title: MySQL function using Rails/ActiveRecord
body: <p>I have a problem in using Rails / ActiveRecord.</p>
  
  <p>I want to insert record with MySQL function, for example <code>GeomFromText('POINT(1 1)')</code>.
  Using ActiveRecord normally, these functions are quoted automatically. I want not to quote these values.</p>
  
  <pre><code>Model.create(geo: GeomFromText('POINT(1 1)'))
  </code></pre>
  
  <p>this ActiveRecord statement will generate following SQL</p>
  
  <pre><code>INSERT INTO `Model` (`geo`) VALUES ('GeomFromText(\'POINT(1 1)\')')
  </code></pre>
  
  <p>It may be easy to use raw SQL, but I want to use ActiveRecord because my Model set several callbacks include self table.</p>
  
  <p>How can use MySQL function with ActiveRecord statement?</p>