+ return 'catalogue_lesson', [self.slug]
+
+ @classmethod
+ def publish(cls, infile, ignore_incomplete=False):
+ from librarian.parser import WLDocument
+ from django.core.files.base import ContentFile
+ wldoc = WLDocument(infile)
+
+ # Check if not section metadata block.
+ if wldoc.book_info.parts:
+ return Section.publish(infile, ignore_incomplete=ignore_incomplete)
+
+ slug = wldoc.book_info.url.slug
+ try:
+ lesson = cls.objects.get(slug=slug)
+ lesson.attachment_set.all().delete()
+ except cls.DoesNotExist:
+ lesson = cls(slug=slug, order=0)
+
+ # Save XML file
+ lesson.xml_file.save('%s.xml' % slug, ContentFile(infile.get_string()), save=False)
+ lesson.title = wldoc.book_info.title
+
+ lesson.level = Level.objects.get(meta_name=wldoc.book_info.audience)
+ lesson.populate_dc()
+ lesson.populate_description(wldoc=wldoc)
+ lesson.build_html(infile=infile)
+ lesson.build_pdf()
+ lesson.build_package()
+ if lesson.type != 'project':
+ lesson.build_pdf(student=True)
+ lesson.build_package(student=True)
+ return lesson
+
+ def republish(self, repackage_level=True, attachments=None):
+ from librarian import IOFile
+ import os.path
+ from django.conf import settings
+ if attachments is None:
+ attachments = {}
+ for attachment in self.attachment_set.all():
+ full_name = os.path.join(settings.MEDIA_ROOT, attachment.file.name)
+ f = IOFile.from_filename(full_name)
+ attachments['%s.%s' % (attachment.slug, attachment.ext)] = f
+ infile = IOFile.from_filename(self.xml_file.path, attachments=attachments)
+ Lesson.publish(infile)
+ if repackage_level:
+ self.level.build_packages()
+
+ def populate_dc(self):
+ from librarian.parser import WLDocument
+ wldoc = WLDocument.from_file(self.xml_file.path)
+ self.dc = wldoc.book_info.to_dict()
+ self.type = self.dc["type"]
+ assert self.type in ('appendix', 'course', 'synthetic', 'project', 'added', 'added-var'), \
+ u"Unknown lesson type: %s" % self.type
+ self.save()
+
+ courses = set()
+ for identifier in wldoc.book_info.curriculum:
+ identifier = (identifier or "").replace(' ', '')
+ if not identifier:
+ continue
+ try:
+ curr = Curriculum.objects.get(identifier__iexact=identifier)
+ except Curriculum.DoesNotExist:
+ logging.warn('Unknown curriculum course %s in lesson %s' % (identifier, self.slug))
+ pass
+ else:
+ courses.add(curr.course)
+ self.curriculum_courses = courses
+
+ def populate_description(self, wldoc=None, infile=None):
+ if wldoc is None:
+ wldoc = self.wldocument(infile)
+ if self.type == 'project':
+ lookup = u'Zadanie'
+ else:
+ lookup = u'Pomysł na lekcję'
+ for header in wldoc.edoc.findall('.//naglowek_rozdzial'):
+ if (header.text or '').strip() == lookup:
+ from lxml import etree
+ self.description = etree.tostring(
+ header.getnext(), method='text', encoding='unicode').strip()
+ self.save()
+ return
+
+ def wldocument(self, infile=None):
+ from librarian import IOFile
+ from librarian.parser import WLDocument
+ from .publish import OrmDocProvider
+
+ if infile is None:
+ infile = IOFile.from_filename(self.xml_file.path)
+ for att in self.attachment_set.all():
+ infile.attachments["%s.%s" % (att.slug, att.ext)] = \
+ IOFile.from_filename(att.file.path)
+ return WLDocument(infile, provider=OrmDocProvider())
+
+ def build_html(self, infile=None):
+ from .publish import HtmlFormat
+ wldoc = self.wldocument(infile)
+ html = HtmlFormat(wldoc).build()
+ self.html_file.save("%s.html" % self.slug, File(open(html.get_filename())))
+
+ def build_pdf(self, student=False):
+ from .publish import PdfFormat
+ # PDF uses document with attachments already saved as media,
+ # otherwise sorl.thumbnail complains about SuspiciousOperations.
