On 27.06.2004 14:46, Colin Paul Adams wrote:
So I started by writing the binding definition. I took the XML Binding sample as a model (using just the repeater bit at the bottom of the page). I shall eventually want to do the date as an aggregate I guess, but for starters I'll just do it as a text field. My uncertainity comes with the time-clause in the grammar. This is optional (we often don't know what time a concert will start, when we first get a date for it). And the finishing time is optional too, but can only be present if the time attribute is present.
So when I wrote the following, I paused for thought:
<fb:on-insert-row> <!-- The insert-node element contains a piece of template XML to be inserted for new rows. Alternatively, you could also add a "src" attribute on the insert-node element pointing to an external source to retrieve the template from. --> <fb:insert-node> <!-- template inserted by the binding for new rows (mapping new nodes) --> <event id="" row-state="new" date="" time="" finish-at="" suppress-recurring=""> <title/><location/> </event> </fb:insert-node> </fb:on-insert-row>
because I am not sure what is going to happen when the form is
submitted. According to the validation criteria, the time attribute cannot be
empty, but it can be missing. likewise finish-at attribute.
Will form submission automatically infer this from the schema, and do
the right thing? Or will I have to write some logic to handle this?
CForms plus data binding is clearly very powerful, but writing the first form is a bit daunting.
You really do not have the simplest requirements ;-)
You can try to remove @time from fb:insert-node/event and add it to fb:on-bind with a fb:value element. Don't know if it works though.
Joerg
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