# -*- coding: utf-8 import re from django.core.urlresolvers import reverse from django.db import models from django.utils.translation import ugettext_lazy as _, get_language from fnpdjango.storage import BofhFileSystemStorage from fnpdjango.utils.models.translation import add_translatable bofh_storage = BofhFileSystemStorage() class Section(models.Model): slug = models.SlugField(_('slug')) order = models.IntegerField(_('order')) class Meta: ordering = ['order'] verbose_name = _('section') verbose_name_plural = _('sections') def __unicode__(self): return self.name def get_absolute_url(self): return "%s?s=%d" % (reverse("curriculum"), self.pk) def url_for_level(self, level): return "%s?s=%d&level=%s&d=1" % (reverse("curriculum"), self.pk, level.slug) add_translatable(Section, { 'name': models.CharField(_('name'), max_length=255, default = '') }) class Competence(models.Model): section = models.ForeignKey(Section) slug = models.SlugField(_('slug')) order = models.IntegerField(_('order')) class Meta: ordering = ['section', 'order'] verbose_name = _('competence') verbose_name_plural = _('competences') def __unicode__(self): return self.name def get_absolute_url(self): return "%s?c=%d" % (reverse("curriculum"), self.pk) def for_level(self, level): return self.competencelevel_set.get(level=level) def url_for_level(self, level): return self.for_level(level).get_absolute_url() @classmethod def from_text(cls, text): """Tries to return a Competence or a Section.""" parts = re.split(ur'[-\u2013]', text, 1) lookup_field_name = 'name_%s__iexact' % get_language() if len(parts) == 1: return Section.objects.get(**{lookup_field_name: text.strip()}) else: return cls.objects.get(**{lookup_field_name: parts[1].strip()}) add_translatable(Competence, { 'name': models.CharField(_('name'), max_length=255, default = '') }) class Level(models.Model): slug = models.CharField(_('slug'), max_length=255, unique=True) meta_name = models.CharField(_('meta name'), max_length=255, unique=True) order = models.IntegerField(_('order')) package = models.FileField(upload_to=lambda i, f: "curriculum/pack/edukacjamedialna_%s.zip" % i.slug, null=True, blank=True, max_length=255, storage=bofh_storage) student_package = models.FileField(upload_to=lambda i, f: "curriculum/pack/edukacjamedialna_%s_uczen.zip" % i.slug, null=True, blank=True, max_length=255, storage=bofh_storage) class Meta: ordering = ['order'] verbose_name = _('educational level') verbose_name_plural = _('educational levels') def __unicode__(self): return self.name def length_course(self): return self.lesson_set.filter(type='course').count() def length_synthetic(self): return self.lesson_set.filter(type='synthetic').count() def build_package(self, student): from StringIO import StringIO import zipfile from django.core.files.base import ContentFile from catalogue.templatetags.catalogue_tags import level_box from catalogue.models import Lesson buff = StringIO() zipf = zipfile.ZipFile(buff, 'w', zipfile.ZIP_STORED) lessons = level_box(self)['lessons'] for i, lesson in enumerate(lessons['synthetic']): prefix = 'Skrocony kurs/%d %s/' % (i, lesson.slug) lesson.add_to_zip(zipf, student, prefix) for c, (section, clessons) in enumerate(lessons['course'].items()): for i, lesson in enumerate(clessons): prefix = 'Pelny kurs/%d %s/%d %s/' % (c, section.slug, i, lesson.slug) lesson.add_to_zip(zipf, student, prefix) for i, lesson in enumerate(lessons['project']): prefix = 'Projekty/%d %s/' % (i, lesson.slug) lesson.add_to_zip(zipf, student, prefix) # Add all appendix lessons, from all levels. for lesson in Lesson.objects.exclude(type__in=('synthetic', 'course', 'project')): prefix = '%s/' % lesson.slug lesson.add_to_zip(zipf, student, prefix) zipf.close() fieldname = "student_package" if student else "package" getattr(self, fieldname).save(None, ContentFile(buff.getvalue())) def build_packages(self): self.build_package(False) self.build_package(True) add_translatable(Level, { 'name': models.CharField(_('name'), max_length=255, default = ''), 'group': models.CharField(_('group'), max_length=255, default = '') }) class CompetenceLevel(models.Model): competence = models.ForeignKey(Competence) level = models.ForeignKey(Level) class Meta: ordering = ['competence', 'level'] verbose_name = _('competence on level') verbose_name_plural = _('competences on levels') def __unicode__(self): return u"%s/%s" % (self.competence, self.level) def get_absolute_url(self): return "%s?c=%d&level=%s&d=1" % (reverse("curriculum"), self.competence.pk, self.level.slug) add_translatable(CompetenceLevel, { 'description': models.TextField(_('description'), default = '') }) class CurriculumLevel(models.Model): title = models.CharField(max_length=16, db_index=True) class Meta: verbose_name = _("curriculum level") verbose_name_plural = _("curriculum levels") def __unicode__(self): return self.title class CurriculumCourse(models.Model): title = models.CharField(max_length=255) accusative = models.CharField(max_length=255) slug = models.CharField(max_length=255, db_index=True) class Meta: verbose_name = _("curriculum course") verbose_name_plural = _("curriculum courses") ordering = ['slug'] def __unicode__(self): return self.title class Curriculum(models.Model): """Official curriculum.""" TYPES = {'c': u'Cele kształcenia', 't': u'Treści nauczania'} identifier = models.CharField(max_length=255, db_index=True) title = models.CharField(max_length=255) course = models.ForeignKey(CurriculumCourse) level = models.ForeignKey(CurriculumLevel) type = models.CharField(max_length=16, choices=TYPES.items()) class Meta: verbose_name = _("curriculum item") verbose_name_plural = _("curriculum items") def __unicode__(self): return self.identifier @classmethod def from_text(cls, identifier, title): m = re.match(r"^\d+/(?P[^/]+)/(?P[^/]+)/" "(?P(?:%s))[^/]+(?P/roz)?" % "|".join(cls.TYPES), identifier) assert m is not None, "Curriculum identifier doesn't match template." level, created = CurriculumLevel.objects.get_or_create( title=m.group('level')) def_title = m.group('course').title() course, created = CurriculumCourse.objects.get_or_create( slug=m.group('course').lower(), defaults={ 'title': def_title, 'accusative': def_title, }) type_ = m.group('type') if m.group('roz'): title += " (zakres rozszerzony)" try: curr = cls.objects.get(identifier=identifier) except cls.DoesNotExist: curr = cls(identifier=identifier) curr.title = title curr.course = course curr.level = level curr.type = type_ curr.save() return curr