How to construct a csv string from a dictionary

[The Gripmaster]

I have a dictionary like this

customers:
  abc:
    id: 1
    status: active
  def:
    id: 2
    status: inactive
  ghi:
    id: 3
    status: active
  jkl:
    id: 4
    status: active

What's the best way to construct a string like below of the active customers only?

abc,ghi,jkl

[Matt Martz]

Something like the following would do it, with your current data structure.

{% for k, v in customers|dictsort if v.status == 'active' %}{{ k }}{% if not loop.last %},{% endif %}{% endfor %}

If you rewrote your data structure to look like:

customers:

    - name: abc:

      id: 1

      status: active

Then it could be:

{{ customers|selectattr('status', 'match', 'active')|map(attribute='name')|join(',') }}

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Matt Martz
@sivel
sivel.net