[galaxy-dev] GTF, GFF and gff_filter_by_attribute

Hi,

i have found a small problem in gff_filter_by_attribute and not sure how to fix it properly.

gff_filter_by_attribute.xml accepts gff data types but crashes if you run it with gff. Because metadata.attribute_types is not defined for gff and the dictionary is empty. For gtf files it works, because gtf has metadata.attribute_types defined.

Should we extend the gff data type to also set metadata.attribute_types or is it for some reason better to create a gff<->gtf converter and chance gff_filter_by_attribute.xml to only accept gtf files?

Thanks! Bjoern