Question

仅显示前50个字符＆lt;％= news.header％＆gt;
视图：

<% @news.each do |news| %>
          <div class="news">
      <div class="title"> <%= news.title %> </div>
    <div class="photo"><%= image_tag( "1.jpg", :width =>247, :crop => :fit) %> </div>
      <div class="header"> <%= news.header %></div>
          <div class="cl"></div>
             </div>
    <% end %>

控制器：

def index
@news=News.all
end

Answer 1

    --
-- Table structure for table `recent_viewed`
--

CREATE TABLE IF NOT EXISTS `recent_viewed` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `postID` int(11) NOT NULL,
  `memberID` int(11) NOT NULL,
  `date` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB  DEFAULT CHARSET=latin1 AUTO_INCREMENT=1 ;

--
-- Dumping data for table `recent_viewed`
--

--
-- Table structure for table `posts`
--

CREATE TABLE IF NOT EXISTS `posts` (
  `postID` int(11) NOT NULL AUTO_INCREMENT,
  `title` varchar(70) NOT NULL,
  `name` varchar(32) NOT NULL,
  `city` varchar(32) NOT NULL,
  `created` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (`postID`)
) ENGINE=InnoDB  DEFAULT CHARSET=latin1 AUTO_INCREMENT=1 ;

--
-- Dumping data for table `posts`
--

请参阅http://api.rubyonrails.org/v4.2.7/classes/String.html#method-i-truncate

rails仅显示视图中的前50个字符字段

1 个答案: