jinja groupby with iteritems()

I have a dictionary

a:
attr1: abc
attr2: fddf
b:
attr1: abc
attr2: djfkdjf
...


I want to group by 'attr1'. I know I can do the following

groupby('attr1') %
something
% endfor %


But this is not what I want, because when I use values(), I lose the keys.

I need to use iteritems(), but it returns a list of tuples, which won't work with groupby

2 Answers
2

I believe that dict2items | groupby('value.attr1') will do what you want, although due to the lack of items2dict, you'll have to glue the "value" side of the answer back together by hand:

dict2items | groupby('value.attr1')

items2dict

- set_fact:
reassembled: |
dict2items
% set a_key = grouper[0] %
% set d = dict() %
% for it in grouper[1] %
% set _ = d.update(it["key"]: it["value"]) %
% endfor %
the key = a_key and d= d
% endfor %


I'll wait patiently for techraf to point out the more succinct way of doing that, but since no one else was chiming in, I thought I'd take a stab at it.

It turns out that groupby supports index. Instead of values() use items()

I achieved it by this

groupby('1.attr1') %
something
% endfor %


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