def test_generate_thumbnail(photo_fixture_snow):
width, height, crop, quality, _, _ = settings.THUMBNAIL_SIZES[0]
assert width == 256
assert height == 256
assert crop == 'cover'
assert quality == 50
# Should generate image thumbnail and return bytes as we specified in the return_type
result = get_thumbnail(photo_fixture_snow.base_file.id,
width=width,
height=height,
crop=crop,
quality=quality,
return_type='bytes')
assert result[:10] == b'\xff\xd8\xff\xe0\x00\x10JFIF'
# It should also have saved the thumbnail data down to disk
path = get_thumbnail_path(photo_fixture_snow.base_file.id, width, height,
crop, quality)
assert os.path.exists(path)
assert str(path).endswith(
str(
Path('cache') / 'thumbnails' / 'photofile' / '256x256_cover_q50' /
'{}.jpg'.format(str(photo_fixture_snow.base_file.id))))
assert len(result) == os.stat(path).st_size
assert os.stat(path).st_size > 5929 * 0.8
assert os.stat(path).st_size < 5929 * 1.2
def thumbnailer(request, type, id, width, height, crop, quality):
width = int(width)
height = int(height)
quality = int(quality)
thumbnail_size_index = None
force_accurate = False
for i, thumbnail_size in enumerate(settings.THUMBNAIL_SIZES):
if width == thumbnail_size[0] and height == thumbnail_size[
1] and crop == thumbnail_size[2] and quality == thumbnail_size[
3]:
thumbnail_size_index = i
force_accurate = thumbnail_size[5]
break
if thumbnail_size_index is None:
return HttpResponseNotFound('No photo thumbnail with these parameters')
photo_id = None
photo_file_id = None
if type == 'photo':
photo_id = id
elif type == 'photofile':
photo_file_id = id
path = get_thumbnail(photo_file=photo_file_id,
photo=photo_id,
width=width,
height=height,
crop=crop,
quality=quality,
return_type='url',
force_accurate=force_accurate)
return HttpResponseRedirect(path)
def thumbnail_view(request, photo_id, width, height, crop, quality):
width = int(width)
height = int(height)
quality = int(quality)
thumbnail_size_index = None
for i, thumbnail_size in enumerate(settings.THUMBNAIL_SIZES):
if width == thumbnail_size[0] and height == thumbnail_size[1] and crop == thumbnail_size[2] and quality == thumbnail_size[3]:
thumbnail_size_index = i
break
if thumbnail_size_index is None:
return HttpResponseNotFound('No photo thumbnail with these parameters')
img_bytes = get_thumbnail(photo_id, width, height, crop, quality, return_type='bytes')
response = HttpResponse(img_bytes, content_type='image/jpeg')
return response