Ejemplo n.º 1
0
def import_associatedrole(request):
    # configure template
    csv = create_temp_copy(request.FILES['datafile'].temporary_file_path())
    enc = get_variable(request, 'encoding')
    email = get_variable(request, 'email_notification')
    write_last_parameter(request.user,
                         'dbbackend.database_associatedrole.email', email)
    if len(email) == 0:
        email = None
    t = threading.Thread(target=dbimport.queue_import_associatedrole,
                         args=(csv, enc),
                         kwargs={'email': email})
    t.setDaemon(True)
    t.start()
    template = loader.get_template('message.html')
    context = applist.template_context()
    context[
        'message'] = "Started import of associate role... Check 'Table status' page for progress."
    context['back_link'] = "/dbbackend/tablestatus"
    context['back_text'] = "Table status"
    return HttpResponse(template.render(context, request))
Ejemplo n.º 2
0
def import_graderesults(request):
    # configure template
    csv = create_temp_copy(request.FILES['datafile'].temporary_file_path())
    year = int(get_variable(request, 'year', def_value='1900'))
    isgzip = (get_variable(request, 'gzip', def_value='off') == 'on')
    enc = get_variable(request, 'encoding')
    email = get_variable(request, 'email_notification')
    write_last_parameter(request.user, 'dbbackend.database_graderesults.email',
                         email)
    if len(email) == 0:
        email = None
    t = threading.Thread(target=dbimport.queue_import_grade_results,
                         args=(year, csv, isgzip, enc),
                         kwargs={'email': email})
    t.setDaemon(True)
    t.start()
    template = loader.get_template('message.html')
    context = applist.template_context()
    context[
        'message'] = "Started import of grade results... Check 'Table status' page for progress."
    context['back_link'] = "/dbbackend/tablestatus"
    context['back_text'] = "Table status"
    return HttpResponse(template.render(context, request))
Ejemplo n.º 3
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def import_bulk(request):
    # configure template
    csv = request.FILES['datafile'].temporary_file_path()
    email = get_variable(request, 'email_notification')
    write_last_parameter(request.user, 'dbbackend.database_bulk.email', email)
    if len(email) == 0:
        email = None
    msg = dbimport.import_bulk(csv, email)
    template = loader.get_template('message.html')
    context = applist.template_context()
    if msg is None:
        context['message'] = "Successful bulk import!"
    else:
        context['message'] = "Failed to bulk import: " + msg
    context['back_link'] = "/"
    context['back_text'] = "Start"
    return HttpResponse(template.render(context, request))
Ejemplo n.º 4
0
def update_studentdates(request):
    # configure template
    email = get_variable(request, 'email_notification')
    write_last_parameter(request.user, 'dbbackend.database_studentdates.email',
                         email)
    if len(email) == 0:
        email = None
    t = threading.Thread(target=dbimport.queue_populate_student_dates,
                         args=(),
                         kwargs={'email': email})
    t.setDaemon(True)
    t.start()
    template = loader.get_template('message.html')
    context = applist.template_context()
    context[
        'message'] = "Started student dates recalculation... Check 'Table status' page for progress."
    context['back_link'] = "/dbbackend/tablestatus"
    context['back_text'] = "Table status"
    return HttpResponse(template.render(context, request))
Ejemplo n.º 5
0
def details(request):
    # get parameters
    response, studentid = get_variable_with_error(request, 'al', 'student')
    if response is not None:
        return response

    formattype = get_variable(request, 'format')

    # get name
    sql = """
          select name
          from {1}
          where student_id = '{0}'
          order by year desc
          limit 1
          """.format(studentid, GradeResults._meta.db_table)
    logger.debug(sql)
    cursor = connection.cursor()
    cursor.execute(sql)
    sname = ""
    for row2 in cursor.fetchall():
        sname = row2[0]
        break

