[ckan-dev] CKAN harvester harvests datasets with type "harvest"

[Stefan Oderbolz]

Hi there,

On my CKAN instance I was unable to reach the /harvest page to manage the
harvest sources. I ran across a strange error in the logfile:

[error] [client XX.XX.XX.XX] Error - <class
'jinja2.exceptions.UndefinedError'>: 'dict object' has no attribute 'status'

When I investigated the templates of the ckanext-harvest extension, I found
some occurances of "status" and I was finally able to find the ones causing
this exception. I added checks to the templates to make them robust against
this it, here is my pull request:
https://github.com/okfn/ckanext-harvest/pull/60

When I was finally able to see the harvest page again, I saw what likely
caused the error: I run the harvester against another CKAN instance. This
other instance has itself some customer harvesters of mine to load data.
Now it seems, that the CKAN-CKAN harvester also harvests the harvester
sources (instead of ignoring them as I expected). These "new" harvest
sources took down the harvest page because they didn't have a status,
because they actually only exist on my 2nd instance.

I think this is a bug, or am I missing a flag to configure whether or not
to harvest the "harvest" datasets?

If someone can point me to the right direction, I willing to provide a pull
request to fix it. My guess would be, that the API should not return
harvest sources or that we should introduce a new configuration option for
this.

Best Regards
Stefan

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