65 lines
1.6 KiB
Python
65 lines
1.6 KiB
Python
# publik-django-templatetags
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# Copyright (C) 2022 Entr'ouvert
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#
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# This program is free software: you can redistribute it and/or modify it
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# under the terms of the GNU Affero General Public License as published
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# by the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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from django import template
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from django.template import defaultfilters
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register = template.Library()
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@register.filter(name='get')
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def get(obj, key):
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try:
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return obj.get(key)
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except AttributeError:
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try:
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return obj[key]
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except (IndexError, KeyError, TypeError):
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return None
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@register.filter
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def getlist(mapping, key):
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if mapping is None:
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return []
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mapping = list(mapping)
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for value in mapping:
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try:
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yield value.get(key)
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except AttributeError:
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yield None
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@register.filter(name='list')
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def as_list(obj):
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return list(obj)
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@register.filter
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def first(value):
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try:
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return defaultfilters.first(value)
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except TypeError:
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return ''
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@register.filter
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def last(value):
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try:
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return defaultfilters.last(value)
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except TypeError:
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return ''
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