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    <div class="moz-cite-prefix">Thanks, Jon,<br>
      this is practically what I asked for - a list of all of the
      objects I need, and a few more. For some reason I got an error on
      the last line.
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      <a href="https://gist.github.com/JonRowe/5158141#comment-797997">https://gist.github.com/JonRowe/5158141#comment-797997</a>
      Not to worry though, with all the information I got, I'm well on
      my way to a solution.<br>
      Ronny.<br>
      <br>
      <br>
      On 14/03/13 09:42, Jon Rowe wrote:<br>
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      cite="mid:C4975E7F25E74ABCA2723CD49812F114@jonrowe.co.uk"
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        <div>You can get the constants of Object or some other top level
          object, map them into the actual constants (cause Ruby returns
          them as symbols),and then filter them…</div>
        <div><br>
        </div>
        <div>Something along the lines of this… <a
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            href="https://gist.github.com/JonRowe/5158141">https://gist.github.com/JonRowe/5158141</a></div>
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        <div><span style="font-size: 10pt; ">Jon Rowe</span></div>
        <div><span style="font-size: 10pt; ">-----------------------------</span></div>
        <div><span style="font-size: 10pt; "><a class="moz-txt-link-abbreviated" href="mailto:mail@jonrowe.co.uk">mail@jonrowe.co.uk</a></span></div>
        <div><span style="font-size: 10pt; ">jonrowe.co.uk</span></div>
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      <p style="color: #A0A0A8;">On Thursday, 14 March 2013 at 11:38,
        Ronny Ager-Wick wrote:</p>
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        <span>
          <div>
            <div>
              <div>I've been trying to find a way to do this, but I may
                be searching for the </div>
              <div>wrong terms or something because I get nowhere, even
                with the help of my </div>
              <div>friend Google.</div>
              <div>I want to loop through the defined classes to see
                which ons of them responds </div>
              <div>to certain methods.</div>
              <div>The classes I'm trying to find are Ohm Models that
                have a certain attribute </div>
              <div>defined.</div>
              <div>If I had a collection of classes, I'd probably do
                something like this:</div>
              <div><br>
              </div>
              <div>classes = #get list of all classes</div>
              <div>classes.each { |c|</div>
              <div> # assume it's an Ohm::Model if it responds to :first</div>
              <div> # maybe there's a better way of filtering out only
                the Ohm models</div>
              <div> if c.respond_to?(:first) &&
                c.first.respond_to?(:updated_at)</div>
              <div> # convert the timestamp of all records in this
                model.</div>
              <div> end</div>
              <div>end</div>
              <div><br>
              </div>
              <div>The end objective is to convert the timestamp from
                the old way they used to </div>
              <div>store it (Ohm-contrib 0.*) which looks like this
                "2011-02-25 21:54:06 UTC", </div>
              <div>and the new way, which are UNIX timestamps.</div>
              <div>I could always just make a list of the models
                manually and loop through them, </div>
              <div>but I want to make a reusable script that others can
                benefit from as well.</div>
              <div>Ronny.</div>
              <div>_______________________________________________</div>
              <div>Chat mailing list</div>
              <div><a moz-do-not-send="true"
                  href="mailto:Chat@lists.lrug.org">Chat@lists.lrug.org</a></div>
              <div><a moz-do-not-send="true"
                  href="http://lists.lrug.org/listinfo.cgi/chat-lrug.org">http://lists.lrug.org/listinfo.cgi/chat-lrug.org</a></div>
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