def modify_extract(request):
"""Modify an extract.
Returns:
HttpResponse
"""
data = request.POST
try:
extract_pk = request.POST['extract']
except KeyError:
raise Http404
extract = get_object_or_404(Extract, pk=extract_pk)
chapter = extract.chapter
if 'delete' in data:
old_pos = extract.position_in_chapter
# Move other extracts in same chapter
for extract_c in extract.chapter.get_extracts():
if old_pos <= extract_c.position_in_chapter:
extract_c.position_in_chapter = extract_c.position_in_chapter \
- 1
extract_c.save()
tutorial = extract.chapter.get_tutorial()
extract.delete()
tutorial.update = datetime.now()
tutorial.save()
return redirect(chapter.get_absolute_url())
elif 'move' in data:
try:
new_pos = int(request.POST['move_target'])
# Error, the user misplayed with the move button
except ValueError:
return redirect(extract.get_absolute_url())
move(extract, new_pos, 'position_in_chapter', 'chapter',
'get_extracts')
extract.save()
tutorial = extract.chapter.get_tutorial()
tutorial.update = datetime.now()
tutorial.save()
return redirect(extract.get_absolute_url())
raise PermissionDenied
def modify_part(request):
"""Modifiy a part.
Returns:
HttpResponse
"""
part_pk = request.POST['part']
part = get_object_or_404(Part, pk=part_pk)
# Make sure the user is allowed to do that
if request.user not in part.tutorial.authors.all():
raise PermissionDenied
if 'move' in request.POST:
try:
new_pos = int(request.POST['move_target'])
# Invalid conversion, maybe the user played with the move button
except ValueError:
return redirect(part.tutorial.get_absolute_url())
move(part, new_pos, 'position_in_tutorial', 'tutorial', 'get_parts')
part.save()
tutorial = part.tutorial
tutorial.update = datetime.now()
tutorial.save()
elif 'delete' in request.POST:
# Delete all chapters belonging to the part
Chapter.objects.all().filter(part=part).delete()
# Move other parts
old_pos = part.position_in_tutorial
for tut_p in part.tutorial.get_parts():
if old_pos <= tut_p.position_in_tutorial:
tut_p.position_in_tutorial = tut_p.position_in_tutorial - 1
tut_p.save()
# Actually delete the part
tutorial = part.tutorial
part.delete()
tutorial.update = datetime.now()
tutorial.save()
return redirect(part.tutorial.get_absolute_url())
def modify_chapter(request):
"""Modify a chapter.
Returns:
HttpResponse
"""
data = request.POST
try:
chapter_pk = request.POST['chapter']
except KeyError:
raise Http404
chapter = get_object_or_404(Chapter, pk=chapter_pk)
# Make sure the user is allowed to do that
if request.user not in chapter.get_tutorial().authors.all():
raise PermissionDenied
if 'move' in data:
try:
new_pos = int(request.POST['move_target'])
# User misplayed with the move button
except ValueError:
return redirect(chapter.get_absolute_url())
move(chapter, new_pos, 'position_in_part', 'part', 'get_chapters')
chapter.update_position_in_tutorial()
chapter.save()
messages.info(request, u'Le chapitre a bien été déplacé.')
tutorial = chapter.get_tutorial()
tutorial.update = datetime.now()
tutorial.save()
elif 'delete' in data:
old_pos = chapter.position_in_part
old_tut_pos = chapter.position_in_tutorial
# Move other chapters first
for tut_c in chapter.part.get_chapters():
if old_pos <= tut_c.position_in_part:
tut_c.position_in_part = tut_c.position_in_part - 1
tut_c.save()
# Then delete the chapter
chapter.delete()
# Update all the position_in_tutorial fields for the next chapters
for tut_c in Chapter.objects\
.filter(position_in_tutorial__gt=old_tut_pos):
tut_c.update_position_in_tutorial()
tut_c.save()
messages.info(request, u'Le chapitre a bien été supprimé.')
tutorial = chapter.get_tutorial()
tutorial.update = datetime.now()
tutorial.save()
return redirect(chapter.part.get_absolute_url())
return redirect(chapter.get_absolute_url())