manufactureplan_tags.py 文件源码

def render(self, context):
        try:
            value_missing = False
            value = self.variable.resolve(context, True)
        except VariableDoesNotExist:
            no_value = True
            value_missing = None

        for tests, nodelist in self.cases:
            if tests is None:
                return nodelist.render(context)
            elif not value_missing:
                for test in tests:
                    test_value = test.resolve(context, True)
                    if value == test_value:
                        return nodelist.render(context)
        else:
            return ""