RJS Templates for Rails的thought_log程序
thought_log是《RJS Templates for Rails》的Getting Started程序app/controllers/thoughts_controller.rb:
class ThoughtsController < ApplicationControllerdef log @thought = params[:thought]endend
app/views/thoughts/index.rhtml:
<!DOCTYPE html PUBLIC "-//W3C/DTD XHTML 1.0 Transitional//EN""http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head> <meta http-equiv="Content-type" content="text/html; charset=utf-8" /> <title>Thought Log</title> <%= javascript_include_tag :defaults %></head><body> <h1>My thoughts</h1> <%= form_remote_tag :url => {:action => 'log'}, :html => {:id => 'thought-form'} %> <%= text_field_tag 'thought', nil, :size => 40 %> <%= submit_tag 'Log thought' %> <%= end_form_tag %> <div id="thoughts"></div></body></html>
app/views/thoughts/_thought.rhtml:
<p><span style="font-size: 0.8em;">[<%= Time.now.to_s(:db) %>]</span><%= h thought %></p>
app/views/thoughts/log.rjs:
page.insert_html :bottom, 'thoughts', :partial => 'thought'page.visual_effect :highlight, 'thoughts'page.form.reset 'thought-form'
需要注意的两点:
1,不要在form_remote_tag中使用:update，否则会生成Ajax.Updater这个Prototype对象而不会生成Ajax.Request对象，前者使用response内容更新一个单独的DOM元素，而后者使用RJS模板返回JavaScript到浏览器并执行。
2,当xx.rhtml和xx.rxml模板与xx.rjs模板在一个目录共存时，xx.rhtml和xx.rxml模板会比xx.rjs模板先被找到并渲染，这样RJS模板就失效了
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