我正在尝试学习如何通过 jquery 使用 $.ajax 将一些数据发布到一个简单的 rails 脚手架项目。有一个标准的脚手架创建控制器 => 图像
class ImagesController < ApplicationController
# GET /images
# GET /images.json
def index
@images = Image.all
respond_to do |format|
format.html # index.html.erb
format.json { render json: @images }
end
end
# GET /images/1
# GET /images/1.json
def show
@image = Image.find(params[:id])
respond_to do |format|
format.html # show.html.erb
format.json { render json: @image }
end
end
# GET /images/new
# GET /images/new.json
def new
@image = Image.new
respond_to do |format|
format.html # new.html.erb
format.json { render json: @image }
end
end
# GET /images/1/edit
def edit
@image = Image.find(params[:id])
end
# POST /images
# POST /images.json
def create
@image = Image.new(params[:image])
respond_to do |format|
if @image.save
format.html { redirect_to @image, notice: 'Image was successfully created.' }
format.json { render json: @image, status: :created, location: @image }
else
format.html { render action: "new" }
format.json { render json: @image.errors, status: :unprocessable_entity }
end
end
end
# PUT /images/1
# PUT /images/1.json
def update
@image = Image.find(params[:id])
respond_to do |format|
if @image.update_attributes(params[:image])
format.html { redirect_to @image, notice: 'Image was successfully updated.' }
format.json { head :no_content }
else
format.html { render action: "edit" }
format.json { render json: @image.errors, status: :unprocessable_entity }
end
end
end
# DELETE /images/1
# DELETE /images/1.json
def destroy
@image = Image.find(params[:id])
@image.destroy
respond_to do |format|
format.html { redirect_to images_url }
format.json { head :no_content }
end
end
end
一条路线=>资源:图像。数据库模式由一个字段 => t.string :name 组成。我最初的测试 html 文件是:
<html>
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.5/jquery.min.js"> </script>
</head>
<body>
<script>
$(document).ready(function(){
$.ajax({
type: 'POST', url: "localhost:3000/images",
data: { name: "johngalt" }
});
});
</script>
</body>
来自 webrick 的结果是:
Started POST "/images" for 127.0.0.1 at 2012-04-17 09:50:19 -0500
Processing by ImagesController#create as */*
Parameters: {"name"=>"johngalt"}
WARNING: Can't verify CSRF token authenticity
(0.1ms) begin transaction
SQL (63.5ms) INSERT INTO "images" ("created_at", "name", "updated_at") VALUES (?, ?, ?) [["created_at", Tue, 17 Apr 2012 14:50:21 UTC +00:00], ["name", nil], ["updated_at", Tue, 17 Apr 2012 14:50:21 UTC +00:00]]
(2.0ms) commit transaction
Redirected to http://localhost:3000/images/7
Completed 302 Found in 81ms (ActiveRecord: 65.6ms)
我不确定为什么名称不包含“johngalt”。这是否与“警告:无法验证 CSRF 令牌真实性”有关?
编辑 当我使用 curl 时:
curl -d "image[name]=johngalt" localhost:3000/images.json
记录已创建,名称字段包含“johngalt”。从本质上讲,我试图找出 .ajax 相当于做我在 curl 中能够做的事情?