mirror of https://github.com/django/django.git
Added jinja2 template backend.
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import sys
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from django.conf import settings
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from django.template import TemplateDoesNotExist
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from django.utils import six
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from django.utils.module_loading import import_string
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from jinja2 import (
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DebugUndefined, FileSystemLoader, TemplateNotFound, Undefined)
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from .base import BaseEngine
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from .utils import csrf_input_lazy, csrf_token_lazy
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class Jinja2(BaseEngine):
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app_dirname = 'jinja2'
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def __init__(self, params):
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params = params.copy()
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options = params.pop('OPTIONS').copy()
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super(Jinja2, self).__init__(params)
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environment = options.pop('environment', 'jinja2.Environment')
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environment_cls = import_string(environment)
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options.setdefault('autoescape', True)
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options.setdefault('loader', FileSystemLoader(self.template_dirs))
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options.setdefault('auto_reload', settings.DEBUG)
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options.setdefault('undefined',
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DebugUndefined if settings.DEBUG else Undefined)
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self.env = environment_cls(**options)
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def from_string(self, template_code):
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return Template(self.env.from_string(template_code))
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def get_template(self, template_name):
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try:
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return Template(self.env.get_template(template_name))
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except TemplateNotFound as exc:
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six.reraise(TemplateDoesNotExist, TemplateDoesNotExist(exc.args),
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sys.exc_info()[2])
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class Template(object):
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def __init__(self, template):
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self.template = template
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def render(self, context=None, request=None):
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if context is None:
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context = {}
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if request is not None:
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context['request'] = request
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context['csrf_input'] = csrf_input_lazy(request)
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context['csrf_token'] = csrf_token_lazy(request)
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return self.template.render(**context)
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