Prepared for SP 4-6.
[edumed.git] / catalogue / models.py
index 652f972..4af4810 100644 (file)
@@ -1,8 +1,11 @@
+# -*- 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):
@@ -11,6 +14,14 @@ class Section(models.Model):
     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']
@@ -22,20 +33,22 @@ class Section(models.Model):
         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
-    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)
 
-        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:
@@ -71,7 +84,8 @@ class Lesson(models.Model):
     type = models.CharField(max_length=15, db_index=True)
     order = models.IntegerField(db_index=True)
     dc = JSONField(default='{}')
-    curriculum_courses = models.ManyToManyField(CurriculumCourse)
+    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)
@@ -97,7 +111,7 @@ class Lesson(models.Model):
         return ('catalogue_lesson', [self.slug])
 
     @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()
@@ -105,8 +119,8 @@ class Lesson(models.Model):
 
         # 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)
@@ -118,13 +132,15 @@ class Lesson(models.Model):
         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.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(infile=infile)
-        lesson.build_pdf(student=True, infile=infile)
+        lesson.build_pdf()
         lesson.build_package()
-        lesson.build_package(student=True)
+        if lesson.type != 'project':
+            lesson.build_pdf(student=True)
+            lesson.build_package(student=True)
         return lesson
 
     def populate_dc(self):
@@ -132,18 +148,34 @@ class Lesson(models.Model):
         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=identifier)
+                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)
+        for nagl in wldoc.edoc.findall('.//naglowek_rozdzial'):
+            if (nagl.text or '').strip() == u'Pomysł na lekcję':
+                from lxml import etree
+                self.description = etree.tostring(nagl.getnext(),
+                        method='text', encoding='unicode').strip()
+                self.save()
+                return
+
     def wldocument(self, infile=None):
         from librarian import IOFile
         from librarian.parser import WLDocument
@@ -163,9 +195,11 @@ class Lesson(models.Model):
         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
-        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()
             self.student_pdf.save("%s.pdf" % self.slug,
@@ -176,17 +210,15 @@ class Lesson(models.Model):
                 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))
-            
-        
+            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
@@ -229,6 +261,9 @@ class Lesson(models.Model):
         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)
@@ -250,3 +285,24 @@ 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
+
+    @property
+    def slug(self):
+        return ''
+
+    def add_to_zip(self, *args, **kwargs):
+        pass