X-Git-Url: https://git.mdrn.pl/edumed.git/blobdiff_plain/e76fdcf2a2488b1787c74fe8dccfa38d7ac04c84..37b7e864c44294c543e4af7ab374625197f5e539:/catalogue/models.py?ds=inline diff --git a/catalogue/models.py b/catalogue/models.py index ea5dff2..ee07651 100644 --- a/catalogue/models.py +++ b/catalogue/models.py @@ -1,40 +1,318 @@ +# -*- coding: utf-8 +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 fnpdjango.storage import BofhFileSystemStorage +from curriculum.models import Level, Curriculum, CurriculumCourse +import logging + +bofh_storage = BofhFileSystemStorage() + 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, + storage=bofh_storage) + image = models.ImageField(upload_to="catalogue/section/image", null=True, blank=True) + + pic = models.ImageField(upload_to="catalogue/section/pic", null=True, blank=True) + pic_attribution = models.CharField(max_length=255, null=True, blank=True) + pic_src = models.URLField(null=True, blank=True) + + summary = models.TextField(blank=True, null=True) class Meta: ordering = ['order'] + class IncompleteError(BaseException): + pass + def __unicode__(self): return self.title + def get_absolute_url(self): + return "%s#gimnazjum_%s" % (reverse("catalogue_lessons"), self.slug) + + @classmethod + def publish(cls, infile, ignore_incomplete=False): + from librarian.parser import WLDocument + from django.core.files.base import ContentFile + xml = infile.get_string() + wldoc = WLDocument.from_string(xml) + + lessons = [] + for part in wldoc.book_info.parts: + try: + lessons.append(Lesson.objects.get(slug=part.slug)) + except Lesson.DoesNotExist, e: + if not ignore_incomplete: + 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, blank=True) + description = models.TextField(null=True, blank=True) - 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", - null=True, blank=True) - student_package = models.FileField(upload_to="catalogue/lesson/student", - null=True, blank=True) - html_file = models.FileField(upload_to="catalogue/lesson/html", - null=True, blank=True) + xml_file = models.FileField( + upload_to="catalogue/lesson/xml", + null=True, blank=True, max_length=255, storage=bofh_storage) + html_file = models.FileField( + upload_to="catalogue/lesson/html", + null=True, blank=True, max_length=255, storage=bofh_storage) + package = models.FileField( + upload_to="catalogue/lesson/pack", + null=True, blank=True, max_length=255, storage=bofh_storage) + student_package = models.FileField( + upload_to="catalogue/lesson/student_pack", + null=True, blank=True, max_length=255, storage=bofh_storage) + pdf = models.FileField( + upload_to="catalogue/lesson/pdf", + null=True, blank=True, max_length=255, storage=bofh_storage) + student_pdf = models.FileField( + upload_to="catalogue/lesson/student_pdf", + null=True, blank=True, max_length=255, storage=bofh_storage) class Meta: - ordering = ['section', 'level', 'depth', 'order'] + ordering = ['section', 'level', 'order'] def __unicode__(self): return self.title @models.permalink def get_absolute_url(self): - return ('catalogue_lesson', [self.slug]) + 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 + xml = infile.get_string() + wldoc = WLDocument.from_string(xml) + + # 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(xml), 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 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 'internet' in self.dc.get('requires', []) + + +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