我是 Rails 的新手,现在几天都在尝试了解它是如何工作的。我的目标是将浏览器(不同域)中的 JSON 文件发布到 Rails 应用程序,并将发送的数据保存到数据库中。
执行以下 JQuery-Code:
$(document).ready(function() {
$("#testbutton").click(function() {
var params = '{"comment": "Test", "creator": "Max", "name": "Testname", "url": "www.foo.com"}';
$.ajax({
type: "post",
headers: { 'X-CSRF-Token': '<%= form_authenticity_token.to_s %>' },
accepts: "application/json",
contents: "application/json",
data: params,
url: 'http://localhost:3000/pages'
});
});
});
我跳过验证动作控制器中的真实性令牌:
skip_before_filter :verify_authenticity_token
现在,我不知道在 create-action 中要做什么,我必须更改它将解析 JSON 并将其写入数据库。我使用创建动作的标准行为:
def create
@page = Page.new(params[:data])
respond_to do |format|
if @page.save
format.html { redirect_to @page, :notice => 'Page was successfully created.' }
format.json { render :json => @page, :status => :created, :location => @page }
else
format.html { render :action => "new" }
format.json { render :json => @page.errors, :status => :unprocessable_entity }
end
end
end
服务器从网站接收数据,但无法解析它。
Started POST "/pages" for 127.0.0.1 at Thu Jun 07 21:48:53 +0200 2012
Processing by PagesController#create as undefined
Parameters: {"{\"data\": {\"comment\": \"Test\", \"creator\": \"Fam Disselhoff\", \"name\": \"Renate\", \"url\": \"www.elesenroth.de\"}}"=>nil}
(0.1ms) begin transaction
SQL (67.5ms) INSERT INTO "pages" ("comment", "created_at", "creator", "name", "updated_at", "url") VALUES (?, ?, ?, ?, ?, ?) [["comment", nil], ["created_at", Thu, 07 Jun 2012 19:48:53 UTC +00:00], ["creator", nil], ["name", nil], ["updated_at", Thu, 07 Jun 2012 19:48:53 UTC +00:00], ["url", nil]]