Mercurial > sat_legacy_website
diff sat_website/templatetags/utils.py @ 29:b45621706d83
use Bootstrap carousels to display images and videos galeries:
- one carousel for a 3x3 thumbnails grid
- a second one in a modal window to view bigger pictures when a thumbnail is clicked
| author | souliane <souliane@mailoo.org> |
|---|---|
| date | Wed, 21 Jan 2015 20:13:19 +0100 |
| parents | eda4deefecd1 |
| children | 9d553570cc61 |
line wrap: on
line diff
--- a/sat_website/templatetags/utils.py Wed Jan 21 20:08:26 2015 +0100 +++ b/sat_website/templatetags/utils.py Wed Jan 21 20:13:19 2015 +0100 @@ -12,3 +12,27 @@ # rely on a strange comparison - isinstance(value, arg) doesn't work here return type(value) == tuple +@register.filter +def buffer(value, n): + """Split values in sub-lists of n elements. + + @param value (list): a list object + @return: a list containing sub-lists + + For example: + + >>> buffer(range(10), 2) + [[0, 1], [2, 3], [4, 5], [6, 7], [8, 9]] + + >>> buffer(range(10), 3) + [[0, 1, 2], [3, 4, 5], [6, 7, 8], [9]] + + >>> buffer(range(10), 4) + [[0, 1, 2, 3], [4, 5, 6, 7], [8, 9]] + """ + result = [] + index = 0 + while index < len(value): + result.append(value[index:index + n]) + index += n + return result