validators.py 文件源码

def _resolve_coerce(self, schema):
        """add coerce rules to convert datatypes of int and float,
        recusively using the rules combinations of cerberus:
        {TERM : {RULE: --> str (STOP)
                       --> list/Sequence --> str (STOP)
                                         --> dict => (if type: ADD) + RECALL
                       --> dict/Mapping => (if type: ADD) + RECALL
                      }}
        """
        for term, rules in schema.items():
            if isinstance(rules, _str_type):
                continue
            elif isinstance(rules, Sequence):
                for subschema in rules:
                    if isinstance(subschema, Mapping):
                        if 'type' in subschema.keys():
                            self._add_coerce(subschema)
                        self._resolve_coerce(subschema)
            elif isinstance(rules, Mapping):
                if 'type' in rules.keys():
                    self._add_coerce(rules)
                self._resolve_coerce(rules)
            else:
                NotImplemented