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annotate sat_website/templatetags/utils.py @ 136:c56b6ad62153

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add section News with the official news feed
author souliane <souliane@mailoo.org>
date Thu, 14 Jan 2016 23:39:43 +0100
parents 9ae3d9c8b28a
children
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1 from django import template
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2 from django.forms import RadioSelect, CheckboxInput
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3 from django.utils.translation import get_language, ugettext_lazy as _
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4 import urllib2
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5 import urlparse
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6 import re
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7 register = template.Library()
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8
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9 @register.filter
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10 def is_tuple(value):
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11 """Tell if this value is a tuple or not.
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12
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13 @param value (obj): any object
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14 @return: True if value is a tuple
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15 """
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16 # XXX: we would like to have is_type with an argument instead, but it would
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17 # rely on a strange comparison - isinstance(value, arg) doesn't work here
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18 return type(value) == tuple
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19
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20 @register.filter
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21 def is_radio(value):
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22 """Tell if this value is a RadioSelect or not.
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23
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24 @param value (obj): any object
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25 @return: True if value is a RadioSelect
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26 """
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27 return type(value) == RadioSelect
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29 @register.filter
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30 def is_checkbox(value):
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31 """Tell if this value is a CheckboxInput or not.
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32
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33 @param value (obj): any object
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34 @return: True if value is a CheckboxInput
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35 """
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36 return type(value) == CheckboxInput
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37
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38 @register.filter
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39 def selected_label(select):
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40 """Return the label of the single selected option.
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41
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42 @param select: a BoundField object bound to a Select with single choice.
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43 @return: unicode
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44 """
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45 for value, label in select.field.choices:
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46 if value == select.value():
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47 return label
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48 return None
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49
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50 @register.filter
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51 def buffer(value, n):
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52 """Split values in sub-lists of n elements.
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53
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54 @param value (list): a list object
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55 @return: a list containing sub-lists
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56
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57 For example:
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58
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59 >>> buffer(range(10), 2)
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60 [[0, 1], [2, 3], [4, 5], [6, 7], [8, 9]]
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61
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62 >>> buffer(range(10), 3)
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63 [[0, 1, 2], [3, 4, 5], [6, 7, 8], [9]]
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64
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65 >>> buffer(range(10), 4)
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66 [[0, 1, 2, 3], [4, 5, 6, 7], [8, 9]]
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67 """
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68 result = []
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69 index = 0
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70 while index < len(value):
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71 result.append(value[index:index + n])
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72 index += n
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73 return result
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74
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75 @register.filter
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76 def select_video_path(paths):
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77 """Return the video path matching the current language.
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78
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79 @param paths (dict): dict of video paths.
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80 @return: unicode
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81 """
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82 lang = get_language()
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83 if lang in paths:
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84 return paths[lang]
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85 return paths.values()[0]
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86
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87 @register.filter
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88 def metadata(entry):
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89 """Return a string representation of the video metadata.
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90
90
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91 @param entry (VideoDesc): video entry
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92 @return: unicode
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93 """
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94 sep = _(': ')
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95 lang = get_language()
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96
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97 def get_item(key, value):
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98 return "%s%s%s" % (key, sep, value)
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99
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100 items = []
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101 for key, value in entry.data.iteritems():
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102 if key == "subtitles": # is used as another dict key in media.py
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103 key = _(u"subtitles")
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104 items.append(get_item(key.translate(lang), value))
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105 try:
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106 lang_key = _(u"language").translate(lang)
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107 lang_value = lang if lang in entry.paths else entry.paths.keys()[0]
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108 items.append(get_item(lang_key, lang_value))
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109 except AttributeError:
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110 pass
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111 return "(%s)" % ', '.join(items)
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112
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113 @register.simple_tag
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114 def insert_blog_content(url):
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115 # XXX: quick and dirty
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116 url = url.encode("utf-8")
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117 parse_result = urlparse.urlparse(url, "http")
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118 base_url = urlparse.urljoin("%s://%s" % (parse_result.scheme, parse_result.netloc), "blog")
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119 text = urllib2.urlopen(url).read()
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120 subs = []
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121 for match in re.finditer(r"(href=|src=)\"([^\"]*)\"", text):
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122 if re.match("^[^:]*://", match.group(2)): # keep absolute link
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123 continue
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124 # complete relative link
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125 subs.append((match.group(0), match.group(1) + '"%s"' % urlparse.urljoin(base_url, match.group(2))))
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126 for url, new_url in subs:
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127 text = text.replace(url, new_url)
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128 return text