def test_referred(self):
tmpfile = self._create_tmp_file()
newfile = File(name='testfile.txt', source=tmpfile,
session=self.session)
self.session.commit()
source = self._get_test_file('sample.png')
newimage = Image(source=source, name="original.png",
session=self.session)
self.session.commit()
page = create_page(self.session)
content = '<a href={f.url}>{f.name}</a><img src={img.url}/>'
page.content = content.format(f=newfile, img=newimage)
# Statements aren't needed: append will be performed by after_flush.
#page.files.append(newfile)
#page.images.append(newimage)
self.session.commit()
self.assertIn(page, newfile.pages)
self.assertIn(page, newimage.pages)
with self.assertRaises(ConstraintError):
newfile.delete()
with self.assertRaises(ConstraintError):
newimage.delete()
self.assertIn(page, newfile.pages)
self.assertIn(page, newimage.pages)
d = newfile.to_dict()
self.assertNotIn('used_by', d)
d = newfile.to_dict(ref_pages=True)
self.assertIn('used_by', d)
