author | Todd Larsen <tlarsen@google.com> |
Wed, 01 Oct 2008 06:03:53 +0000 | |
changeset 236 | d5302883f3ac |
parent 54 | 03e267d67478 |
child 323 | ff1a9aa48cfd |
permissions | -rw-r--r-- |
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Major reorganization of the soc svn repo, to merge into a single App Engine
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import datetime |
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import time |
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|
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from django.template import loader, RequestContext |
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from django.core.exceptions import ObjectDoesNotExist |
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from django.core.xheaders import populate_xheaders |
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from django.db.models.fields import DateTimeField |
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from django.http import Http404, HttpResponse |
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|
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def archive_index(request, queryset, date_field, num_latest=15, |
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template_name=None, template_loader=loader, |
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extra_context=None, allow_empty=True, context_processors=None, |
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mimetype=None, allow_future=False, template_object_name='latest'): |
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""" |
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Generic top-level archive of date-based objects. |
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|
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Templates: ``<app_label>/<model_name>_archive.html`` |
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Context: |
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date_list |
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List of years |
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latest |
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Latest N (defaults to 15) objects by date |
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""" |
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if extra_context is None: extra_context = {} |
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model = queryset.model |
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if not allow_future: |
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queryset = queryset.filter(**{'%s__lte' % date_field: datetime.datetime.now()}) |
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date_list = queryset.dates(date_field, 'year')[::-1] |
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if not date_list and not allow_empty: |
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raise Http404, "No %s available" % model._meta.verbose_name |
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if date_list and num_latest: |
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latest = queryset.order_by('-'+date_field)[:num_latest] |
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else: |
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latest = None |
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if not template_name: |
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template_name = "%s/%s_archive.html" % (model._meta.app_label, model._meta.object_name.lower()) |
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t = template_loader.get_template(template_name) |
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c = RequestContext(request, { |
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'date_list' : date_list, |
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template_object_name : latest, |
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}, context_processors) |
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for key, value in extra_context.items(): |
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if callable(value): |
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c[key] = value() |
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else: |
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c[key] = value |
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return HttpResponse(t.render(c), mimetype=mimetype) |
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|
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def archive_year(request, year, queryset, date_field, template_name=None, |
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template_loader=loader, extra_context=None, allow_empty=False, |
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context_processors=None, template_object_name='object', mimetype=None, |
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make_object_list=False, allow_future=False): |
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""" |
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Generic yearly archive view. |
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|
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Templates: ``<app_label>/<model_name>_archive_year.html`` |
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Context: |
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date_list |
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List of months in this year with objects |
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year |
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This year |
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object_list |
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List of objects published in the given month |
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(Only available if make_object_list argument is True) |
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""" |
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if extra_context is None: extra_context = {} |
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model = queryset.model |
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now = datetime.datetime.now() |
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|
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lookup_kwargs = {'%s__year' % date_field: year} |
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|
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# Only bother to check current date if the year isn't in the past and future objects aren't requested. |
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if int(year) >= now.year and not allow_future: |
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lookup_kwargs['%s__lte' % date_field] = now |
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date_list = queryset.filter(**lookup_kwargs).dates(date_field, 'month') |
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if not date_list and not allow_empty: |
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raise Http404 |
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if make_object_list: |
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object_list = queryset.filter(**lookup_kwargs) |
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else: |
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object_list = [] |
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if not template_name: |
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template_name = "%s/%s_archive_year.html" % (model._meta.app_label, model._meta.object_name.lower()) |
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t = template_loader.get_template(template_name) |
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c = RequestContext(request, { |
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'date_list': date_list, |
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'year': year, |
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'%s_list' % template_object_name: object_list, |
