Bug #8353

A group by column would be very useful

Details

Request #8353	A group by column would be very useful
Submitted	2006-08-03 16:47 UTC
From	pear at simonellistonball dot com
Status	Wont fix
Package	Structures_DataGrid
PHP Version	Irrelevant
OS	n/a
Roadmaps	(Not assigned)

Comments

[2006-08-03 16:47 UTC] pear at simonellistonball dot com

Description:
------------
A nice additional feature would be to add a means to groups
by a column. For example:

--------------------------
| group | record entries |
|------------------------|
| head1 | record entry1 |
| head1 | record entry2 |
| head2 | record entry3 |
| head2 | record entry4 |
| head2 | record entry5 |
--------------------------

to:

--------------------------
| group | record entries |
|------------------------|
| head1 |
| record entry1 |
| record entry2 |
| head2 |
| record entry3 |
| record entry4 |
| record entry5 |
--------------------------

Acheived by something like

$datagrid->groupBy('group');

[2006-08-03 17:08 UTC] olivierg at php dot net

This sort of feature is already partly addressed in bug #4565.

However I think such "record grouping" is a rather bad idea.

What you are asking for is a "Data Tree" not a "Data Grid". The former is based on _hierarchical_ data sources, while a DataGrid is based on _tabular_ data sources. This is conceptually different.

Your groupBy() method looks nice and simple. However, I believe it is likely to bloat Structures_DataGrid and its drivers with endless complexity.

We could discuss this some more, however I believe a whole new Structures_DataTree package would be a better place to do what you want.

[2006-08-04 22:01 UTC] olivierg at php dot net

Okay, we won't fix this. Thanks for your report anyway.