69 lines
2.1 KiB
Python
69 lines
2.1 KiB
Python
import logging
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import json
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from django import template
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from django.conf import settings
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from django.utils.html import escape
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from django.core.serializers import serialize
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from django.core.serializers.json import DjangoJSONEncoder
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from django.db.models.query import QuerySet
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from django.utils.safestring import mark_safe
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from classytags.arguments import Argument
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from classytags.core import Options, Tag
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from .. import utils
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register = template.Library()
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# originally copied from django-jsonify(https://bitbucket.org/marltu/django-jsonify/)
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# released under a three-clause BSD License by Marius Grigaitis
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@register.filter
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def jsonify(obj):
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if isinstance(obj, QuerySet):
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return mark_safe(serialize('json', obj))
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return mark_safe(json.dumps(obj, cls=DjangoJSONEncoder))
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@register.tag
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class RenderBlurp(Tag):
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name = 'render_blurp'
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options = Options(
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Argument('name', resolve=False),
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)
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def render_tag(self, context, name):
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renderer = utils.resolve_renderer(name)
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if not renderer:
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return ''
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template = renderer.render_template()
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context = renderer.render(context)
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try:
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if not hasattr(template, 'render'):
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template = template.Template(template)
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return template.render(context)
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except Exception, e:
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logging.getLogger(__name__).exception('error while rendering %s',
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renderer)
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msg = ''
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if settings.TEMPLATE_DEBUG:
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msg += 'error while rendering %s: %s' % (renderer, e)
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msg = '<pre>%s</pre>' % escape(msg)
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return msg
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@register.tag
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class BlurpNode(Tag):
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'''Insert content generated from a blurp block and render inside template'''
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name = 'blurp'
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options = Options(
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Argument('name'),
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blocks=[('endblurp', 'nodelist')])
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def render_tag(self, context, name, nodelist):
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context.push()
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utils.insert_blurp_in_context(name, context)
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output = self.nodelist.render(context)
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context.pop()
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return output
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