Before I go into the garage and find an axe to take to my laptop ... would someone please tell me what I am doing wrong here.
I have a dataset, with 1 single temp-table in it. This table was created-like sports.customer
I have set :tracking-changes on the temp-table to true.
lv_Buffer:table-handle:tracking-changes = true.
I make some changes, and save them to the temp-table record.
I now want to save said changes. Following the guides, I have got this:
def var Changes as handle no-undo.
create dataset Changes.
Changes:create-like(TTDataSet).
Changes:get-changes(TTDataSet).
and here is the code to actually do the changes
[snipped to remove the code to traverse buffers etc]
p_buffer = Changes:get-top-buffer(1).
def var lv_BeforeBuffer as handle no-undo.
def var lv_BeforeQuery as handle no-undo.
def var lv_DataSource as handle no-undo.
lv_BeforeBuffer = p_Buffer:before-buffer.
if valid-handle(lv_BeforeBuffer) then
do on error undo, throw:
create query lv_BeforeQuery.
lv_BeforeQuery:add-buffer(lv_BeforeBuffer).
lv_BeforeQuery:query-prepare(substitute("for each &1" + lv_BeforeBuffer:name)).
lv_BeforeQuery:query-open().
lv_BeforeQuery:get-first().
do while not lv_BeforeQuery:query-off-end:
lv_BeforeBuffer:save-row-changes().
if lv_BeforeBuffer:error then assign lv_BeforeBuffer:rejected = true.
lv_BeforeQuery:get-next().
end.
this code was basically lifted straight out of the manual.
However, when I run it I get the error
"SAVE-ROW-CHANGES for BEFORE buffer BIcustomer requires that the corresponding AFTER dataset member buffer customer be attached to a DATA-SOURCE"
if that's the case then
#1 why the *&&%^% isn't it in the manual / example
#2 how the hell do I fix it ? there is no AFTER table (aftger-buffer is ?)
no hair left
#1: If it's not in the manual log a bug.
#2: Since it's Monday this may ruin your week for you ... the 'normal' and before buffers/tables are linked to each other. So one is the other's before and the other, the other's after
Since there's just one buffer handle type, it will have a before and after attribute. Only one will be populated.
DEFINE TEMP-TABLE ttData BEFORE-TABLE beforeData.
ttData is the BEFORE-TABLE beforeData's AFTER table.
If you want to use SAVE-ROW-CHANGES(), you need to attach a datasource (as one does for FILL operations). It does not have to be the same datasource (although typically is). If you don't use a datasource, I think you need to manually do a BUFFER-COPY from the tt to the db table
So you'd need to
DEFINE DATA-SOURCE srcCustomer FOR sports.Customer.
BUFFER ch-ch-ch-Changes:ATTACH-DATA-SOURCE(DATA-SOURCE srcCustomer:HANDLE, ?).
And DETACH-DATA-SOURCE when you're done.
-- peter
Thanks Peter. I will log a documention bug report
Now that I have managed to work it all out, I've created a couple of classes that handle it for you.
assign p_Dataset = (new dotr.ActiveRecord.DataSet("Name")):Create():AddTable("Customer"):Fill("for each customer no-lock"):handle.it's a little easier to understand