+++ /dev/null
-# -*- coding: utf-8
-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, Curriculum, CurriculumCourse
-import logging
-
-
-
-class Section(models.Model):
- title = models.CharField(max_length=255, 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)
- 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, null=True, blank=True)
- level = models.ForeignKey(Level)
- title = models.CharField(max_length=255)
- 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, max_length=255)
- html_file = models.FileField(upload_to="catalogue/lesson/html",
- null=True, blank=True, max_length=255)
- package = models.FileField(upload_to="catalogue/lesson/pack",
- null=True, blank=True, max_length=255)
- student_package = models.FileField(upload_to="catalogue/lesson/student_pack",
- null=True, blank=True, max_length=255)
- pdf = models.FileField(upload_to="catalogue/lesson/pdf",
- null=True, blank=True, max_length=255)
- student_pdf = models.FileField(upload_to="catalogue/lesson/student_pdf",
- null=True, blank=True, max_length=255)
-
- class Meta:
- ordering = ['section', 'level', 'order']
-
- def __unicode__(self):
- return self.title
-
- @models.permalink
- def get_absolute_url(self):
- 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'), \
- 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")
-
- 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