It’s not obvious how I write back changes to the
server. How does this work? (We are running Ruby on Rails on our server, not
PHP)
dhtmlxGrid has two ways of saving data:
a) By using
dataProcessor library, this way for each action in tree (adding/deleting/editing)
related event handler generates AJAX call to server side. The guide describes
which vars are sent to server for each type of call. You only need to implement
the correct DB updates for specified AJAX calls.
samples/savedata_grid.html
In case of
Rails framework adapting dataprocessor can be a complex task, because naming
convention used for data saving is working with common kinds of URLs. Attached
file demonstrates custom server side code, it is still PHP - but it has a lot
of comments.
b) By
serialization. dhtmlxGrid can be serialized back to XML and sent to server
(sending routine is not implemented in grid and must be implemented manually),
where XML can be parsed, data extracted and DB updated.
We have an experimental version of third solution - form integration,
grid integrates in surrounding tag and include all ( changed )
values in form scope on submit