[JBoss-user] [JBoss Seam] - Re: How to access datatable row from a converter. All is co

[petemuir <do-...@jb...>]

I would suggest using a Validator to do validation, not a Converter (concept clarity, aviods a pointless getAsString() method).

A few ideas:

I'm not sure you can get anything except the value in this case - the component and its parent (etc) are of no use. My best suggestion is to write a Facelets ValidateHandler.  This would then allow you to do

<my:validateLimit pk="#{couplingL.id}" />

Then within the ValidateHandler create a new validator with a field containing the pk.  This could then be looked up using a EL or Seam component accessed programmatically or JNDI or ... BUT I don't know how well this will play with components in datatables.

Another way to do the same is to make validateLimit a non-rendering component (with componenthandler) and have it attach a validator to its parent with the pk field set (which I recall having more luck with than the above due to state saving stuff).

Or perhaps you could do the validation inside a backing bean access method when the whole datatable is available, but then you have problems attaching the FacesMessage onto the correct table row.

It would be good if you reach a solution if you share it :)

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