old_contents: # -*- coding: utf-8 -*-
  
  from django import template
  from django.contrib.contenttypes.models import ContentType
  from sociallinks.models import SocialLink, SocialLinkGroup
  
  register = template.Library()
  
  
  @register.assignment_tag
  def obj_social_links(obj):
      """return list of social links for obj. Obj is instance of any model
      registred in project
  
      Usage:
      {% obj_social_links user as user_links %}
      {% for link in user_links %}
          <a href="{{ link.link }}" class="{{ link.link_type.css_class }}">
              {{ link.link_type.name }}
          </a>
      {% endfor %}
  
      """
      content_type = ContentType.objects.get_for_model(obj.__class__)
      return SocialLink.objects.filter(
          content_type=content_type,
          object_pk=obj.pk).select_related('link_type')
  
  
  @register.assignment_tag
  def group_social_links(slug):
      """return list of social links for slug
      sociallinks.models.SocialLinkGroup.slug"""
  
      group = SocialLinkGroup.objects.get(slug=slug)
      return SocialLink.objects.filter(
          link_group=group)
  
  
  
new_contents: # -*- coding: utf-8 -*-
  
  from django import template
  from django.contrib.contenttypes.models import ContentType
  from sociallinks.models import SocialLink, SocialLinkGroup
  
  register = template.Library()
  
  
  @register.assignment_tag
  def obj_social_links(obj):
      """return list of social links for obj. Obj is instance of any model
      registred in project
  
      Usage:
      {% obj_social_links user as user_links %}
      {% for link in user_links %}
          <a href="{{ link.link }}" class="{{ link.link_type.css_class }}">
              {{ link.link_type.name }}
          </a>
      {% endfor %}
  
      """
      content_type = ContentType.objects.get_for_model(obj.__class__)
      return SocialLink.objects.filter(
          content_type=content_type,
          object_pk=obj.pk).select_related('link_type')
  
  
  @register.assignment_tag
  def group_social_links(slug):
      """return list of social links for slug
      sociallinks.models.SocialLinkGroup.slug"""
  
      group = SocialLinkGroup.objects.get(slug=slug)
      return SocialLink.objects.filter(
          link_group=group).select_related('link_type')
  
  
  
subject: add select related query for group social links