django - sorl-thumbnail not save cache -


i used sorl-thumbnail. when viewed modern template, path /media/cache/25/b8/25b8886a95680ecb25d29cf67f4ba131.jpg displayed , thumbnail image not saved. mysetting

base_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))  templates_dirs = (os.path.join(base_dir,'templates'),)  debug = true  template_debug = true  thumbnail_debug = true  allowed_hosts = []    installed_apps = [                  ....      'django.contrib.staticfiles',      'blog',      'sorl.thumbnail',  ]      # static files (css, javascript, images)      # https://docs.djangoproject.com/en/1.10/howto/static-files/  base_dir = os.path.dirname(os.path.abspath(__file__))  static_url = '/static/'  static_root = os.path.join(base_dir,'static')  media_url = '/media/'  media_root = os.path.join(base_dir,'/media')
models

from django import models form sorlthumbnail import imagefield  class post(models.model):     author = models.foreignkey('auth.user')     title = models.charfield(max_length=200)  class postimage(models.model):     def image_path(self,filename):         ruta = "postimage/%s/%s" % (self.picture,str(filename))         return ruta      post = models.foreignkey('blog.post',related_name='image_set')     picture = models.imagefield(upload_to=image_path)      def __unicode__(self):         return self.picture     class meta:         verbose_name = "con"         verbose_name_plural = "config"

mytempleat 

    {% load thumbnail %}      {%block content%}          {% thumbnail post.image_set.all "40x40" crop="80% top" im %}          <div>              <img src="{{ im.url }}">            </div>          {% endthumbnail %}              {% image in post.image_set.all %}              {% thumbnail post.image_set.all "50x100" im %}                <img src ="{{im.url}}" >                {% endthumbnail %}              {% endfor %}              </div>      {%endblock%}


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