    # papers
    papers = []
    for gr in GradeResults.objects.all().filter(
            student_id=studentid).order_by('-occurrence_startdate'):
        data = dict()
        data["studentid"] = studentid
        data["studentname"] = sname
        data["program"] = gr.prog_abbr
        data["school"] = gr.school_of_study_clevel
        data["paper"] = gr.paper_master_code
        data["start_date"] = gr.occurrence_startdate
        data["classification"] = gr.classification
        data["credits"] = gr.credits
        data["student_credit_points"] = gr.student_credit_points
        data["grade"] = gr.grade
        data["grade_status"] = gr.grade_status
        papers.append(data)

    # CSV or HTML?
    if formattype in ['csv', 'xls']:
        content = dict()

        # papers
        data = list()
        data.append([
            'ID',
            'Name',
            'Program',
            'Faculty/School',
            'Paper code',
            'Start date',
            'Classification',
            'Credits',
            'Student credit points',
            'Grade',
            'Grade status',
        ])
        for row in papers:
            data.append([
                row["studentid"],
                row["studentname"],
                row["program"],
                row["school"],
                row["paper"],
                row["start_date"],
                row["classification"],
                row["credits"],
                row["student_credit_points"],
                row["grade"],
                row["grade_status"],
            ])
        content['Academic history'] = data

        book = excel.pe.Book(content)
        response = excel.make_response(book,
                                       formattype,
                                       file_name="al-student-{0}.{1}".format(
                                           studentid, formattype))
        return response
    else:
        template = loader.get_template('al/details.html')
        context = applist.template_context('al')
        context['papers'] = papers
        form_utils.add_export_urls(request, context, "/al/details",
                                   ['csv', 'xls'])
        return HttpResponse(template.render(context, request))
Ejemplo n.º 6
0
def output(request):
    # get parameters
    response, school = get_variable_with_error(request, 'al', 'school')
    if response is not None:
        return response

    response, cutoff = get_variable_with_error(request, 'al', 'cutoff')
    if response is not None:
        return response
    cutoff_date = datetime.strptime(cutoff + "-01", "%Y-%m-%d")

    min_age = get_variable(request, 'min_age')
    if (min_age is None) or (len(min_age) == 0):
        min_age = MIN_AGE
    else:
        min_gpa = float(min_age)

    min_gpa = get_variable(request, 'min_gpa')
    if (min_gpa is None) or (len(min_gpa) == 0):
        min_gpa = 0.0
    else:
        min_gpa = float(min_gpa)

    min_points = get_variable(request, 'min_points')
    if (min_points is None) or (len(min_points) == 0):
        min_points = MIN_CREDITS
    else:
        min_points = float(min_points)

    formattype = get_variable(request, 'format')

    # save parameters
    write_last_parameter(request.user, 'al.school', school)
    write_last_parameter(request.user, 'al.cutoff', cutoff)
    write_last_parameter(request.user, 'al.min_age', min_age)
    write_last_parameter(request.user, 'al.min_gpa', min_gpa)
    write_last_parameter(request.user, 'al.min_points', min_points)

    cursor = connection.cursor()

    last_year = cutoff_date.year - 1
    curr_year = cutoff_date.year
    last_year_where = "year = {0}".format(last_year)
    curr_year_where = "(year = {0}) and (issemesteracourse = 1)".format(
        curr_year)
    cols = "owning_school_clevel,paper_occurrence,credits,name,student_id,school_of_study_clevel,dateofbirth,prog_abbr,result_status,grade"
    query = """
          select 
            {7}
          from 
            {6}
          where 
              ({0})
          and (dateofbirth < date '{1}-01' - interval '{2} year')
          and (credits_per_student >= {3})
          and (programme_type_code in ('{4}'))
          and (school_of_study_clevel = '{5}')
          order by student_id
          """

    # last year: query
    sql = query.format(last_year_where, cutoff, min_age, min_points,
                       "', '".join(PROGRAM_CODES), school,
                       GradeResults._meta.db_table, cols)
    logger.debug(sql)
    cursor.execute(sql)

