https://ruby-china.org/qq1012827513 en-us <p><img src="https://l.ruby-china.com/photo/2019/f52907f8-6ade-4026-821b-08fc8db4a223.png!large" title="" alt=""> 我不想用他的数据库 我想用一个已经存在的并且有数据的数据库应该怎么操作呢？ 我知道</p> <pre class="highlight ruby"><code><span class="n">rails</span> <span class="n">generate</span> <span class="n">scaffold</span> <span class="no">User</span> <span class="nb">name</span><span class="ss">:string</span> <span class="n">email</span><span class="ss">:string</span> </code></pre> <p>指令可以新建一套代码 但是表的数据也会被清空吧 </p> qq1012827513 Mon, 16 Dec 2019 10:41:48 +0800 https://ruby-china.org/topics/39339 https://ruby-china.org/topics/39339