glue_autolinker_for_catalogs.py

from glue.core import Data, DataCollection
from glue.core.component_link import ComponentLink
for i,d1 in enumerate(dc):
    for j,d2 in enumerate(dc):
        if j>i:#d1.label != d2.label:
            print('\n',d1.label,' <---> ',d2.label,'\n')
            comp1 = d1.components
            comp2 = d2.components
            for c1 in comp1:
                for c2 in comp2:
                    if (c1.label==c2.label):
                        cord1 = 'Coord' in str(type(d1.get_component(c1)))
                        cord2 = 'Coord' in str(type(d2.get_component(c2)))
                        if not (cord1 or cord2):
                            print(c2.label,' <> ',c1.label)
                            link=ComponentLink([d2.id[c2]],d1.id[c1])
                            dc.add_link(link)
        else:
            pass

This little piece of code will link together all components with identical names from every data collection currently loaded. It's purpose is to link columns of catalogs. It will ignore coordinate components because those might use special linkers and I didn't feel like thinking about that. In any case, there are usually only a few coordinate components and those can be done manually 😄