ArrayField 和 JSONField 在 Django 中作为 base_field

Question

我有一个 GooglePlace 模型，其中包含一个字段来存储 address_components 由 Google Places API.

返回

model.py

address_components = ArrayField(JSONField(), null=True, blank=True)

我正在尝试像这样存储数据

address_components = [component for component in google_place_details.get("address_components")]

但是我收到了这个错误：

column "address_components" is of type jsonb[] but expression is of type text[] LINE 1: ...

'2018-04-26T07:49:02.101395+00:00'::timestamptz, ARRAY['{"l... ^ HINT: You will need to rewrite or cast the expression.

我尝试了json.dumps每个组件，编码。但我想我错过了一些愚蠢的东西。

任何帮助将不胜感激

这是示例响应：

"address_components":[  
   {  
      "long_name":"Chennai",
      "short_name":"Chennai",
      "types":[  
         "locality",
         "political"
      ]
   },
   {  
      "long_name":"Ramagiri Nagar",
      "short_name":"Ramagiri Nagar",
      "types":[  
         "sublocality_level_2",
         "sublocality",
         "political"
      ]
   },
   {  
      "long_name":"Velachery",
      "short_name":"Velachery",
      "types":[  
         "sublocality_level_1",
         "sublocality",
         "political"
      ]
   },
   {  
      "long_name":"Chennai",
      "short_name":"Chennai",
      "types":[  
         "administrative_area_level_2",
         "political"
      ]
   },
   {  
      "long_name":"Tamil Nadu",
      "short_name":"TN",
      "types":[  
         "administrative_area_level_1",
         "political"
      ]
   },
   {  
      "long_name":"India",
      "short_name":"IN",
      "types":[  
         "country",
         "political"
      ]
   },
   {  
      "long_name":"600042",
      "short_name":"600042",
      "types":[  
         "postal_code"
      ]
   }
],

Answer 1

您不需要将 JSON 数据包装在 ArrayField 中。您可以将 address_components 列表直接存储到 JSONField.

Answer 2

这是一个已知错误 https://code.djangoproject.com/ticket/28291。

我已将我的模型重构为 JSONField()

发件人：address_components = ArrayField(JSONField(), null=True, blank=True)

收件人：address_components = JSONField(null=True, blank=True)

ArrayField 和 JSONField 在 Django 中作为 base_field

ArrayField with JSONField as base_field in Django

django

json

django-models

models

python-3.x