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# IVLE - Informatics Virtual Learning Environment
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# Copyright (C) 2007-2008 The University of Melbourne
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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# Script to calculate the marks for all students for a particular subject.
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# Requires root to run.
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from xml.dom import minidom
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print >>sys.stderr, "Must run marks.py as root."
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if len(sys.argv) <= 1:
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print >>sys.stderr, "Usage: python ./marks.py subject"
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# Regex for valid identifiers (subject/worksheet names)
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re_ident = re.compile("[0-9A-Za-z_]+")
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# This code copy/edited from www/apps/tutorial/__init__.py
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def is_valid_subjname(subject):
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m = re_ident.match(subject)
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return m is not None and m.end() == len(subject)
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# Subject names must be valid identifiers
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if not is_valid_subjname(subject):
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print >>sys.stderr, "Invalid subject name: %s." % repr(subject)
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def get_userdata(user):
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Given a User object, returns a list of strings for the user data which
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will be part of the output for this user.
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(This is not marks, it's other user data).
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last_login = (None if user.last_login is None else
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time.strftime("%d/%m/%y", user.last_login))
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return [user.studentid, user.login, user.fullname, last_login]
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userdata_header = ["Student ID", "Login", "Full name", "Last login"]
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def get_assessable_worksheets(subject):
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Given a subject name, returns a list of strings - the worksheet names (not
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primary key IDs) for all assessable worksheets for that subject.
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May raise Exceptions, which are fatal.
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# NOTE: This code is copy/edited from
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# www/apps/tutorial/__init__.py:handle_subject_menu
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# Should be factored out of there.
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# Parse the subject description file
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# The subject directory must have a file "subject.xml" in it,
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# or it does not exist (raise exception).
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subjectfile = open(os.path.join(conf.subjects_base, subject,
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raise Exception("Subject %s not found." % repr(subject))
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assessable_worksheets = []
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# Read in data about the subject
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subjectdom = minidom.parse(subjectfile)
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# TEMP: All of this is for a temporary XML format, which will later
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worksheetsdom = subjectdom.documentElement
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worksheets = [] # List of string IDs
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for worksheetdom in worksheetsdom.childNodes:
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if worksheetdom.nodeType == worksheetdom.ELEMENT_NODE:
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# (Note: assessable will default to False, unless it is explicitly
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if worksheetdom.getAttribute("assessable") == "true":
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assessable_worksheets.append(worksheetdom.getAttribute("id"))
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return assessable_worksheets
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def get_marks_header(worksheets):
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Given a list of strings - the assessable worksheets - returns a new list
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of strings - the column headings for the marks section of the CSV output.
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return worksheets + ["Total %", "Mark"]
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def get_marks_user(subject, worksheets, user):
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Given a subject, a list of strings (the assessable worksheets), and a user
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object, returns the user's percentage for each worksheet, overall, and
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their final mark, as a list of strings, in a manner which corresponds to
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the headings produced by get_marks_header.
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# NOTE: This code is copy/edited from
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# www/apps/tutorial/__init__.py:handle_subject_menu
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# Should be factored out of there.
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# As we go, calculate the total score for this subject
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# (Assessable worksheets only, mandatory problems only)
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for worksheet in worksheets:
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# We simply ignore optional exercises here
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mand_done, mand_total, _, _ = (
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db.calculate_score_worksheet(user.login, subject,
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worksheet_pcts.append(float(mand_done) / mand_total)
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problems_done += mand_done
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problems_total += mand_total
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except common.db.DBException:
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# Worksheet is probably not in database yet
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problems_pct = float(problems_done) / problems_total
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problems_pct_int = (100 * problems_done) / problems_total
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# XXX Marks calculation (should be abstracted out of here!)
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# percent / 16, rounded down, with a maximum mark of 5
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mark = min(problems_pct_int / 16, max_mark)
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return worksheet_pcts + [problems_pct, mark]
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def writeuser(subject, worksheets, user, csvfile):
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userdata = get_userdata(user)
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marksdata = get_marks_user(subject, worksheets, user)
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csvfile.writerow(userdata + marksdata)
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# Get the list of assessable worksheets from the subject.xml file,
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# and the list of all users from the DB.
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worksheets = get_assessable_worksheets(subject)
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list = db.get_users()
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except Exception, message:
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print >>sys.stderr, "Error: " + str(message)
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# Start writing the CSV file - header
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csvfile = csv.writer(sys.stdout)
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csvfile.writerow(userdata_header + get_marks_header(worksheets))
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list.sort(key=lambda user: user.login)
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writeuser(subject, worksheets, user, csvfile)
added
removed
bin/marks.py