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}, context_processors) |
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for key, value in extra_context.items(): |
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if callable(value): |
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c[key] = value() |
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else: |
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c[key] = value |
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return HttpResponse(t.render(c), mimetype=mimetype) |
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|
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def archive_month(request, year, month, queryset, date_field, |
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month_format='%b', template_name=None, template_loader=loader, |
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extra_context=None, allow_empty=False, context_processors=None, |
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template_object_name='object', mimetype=None, allow_future=False): |
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""" |
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Generic monthly archive view. |
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|
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Templates: ``<app_label>/<model_name>_archive_month.html`` |
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Context: |
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month: |
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109 |
(date) this month |
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110 |
next_month: |
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111 |
(date) the first day of the next month, or None if the next month is in the future |
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previous_month: |
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113 |
(date) the first day of the previous month |
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114 |
object_list: |
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115 |
list of objects published in the given month |
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116 |
""" |
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117 |
if extra_context is None: extra_context = {} |
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118 |
try: |
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119 |
date = datetime.date(*time.strptime(year+month, '%Y'+month_format)[:3]) |
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120 |
except ValueError: |
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121 |
raise Http404 |
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122 |
|
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123 |
model = queryset.model |
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124 |
now = datetime.datetime.now() |
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125 |
|
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126 |
# Calculate first and last day of month, for use in a date-range lookup. |
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127 |
first_day = date.replace(day=1) |
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128 |
if first_day.month == 12: |
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129 |
last_day = first_day.replace(year=first_day.year + 1, month=1) |
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130 |
else: |
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131 |
last_day = first_day.replace(month=first_day.month + 1) |
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132 |
lookup_kwargs = {'%s__range' % date_field: (first_day, last_day)} |
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133 |
|
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134 |
# Only bother to check current date if the month isn't in the past and future objects are requested. |
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135 |
if last_day >= now.date() and not allow_future: |
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|
136 |
lookup_kwargs['%s__lte' % date_field] = now |
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|
137 |
object_list = queryset.filter(**lookup_kwargs) |
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138 |
if not object_list and not allow_empty: |
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139 |
raise Http404 |
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140 |
|
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141 |
# Calculate the next month, if applicable. |
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142 |
if allow_future: |
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143 |
next_month = last_day + datetime.timedelta(days=1) |
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144 |
elif last_day < datetime.date.today(): |
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145 |
next_month = last_day + datetime.timedelta(days=1) |
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146 |
else: |
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147 |
next_month = None |
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148 |
|
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149 |
if not template_name: |
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150 |
template_name = "%s/%s_archive_month.html" % (model._meta.app_label, model._meta.object_name.lower()) |
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151 |
t = template_loader.get_template(template_name) |
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152 |
c = RequestContext(request, { |
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153 |
'%s_list' % template_object_name: object_list, |
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154 |
'month': date, |
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155 |
'next_month': next_month, |
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156 |
'previous_month': first_day - datetime.timedelta(days=1), |
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157 |
}, context_processors) |
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158 |
for key, value in extra_context.items(): |
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159 |
if callable(value): |
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160 |
c[key] = value() |
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|
161 |
else: |
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162 |
c[key] = value |
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163 |
return HttpResponse(t.render(c), mimetype=mimetype) |
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164 |
|
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165 |
def archive_week(request, year, week, queryset, date_field, |
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166 |
template_name=None, template_loader=loader, |
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167 |
extra_context=None, allow_empty=True, context_processors=None, |
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168 |
template_object_name='object', mimetype=None, allow_future=False): |
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169 |
""" |
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170 |
Generic weekly archive view. |
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|
171 |
|
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172 |
Templates: ``<app_label>/<model_name>_archive_week.html`` |
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173 |
Context: |
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|
174 |
week: |
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|
175 |
(date) this week |
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|
176 |
object_list: |
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|
177 |
list of objects published in the given week |
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|
178 |
""" |
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|
179 |
if extra_context is None: extra_context = {} |
