django.template.loaders.base 源代码

from django.template import Template, TemplateDoesNotExist


[文档]class Loader: def __init__(self, engine): self.engine = engine
[文档] def get_template(self, template_name, skip=None): """ Call self.get_template_sources() and return a Template object for the first template matching template_name. If skip is provided, ignore template origins in skip. This is used to avoid recursion during template extending. """ tried = [] for origin in self.get_template_sources(template_name): if skip is not None and origin in skip: tried.append((origin, 'Skipped')) continue try: contents = self.get_contents(origin) except TemplateDoesNotExist: tried.append((origin, 'Source does not exist')) continue else: return Template( contents, origin, origin.template_name, self.engine, ) raise TemplateDoesNotExist(template_name, tried=tried)
[文档] def get_template_sources(self, template_name): """ An iterator that yields possible matching template paths for a template name. """ raise NotImplementedError( 'subclasses of Loader must provide a get_template_sources() method' )
def reset(self): """ Reset any state maintained by the loader instance (e.g. cached templates or cached loader modules). """ pass