    # last year: generate CSV
    fd, outname = tempfile.mkstemp(suffix=".csv",
                                   prefix="reporting-",
                                   dir=tempfile_utils.gettempdir())
    query_to_csv(cursor, cols, outname)
    os_utils.close_file(fd)

    # last year: calculate GPA
    last_header = []
    last_body = []
    compute_gpa(outname, school, cutoff_date, min_gpa, last_header, last_body)

    # current year: query
    sql = query.format(curr_year_where, cutoff, min_age, min_points,
                       "', '".join(PROGRAM_CODES), school,
                       GradeResults._meta.db_table, cols)
    logger.debug(sql)
    cursor.execute(sql)

    # current year: generate CSV
    fd, outname = tempfile.mkstemp(suffix=".csv",
                                   prefix="reporting-",
                                   dir=tempfile_utils.gettempdir())
    query_to_csv(cursor, cols, outname)

    # current year: calculate GPA
    curr_header = []
    curr_body = []
    compute_gpa(outname, school, cutoff_date, min_gpa, curr_header, curr_body)

    # students have to be good in both years
    final_header = last_header[:]
    final_body = []
    id_idx = last_header.index(HEADER_ID)
    gpa_idx = last_header.index(HEADER_GPA)
    points_idx = last_header.index(HEADER_POINTS)
    final_header.remove(HEADER_GPA)
    final_header.remove(HEADER_POINTS)
    last_ids = [row[id_idx] for row in last_body]
    curr_ids = [row[id_idx] for row in curr_body]
    both = set(last_ids).intersection(set(curr_ids))
    for row in curr_body:
        if row[id_idx] in both:
            arow = []
            for i, c in enumerate(row):
                if (i == gpa_idx) or (i == points_idx):
                    continue
                arow.append(c)
            final_body.append(arow)

    # generate output
    if formattype in ["csv", "xls"]:
        data = OrderedDict()
        data['AL - Recommendations - {0}'.format(school)] = [final_header
                                                             ] + final_body
        data['AL - {1} - {0}'.format(school,
                                     curr_year)] = [curr_header] + curr_body
        data['AL - {1} - {0}'.format(school,
                                     last_year)] = [last_header] + last_body
        book = excel.pe.Book(data)
        response = excel.make_response(book,
                                       formattype,
                                       file_name="al-{0}.{1}".format(
                                           cutoff, formattype))
        return response
    else:
        template = loader.get_template('al/list.html')
        context = applist.template_context('al')
        context['header'] = final_header
        context['body'] = final_body
        context['curr_year'] = curr_year
        context['curr_header'] = curr_header
        context['curr_body'] = curr_body
        context['last_year'] = last_year
        context['last_header'] = last_header
        context['last_body'] = last_body
        context['school'] = school
        form_utils.add_export_urls(request, context, "/al/output",
                                   ['csv', 'xls'])
        response = HttpResponse(template.render(context, request))

    return response
Ejemplo n.º 7
0
def list_by_student(request):
    # get parameters
    response, studentid = get_variable_with_error(request, 'supervisors', 'student')
    if response is not None:
        return response

    formattype = get_variable(request, 'format')

    # supervisors
    supervisors = list()
    sname = None
    for ar in AssociatedRole.objects.all().filter(student_id=studentid):
        for g in GradeResults.objects.all().filter(student_id=studentid):
            sname = g.name
            break
        data = dict()
        data["studentid"] = studentid
        data["studentname"] = sname
        data["supervisor"] = ar.person
        data["role"] = ar.role
        if (data["role"] is None) or (len(data["role"]) == 0):
            data["role"] = "N/A"
        data["active"] = ar.active
        supervisors.append(data)

    # scholarships
    scholarships = []
    for sc in Scholarship.objects.all().filter(student_id=studentid).order_by('-year'):
        data = dict()
        data["studentid"] = studentid
        data["studentname"] = sname
        data["scholarship"] = sc.name
        data["status"] = sc.status
        data["decision"] = sc.decision
        data["year"] = sc.year
        scholarships.append(data)

