[AgileWiki] The Columns Ledger Section

[Bill la F. <bil...@su...>]

Now every rolon which has a table for its document content has a table 
descriptor unit assigned as its descriptor unit, where all table 
descriptor units have as their assigned descriptor unit, the 
TableDescriptorUnitDescriptorUnit. And there will be a lot of table 
descriptor units, one for every kind of table.

Every table descriptor unit has a Ledger Section rolon named Columns. 
And the descriptor unit assigned to all Column Ledger Sections is always 
the ColumnsDescriptorUnit. (I'm getting a bit dizzy here, methinks.)

Now the Columns Ledger Section is itself a table, so of course the 
descriptor unit assigned to the ColumnsDescriptorUnit is the 
TableDescriptorUnitDescriptorUnit. (Obviously, right?) But enough fun. 
There really is a point I want to make here...

The Columns Ledger Section of every table descriptor unit has two (2) 
columns: ColumnName and BriefDescripton. Hey, that's a start, but I can 
think of two more columns that would be very helpful: Required and 
FieldType.

Now there is a bunch of work to be done here. Sougata has already begun 
work on a table-based single-entry accounting system. And I've suggested 
to Niall that a table sort on a column would be useful. But there's much 
more. For example, we need a command for adding rows to a table. The 
form for this command would be composed using the information in the 
Columns Ledger Section. In addition to sorting on a column, we also need 
to be able to manually reorder rows. And we also need to be able to 
remove a row from a table, or edit the content of a row.

Tables are very important here. They are used in the configuration of 
the AgileWiki, and will likely be central to most applications. And the 
good thing is that there is a very limited API that you need to use to 
work with tables. (Too many things required a very broad-based knowledge 
of the whole of the AgileWiki, but tables is not one of them.)

Bill