Fixed bug in table of contents rendering in book reader.

[wolnelektury.git] / apps / catalogue / models.py

diff --git a/apps/catalogue/models.py b/apps/catalogue/models.py
index db19434..9640e7f 100644 (file)
--- a/apps/catalogue/models.py
+++ b/apps/catalogue/models.py
@@ -6,6 +6,7 @@ from django.contrib.auth.models import User
 from django.core.files import File
 from django.template.loader import render_to_string
 from django.utils.safestring import mark_safe
 from django.core.files import File
 from django.template.loader import render_to_string
 from django.utils.safestring import mark_safe

+from django.core.urlresolvers import reverse

 
 from newtagging.models import TagBase
 from newtagging import managers
 
 from newtagging.models import TagBase
 from newtagging import managers


@@ -33,7 +34,7 @@ class TagSubcategoryManager(models.Manager):
 
 
 class Tag(TagBase):
 
 
 class Tag(TagBase):

-    name = models.CharField(_('name'), max_length=50, unique=True, db_index=True)
+    name = models.CharField(_('name'), max_length=50, db_index=True)

     slug = models.SlugField(_('slug'), max_length=120, unique=True, db_index=True)
     sort_key = models.SlugField(_('sort key'), max_length=120, db_index=True)
     category = models.CharField(_('category'), max_length=50, blank=False, null=False, 
     slug = models.SlugField(_('slug'), max_length=120, unique=True, db_index=True)
     sort_key = models.SlugField(_('sort key'), max_length=120, db_index=True)
     category = models.CharField(_('category'), max_length=50, blank=False, null=False, 


@@ -69,18 +70,26 @@ class Tag(TagBase):
             return TagBase.get_tag_list(tags)
 
 
             return TagBase.get_tag_list(tags)
 
 

+def book_upload_path(ext):
+    def get_dynamic_path(book, filename):
+        return 'lektura/%s.%s' % (book.slug, ext)
+    return get_dynamic_path
+
+

 class Book(models.Model):
     title = models.CharField(_('title'), max_length=120)
     slug = models.SlugField(_('slug'), max_length=120, unique=True, db_index=True)
     description = models.TextField(_('description'), blank=True)
     created_at = models.DateTimeField(_('creation date'), auto_now=True)
     _short_html = models.TextField(_('short HTML'), editable=False)
 class Book(models.Model):
     title = models.CharField(_('title'), max_length=120)
     slug = models.SlugField(_('slug'), max_length=120, unique=True, db_index=True)
     description = models.TextField(_('description'), blank=True)
     created_at = models.DateTimeField(_('creation date'), auto_now=True)
     _short_html = models.TextField(_('short HTML'), editable=False)

+    parent_number = models.IntegerField(_('parent number'), default=0)

     
     # Formats
     
     # Formats

-    xml_file = models.FileField(_('XML file'), upload_to='books/xml', blank=True)
-    pdf_file = models.FileField(_('PDF file'), upload_to='books/pdf', blank=True)
-    odt_file = models.FileField(_('ODT file'), upload_to='books/odt', blank=True)
-    html_file = models.FileField(_('HTML file'), upload_to='books/html', blank=True)
+    xml_file = models.FileField(_('XML file'), upload_to=book_upload_path('xml'), blank=True)
+    html_file = models.FileField(_('HTML file'), upload_to=book_upload_path('html'), blank=True)
+    pdf_file = models.FileField(_('PDF file'), upload_to=book_upload_path('pdf'), blank=True)
+    odt_file = models.FileField(_('ODT file'), upload_to=book_upload_path('odt'), blank=True)
+    txt_file = models.FileField(_('TXT file'), upload_to=book_upload_path('txt'), blank=True)

     
     parent = models.ForeignKey('self', blank=True, null=True, related_name='children')
     
     
     parent = models.ForeignKey('self', blank=True, null=True, related_name='children')
     


@@ -97,11 +106,13 @@ class Book(models.Model):
 
             formats = []
             if self.html_file:
 
             formats = []
             if self.html_file:

-                formats.append(u'<a href="%s">Czytaj online</a>' % self.html_file.url)
+                formats.append(u'<a href="%s">Czytaj online</a>' % reverse('book_text', kwargs={'slug': self.slug}))

             if self.pdf_file:
                 formats.append(u'<a href="%s">Plik PDF</a>' % self.pdf_file.url)
             if self.odt_file:
                 formats.append(u'<a href="%s">Plik ODT</a>' % self.odt_file.url)
             if self.pdf_file:
                 formats.append(u'<a href="%s">Plik PDF</a>' % self.pdf_file.url)
             if self.odt_file:
                 formats.append(u'<a href="%s">Plik ODT</a>' % self.odt_file.url)

+            if self.txt_file:
+                formats.append(u'<a href="%s">Plik TXT</a>' % self.txt_file.url)

             
             self._short_html = unicode(render_to_string('catalogue/book_short.html',
                 {'book': self, 'tags': tags, 'formats': formats}))
             
             self._short_html = unicode(render_to_string('catalogue/book_short.html',
                 {'book': self, 'tags': tags, 'formats': formats}))


@@ -128,15 +139,24 @@ class Book(models.Model):
     has_html_file.short_description = 'HTML'
     has_html_file.boolean = True
 
     has_html_file.short_description = 'HTML'
     has_html_file.boolean = True
 

+    class AlreadyExists(Exception):
+        pass
+    

     @staticmethod
     @staticmethod

-    def from_xml_file(xml_file):
+    def from_xml_file(xml_file, overwrite=False):

         from tempfile import NamedTemporaryFile
         from slughifi import slughifi
         from markupstring import MarkupString
         
