How to migrate LinkPlugin

[tschale]

Only links from FilerLinkPlugin are migrated to FilerLink2Plugin. Link-instances can be migrated in the same way, but as the fieldnames differ, the links need to be specifically migrated (I only had external_links or internal_links), e.g.:

old_links = Link.objects.all()
for old_link in old_links:
    cmsplugin = CMSPlugin.objects.get(id=old_link.cmsplugin_ptr_id)
    Link.objects.filter(id=old_link.id).delete()
    
    link = FilerLink2Plugin(cmsplugin_ptr=cmsplugin)
    link.__dict__.update(old_link.__dict__)
    link.plugin_type = 'FilerLink2Plugin'
    if old_link.external_link:
        link.url = old_link.external_link
    if old_link.internal_link:
        link.page_link = old_link.internal_link
    link.save()
    link.parent.numchild += 1
    link.parent.save()