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180 |
try: |
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|
181 |
date = datetime.date(*time.strptime(year+'-0-'+week, '%Y-%w-%U')[:3]) |
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|
182 |
except ValueError: |
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|
183 |
raise Http404 |
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|
184 |
|
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|
185 |
model = queryset.model |
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|
186 |
now = datetime.datetime.now() |
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|
187 |
|
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|
188 |
# Calculate first and last day of week, for use in a date-range lookup. |
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|
189 |
first_day = date |
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|
190 |
last_day = date + datetime.timedelta(days=7) |
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|
191 |
lookup_kwargs = {'%s__range' % date_field: (first_day, last_day)} |
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|
192 |
|
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|
193 |
# Only bother to check current date if the week isn't in the past and future objects aren't requested. |
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|
194 |
if last_day >= now.date() and not allow_future: |
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|
195 |
lookup_kwargs['%s__lte' % date_field] = now |
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|
196 |
object_list = queryset.filter(**lookup_kwargs) |
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|
197 |
if not object_list and not allow_empty: |
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|
198 |
raise Http404 |
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|
199 |
if not template_name: |
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|
200 |
template_name = "%s/%s_archive_week.html" % (model._meta.app_label, model._meta.object_name.lower()) |
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|
201 |
t = template_loader.get_template(template_name) |
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|
202 |
c = RequestContext(request, { |
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|
203 |
'%s_list' % template_object_name: object_list, |
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|
204 |
'week': date, |
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|
205 |
}) |
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|
206 |
for key, value in extra_context.items(): |
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|
207 |
if callable(value): |
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|
208 |
c[key] = value() |
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|
209 |
else: |
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|
210 |
c[key] = value |
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|
211 |
return HttpResponse(t.render(c), mimetype=mimetype) |
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|
212 |
|
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|
213 |
def archive_day(request, year, month, day, queryset, date_field, |
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214 |
month_format='%b', day_format='%d', template_name=None, |
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|
215 |
template_loader=loader, extra_context=None, allow_empty=False, |
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|
216 |
context_processors=None, template_object_name='object', |
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|
217 |
mimetype=None, allow_future=False): |
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|
218 |
""" |
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|
219 |
Generic daily archive view. |
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|
220 |
|
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|
221 |
Templates: ``<app_label>/<model_name>_archive_day.html`` |
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|
222 |
Context: |
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|
223 |
object_list: |
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|
224 |
list of objects published that day |
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|
225 |
day: |
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|
226 |
(datetime) the day |
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|
227 |
previous_day |
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(datetime) the previous day |
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229 |
next_day |
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230 |
(datetime) the next day, or None if the current day is today |
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231 |
""" |
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232 |
if extra_context is None: extra_context = {} |
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233 |
try: |
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date = datetime.date(*time.strptime(year+month+day, '%Y'+month_format+day_format)[:3]) |
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235 |
except ValueError: |
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236 |
raise Http404 |
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237 |
|
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238 |
model = queryset.model |
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239 |
now = datetime.datetime.now() |
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240 |
|
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241 |
if isinstance(model._meta.get_field(date_field), DateTimeField): |
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242 |
lookup_kwargs = {'%s__range' % date_field: (datetime.datetime.combine(date, datetime.time.min), datetime.datetime.combine(date, datetime.time.max))} |
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243 |
else: |
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244 |
lookup_kwargs = {date_field: date} |
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245 |
|
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# Only bother to check current date if the date isn't in the past and future objects aren't requested. |
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247 |
if date >= now.date() and not allow_future: |
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248 |
lookup_kwargs['%s__lte' % date_field] = now |
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249 |
object_list = queryset.filter(**lookup_kwargs) |
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if not allow_empty and not object_list: |
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251 |
raise Http404 |
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252 |
|
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253 |
# Calculate the next day, if applicable. |
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254 |
if allow_future: |
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255 |
next_day = date + datetime.timedelta(days=1) |
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256 |
elif date < datetime.date.today(): |
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257 |
next_day = date + datetime.timedelta(days=1) |
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258 |
else: |
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next_day = None |
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260 |
|
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261 |
if not template_name: |
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262 |
template_name = "%s/%s_archive_day.html" % (model._meta.app_label, model._meta.object_name.lower()) |
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t = template_loader.get_template(template_name) |
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c = RequestContext(request, { |
