weasyprint support - in progress

[edumed.git] / catalogue / models.py

diff --git a/catalogue/models.py b/catalogue/models.py
index e20d58c..c5ed66c 100644 (file)
--- a/catalogue/models.py
+++ b/catalogue/models.py
@@ -1,16 +1,32 @@
+# -*- coding: utf-8
+from django.conf import settings

 from django.core.files import File
 from django.core.urlresolvers import reverse
 from django.db import models
 from jsonfield import JSONField
 from django.core.files import File
 from django.core.urlresolvers import reverse
 from django.db import models
 from jsonfield import JSONField

+from fnpdjango.storage import BofhFileSystemStorage
+

 from curriculum.models import Level, Curriculum, CurriculumCourse
 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(max_length=255, unique=True)
     order = models.IntegerField()
 
 
 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)
+    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 Meta:
         ordering = ['order']


@@ -22,20 +38,22 @@ class Section(models.Model):
         return self.title
 
     def get_absolute_url(self):
         return self.title
 
     def get_absolute_url(self):

-        return "%s#%s" % (reverse("catalogue_lessons"), self.slug)
+        return "%s#gimnazjum_%s" % (reverse("catalogue_lessons"), self.slug)

 
     @classmethod
 
     @classmethod

-    def publish(cls, infile):
+    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)
 
         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)
+        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:
 
         slug = wldoc.book_info.url.slug
         try:


@@ -71,20 +89,30 @@ class Lesson(models.Model):
     type = models.CharField(max_length=15, db_index=True)
     order = models.IntegerField(db_index=True)
     dc = JSONField(default='{}')
     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, 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)
+    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, 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)
+    weasy_pdf = models.FileField(
+        upload_to="catalogue/lesson/weasy",
+        null=True, blank=True, max_length=255, storage=bofh_storage)

 
     class Meta:
         ordering = ['section', 'level', 'order']
 
     class Meta:
         ordering = ['section', 'level', 'order']


@@ -94,19 +122,18 @@ class Lesson(models.Model):
 
     @models.permalink
     def get_absolute_url(self):
 
     @models.permalink
     def get_absolute_url(self):

-        return ('catalogue_lesson', [self.slug])
+        return 'catalogue_lesson', [self.slug]

 
     @classmethod
 
     @classmethod

-    def publish(cls, infile):
+    def publish(cls, infile, ignore_incomplete=False, repackage_level=False):

         from librarian.parser import WLDocument
         from django.core.files.base import ContentFile
         from librarian.parser import WLDocument
         from django.core.files.base import ContentFile

-        xml = infile.get_string()
-        wldoc = WLDocument.from_string(xml)
+        wldoc = WLDocument(infile)

 
         # Check if not section metadata block.
         if wldoc.book_info.parts:
 
         # Check if not section metadata block.
         if wldoc.book_info.parts:

-            return Section.publish(infile)
-        
+            return Section.publish(infile, ignore_incomplete=ignore_incomplete)
+

         slug = wldoc.book_info.url.slug
         try:
             lesson = cls.objects.get(slug=slug)
         slug = wldoc.book_info.url.slug
         try:
             lesson = cls.objects.get(slug=slug)


@@ -115,35 +142,73 @@ class Lesson(models.Model):
             lesson = cls(slug=slug, order=0)
 
         # Save XML file
             lesson = cls(slug=slug, order=0)
 
         # Save XML file

-        lesson.xml_file.save('%s.xml' % slug, ContentFile(xml), save=False)
+        lesson.xml_file.save('%s.xml' % slug, ContentFile(infile.get_string()), save=False)

         lesson.title = wldoc.book_info.title
 
         lesson.title = wldoc.book_info.title
 

-        lesson.level = Level.objects.get(slug=wldoc.book_info.audience)
+        lesson.level = Level.objects.get(meta_name=wldoc.book_info.audience)

         lesson.populate_dc()
         lesson.populate_dc()

+        lesson.populate_description(wldoc=wldoc)

         lesson.build_html(infile=infile)
         lesson.build_html(infile=infile)

-        lesson.build_pdf(infile=infile)
-        lesson.build_pdf(student=True, infile=infile)
+        lesson.build_pdf()

         lesson.build_package()
         lesson.build_package()

