Is there any builtin mechanism in rethinkdb to transform array of objects into key value?

Question

I want to transform

[{"id": 1, "name": "some_name_1", "alias": "alias1"}, {"id": 2, "name": "some_name_2", alias: "alias2"}, {"id": 3, "name": "some_name_3", "alias": "alias3"}]

into

{"1": {"id": 1, "name": "some_name_1", "alias": "alias1"}, "2": {"id": 2, "name": "some_name_2", alias: "alias2"}, "3": {"id": 3, "name": "some_name_3", "alias": "alias3"}}

Is the dictionary key supposed to be the id or the position in the list? — avigil, Jul 09 '18 at 15:53
it should be id, List Comprehension can be the solution but I want some builtin feature something similar to coerce_to — David Mnatsakanyan, Jul 10 '18 at 08:36
@DavidMnatsakanyan Trying to understand more. Any specific reason why you are not fine with *List Comprehension* and looking for something else? — dhilmathy, Jul 10 '18 at 10:10
Just don't what to iterate on the huge list from the client side — David Mnatsakanyan, Jul 10 '18 at 11:27

dhilmathy · Answer 1 · 2018-07-10T14:16:39.497

0

You can use List Comprehension to achieve this.

Code:

dict = [{"id": 1, "name": "some_name_1", "alias": "alias1"}, {"id": 2, "name": "some_name_2", "alias": "alias2"}, {"id": 3, "name": "some_name_3", "alias": "alias3"}]
print (*[{str(i+1):x} for i,x in enumerate(dict)])

EDIT: If Dictionary key should be displayed instead of index,

print (*[{x["id"]:x} for x in dict])

Output:

{'1': {'id': 1, 'name': 'some_name_1', 'alias': 'alias1'}} {'2': {'id': 2, 'name': 'some_name_2', 'alias': 'alias2'}} {'3': {'id': 3, 'name': 'some_name_3', 'alias': 'alias3'}}

edited Jul 10 '18 at 14:16

answered Jul 09 '18 at 13:48

dhilmathy

2,800
2
21
29

enumerate is unnecessary since you should be using `x['id']` as the key – avigil Jul 10 '18 at 13:29

Is there any builtin mechanism in rethinkdb to transform array of objects into key value?

1 Answers1