<?xml version="1.0" encoding="iso-8859-1"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html> <head> <title>primary_key (ActiveRecord::ConnectionAdapters::MysqlAdapter)</title> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /> <link rel="stylesheet" href="../../../.././rdoc-style.css" type="text/css" media="screen" /> </head> <body class="standalone-code"> <pre><span class="ruby-comment cmt"># File lib/active_record/connection_adapters/mysql_adapter.rb, line 559</span> <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">primary_key</span>(<span class="ruby-identifier">table</span>) <span class="ruby-identifier">pk_and_sequence</span> = <span class="ruby-identifier">pk_and_sequence_for</span>(<span class="ruby-identifier">table</span>) <span class="ruby-identifier">pk_and_sequence</span> <span class="ruby-operator">&&</span> <span class="ruby-identifier">pk_and_sequence</span>.<span class="ruby-identifier">first</span> <span class="ruby-keyword kw">end</span></pre> </body> </html>