improve resource loading performance when updating

[atitan]

The original creates a lot of N+1 queries when collection set is large.

Query everything in the first place and assign them.

[zorab47]

Nice! Is there a maximum number of records where performance degrades?

[atitan]

Currently we have 300+ categories listing as a tree.
It takes about 15~20 seconds to update for every single drag in the admin panel.

I was able to cut it down to 2 seconds with this patch.

[zorab47]

Making the method of loading records configurable could work, but loading all records shouldn't be the default.

…

On Wed, Aug 29, 2018 at 22:32 Sh Lin ***@***.***> wrote: Currently we have 300+ categories listing as a tree. It takes about 15~20 seconds to update for every single drag in the admin panel. I was able to cut it down to 2 seconds with this patch. — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#77 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AABiBjEYPdoGvh2cCfRUE4FS3IFAxiCmks5uV1y5gaJpZM4WFNIr> .