    # papers
    papers = []
    for gr in GradeResults.objects.all().filter(student_id=studentid).order_by('-occurrence_startdate'):
        data = dict()
        data["studentid"] = studentid
        data["studentname"] = sname
        data["program"] = gr.prog_abbr
        data["school"] = gr.school_of_study_clevel
        data["paper"] = gr.paper_master_code
        data["start_date"] = gr.occurrence_startdate
        data["classification"] = gr.classification
        data["credits"] = gr.credits
        data["student_credit_points"] = gr.student_credit_points
        data["grade"] = gr.grade
        data["grade_status"] = gr.grade_status
        papers.append(data)

    # CSV or HTML?
    if formattype in ['csv', 'xls']:
        content = OrderedDict()

        # supervisors
        data = list()
        data.append([
            'ID',
            'Name',
            'Supervisor',
            'Role',
            'Current',
        ])
        for row in supervisors:
            data.append([
                row["studentid"],
                row["studentname"],
                row["supervisor"],
                row["role"],
                "Yes" if row["active"] else "No",
            ])
        content['Supervisors'] = data

        # scholarships
        data = list()
        data.append([
            'ID',
            'Name',
            'Scholarship',
            'Status',
            'Decision',
            'Year',
        ])
        for row in scholarships:
            data.append([
                row["studentid"],
                row["studentname"],
                row["scholarship"],
                row["status"],
                row["decision"],
                row["year"],
            ])
        content['Scholarships'] = data

        # papers
        data = list()
        data.append([
            'ID',
            'Name',
            'Program',
            'Faculty/School',
            'Paper code',
            'Start date',
            'Classification',
            'Credits',
            'Student credit points',
            'Grade',
            'Grade status',
        ])
        for row in papers:
            data.append([
                row["studentid"],
                row["studentname"],
                row["program"],
                row["school"],
                row["paper"],
                row["start_date"],
                row["classification"],
                row["credits"],
                row["student_credit_points"],
                row["grade"],
                row["grade_status"],
            ])
        content['Academic history'] = data

        book = excel.pe.Book(content)
        response = excel.make_response(book, formattype, file_name="student-{0}.{1}".format(studentid, formattype))
        return response
    else:
        template = loader.get_template('supervisors/list_by_student.html')
        context = applist.template_context('supervisors')
        context['supervisors'] = supervisors
        context['scholarships'] = scholarships
        context['papers'] = papers
        form_utils.add_export_urls(request, context, "/supervisors/list-by-student", ['csv', 'xls'])
        return HttpResponse(template.render(context, request))
Ejemplo n.º 8
0
def list_by_supervisor(request):
    # get parameters
    response, name = get_variable_with_error(request, 'supervisors', 'name')
    if response is not None:
        return response

    years_back_str = get_variable(request, 'years_back', def_value=str(get_max_years()))
    years_back = int(years_back_str)
    start_year = date.today().year - years_back

    programs = get_variable(request, 'program', as_list=True, def_value=PROGRAM_TYPES)
    if REPORTING_OPTIONS['supervisor.only_phd']:
        programs = ['DP']
    supervisor_type = get_variable(request, 'supervisor_type', as_list=True, def_value=SUPERVISOR_TYPES)
    study_type = get_variable(request, 'study_type', as_list=True, def_value=STUDY_TYPES)
    only_current = get_variable(request, 'only_current', def_value="off") == "on"
    min_months = float(get_variable(request, 'min_months', def_value="-1", blank=False))
    scholarship = str(get_variable(request, 'scholarship', def_value="NO_SCHOLARSHIP"))
    sort_column = get_variable(request, 'sort_column', def_value="supervisor")
    sort_order = get_variable(request, 'sort_order', def_value="asc")
    formattype = get_variable(request, 'format')

