Template controller to grocery CRUD?

[eluser]web-johnny[/eluser]
[quote author="timj" date="1308087746"][quote author="web-johnny" date="1308044082"]You can use : callback_add_field and callback_edit_field for this.
You can first add a fake "field" to your crud (if you make a callback it will not have any problem).[/quote]

I don't think you understood my comment.

You have a column of prices. Of course you can add a fake field to the right of it and build a function to total the entire column of prices. But the TOTAL calculation would have to iterate on every row. And it would be clunky and confusing for users used to how spreadsheets look and work.

Instead what you'd want is a new row at the bottom where all the column totals may be calculated just once. What would be handy is a ready callback library of basic SQL counting, math [SUM()] and time [NOW()] functions to build these callbacks around.

For myself, I would like the option of adding a row of navigation callbacks, so that I can, for example, limit the query results based on dates. I realize, again, that I could add a fake field... that would have to iterate on each row instead of just once on one row.

Good product.[/quote] Now I understood what do you mean. Yes Its a good suggestion and I will added as a future plan . Thanks.