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-rw-r--r--middleware/pagesize.py29
1 files changed, 29 insertions, 0 deletions
diff --git a/middleware/pagesize.py b/middleware/pagesize.py
new file mode 100644
index 00000000..bb6c7aa3
--- /dev/null
+++ b/middleware/pagesize.py
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+# used in questions
+QUESTIONS_PAGE_SIZE = 10
+class QuestionsPageSizeMiddleware(object):
+ def process_request(self, request):
+ # Set flag to False by default. If it is equal to True, then need to be saved.
+ pagesize_changed = False
+ # get pagesize from session, if failed then get default value
+ user_page_size = request.session.get("pagesize", QUESTIONS_PAGE_SIZE)
+ # set pagesize equal to logon user specified value in database
+ if request.user.is_authenticated() and request.user.questions_per_page > 0:
+ user_page_size = request.user.questions_per_page
+
+ try:
+ # get new pagesize from UI selection
+ pagesize = int(request.GET.get('pagesize', user_page_size))
+ if pagesize <> user_page_size:
+ pagesize_changed = True
+
+ except ValueError:
+ pagesize = user_page_size
+
+ # save this pagesize to user database
+ if pagesize_changed:
+ if request.user.is_authenticated():
+ user = request.user
+ user.questions_per_page = pagesize
+ user.save()
+ # put pagesize into session
+ request.session["pagesize"] = pagesize \ No newline at end of file