fix for non-sectioned lessons nav

[edumed.git] / catalogue / models.py

diff --git a/catalogue/models.py b/catalogue/models.py
index ea1063e..652f972 100644 (file)
--- a/catalogue/models.py
+++ b/catalogue/models.py
@@ -144,26 +144,28 @@ class Lesson(models.Model):
                 courses.add(curr.course)
         self.curriculum_courses = courses
 
-    def build_html(self, infile=None):
+    def wldocument(self, infile=None):
+        from librarian import IOFile
         from librarian.parser import WLDocument
-        from .publish import HtmlFormat, OrmDocProvider
+        from .publish import OrmDocProvider
 
         if infile is None:
-            wldoc = WLDocument.from_file(self.xml_file.path, provider=OrmDocProvider)
-        else:
-            wldoc = WLDocument(infile, provider=OrmDocProvider())
+            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 librarian.parser import WLDocument
-        from .publish import PdfFormat, OrmDocProvider
-
-        if infile is None:
-            wldoc = WLDocument.from_file(self.xml_file.path, provider=OrmDocProvider)
-        else:
-            wldoc = WLDocument(infile, provider=OrmDocProvider())
+        from .publish import PdfFormat
+        wldoc = self.wldocument(infile)
         if student:
             pdf = PdfFormat(wldoc).build()
             self.student_pdf.save("%s.pdf" % self.slug,
@@ -200,8 +202,15 @@ class Lesson(models.Model):
             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: