Lagt til støtte for å vise kategorier med 'show'-kommandoen.

python/web/library/models.py

@@ -12,6 +12,24 @@ class Category(models.Model):
 	id = models.CharField(max_length=255, primary_key=True)
 	name = models.CharField(max_length=255)
 
+	def to_string(self):
+		str = 'category %s\nName: %s\n' % (self.id, self.name)
+		str += 'Placement: %s\n' % self.placements_str()
+		str += 'Books:\n'
+		for book in self.books.all():
+			str += ' %-13s %-10s %s\n' % (book.isbn, book.getid() or '', book.title)
+		if len(self.books.all()) == 0:
+			str += ' (no books in this category)\n'
+		return str
+
+	def to_dict(self):
+		return { 'action': 'edit-category',
+			 'id': self.id, 'name': self.name,
+			 'placement': self.placements_str() }
+
+	def placements_str(self):
+		return ', '.join(map(lambda pl: pl.shelf, self.placement.all()))
+
 	def __unicode__(self):
 		return self.name
 
@@ -33,7 +51,7 @@ class Book(models.Model):
 #	id = models.CharField(max_length=255)
 	title = models.CharField(max_length=511)
 	subtitle = models.CharField(max_length=511, null=True, blank=True)
-	category = models.ForeignKey(Category, null=True, blank=True)
+	category = models.ForeignKey(Category, null=True, blank=True, related_name='books')
 	publisher = models.CharField(max_length=255, null=True, blank=True)
 	published_year = models.IntegerField(null=True, blank=True)
 	edition = models.IntegerField(null=True, blank=True)