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Viewing changes to src/schooltool/niepa/app/browser/report_card.py

  • Committer: Alan Elkner
  • Date: 2010-10-24 18:35:08 UTC
  • Revision ID: aelkner@ubuntu-20101024183508-a9x6cah2nf5sfkzc
created report card

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src/schooltool/niepa/app/browser/report_card.py
 
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#
 
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# SchoolTool - common information systems platform for school administration
 
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# Copyright (c) 2010 Shuttleworth Foundation
 
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#
 
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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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#
 
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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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#
 
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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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
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#
 
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"""
 
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SchoolTool Niepa report card view.
 
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"""
 
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from decimal import Decimal
 
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from reportlab.platypus.flowables import Flowable
 
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from zope.browserpage.viewpagetemplatefile import ViewPageTemplateFile
 
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from zope.publisher.browser import BrowserView
 
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from zope.security.proxy import removeSecurityProxy
 
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from zope.traversing.browser.absoluteurl import absoluteURL
 
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from schooltool.app.browser.report import ReportPDFView
 
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from schooltool.app.interfaces import ISchoolToolApplication
 
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from schooltool.course.interfaces import IInstructor, ISectionContainer
 
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from schooltool.group.interfaces import IGroupContainer
 
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from schooltool.schoolyear.interfaces import ISchoolYearContainer
 
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from schooltool.schoolyear.interfaces import ISchoolYear
 
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from schooltool.term.interfaces import ITerm
 
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from schooltool.gradebook.interfaces import IActivities
 
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from schooltool.requirement.interfaces import IEvaluations
 
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from schooltool.requirement.scoresystem import UNSCORED
 
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from schooltool.niepa import NiepaMessage as _
 
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class RotatedText(Flowable):
 
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    def __init__(self, text):
 
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        self.text = text
 
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    def draw(self):
 
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        self.canv.saveState()
 
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        canvas = self.canv
 
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        canvas.rotate(90)
 
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        canvas.drawString(5, -10, self.text)
 
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        self.canv.restoreState()
 
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    def wrap(self,aW,aH):
 
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        canv = self.canv
 
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        return canv._leading, canv.stringWidth(self.text)
 
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class ReportCardPDFView(ReportPDFView):
 
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    """A view for the term's report card pdf"""
 
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    template=ViewPageTemplateFile('templates/report_card_pdf.pt')
 
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    per_page = 26
 
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    def __call__(self):
 
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        self.term = removeSecurityProxy(self.context)
 
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        self.year = ISchoolYear(self.term)
 
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        terms = tuple(self.year.values())
 
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        this_index = terms.index(self.term)
 
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        courses = set()
 
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        for term in terms:
 
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            for section in ISectionContainer(term).values():
 
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                courses.add(tuple(section.courses))
 
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        courses = list(courses)
 
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        course_accums = {}
 
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        for course in courses:
 
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            scores = course_accums[course] = []
 
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            for index in range(this_index + 1):
 
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                term = terms[index]
 
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                for section in ISectionContainer(term).values():
 
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                    if tuple(section.courses) == course:
 
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                        break
 
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                else:
 
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                    section = None
 
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                scores.append(self.getSectionScores(section, term))
 
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        self.data = course_accums
 
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        return super(ReportCardPDFView, self).__call__()
 
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    def getSectionScores(self, section, term):
 
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        results = {}
 
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        activities = IActivities(section)
 
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        key = '%s_%s' % (self.year.__name__, term.__name__)
 
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        worksheet = activities[key]
 
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        for student in section.members:
 
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            scores = results[student] = []
 
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            evaluations = IEvaluations(student)
 
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            for activity in worksheet.values():
 
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                ev = evaluations.get(activity, None)
 
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                if ev is not None and ev.value is not UNSCORED:
 
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                    value = ev.value
 
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                else:
 
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                    value = Decimal('0')
 
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                scores.append(value)
 
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        return results
 
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    def pages(self):
 
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        results = []
 
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        courses_tuple = [(', '.join([c.title for c in course]), course)
 
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                         for course in self.data]
 
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        for title, course in sorted(courses_tuple):
 
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            scores = self.data[course]
 
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            students = [(student.title, student, scores[-1][student])
 
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                        for student in scores[-1]]
 
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            rows, index = [], 0
 
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            for student_title, student, student_scores in sorted(students):
 
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                ca1 = student_scores[0]
 
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                ca2 = student_scores[1]
 
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                ca3 = student_scores[2]
 
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                ca_total = ca1 + ca2 + ca3
 
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                exam = student_scores[3]
 
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                total = ca_total + exam
 
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                if len(scores) == 1:
 
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                    before = ''
 
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                    cumulative = total
 
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                else:
 
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                    before = Decimal('0')
 
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                    for prev_index in range(len(scores) - 1):
 
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                        for stu, stu_scores in scores[prev_index].items():
 
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                            if stu == student:
 
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                                before += sum(stu_scores)
 
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                    if len(scores) == 2:
 
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                        cumulative = int(round((total + before) / 2))
 
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                    else:
 
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                        cumulative = int(round((total + before) / 3))
 
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                        before = int(round(before / 2))
 
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                index += 1
 
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                grade, remarks = '', ''
 
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                row = {
 
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                    'index': index,
 
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                    'name': student_title,
 
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                    'ca_test1': ca1,
 
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                    'ca_test2': ca2,
 
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                    'ca_test3': ca3,
 
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                    'ca_total': ca_total,
 
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                    'exam': exam,
 
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                    'total': total,
 
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                    'before': before,
 
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                    'cumulative': cumulative,
 
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                    'grade': grade,
 
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                    'remarks': remarks,
 
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                    }
 
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                rows.append(row)
 
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            class_average = Decimal('0')
 
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            for row in rows:
 
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                class_average += Decimal(row['cumulative'])
 
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            class_average = int(round(class_average / len(rows)))
 
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            for row in rows:
 
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                row['class_average'] = class_average
 
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            row_tuples = [(row['cumulative'], row) for row in rows]
 
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            row_tuples = reversed(sorted(row_tuples))
 
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            for index, (cumulative, row) in enumerate(row_tuples):
 
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                row['position'] = index + 1
 
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177
            while rows:
 
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                page_rows = rows[:self.per_page]
 
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                result = {
 
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                    'course': title,
 
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                    'term': self.term.title,
 
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                    'rows': page_rows,
 
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                    'heights': '0.9cm,3.5cm' + ',0.7cm' * (len(page_rows)),
 
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                    }
 
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                results.append(result)
 
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                rows = rows[self.per_page:]
 
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        return results
 
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    def widths(self):
 
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        return '0.8cm,5cm' + ',0.8cm' * 11 + ',4cm'
 
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