我们从Python开源项目中,提取了以下50个代码示例,用于说明如何使用jinja2.BaseLoader.get_source()。
def get_source(self, environment, template): """Get the template source, filename and reload helper for a template. It's passed the environment and template name and has to return a tuple in the form ``(source, filename, uptodate)`` or raise a `TemplateNotFound` error if it can't locate the template. The source part of the returned tuple must be the source of the template as unicode string or a ASCII bytestring. The filename should be the name of the file on the filesystem if it was loaded from there, otherwise `None`. The filename is used by python for the tracebacks if no loader extension is used. The last item in the tuple is the `uptodate` function. If auto reloading is enabled it's always called to check if the template changed. No arguments are passed so the function must store the old state somewhere (for example in a closure). If it returns `False` the template will be reloaded. """ if not self.has_source_access: raise RuntimeError('%s cannot provide access to the source' % self.__class__.__name__) raise TemplateNotFound(template)
def get_source(self, environment, template): pieces = split_template_path(template) for searchpath in self.searchpath: filename = path.join(searchpath, *pieces) f = open_if_exists(filename) if f is None: continue try: contents = f.read().decode(self.encoding) finally: f.close() mtime = path.getmtime(filename) def uptodate(): try: return path.getmtime(filename) == mtime except OSError: return False return contents, filename, uptodate raise TemplateNotFound(template)
def get_source(self, environment, template): pieces = split_template_path(template) p = '/'.join((self.package_path,) + tuple(pieces)) if not self.provider.has_resource(p): raise TemplateNotFound(template) filename = uptodate = None if self.filesystem_bound: filename = self.provider.get_resource_filename(self.manager, p) mtime = path.getmtime(filename) def uptodate(): try: return path.getmtime(filename) == mtime except OSError: return False source = self.provider.get_resource_string(self.manager, p) return source.decode(self.encoding), filename, uptodate