    # save parameters
    write_last_parameter(request.user, 'search_by_supervisor.programs', programs)
    write_last_parameter(request.user, 'search_by_supervisor.supervisor_type', supervisor_type)
    write_last_parameter(request.user, 'search_by_supervisor.study_type', study_type)
    write_last_parameter(request.user, 'search_by_supervisor.only_current', only_current)
    write_last_parameter(request.user, 'search_by_supervisor.min_months', min_months)
    write_last_parameter(request.user, 'search_by_supervisor.scholarship', scholarship)
    write_last_parameter(request.user, 'search_by_supervisor.sort_column', sort_column)
    write_last_parameter(request.user, 'search_by_supervisor.sort_order', sort_order)

    sql_active = " and a.active = True " if only_current else ""
    sql = """
        select sd.school, sd.department, a.person, a.student_id, sd.program
        from %s sd, %s a
        where sd.student_id = a.student_id
        and sd.program = a.program
        and a.person = '%s'
        and sd.start_date >= '%s-01-01'
        %s
        and sd.months >= %f
        group by sd.school, sd.department, a.person, a.student_id, sd.program
        order by sd.school, sd.department, a.person, a.student_id, sd.program
        """ % (StudentDates._meta.db_table, AssociatedRole._meta.db_table, escape_quotes(name), start_year, sql_active, min_months)
    cursor = connection.cursor()
    cursor.execute(sql)
    result = dict()
    for row in cursor.fetchall():
        try:
            if len(row[0]) < 1:
                logger.warning("empty school: " + str(row))
                continue
            if row[4] not in programs:
                continue
            add_student(data=result, school=row[0], department=row[1], supervisor=row[2], studentid=row[3],
                        program=row[4], supervisor_type=supervisor_type, study_type=study_type,
                        only_current=only_current, scholarship=scholarship)
        except Exception as ex:
            logger.exception("row=" + str(row))

    # sort
    for school in result:
        school_data = result[school]
        school_data_sorted = sorted(school_data, key=lambda row: row[sort_column], reverse=(sort_order == "desc"))
        result[school] = school_data_sorted

    # CSV or HTML?
    # generate output
    if formattype in ["csv", "xls"]:
        data = list()
        data.append([
            'Faculty/School',
            'Department',
            'Paper',
            'Supervisor',
            'Program',
            'ID',
            'Name',
            'Start date',
            'End date',
            'Months',
            'Full time',
            'Chief supervisor',
            'Status',
            'Scholarship (' + scholarship + ')',
        ])
        for school in result:
            for row in result[school]:
                data.append([
                    school,
                    row['department'],
                    row['paper'],
                    row['supervisor'],
                    row['program'],
                    row['id'],
                    row['name'],
                    row['start_date'],
                    row['end_date'],
                    row['months'],
                    row['full_time'],
                    row['chief_supervisor'],
                    row['status'],
                    row['scholarship'],
                ])
        book = excel.pe.Book({'Supervisor': data})
        response = excel.make_response(book, formattype, file_name="supervisor-{0}.{1}".format(date.today().strftime("%Y-%m-%d"), formattype))
        return response
    else:
        template = loader.get_template('supervisors/list_by_supervisor.html')
        context = applist.template_context('supervisors')
        context['results'] = result
        context['scholarship'] = scholarship
        context['show_scholarship'] = scholarship != NO_SCHOLARSHIP
        form_utils.add_export_urls(request, context, "/supervisors/list-by-supervisor", ['csv', 'xls'])
        return HttpResponse(template.render(context, request))
Ejemplo n.º 9
0
def output(request):
    # get parameters
    response, year = get_variable_with_error(request, 'lpp', 'year')
    if response is not None:
        return response

    response, school = get_variable_with_error(request, 'lpp', 'school', as_list=True)
    if response is not None:
        return response

    response, ptype = get_variable_with_error(request, 'lpp', 'type')
    if response is not None:
        return response
    if ptype not in ["master", "occurrence"]:
        return create_error_response(request, 'lpp', 'Unsupported type: {0}'.format(ptype))

    response, paper = get_variable_with_error(request, 'lpp', 'paper')
    if paper is None:
        paper = ''

