119 lines
4.7 KiB
Python
119 lines
4.7 KiB
Python
"""
|
|
Views for the course home page.
|
|
"""
|
|
|
|
from django.contrib.auth.decorators import login_required
|
|
from django.core.context_processors import csrf
|
|
from django.template.loader import render_to_string
|
|
from django.utils.decorators import method_decorator
|
|
from django.views.decorators.cache import cache_control
|
|
from django.views.decorators.csrf import ensure_csrf_cookie
|
|
|
|
from courseware.courses import get_course_info_section, get_course_with_access
|
|
from lms.djangoapps.courseware.views.views import CourseTabView
|
|
from opaque_keys.edx.keys import CourseKey
|
|
from openedx.core.djangoapps.plugin_api.views import EdxFragmentView
|
|
from util.views import ensure_valid_course_key
|
|
from web_fragments.fragment import Fragment
|
|
|
|
from .course_outline import CourseOutlineFragmentView
|
|
from .course_dates import CourseDatesFragmentView
|
|
from ..utils import get_course_outline_block_tree
|
|
|
|
|
|
class CourseHomeView(CourseTabView):
|
|
"""
|
|
The home page for a course.
|
|
"""
|
|
@method_decorator(login_required)
|
|
@method_decorator(ensure_csrf_cookie)
|
|
@method_decorator(cache_control(no_cache=True, no_store=True, must_revalidate=True))
|
|
@method_decorator(ensure_valid_course_key)
|
|
def get(self, request, course_id, **kwargs):
|
|
"""
|
|
Displays the home page for the specified course.
|
|
"""
|
|
return super(CourseHomeView, self).get(request, course_id, 'courseware', **kwargs)
|
|
|
|
def render_to_fragment(self, request, course=None, tab=None, **kwargs):
|
|
course_id = unicode(course.id)
|
|
home_fragment_view = CourseHomeFragmentView()
|
|
return home_fragment_view.render_to_fragment(request, course_id=course_id, **kwargs)
|
|
|
|
|
|
class CourseHomeFragmentView(EdxFragmentView):
|
|
"""
|
|
A fragment to render the home page for a course.
|
|
"""
|
|
|
|
def _get_resume_course_info(self, request, course_id):
|
|
"""
|
|
Returns information relevant to resume course functionality.
|
|
|
|
Returns a tuple: (has_visited_course, resume_course_url)
|
|
has_visited_course: True if the user has ever visted the course, False otherwise.
|
|
resume_course_url: The URL of the last accessed block if the user has visited the course,
|
|
otherwise the URL of the course root.
|
|
|
|
"""
|
|
|
|
def get_last_accessed_block(block):
|
|
"""
|
|
Gets the deepest block marked as 'last_accessed'.
|
|
"""
|
|
if not block['last_accessed']:
|
|
return None
|
|
if not block.get('children'):
|
|
return block
|
|
for child in block['children']:
|
|
last_accessed_block = get_last_accessed_block(child)
|
|
if last_accessed_block:
|
|
return last_accessed_block
|
|
return block
|
|
|
|
course_outline_root_block = get_course_outline_block_tree(request, course_id)
|
|
last_accessed_block = get_last_accessed_block(course_outline_root_block)
|
|
has_visited_course = bool(last_accessed_block)
|
|
if last_accessed_block:
|
|
resume_course_url = last_accessed_block['lms_web_url']
|
|
else:
|
|
resume_course_url = course_outline_root_block['lms_web_url']
|
|
|
|
return (has_visited_course, resume_course_url)
|
|
|
|
def render_to_fragment(self, request, course_id=None, **kwargs):
|
|
"""
|
|
Renders the course's home page as a fragment.
|
|
"""
|
|
course_key = CourseKey.from_string(course_id)
|
|
|
|
# Render the outline as a fragment
|
|
outline_fragment = CourseOutlineFragmentView().render_to_fragment(request, course_id=course_id, **kwargs)
|
|
|
|
# Get resume course information
|
|
has_visited_course, resume_course_url = self._get_resume_course_info(request, course_id)
|
|
|
|
# Render the course dates as a fragment
|
|
dates_fragment = CourseDatesFragmentView().render_to_fragment(request, course_id=course_id, **kwargs)
|
|
|
|
# Get the handouts
|
|
# TODO: Use get_course_overview_with_access and blocks api
|
|
course = get_course_with_access(request.user, 'load', course_key, check_if_enrolled=True)
|
|
handouts_html = get_course_info_section(request, request.user, course, 'handouts')
|
|
|
|
# Render the course home fragment
|
|
context = {
|
|
'csrf': csrf(request)['csrf_token'],
|
|
'course_key': course_key,
|
|
'course': course,
|
|
'outline_fragment': outline_fragment,
|
|
'handouts_html': handouts_html,
|
|
'has_visited_course': has_visited_course,
|
|
'resume_course_url': resume_course_url,
|
|
'dates_fragment': dates_fragment,
|
|
'disable_courseware_js': True,
|
|
'uses_pattern_library': True,
|
|
}
|
|
html = render_to_string('course_experience/course-home-fragment.html', context)
|
|
return Fragment(html)
|