diff options
Diffstat (limited to 'jinja2/environment.py')
| -rw-r--r-- | jinja2/environment.py | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/jinja2/environment.py b/jinja2/environment.py index cfa7ff1..0b5f957 100644 --- a/jinja2/environment.py +++ b/jinja2/environment.py @@ -88,6 +88,16 @@ def load_extensions(environment, extensions): return result +def fail_for_missing_callable(string, name): + msg = string % name + if isinstance(name, Undefined): + try: + name._fail_with_undefined_error() + except Exception as e: + msg = '%s (%s; did you forget to quote the callable name?)' % (msg, e) + raise TemplateRuntimeError(msg) + + def _environment_sanity_check(environment): """Perform a sanity check on the environment.""" assert issubclass(environment.undefined, Undefined), 'undefined must ' \ @@ -439,7 +449,7 @@ class Environment(object): """ func = self.filters.get(name) if func is None: - raise TemplateRuntimeError('no filter named %r' % name) + fail_for_missing_callable('no filter named %r', name) args = [value] + list(args or ()) if getattr(func, 'contextfilter', False): if context is None: @@ -464,7 +474,7 @@ class Environment(object): """ func = self.tests.get(name) if func is None: - raise TemplateRuntimeError('no test named %r' % name) + fail_for_missing_callable('no test named %r', name) return func(value, *(args or ()), **(kwargs or {})) @internalcode |