+ wldoc = self.wldocument()
+ if student:
+ pdf = PdfFormat(wldoc).build()
+ self.student_pdf.save("%s.pdf" % self.slug, File(open(pdf.get_filename())))
+ else:
+ pdf = PdfFormat(wldoc, teacher=True).build()
+ self.pdf.save("%s.pdf" % self.slug, File(open(pdf.get_filename())))
+
+ def add_to_zip(self, zipf, student=False, prefix=''):
+ pdf = self.student_pdf if student else self.pdf
+ if pdf:
+ zipf.write(pdf.path, "%s%s%s.pdf" % (prefix, self.slug, "_student" if student else ""))
+ for attachment in self.attachment_set.all():
+ zipf.write(attachment.file.path, u"%smaterialy/%s.%s" % (prefix, attachment.slug, attachment.ext))
+ zipf.write(self.xml_file.path, "%spliki-zrodlowe/%s.xml" % (prefix, self.slug))
+
+ def build_package(self, student=False):
+ from StringIO import StringIO
+ import zipfile
+ from django.core.files.base import ContentFile
+ buff = StringIO()
+ zipf = zipfile.ZipFile(buff, 'w', zipfile.ZIP_STORED)
+ self.add_to_zip(zipf, student)
+ zipf.close()
+ fieldname = "student_package" if student else "package"
+ getattr(self, fieldname).save(
+ "%s%s.zip" % (self.slug, "_student" if student else ""),
+ ContentFile(buff.getvalue()))
+
+ def get_syntetic(self):
+ if self.section is None:
+ return None
+ return self.section.syntetic_lesson(self.level)
+
+ def get_other_level(self):
+ if self.section is None:
+ return None
+ other_levels = self.section.lesson_set.exclude(level=self.level)
+ if other_levels.exists():
+ return other_levels[0].level
+
+ def get_previous(self):
+ if self.section is None:
+ return None
+ try:
+ return self.section.lesson_set.filter(
+ type=self.type, level=self.level,
+ order__lt=self.order).order_by('-order')[0]
+ except IndexError:
+ return None
+
+ def get_next(self):
+ if self.section is None:
+ return None
+ try:
+ return self.section.lesson_set.filter(
+ type=self.type, level=self.level,
+ order__gt=self.order).order_by('order')[0]
+ except IndexError:
+ return None
+
+ def requires_internet(self):
+ return any(requirement in self.dc.get('requires', []) for requirement in ('internet', 'Internet'))
+
+
+class Attachment(models.Model):
+ slug = models.CharField(max_length=255)
+ ext = models.CharField(max_length=15)
+ lesson = models.ForeignKey(Lesson)
+ file = models.FileField(upload_to="catalogue/attachment", storage=bofh_storage)
+
+ class Meta:
+ ordering = ['slug', 'ext']
+ unique_together = ['lesson', 'slug', 'ext']
+
+ def __unicode__(self):
+ return "%s.%s" % (self.slug, self.ext)
+
+
+class Part(models.Model):
+ lesson = models.ForeignKey(Lesson)
+ pdf = models.FileField(upload_to="catalogue/part/pdf", null=True, blank=True)
+ student_pdf = models.FileField(upload_to="catalogue/part/student_pdf", null=True, blank=True)
+
+
+class LessonStub(models.Model):
+ section = models.ForeignKey(Section, null=True, blank=True)
+ level = models.ForeignKey(Level)
+ title = models.CharField(max_length=255)
+ type = models.CharField(max_length=15, db_index=True)
+ order = models.IntegerField(db_index=True)
+
+ class Meta:
+ ordering = ['section', 'level', 'order']
+
+ def __unicode__(self):
+ return self.title
+
+ @property
+ def slug(self):
+ return ''
+
+ def add_to_zip(self, *args, **kwargs):
+ pass
fnp / edumed.git / blobdiff