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    <p>This is the way I went with in the end.</p> <p>It turns out Rails gives you loads of handy callbacks in the dirty to do this.</p> <p>Any suggestions on how to make this code less repetitive wold be gratefully received.</p> <pre><code>def update_mailchimp(optin) # Create a Hominid object (A wrapper to the mailchimp api), and pass in a hash from the yaml file # telling which mailing list id to update with subscribe/unsubscribe notifications) @hominid = Hominid.new client_site_list_id = YAML.load(File.read(RAILS_ROOT + "/config/mailchimp.yml")) case optin when 'subscribe_newsletter' logger.debug("subscribing to newsletter...") "success!" if @hominid.subscribe(client_site_list_id['client_site_to_mailchimp_API_link'], email, {:FNAME =&gt; first_name, :LNAME =&gt; last_name}, 'html') when 'unsubscribe_newsletter' logger.debug("unsubscribing from newsletter...") "success!" if @hominid.subscribe(client_site_list_id['client_site_to_mailchimp_API_link'], email, {:FNAME =&gt; first_name, :LNAME =&gt; last_name}, 'html') when 'subscribe_monthly_update' logger.debug("subscribing to monthly update...") "success!" if @hominid.subscribe(client_site_list_id['monthly_update'], email, {:FNAME =&gt; first_name, :LNAME =&gt; last_name}, 'html') when 'unsubscribe_monthly_update' logger.debug("unsubscribing from monthly update...") "success!" if @hominid.unsubscribe(client_site_list_id['monthly_update'], email, {:FNAME =&gt; first_name, :LNAME =&gt; last_name}, 'html') end end # Keep the users in sync with mailchimp's own records - by only firing requests to the API if details on a user have changed after saving. def check_against_mailchimp logger.info("Checking if changes need to be sent to mailchimp...") if newsletter_changed? logger.info("Newsletter changed...") newsletter ? update_mailchimp('subscribe_newsletter') : update_mailchimp('unsubscribe_newsletter') end if monthly_update_changed? logger.info("update preferences changed...") monthly_update ? update_mailchimp('subscribe_monthly_update') : update_mailchimp('unsubscribe_monthly_update') end end </code></pre>
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    1. USChris Adams
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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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