1 import urllib

     2 from formatbytes import formatbytes

     3 from datetime import datetime

     4 

     5 """

     6     Helper functions for use in templates

     7 """

     8 

     9 def iter_is_first (seq) :

    10     flag = True

    11     

    12     for item in seq :

    13         yield item, flag

    14         flag = False

    15         

    16 def url_for_page (page) :

    17     assert page >= 0

    18 

    19     if page > 0 :

    20         return  'index_%d.html' % page

    21     else :

    22         return 'index.html'

    23 

    24 def tag_for_img (page, img) :

    25     return """<a href="%s"><img src="%s" /></a>""" % (page, img)

    26 

    27 def format_filesize (size) :

    28     return formatbytes(size, forcekb=False, largestonly=True, kiloname='KiB', meganame='MiB', bytename='B', nospace=False)

    29 

    30 def format_timestamp (ts) :

    31     return datetime.fromtimestamp(ts).strftime("%Y-%m-%d %H:%M:%S")

    32 

    33 def format_imgsize (size) :

    34     return "%dx%d" % size