title: create a dictionary of with key as the attribute and value as model object
body: <p>Say i have this table:</p>
  <pre><code>class Blog(models.Model)
    title = models.CharField()
    body = models.CharField()
    author = models.ForeignKey(Author)
  </code></pre>
  <p>I need to create 3 rows with the title (title_1, title_2, title_3). I need to fetch all the blog objects and create a dictionary with key as the title and value as blog object.</p>
  <pre><code>blog_dict = {'title_1': &lt;blog_object_1&gt;, 'title_2': &lt;blog_object_2&gt;, 'title_2': &lt;blog_object_3&gt;}
  </code></pre>
  <p>I have 1 million records to work. Is there any efficient way to do it?</p>