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annotate sat_website/templatetags/utils.py @ 29:b45621706d83

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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
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eda4deefecd1 reorganisation of the menu using submenus
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1 from django import template
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2 register = template.Library()
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3
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4 @register.filter
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5 def is_tuple(value):
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6 """Tell if this value is a tuple or not.
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7
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8 @param value (obj): any object
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9 @return: True if value is a tuple
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10 """
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11 # XXX: we would like to have is_type with an argument instead, but it would
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12 # rely on a strange comparison - isinstance(value, arg) doesn't work here
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13 return type(value) == tuple
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15 @register.filter
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16 def buffer(value, n):
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17 """Split values in sub-lists of n elements.
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18
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19 @param value (list): a list object
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20 @return: a list containing sub-lists
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21
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22 For example:
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23
b45621706d83 use Bootstrap carousels to display images and videos galeries:
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24 >>> buffer(range(10), 2)
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25 [[0, 1], [2, 3], [4, 5], [6, 7], [8, 9]]
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27 >>> buffer(range(10), 3)
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28 [[0, 1, 2], [3, 4, 5], [6, 7, 8], [9]]
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30 >>> buffer(range(10), 4)
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31 [[0, 1, 2, 3], [4, 5, 6, 7], [8, 9]]
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32 """
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33 result = []
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34 index = 0
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35 while index < len(value):
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36 result.append(value[index:index + n])
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37 index += n
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38 return result