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'%s_list' % template_object_name: object_list, |
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266 |
'day': date, |
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267 |
'previous_day': date - datetime.timedelta(days=1), |
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268 |
'next_day': next_day, |
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269 |
}, context_processors) |
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270 |
for key, value in extra_context.items(): |
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271 |
if callable(value): |
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c[key] = value() |
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273 |
else: |
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274 |
c[key] = value |
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275 |
return HttpResponse(t.render(c), mimetype=mimetype) |
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276 |
|
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277 |
def archive_today(request, **kwargs): |
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278 |
""" |
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279 |
Generic daily archive view for today. Same as archive_day view. |
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280 |
""" |
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281 |
today = datetime.date.today() |
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282 |
kwargs.update({ |
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283 |
'year': str(today.year), |
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284 |
'month': today.strftime('%b').lower(), |
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285 |
'day': str(today.day), |
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286 |
}) |
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287 |
return archive_day(request, **kwargs) |
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288 |
|
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289 |
def object_detail(request, year, month, day, queryset, date_field, |
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290 |
month_format='%b', day_format='%d', object_id=None, slug=None, |
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291 |
slug_field='slug', template_name=None, template_name_field=None, |
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292 |
template_loader=loader, extra_context=None, context_processors=None, |
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293 |
template_object_name='object', mimetype=None, allow_future=False): |
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|
294 |
""" |
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|
295 |
Generic detail view from year/month/day/slug or year/month/day/id structure. |
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296 |
|
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297 |
Templates: ``<app_label>/<model_name>_detail.html`` |
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298 |
Context: |
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|
299 |
object: |
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|
300 |
the object to be detailed |
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|
301 |
""" |
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|
302 |
if extra_context is None: extra_context = {} |
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|
303 |
try: |
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|
304 |
date = datetime.date(*time.strptime(year+month+day, '%Y'+month_format+day_format)[:3]) |
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|
305 |
except ValueError: |
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|
306 |
raise Http404 |
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|
307 |
|
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|
308 |
model = queryset.model |
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|
309 |
now = datetime.datetime.now() |
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|
310 |
|
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|
311 |
if isinstance(model._meta.get_field(date_field), DateTimeField): |
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|
312 |
lookup_kwargs = {'%s__range' % date_field: (datetime.datetime.combine(date, datetime.time.min), datetime.datetime.combine(date, datetime.time.max))} |
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|
313 |
else: |
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|
314 |
lookup_kwargs = {date_field: date} |
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|
315 |
|
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|
316 |
# Only bother to check current date if the date isn't in the past and future objects aren't requested. |
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|
317 |
if date >= now.date() and not allow_future: |
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|
318 |
lookup_kwargs['%s__lte' % date_field] = now |
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|
319 |
if object_id: |
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|
320 |
lookup_kwargs['%s__exact' % model._meta.pk.name] = object_id |
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|
321 |
elif slug and slug_field: |
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|
322 |
lookup_kwargs['%s__exact' % slug_field] = slug |
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|
323 |
else: |
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|
324 |
raise AttributeError, "Generic detail view must be called with either an object_id or a slug/slugfield" |
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|
325 |
try: |
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|
326 |
obj = queryset.get(**lookup_kwargs) |
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|
327 |
except ObjectDoesNotExist: |
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|
328 |
raise Http404, "No %s found for" % model._meta.verbose_name |
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|
329 |
if not template_name: |
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|
330 |
template_name = "%s/%s_detail.html" % (model._meta.app_label, model._meta.object_name.lower()) |
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|
331 |
if template_name_field: |
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|
332 |
template_name_list = [getattr(obj, template_name_field), template_name] |
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|
333 |
t = template_loader.select_template(template_name_list) |
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|
334 |
else: |
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|
335 |
t = template_loader.get_template(template_name) |
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|
336 |
c = RequestContext(request, { |
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|
337 |
template_object_name: obj, |
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|
338 |
}, context_processors) |
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Major reorganization of the soc svn repo, to merge into a single App Engine
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|
339 |
for key, value in extra_context.items(): |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
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|
340 |
if callable(value): |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
341 |
c[key] = value() |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
342 |
else: |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
343 |
c[key] = value |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
344 |
response = HttpResponse(t.render(c), mimetype=mimetype) |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
345 |
populate_xheaders(request, response, model, getattr(obj, obj._meta.pk.name)) |
03e267d67478
Major reorganization of the soc svn repo, to merge into a single App Engine
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
346 |
return response |