AngularJS Add to Item Bucket Generating too many simultaneous requests

[Chris Sharp]

Related to other AngularJS grid-related bugs, PINES has found that the action of adding a grid's items to a bucket generates enough simultaneous calls to open-ils.actor that it maxes out those drones, sometimes resulting in the open-ils.actor listener dropping off the network in the process.

The specific call appears to be here:

https://git.evergreen-ils.org/?p=Evergreen.git;a=blob;f=Open-ILS/web/js/ui/default/staff/cat/bucket/copy/app.js;h=4216128ca1aacb83a04639885874880fe0469dbd;hb=HEAD#l262

[Chris Sharp (chrissharp123)]

Beginnings of a branch here, mostly copypasta-ed from work on bug 1896285 and not yet tested:

 https://git.evergreen-ils.org/?p=working/Evergreen.git;a=shortlog;h=refs/heads/user/csharp/lp1932051_fix_angjs_item_buckets

[Chris Sharp (chrissharp123)]

IRC discussion with Bill E.'s confirmation of the issue and identifying additional places where these calls need attention: http://irc.evergreen-ils.org/evergreen/2021-07-02#i_486185

[Jeff Davis (jdavis-sitka)]

Working branch user/jeffdavis/lp1932051_fix_angjs_item_buckets contains (1) my signoff for Chris's commits, which prevent parallel requests when adding items to a bucket via the Item Buckets UI; and (2) an additional commit which serializes requests when adding to an item bucket via Item Status:

https://git.evergreen-ils.org/?p=working/Evergreen.git;a=shortlog;h=refs/heads/user/jeffdavis/lp1932051_fix_angjs_item_buckets

Add to Item Bucket via Item Status could probably use a progress bar now, but I believe this fixes the issue.

[Chris Sharp (chrissharp123)]

This works well after running in PINES production for nearly a week. Pushed to master, rel_3_6, and rel_3_7. Thanks, Jeff!