Task enter screen: Don't load contexts via ajax (autocomplete)

[dnrce]

Migrated from the original issue at https://www.assembla.com/spaces/tracks-tickets/tickets/1188

The context field on task enter screen is set to autocomplete via ajax. This request takes long time and slows down task entering. I suggest to preload them (don't do a remote autocomplete), because users normally won't have a huge load of contexts. This could also be done for projects.

I can implement this, if there aren't any objections.

Some notes for the implementer: List has to be extended if a new context is created.

Originally reported by u2ix on August 8, 2011 at 13:06:25 (+0000)

[dnrce]

On August 8, 2011 at 08:38:04 (+0000), lrbalt commented:

it's tricky to get this right. We used to have this in tracks, but managing the preloaded lists has corner cases. I'll accept a patch...

[dnrce]

On August 8, 2011 at 11:08:00 (+0000), u2ix commented:

But I think it will worth the effort, because...

• entering tasks will be more productive
• it reduce the cpu load of the server

[dnrce]

On October 10, 2011 at 18:26:08 (+0000), popsch commented:

I would welcome this feature, because it speeds up data entry.

A clear problem though is when people work with multiple tabs where they create a new context in one tab and expect it to be then instantaneously present in the autocomplete in the other tab (without another reload).

[dnrce]

On October 10, 2011 at 22:05:05 (+0000), u2ix commented:

I begun with this ticket here: https://github.com/u2ix/tracks/tree/feature-autocomplete ([[url:https://github.com/u2ix/tracks/compare/TracksApp:master...feature-autocomplete|diff]])

@popsch I could add an update to TodoController#check_deferred which is called via ajax periodically. But this won't be 'instantaneously'. Do you think this is a big problem?