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重写Python中dict __getitem__,角标查询不存

重写Python中dict __getitem__,角标查询不存

作者: 晴茗 | 来源:发表于2019-11-12 19:36 被阅读0次
    class Storage(dict):
        """
        from web2py
        A Storage object is like a dictionary except `obj.foo` can be used
        in addition to `obj['foo']`.
    
            >>> o = Storage(a=1)
            >>> o.a
            1
            >>> o['a']
            1
            >>> o.a = 2
            >>> o['a']
            2
            >>> del o.a
            >>> o.a
            None
            >>> o['a']
            None
        """
    
        def __getitem__(self, key):
            try:
                return super(Storage, self).__getitem__(key)
            except KeyError, k:
                return None
    
        def __getattr__(self, key):
            try:
                return self[key]
            except KeyError, k:
                return None
    
        def __setattr__(self, key, value):
            self[key] = value
    
        def __delattr__(self, key):
            try:
                del self[key]
            except KeyError, k:
                raise AttributeError, k
    
        def __repr__(self):
            return '<Storage ' + dict.__repr__(self) + '>'
    
        def __getstate__(self):
            return dict(self)
    
        def __setstate__(self, value):
            for k, v in value.items(): self[k] = v
    
    result = {
        "status": 1, "obj_type": 1, "operator_id": 1293589, "operate_time": "2019-03-06 15:18:55", "description": "",
        "creator": "", "dept_name": "\u534e\u4e30\u96c6\u56e2", "id": 315, "number": "0000001", "company_id": 111,
        "dept": {"is_leaf": 0, "adapter_id": "", "abbreviation": "",
                 "search_string": "\u534e\u4e30\u96c6\u56e2:hu\u00e1f\u0113ngj\u00edtu\u00e1n:hfjt",
                 "credit_code": "000", "approve_code": "", "job_id": "", "outer_emp_count": 0, "company_id": 111,
                 "parent_id": "", "fax": "", "operator_id": 1322501, "c_field18": "", "c_field19": "", "postal_address": "",
                 "c_field14": "", "c_field15": "", "c_field16": "", "c_field17": "", "c_field10": "", "business_id": "",
                 "c_field12": "", "number": "0001", "adapter_parent_id": "", "name": "\u534e\u4e30\u96c6\u56e2", "level": 1,
                 "org_type": 10, "job_grade_id": "", "orderno": "", "enabled": True, "org_unit_id": "",
                 "full_name": "\u534e\u4e30\u96c6\u56e2", "description": "", "plan_count": 12, "position_parent_id": "",
                 "outer_part_count": 0, "entry_exit_records": "", "count_emp": 341, "charge_business": "",
                 "compulsory_vacation_days": "",
                 "position_description_index": "", "updater_id": "", "outer_info": "", "post_code": "",
                 "establishment_date": "2019-01-25", "position_sequence_id": "", "tree_id": "646671", "emp_count": 341,
                 "c_field8": "", "c_field9": "", "c_field6": "", "c_field7": "", "c_field4": "", "c_field5": "",
                 "c_field2": "", "c_field3": "", "c_field1": "", "dept_type": "", "modify_time": "", "economic_type_id": "",
                 "registered_address": "111", "duty": "", "is_work_shift": "", "work_shift_years": "",
                 "is_legal_entity": True,
                 "registered_country_id": 650254, "org_full_name": "\u534e\u4e30\u96c6\u56e2",
                 "extend_count": {"inner_part_count": 0, "plan_count": 0, "sub_inner_part_count": 2,
                                  "sub_outer_part_count": 0, "outer_emp_count": 0, "sub_plan_count": 12,
                                  "outer_part_count": 0, "count_emp": 0, "sub_count_emp": 341, "sub_outer_emp_count": 0},
                 "soft_delete": "", "work_content": "", "charge_person_id": "", "main_post": "", "full_number": "",
                 "business_class_id": "", "full_orderno": "", "subordinate_unit_id": "", "plan_manager_org_id": "",
                 "c_field20": "", "contract_body_id": "", "id": 646671, "position_type_id": "",
                 "is_compulsory_vacation": "", "job_step_id": "", "operate_time": "2019-01-25 08:44:49",
                 "need_executive_qualification": "", "position_level_id": "", "invest_class_id": "", "c_field11": "",
                 "begin_date": "1903-01-01", "c_field13": "", "inner_part_count": 2, "charge_position_id": "",
                 "isleaf": False},
        "create_date": "2019-03-06 00:00:00", "dept_id": 646671, "is_deleted": 1, "template_id": "",
        "name": "\u901a\u7528\u6d4b\u8bd5"}
    
    
    
    def convert_to_storage(dict_data):
        storage = Storage()
        for k, v in dict_data.items():
            if not isinstance(v, dict):
                storage[k] = v
            else:
                storage[k] = convert_to_storage(v)
        return storage
    
    aaa = convert_to_storage(result)
    print aaa.dept.extend_count.sub_count_emp
    print aaa["dept"]["ssa"]
    

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