title: How to get all related objects in django model ForeignKey and OneToOneField
body: <p>I'm using django 1.9.
  I have the following Django models:</p>
  
  <pre><code>@python_2_unicode_compatible
  class Projects(models.Model):
      index = models.IntegerField(blank=True,default=1)
      year = models.CharField(max_length=255, blank=True)
      title = models.CharField(max_length=255, blank=True)
      description = models.TextField(blank=True)
  
      def __str__(self):
          return  '%s, %s, %s, %s' %(self.index,self.year,self.title,
                 self.description)
  @python_2_unicode_compatible
  class Awards(models.Model):
      title = models.CharField(max_length=255, blank=True)
  
      def __str__(self):
          return '%s' %( self.title)
  
  
  @python_2_unicode_compatible
  class Images(models.Model):
      projects = models.ForeignKey(Projects,null=True,blank=True, related_name='images_projects')
      awards =  models.OneToOneField(Awards,null=True,blank=True,related_name='images_awards')
      title = models.CharField(max_length=255, blank=True)
      file = models.ImageField(upload_to='upload_images/')
      uploaded_at = models.DateTimeField(auto_now_add=True)
  
      def __str__(self):
          return '%s, %s' %(self.file, self.pk)
  </code></pre>
  
  <p>1)I'm trying to get all the model objects Projects and model objects Images that are related to the model Projects    <code>Projects.objects.all().select_related('images_projects')</code>
  As a result, I get only model objects Projects. </p>
  
  <p>2) I want to get all the objects of the model Awards and associated fields in the Images. </p>
  
  <pre><code> Awards.objects.all().prefetch_related('images_awards')
  </code></pre>
  
  <p>As a result, I receive only all fields of the Award model.</p>
  
  <p>How to get related fields together with all objects of the main model in my 2 cases?</p>