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"""
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from xmodule.modulestore.search import path_to_location, navigation_index
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from xmodule.modulestore.django import modulestore
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from django.core.urlresolvers import reverse
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def get_redirect_url(course_key, usage_key):
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""" Returns the redirect url back to courseware
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Args:
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course_id(str): Course Id string
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location(str): The location id of course component
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Raises:
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ItemNotFoundError if no data at the location or NoPathToItem if location not in any class
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Returns:
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Redirect url string
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"""
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(course_key, chapter, section, position) = path_to_location(modulestore(), usage_key)
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# choose the appropriate view (and provide the necessary args) based on the
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# args provided by the redirect.
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# Rely on index to do all error handling and access control.
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if chapter is None:
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redirect_url = reverse('courseware', args=(unicode(course_key), ))
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elif section is None:
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redirect_url = reverse('courseware_chapter', args=(unicode(course_key), chapter))
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elif position is None:
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redirect_url = reverse(
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'courseware_section',
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args=(unicode(course_key), chapter, section)
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)
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else:
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# Here we use the navigation_index from the position returned from
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# path_to_location - we can only navigate to the topmost vertical at the
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# moment
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redirect_url = reverse(
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'courseware_position',
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args=(unicode(course_key), chapter, section, navigation_index(position))
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)
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return redirect_url
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