这似乎是一项如此简单的任务,但它让我望而却步......
class ViewAllDogs(webapp2.RequestHandler):
""" Returns an array of json objects representing all dogs. """
def get(self):
query = Dog.query()
results = query.fetch(limit = MAX_DOGS) # 100
aList = []
for match in results:
aList.append({'id': match.id, 'name': match.name,
'owner': match.owner, arrival_date':match.arrival_date})
aList.append({'departure_history':{'departure_date': match.departure_date,
'departed_dog': match.departed_dog}})
self.response.headers['Content-Type'] = 'application/json'
self.response.write(json.dumps(aList))
以上,我迄今为止最好的尝试,让我:
[
{
"arrival_date": null,
"id": "a link to self",
"owner": 354773,
"name": "Rover"
},
{
"departure_history": {
"departed_dog": "Jake",
"departure_date": 04/24/2017
}
},
# json array of objects continues...
]
我想要得到的是departure_history嵌套:
[
{
"id": "a link to self...",
"owner": 354773,
"name": "Rover",
"departure_history": {
"departed_dog": "Jake",
"departure_date": 04/24/2017
},
"arrival_date": 04/25/2017,
},
# json array of objects continues...
]
我已经尝试了一堆不同的组合,看了json docs,python27 docs,没有快乐,并且用这个太多时间烧了 . 关于这个主题,我在很多相关的SO帖子中得到了这么多 . 提前致谢 .
2 回答
你可以简化一点:
这似乎有点hackish,但它的确有效 . 如果你知道更好的方法,请告诉我 . 谢谢 .