sms_feed/crud/templates/crud/update_view....

{% extends "crud/base.html" %}
{% load bootstrap3 %}

{% block crud_view_content %}
  {{ block.super }}
  <form action="" method="POST" class="form" enctype="multipart/form-data">
    {% csrf_token %}
    {% bootstrap_form form exclude=form_exclude|join:"," %}
    {% buttons %}
      <button type="submit" class="btn btn-primary">
        Update
      </button>
    {% endbuttons %}
  </form>
{% endblock %}