X-Git-Url: https://git.mdrn.pl/edumed.git/blobdiff_plain/39844fcccd43fc77f6beb350f5792bb0859135df..ebab887bba6bcfbd335bfb763f7238fc67339962:/catalogue/models.py diff --git a/catalogue/models.py b/catalogue/models.py index 8ff6be4..8e6793f 100644 --- a/catalogue/models.py +++ b/catalogue/models.py @@ -1,41 +1,93 @@ from django.core.files import File +from django.core.urlresolvers import reverse from django.db import models -from curriculum.models import Level +from jsonfield import JSONField +from curriculum.models import Level, Curriculum, CurriculumCourse + class Section(models.Model): title = models.CharField(max_length=255, unique=True) - slug = models.SlugField(unique=True) + slug = models.SlugField(max_length=255, unique=True) order = models.IntegerField() + xml_file = models.FileField(upload_to="catalogue/section/xml", + null=True, blank=True, max_length=255) 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() + slug = models.SlugField(max_length=255, unique=True) + type = models.CharField(max_length=15, db_index=True) + order = models.IntegerField(db_index=True) + dc = JSONField(default='{}') + curriculum_courses = models.ManyToManyField(CurriculumCourse) xml_file = models.FileField(upload_to="catalogue/lesson/xml", - null=True, blank=True) # FIXME: slug in paths + null=True, blank=True, max_length=255) html_file = models.FileField(upload_to="catalogue/lesson/html", - null=True, blank=True) + null=True, blank=True, max_length=255) package = models.FileField(upload_to="catalogue/lesson/pack", - null=True, blank=True) + null=True, blank=True, max_length=255) student_package = models.FileField(upload_to="catalogue/lesson/student_pack", - null=True, blank=True) + null=True, blank=True, max_length=255) pdf = models.FileField(upload_to="catalogue/lesson/pdf", - null=True, blank=True) + null=True, blank=True, max_length=255) student_pdf = models.FileField(upload_to="catalogue/lesson/student_pdf", - null=True, blank=True) + null=True, blank=True, max_length=255) class Meta: - ordering = ['section', 'level', 'depth', 'order'] + ordering = ['section', 'level', 'order'] def __unicode__(self): return self.title @@ -48,41 +100,149 @@ class Lesson(models.Model): def publish(cls, infile): from librarian.parser import WLDocument from django.core.files.base import ContentFile - # infile should be IOFile, now it's a regular file - xml = infile.read() + xml = infile.get_string() wldoc = WLDocument.from_string(xml) - slug = wldoc.book_info.url.slug + # 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) + lesson.attachment_set.all().delete() except cls.DoesNotExist: - lesson = cls(slug=slug) + lesson = cls(slug=slug, order=0) # Save XML file lesson.xml_file.save('%s.xml' % slug, ContentFile(xml), save=False) lesson.title = wldoc.book_info.title - #book.extra_info = wldoc.book_info.to_dict() - - # FIXME: - #lesson.level = Level.objects.get(slug=wldoc.book_info.audience) - lesson.level = Level.objects.get(name=wldoc.book_info.audience) - # TODO: no xml data? - lesson.section = Section.objects.all()[0] - lesson.order = 1 - lesson.depth = 1 - - # Build HTML. - html = wldoc.as_html() - lesson.html_file.save("%s.html" % slug, - File(open(html.get_filename())), save=False) - lesson.save() + + lesson.level = Level.objects.get(slug=wldoc.book_info.audience) + lesson.populate_dc() + lesson.build_html(infile=infile) + lesson.build_pdf(infile=infile) + lesson.build_pdf(student=True, infile=infile) + 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.type = self.dc["type"] + self.save() + + courses = set() + for identifier in wldoc.book_info.curriculum: + try: + curr = Curriculum.objects.get(identifier=identifier) + except Curriculum.DoesNotExist: + pass + else: + courses.add(curr.course) + self.curriculum_courses = courses + + 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, infile=None): + from .publish import PdfFormat + wldoc = self.wldocument(infile) + 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=''): + 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(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)) + + + + 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 + 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) @@ -90,3 +250,17 @@ class Part(models.Model): 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