Battling the TableGrid-Beast

[Wolfgang Hübner]

Hi,

i am currently battling the TableGrid to make it useful for local data that is not mirrored in a database but is held inside an array of the browser. The things I managed are:

1. Upgraded code to work with prototype 1.7. Removed "var self=this" in TableGrid.js and used proper binding instead.
   
2. Sorting works without remote url. Currently only a simple sort via < and > is done across the elements.
3. The modification markers remain after sorting. I extended this.modifiedRows so it holds Objects in a form of { rownumber, [ modifiedCellId, modifiedCellId, ...]} for this purpose.
4. A heavy bug inside _applyHeaderButtons removed: "element.observe("click"...)" was called inside "element.observe("mousemove"...)", thereby flooding the header with "click"-observers everytime the mouse ran over it. I am removing the "click"-handlers inside now before adding new ones.
   

Still unchecked:

1. Pager
   

Still broken:

1. Adding and deleting columns. This is going to be really tricky, since the TableGrid keeps track of deleted and added cells in extra arrays. Sorting is going to be fun....
   

[Pablo Aravena]

Hi Wolfgang

That is excellent, did you check out the source code from github?

Currently, I'm rewriting the code in coffeescript and jquery but still
not getting to TableGrid.js part.

Thanks a lot for your help

Regards
Pablo

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[Wolfgang Hübner]

Hi.

Yes, I made a fork on Github. I cannot check my code back to the fork... seems I don't really understand GitHub ^^ Maybe files are locked or need your approval?

Anyway, news on the progress:

1. The table headers work correctly with IE now. (Stupid IE fires the events "mousemove" and "click" simultaneously *siiigh*)
2. Sorting on local data keep the "new cell" markers.
3. Inserted cells are automatically marked with "new cell" markers for each cell ... and that's why the "save"-Button works correctly now ;-)
4. Keeping the page of the pager when a sort is executed on DB/Backend data.
5. Shifted the localization of the Date-Fields from Date.js to i18n.js.

What I'm about to do next:

1. Installing an option to make the first row "fixed". That will be tricky, since I have to render this row outside the table so it stays visible, but synchronize its vertical scrolling with the table. 
2. Adding a filter field. I'll start with a primitive one without "filtering while you type".
   

I'll keep you informed on how it went. Best wishes,

Wolfgang

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