Improvement (dataExporter): Allow EL in exportFuntion

[Hamsterbau]

Hi,

it would be nice to be able to use Expression Language (EL) in exportFunction of a p:column element like in sortBy, filterBy or rendered.
Currently the usage with a method with a fixed signature leads to many problems:

• The default converters cannot be used
• I have to write an extra method for every column using exportFunction (not DRY principle compatible)
• Resource bundles cannot be used
• The UIColumn parameter does not give access to the current row variable
• faces taglibs cannot be used

So i would like to have the ability to use EL in exportFunction, which would make this attribute much more usable.

PS: One similar request, but for another attribute instead alter the current attribute can be found here: https://github.com/primefaces/primefaces/issues/2238.

Have a nice evening,

Daniel

[tandraschko]

+1 - just not much time for every feature on the issue list
so please discuss a possible implementation, create a PR, .., ... or sponsor it

[Hamsterbau]

What means PR? Is it a pull request in the issue tracker?
Than i could do that, perhaps with example code.

Wbr,

Daniel

[Melloware]

This ticket is already open: https://github.com/primefaces/primefaces/issues/2238

And see my pretty cool generic workaround at the bottom.

[Hamsterbau]

Thanks for the hint, but i think i try to override Exporter and use my custom one, because i also need not export numbers as number cells in excel. And than i can also integrate EL evaluation for exportFunction value