Given an IATI (activity) identifier, find the activity (efficiently!)

[andylolz]

Doing this efficiently means leaning on the rule that all activity IDs must be prefixed by the publisher’s org ID.

E.g.:

import iatikit


activity_id = 'GB-COH-07676886-999999'

activity = iatikit.activities().find(iati_identifier=activity_id)

if activity:
    print('success! Found activity with IATI identifier: "{}"'.format(activity_id))
else:
    print('failed! Could not find an activity with IATI identifier: "{}"'.format(activity_id))

# failed! Could not find an activity with IATI identifier: "GB-COH-07676886-999999"

[andylolz]

Obviously this sort of thing is already possible:

for p in iatikit.publishers():
    activity = p.activities.find(iati_identifier=activity_id)
    if activity:
        break

This would be the way to do it inefficiently. I’m looking for the quick way!

[andylolz]

Done in d32bc52.

[andylolz]

So, this now works, and is quite fast:

import iatikit


activity_id = 'GB-COH-07676886-999999'

try:
    activity = iatikit.data().activities.find(iati_identifier=activity_id, fast=True)
    print('success! Found activity with IATI identifier: "{}"'.format(activity_id))
except IndexError:
    print('failed! Could not find an activity with IATI identifier: "{}"'.format(activity_id))

# failed! Could not find an activity with IATI identifier: "GB-COH-07676886-999999"

[andylolz]

Reopening because I removed this feature. It was experimental and had some problems.

[andylolz]

One of the problems here is: publishers can change their org ID, but they don’t declare this at org level (either in their org metadata or in their org file). So it’s non-trivial to do a fast lookup for activities that use old org IDs.