old_contents: from django import template
  from partner_feeds.models import Partner
  register = template.Library()
  
  @register.assignment_tag
  def get_partners(*args):
      partners = []
      for name in args:
          try:
              partner = Partner.objects.get(name=name)
          except Partner.DoesNotExist:
              continue
          partner.posts = partner.post_set.all().order_by('-date')
          partners.append(partner)
      return partners
new_contents: from django import template
  from partner_feeds.models import Partner, Post
  register = template.Library()
  
  
  @register.assignment_tag
  def get_partners(*partner_names):
      """
      Given a list of partner names, return those partners with posts attached to
      them in the order that they were passed to this function
  
      """
      partners = list(Partner.objects.filter(name__in=partner_names))
      for partner in partners:
          partner.posts = Post.objects.filter(partner=partner)
      partners.sort(key=lambda p: partner_names.index(p.name))
      return partners
  
subject: Update `get_partners` assignment tag to reduce the number of queries