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- import string
- from django.core.exceptions import ImproperlyConfigured
- from django.template import Origin, TemplateDoesNotExist
- from django.utils.html import conditional_escape
- from .base import BaseEngine
- from .utils import csrf_input_lazy, csrf_token_lazy
- class TemplateStrings(BaseEngine):
- app_dirname = 'template_strings'
- def __init__(self, params):
- params = params.copy()
- options = params.pop('OPTIONS').copy()
- if options:
- raise ImproperlyConfigured(
- "Unknown options: {}".format(", ".join(options)))
- super().__init__(params)
- def from_string(self, template_code):
- return Template(template_code)
- def get_template(self, template_name):
- tried = []
- for template_file in self.iter_template_filenames(template_name):
- try:
- with open(template_file, encoding='utf-8') as fp:
- template_code = fp.read()
- except FileNotFoundError:
- tried.append((
- Origin(template_file, template_name, self),
- 'Source does not exist',
- ))
- else:
- return Template(template_code)
- raise TemplateDoesNotExist(template_name, tried=tried, backend=self)
- class Template(string.Template):
- def render(self, context=None, request=None):
- if context is None:
- context = {}
- else:
- context = {k: conditional_escape(v) for k, v in context.items()}
- if request is not None:
- context['csrf_input'] = csrf_input_lazy(request)
- context['csrf_token'] = csrf_token_lazy(request)
- return self.safe_substitute(context)
|
