JSON parameter is returned wrongly by the JsonParameter class

[Endre Karlson]

If you use a parameter with the json type and you pass for example {"a": 1} as the value when creating a stack and then do heat stack-show <stack> with that value it will return "{u'a': '1}" instead of '{"a": 1}.

This renders the JsonParameter invalid when it's used by tools that rely on heat preserving the values in the json blob or so.

[Steve Baker (steve-stevebaker)]

Could you please attach a template which demonstrates this?

[jan grant (jan-grant)]

Pretty much any template with a parameter will show this. Look at the returned (http) result from a shack show.

Looks like someone already thought about this - lines 52 and 53 of heat.api.openstack.v1.views.stacks_view has this:

            #elif key == engine_api.STACK_PARAMETERS:
            # return key, json.dumps(value)

Not clear why this was commented out.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/120084
Committed: https://git.openstack.org/cgit/openstack/heat/commit/?id=391365852740f8312347b326cb8b53720c3df03e
Submitter: Jenkins
Branch: master

commit 391365852740f8312347b326cb8b53720c3df03e
Author: Endre Karlson <email address hidden>
Date: Tue Sep 9 15:18:38 2014 +0200

    Make str(json_param) return string vs python

    Closes-Bug: #1366798

    Change-Id: I3f435932787662cb1bfa91bd5a84c21cf6ddf9d0