    response, columns = get_variable_with_error(request, 'lpp', 'columns', as_list=True)
    if response is not None:
        return response

    response, filter1 = get_variable_with_error(request, 'lpp', 'filter1')
    if filter1 is None:
        filter1 = ''
    response, operator1 = get_variable_with_error(request, 'lpp', 'operator1')
    if operator1 is None:
        operator1 = 'lt'
    response, value1 = get_variable_with_error(request, 'lpp', 'value1')
    if (value1 is None) or (len(value1) == 0):
        value1 = '0'

    formattype = get_variable(request, 'format')

    # save parameters
    write_last_parameter(request.user, 'lpp.year', str(year))
    write_last_parameter(request.user, 'lpp.schools', school)
    write_last_parameter(request.user, 'lpp.type', ptype)
    write_last_parameter(request.user, 'lpp.paper', paper)
    write_last_parameter(request.user, 'lpp.columns', columns)
    write_last_parameter(request.user, 'lpp.filter1', filter1)
    write_last_parameter(request.user, 'lpp.operator1', operator1)
    write_last_parameter(request.user, 'lpp.value1', value1)

    # add paper code
    columns.append("Paper Code")

    # load data from DB
    if len(paper) > 0:
        if ptype == "master":
            where = "AND paper_master_code LIKE '" + paper + "' "
        else:
            where = "AND paper_occurrence LIKE '" + paper + "' "
    elif len(school) > 0:
        where = "AND owning_school_clevel IN ('" + "','".join(school) + "')"
    else:
        where = ""
    cols = "owning_school_clevel,paper_master_code,paper_occurrence,prog_abbr,grade,isdomestic,result_status"
    cursor = connection.cursor()
    sql = """
        SELECT
            {0}
        FROM
            {3}
        WHERE
            year = {1}
            {2}
        ORDER BY
            paper_occurrence ASC
        """.format(cols, year, where, GradeResults._meta.db_table)
    logger.debug(sql)
    cursor.execute(sql)

    # generate CSV
    fd, outname = tempfile.mkstemp(suffix=".csv", prefix="reporting-", dir=tempfile_utils.gettempdir())
    logger.info("Generating CSV: {0}".format(outname))
    with open(outname, 'w') as outfile:
        writer = csv.writer(outfile, quoting=csv.QUOTE_NONNUMERIC)
        writer.writerow(cols.split(","))
        for row in cursor.fetchall():
            writer.writerow(row)
        outfile.flush()
    logger.info("Generated CSV ({0}) exists: ".format(outname, os.path.isfile(outname)))

    # file names
    genname = outname.replace(".csv", "-gen.csv")
    stdoutname = outname.replace(".csv", "-stdout.csv")
    stderrname = outname.replace(".csv", "-stderr.txt")
    tmpfiles = [outname, genname, stdoutname, stderrname]

    # file descriptors
    stdoutfile = open(stdoutname, 'wb')
    stderrfile = open(stderrname, 'wb')
    tmpfds = [fd, stdoutfile, stderrfile]

    # call LPP
    if reporting.settings.PERLLIB is not None:
        env = dict(os.environ)
        env['PERL5LIB'] = reporting.settings.PERLLIB
    else:
        env = None
    params = [
        reporting.settings.PERL,
        reporting.settings.LPP_SCRIPT,
        outname,
        genname,
    ]
    if ptype == "occurrence":
        params.append("-o")
    logger.info("Command: {0}".format(" ".join(params)))
    retval = subprocess.call(
        params,
        stdout=stdoutfile,
        stderr=stderrfile,
        env=env,
    )
    os_utils.close_files(tmpfds)
    if not os.path.isfile(genname):
        msg = 'Failed to execute lpp! exit code: {1}, command: {0}'.format(" ".join(params), retval)
        logger.error(msg)
        os_utils.remove_files(tmpfiles)
        return create_error_response(request, 'lpp', msg)