-        lesson.build_package(student=True)
+        if lesson.type != 'project':
+            lesson.build_pdf(student=True)
+            lesson.build_package(student=True)
+        if repackage_level:
+            lesson.level.build_packages()

         return lesson
 
         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, repackage_level=repackage_level)
+

     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"]
     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:
         self.save()
 
         courses = set()
         for identifier in wldoc.book_info.curriculum:

+            identifier = (identifier or "").replace(' ', '')
+            if not identifier:
+                continue

             try:
             try:

-                curr = Curriculum.objects.get(identifier=identifier)
+                curr = Curriculum.objects.get(identifier__iexact=identifier)

             except Curriculum.DoesNotExist:
             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
 
                 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
     def wldocument(self, infile=None):
         from librarian import IOFile
         from librarian.parser import WLDocument


@@ -160,33 +225,33 @@ class Lesson(models.Model):
         from .publish import HtmlFormat
         wldoc = self.wldocument(infile)
         html = HtmlFormat(wldoc).build()
         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())))
+        self.html_file.save("%s.html" % self.slug, File(open(html.get_filename())))

 
 

-    def build_pdf(self, student=False, infile=None):
+    def build_pdf(self, student=False):

         from .publish import PdfFormat
         from .publish import PdfFormat

-        wldoc = self.wldocument(infile)
+        # PDF uses document with attachments already saved as media,
+        # otherwise sorl.thumbnail complains about SuspiciousOperations.
+        wldoc = self.wldocument()

         if student:
             pdf = PdfFormat(wldoc).build()
         if student:
             pdf = PdfFormat(wldoc).build()

-            self.student_pdf.save("%s.pdf" % self.slug,
-                File(open(pdf.get_filename())))
+            self.student_pdf.save("%s.pdf" % self.slug, File(open(pdf.get_filename())))

         else:
             pdf = PdfFormat(wldoc, teacher=True).build()
         else:
             pdf = PdfFormat(wldoc, teacher=True).build()

-            self.pdf.save("%s.pdf" % self.slug,
-                File(open(pdf.get_filename())))
+            self.pdf.save("%s.pdf" % self.slug, File(open(pdf.get_filename())))
+
+    def build_weasy_pdf(self):
+        from .publish import WeasyFormat
+        wldoc = self.wldocument()
+        pdf = WeasyFormat(wldoc, media_root=settings.MEDIA_ROOT).build()
+        self.weasy_pdf.save("%s.pdf" % self.slug, File(open(pdf.get_filename())))

 
     def add_to_zip(self, zipf, student=False, prefix=''):
 
     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:
         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(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
 
     def build_package(self, student=False):
         from StringIO import StringIO


@@ -202,10 +267,20 @@ class Lesson(models.Model):
             ContentFile(buff.getvalue()))
 
     def get_syntetic(self):
             ContentFile(buff.getvalue()))
 
     def get_syntetic(self):

+        if self.section is None:
+            return None

         return self.section.syntetic_lesson(self.level)
 
         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):
     def get_previous(self):

-        if self.section is None: return None
+        if self.section is None:
+            return None

         try:
             return self.section.lesson_set.filter(
                 type=self.type, level=self.level,
         try:
             return self.section.lesson_set.filter(
                 type=self.type, level=self.level,


@@ -214,7 +289,8 @@ class Lesson(models.Model):
             return None
 
     def get_next(self):
             return None
 
     def get_next(self):

-        if self.section is None: return None
+        if self.section is None:
+            return None

         try:
             return self.section.lesson_set.filter(
                 type=self.type, level=self.level,
         try:
             return self.section.lesson_set.filter(
                 type=self.type, level=self.level,


@@ -222,12 +298,15 @@ class Lesson(models.Model):
         except IndexError:
             return None
 
         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)
 
 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")
+    file = models.FileField(upload_to="catalogue/attachment", storage=bofh_storage, max_length=255)

 
     class Meta:
         ordering = ['slug', 'ext']
 
     class Meta:
         ordering = ['slug', 'ext']


@@ -239,7 +318,26 @@ class Attachment(models.Model):
 
 class Part(models.Model):
     lesson = models.ForeignKey(Lesson)
 
 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)
+    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