X-Git-Url: https://git.mdrn.pl/edumed.git/blobdiff_plain/e76fdcf2a2488b1787c74fe8dccfa38d7ac04c84..54431b5080c621c05714ccfc1accca816aeff2fc:/catalogue/models.py diff --git a/catalogue/models.py b/catalogue/models.py index ea5dff2..f1c5377 100644 --- a/catalogue/models.py +++ b/catalogue/models.py @@ -1,36 +1,92 @@ +from django.core.files import File +from django.core.urlresolvers import reverse from django.db import models +from jsonfield import JSONField from curriculum.models import Level + class Section(models.Model): title = models.CharField(max_length=255, unique=True) slug = models.SlugField(unique=True) order = models.IntegerField() + xml_file = models.FileField(upload_to="catalogue/section/xml", + null=True, blank=True) class Meta: ordering = ['order'] + class IncompleteError(BaseException): + pass + def __unicode__(self): return self.title + def get_absolute_url(self): + return "%s#%s" % (reverse("catalogue_lessons"), self.slug) + + @classmethod + def publish(cls, infile): + from librarian.parser import WLDocument + from django.core.files.base import ContentFile + xml = infile.get_string() + wldoc = WLDocument.from_string(xml) + + try: + lessons = [Lesson.objects.get(slug=part.slug) + for part in wldoc.book_info.parts] + except Lesson.DoesNotExist, e: + raise cls.IncompleteError(part.slug) + + slug = wldoc.book_info.url.slug + try: + section = cls.objects.get(slug=slug) + except cls.DoesNotExist: + section = cls(slug=slug, order=0) + + # Save XML file + section.xml_file.save('%s.xml' % slug, ContentFile(xml), save=False) + section.title = wldoc.book_info.title + section.save() + + section.lesson_set.all().update(section=None) + for i, lesson in enumerate(lessons): + lesson.section = section + lesson.order = i + lesson.save() + + return section + + def syntetic_lesson(self, level): + try: + return self.lesson_set.filter(type='synthetic', level=level)[0] + except IndexError: + return None + + class Lesson(models.Model): - section = models.ForeignKey(Section) + section = models.ForeignKey(Section, null=True, blank=True) level = models.ForeignKey(Level) title = models.CharField(max_length=255) slug = models.SlugField(unique=True) - depth = models.IntegerField() - order = models.IntegerField() + type = models.CharField(max_length=15, db_index=True) + order = models.IntegerField(db_index=True) + dc = JSONField(default='{}') xml_file = models.FileField(upload_to="catalogue/lesson/xml", null=True, blank=True) # FIXME: slug in paths - package = models.FileField(upload_to="catalogue/lesson/package", + html_file = models.FileField(upload_to="catalogue/lesson/html", null=True, blank=True) - student_package = models.FileField(upload_to="catalogue/lesson/student", + package = models.FileField(upload_to="catalogue/lesson/pack", null=True, blank=True) - html_file = models.FileField(upload_to="catalogue/lesson/html", + student_package = models.FileField(upload_to="catalogue/lesson/student_pack", + null=True, blank=True) + pdf = models.FileField(upload_to="catalogue/lesson/pdf", + null=True, blank=True) + student_pdf = models.FileField(upload_to="catalogue/lesson/student_pdf", null=True, blank=True) class Meta: - ordering = ['section', 'level', 'depth', 'order'] + ordering = ['section', 'level', 'order'] def __unicode__(self): return self.title @@ -38,3 +94,121 @@ class Lesson(models.Model): @models.permalink def get_absolute_url(self): return ('catalogue_lesson', [self.slug]) + + @classmethod + def publish(cls, infile): + from librarian.parser import WLDocument + from django.core.files.base import ContentFile + xml = infile.get_string() + wldoc = WLDocument.from_string(xml) + + # Check if not section metadata block. + if wldoc.book_info.parts: + return Section.publish(infile) + + slug = wldoc.book_info.url.slug + try: + lesson = cls.objects.get(slug=slug) + except cls.DoesNotExist: + lesson = cls(slug=slug) + + lesson.attachment_set.all().delete() + for att_name, att_file in infile.attachments.items(): + try: + slug, ext = att_name.rsplit('.', 1) + except ValueError: + slug, ext = att_name, '' + attachment = lesson.attachment_set.create(slug=slug, ext=ext) + attachment.file.save(att_name, ContentFile(att_file.get_string())) + + # Save XML file + lesson.xml_file.save('%s.xml' % slug, ContentFile(xml), save=False) + lesson.title = wldoc.book_info.title + + lesson.level = Level.objects.get(slug=wldoc.book_info.audience) + lesson.order = 0 + lesson.populate_dc() + lesson.type = lesson.dc["type"] + lesson.save() + lesson.build_html() + lesson.build_package() + lesson.build_package(student=True) + return lesson + + 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.save() + + def build_html(self): + from librarian.parser import WLDocument + wldoc = WLDocument.from_file(self.xml_file.path) + html = wldoc.as_html() + self.html_file.save("%s.html" % self.slug, + File(open(html.get_filename()))) + + def add_to_zip(self, zipf, student=False, prefix=''): + zipf.write(self.xml_file.path, + "%spliki-zrodlowe/%s.xml" % (prefix, self.slug)) + pdf = self.student_pdf if student else self.pdf + if pdf: + zipf.write(self.xml_file.path, + "%s%s%s.pdf" % (prefix, self.slug, "_student" if student else "")) + + + 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): + return self.section.syntetic_lesson(self.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 + + +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") + + 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)