    # read data
    header = []
    body = []
    display = []
    filter1_idx = -1
    value1_num = float(value1)
    with open(genname, 'r') as infile:
        reader = csv.reader(infile)
        first = True
        for row in reader:
            if first:
                for i, c in enumerate(row):
                    if c in columns:
                        display.append(i)
                    if c == filter1:
                        filter1_idx = i
                header = [row[i] for i in display]
                first = False
            else:
                arow = [row[i] for i in display]
                if filter1_idx > -1:
                    if len(row[filter1_idx]) == 0:
                        continue
                    try:
                        curr1 = float(row[filter1_idx].replace('%', ''))
                    except Exception as e:
                        continue
                    if (operator1 == "lt") and (curr1 >= value1_num):
                        continue
                    if (operator1 == "le") and (curr1 > value1_num):
                        continue
                    if (operator1 == "eq") and (curr1 != value1_num):
                        continue
                    if (operator1 == "ge") and (curr1 < value1_num):
                        continue
                    if (operator1 == "gt") and (curr1 <= value1_num):
                        continue
                body.append(arow)

    # generate output
    if formattype in ["csv", "xls"]:
        book = excel.pe.Book({'LPP': [header] + body})
        response = excel.make_response(book, formattype, file_name="lpp-{0}.{1}".format(year, formattype))
        return response
    else:
        template = loader.get_template('lpp/list.html')
        context = applist.template_context('lpp')
        context['header'] = header
        context['body'] = body
        form_utils.add_export_urls(request, context, "/lpp/output", ['csv', 'xls'])
        response = HttpResponse(template.render(context, request))

    # remove temp files again
    os_utils.remove_files(tmpfiles)

    return response
Ejemplo n.º 10
0
def upload(request):
    # get parameters
    expression = get_variable(request,
                              'expression',
                              def_value=DEFAULT_EXPRESSION)
    casesensitive_matching = (get_variable(request,
                                           'casesensitive_matching',
                                           def_value='off') == 'on')
    exclude_completions = (get_variable(request,
                                        'exclude_completions',
                                        def_value='off') == 'on')

    pdf = request.FILES['datafile']
    newpdf = pdf.temporary_file_path() + "-linked.pdf"
    csv = pdf.temporary_file_path() + "-linked.csv"
    params = [
        reporting.settings.JAVA,
        "-cp",
        reporting.settings.DOC_MOD_LIB + "/*",
        "nz.ac.waikato.cms.doc.HyperLinkGrades",
        pdf.temporary_file_path(),
        expression,
        newpdf,
        csv,
    ]
    if casesensitive_matching:
        params = params + ["--casesensitive", "true"]
    if exclude_completions:
        params = params + ["--nocompletions", "true"]
    logger.info("Command: {0}".format(" ".join(params)))
    retval = subprocess.call(params, )
    if retval != 0:
        msg = 'Failed to execute HyperLinkGrades! exit code: {1}, command: {0}'.format(
            " ".join(params), retval)
        logger.error(msg)
        return create_error_response(request, 'hyperlinkgrades', msg)

    if not os.path.exists(newpdf):
        return create_error_response(request, 'hyperlinkgrades',
                                     'Failed to generate output!')

    write_last_parameter(request.user, 'hyperlinkgrades.last_expression',
                         expression)
    write_last_parameter(request.user,
                         'hyperlinkgrades.last_casesensitive_matching',
                         casesensitive_matching)
    write_last_parameter(request.user,
                         'hyperlinkgrades.last_exclude_completions',
                         exclude_completions)

    data = list()
    with open(newpdf, "rb") as f:
        byte = f.read(1)
        while byte != b"":
            data.append(byte)
            byte = f.read(1)

    # clean up
    if os.path.exists(newpdf):
        os.remove(newpdf)
    if os.path.exists(csv):
        os.remove(csv)

    response = HttpResponse(data, content_type='application/pdf')
    response['Content-Disposition'] = 'attachment; filename="{0}"'.format(
        os.path.basename(pdf.name))
    return response