         # Read book metadata
         book_info = dcparser.parse(xml_file)
         from tempfile import NamedTemporaryFile
         from slughifi import slughifi
         from markupstring import MarkupString
         
         # Read book metadata
         book_info = dcparser.parse(xml_file)

-        book = Book(title=book_info.title, slug=slughifi(book_info.title))
+        book_base, book_slug = book_info.url.rsplit('/', 1)
+        book, created = Book.objects.get_or_create(slug=book_slug)
+        if not created and not overwrite:
+            raise Book.AlreadyExists('Book %s already exists' % book_slug)
+        
+        book.title = book_info.title
+        book._short_html = ''

         book.save()
         
         book_tags = []
         book.save()
         
         book_tags = []


@@ -146,50 +166,62 @@ class Book(models.Model):
             if category == 'author':
                 tag_sort_key = tag_name.last_name
                 tag_name = ' '.join(tag_name.first_names) + ' ' + tag_name.last_name
             if category == 'author':
                 tag_sort_key = tag_name.last_name
                 tag_name = ' '.join(tag_name.first_names) + ' ' + tag_name.last_name

-            tag, created = Tag.objects.get_or_create(name=tag_name,
-                slug=slughifi(tag_name), sort_key=slughifi(tag_sort_key), category=category)
-            tag.save()
+            tag, created = Tag.objects.get_or_create(slug=slughifi(tag_name))
+            if created:
+                tag.name = tag_name
+                tag.sort_key = slughifi(tag_sort_key)
+                tag.category = category
+                tag.save()

             book_tags.append(tag)
         book.tags = book_tags
         
         if hasattr(book_info, 'parts'):
             book_tags.append(tag)
         book.tags = book_tags
         
         if hasattr(book_info, 'parts'):

-            for part_url in book_info.parts:
+            for n, part_url in enumerate(book_info.parts):

                 base, slug = part_url.rsplit('/', 1)
                 child_book = Book.objects.get(slug=slug)
                 child_book.parent = book
                 base, slug = part_url.rsplit('/', 1)
                 child_book = Book.objects.get(slug=slug)
                 child_book.parent = book

+                child_book.parent_number = n

                 child_book.save()
         
         # Save XML and HTML files
         book.xml_file.save('%s.xml' % book.slug, File(file(xml_file)), save=False)
         
         html_file = NamedTemporaryFile()
                 child_book.save()
         
         # Save XML and HTML files
         book.xml_file.save('%s.xml' % book.slug, File(file(xml_file)), save=False)
         
         html_file = NamedTemporaryFile()

-        html.transform(book.xml_file.path, html_file)
-        book.html_file.save('%s.html' % book.slug, File(html_file), save=False)
-        
-        # Extract fragments
-        closed_fragments, open_fragments = html.extract_fragments(book.html_file.path)
-        book_themes = []
-        for fragment in closed_fragments.values():
-            text = fragment.to_string()
-            short_text = ''
-            if (len(MarkupString(text)) > 240):
-                short_text = unicode(MarkupString(text)[:160])
-            new_fragment = Fragment(text=text, short_text=short_text, anchor=fragment.id, book=book)
+        if html.transform(book.xml_file.path, html_file):
+            book.html_file.save('%s.html' % book.slug, File(html_file), save=False)
+            
+            # Extract fragments
+            closed_fragments, open_fragments = html.extract_fragments(book.html_file.path)
+            book_themes = []
+            for fragment in closed_fragments.values():
+                text = fragment.to_string()
+                short_text = ''
+                if (len(MarkupString(text)) > 240):
+                    short_text = unicode(MarkupString(text)[:160])
+                new_fragment = Fragment(text=text, short_text=short_text, anchor=fragment.id, book=book)

                 
                 

-            theme_names = [s.strip() for s in fragment.themes.split(',')]
-            themes = []
-            for theme_name in theme_names:
-                tag, created = Tag.objects.get_or_create(name=theme_name,
-                    slug=slughifi(theme_name), sort_key=slughifi(theme_name), category='theme')
-                tag.save()
-                themes.append(tag)
-            new_fragment.save()
-            new_fragment.tags = list(book.tags) + themes
-            book_themes += themes
+                try:
+                    theme_names = [s.strip() for s in fragment.themes.split(',')]
+                except AttributeError:
+                    continue
+                themes = []
+                for theme_name in theme_names:
+                    tag, created = Tag.objects.get_or_create(slug=slughifi(theme_name))
+                    if created:
+                        tag.name = theme_name
+                        tag.sort_key = slughifi(theme_name)
+                        tag.category = 'theme'
+                        tag.save()
+                    themes.append(tag)
+                new_fragment.save()
+                new_fragment.tags = list(book.tags) + themes
+                book_themes += themes
+            
+            book_themes = set(book_themes)
+            book.tags = list(book.tags) + list(book_themes)

         
         

-        book_themes = set(book_themes)
-        book.tags = list(book.tags) + list(book_themes)
-        return book.save()
+        book.save()
+        return book

     
     @permalink
     def get_absolute_url(self):
     
     @permalink
     def get_absolute_url(self):


@@ -226,7 +258,10 @@ class Fragment(models.Model):
                 {'fragment': self, 'book': self.book, 'book_authors': book_authors}))
             self.save()
             return mark_safe(self._short_html)
                 {'fragment': self, 'book': self.book, 'book_authors': book_authors}))
             self.save()
             return mark_safe(self._short_html)

-        
+    
+    def get_absolute_url(self):
+        return '%s#m%s' % (reverse('book_text', kwargs={'slug': self.book.slug}), self.anchor)
+    

     class Meta:
         ordering = ('book', 'anchor',)
         verbose_name = _('fragment')
     class Meta:
         ordering = ('book', 'anchor',)
         verbose_name = _('fragment')