为什么从资源API获取的运单号与数据库中记录的运单号不同？

Question

I used resource_show inCKAN 2.7.3 API docs to get metadata from specific resources. In my tracking_summary table, I have some resource which has tracking number larger than 0. However, when I use resource_show with {'include_tracking': True} , it shows both recent and total are 0.

My resource record in tracking_summary table looks like:

                                                       url                                                       | running_total | recent_views 
-----------------------------------------------------------------------------------------------------------------+---------------+--------------
/dataset/d5cd38f4-03df-450e-9eb8-4967bc9741da/resource/844625fb-80a9-445c-85e7-5be8f10ec57b/download/test.csv    |             1 |            1

I verified that I have already ran the command of paster tracking update and paster search-index rebuild . I don't know what am I missing now.

Answer 1

I found out the cause. If we look at the the url we stored in tracking_summary table, it does not contain the http schema and domain: http://example.ckan.com . However if we are querying a resource from resource table, the url will contain the full http url. Also, when you tried to call resource_show API with {'include_tracking': True} in your application, the get_for_resource(cls, url) in Tracking model will refer to the full url instead of the partial one. So if we store the partial one, the get_for_resource will fail at the line data = obj.filter_by(url=url).order_by(text('tracking_date desc')).first() . Therefore, when we save resource url in tracking_summary , we should store the full one such as: http://example.ckan.com/dataset/<package_id>/resource/<resource_id>/<file_name> .