Ruby on Rails和Cocoa - POST将值作为NULL放入数据库

Question

我想向我的Ruby on Rails本地服务器发送POST请求。不幸的是，起初它不会让我POST，因为protect_from_forgery，所以我最终在开发和生产中将它设置为false。基本上，我的问题是我将发送来自我的Cocoa应用程序的POST请求和所有想要的参数，Ruby服务器将会看到它。但是，每当服务器插入我的请求时，除created_at和updated_at之外，所有VALUES都设置为NULL。我不知道Ruby on Rails是如何工作的（因为我使用脚手架），所以我不确定需要设置哪些参数以便它们能够正确插入。

谢谢！

可可CODE：

NSString *urlString = @"http://localhost:3000/clients"; 
NSURL *url = [[NSURL alloc] initWithString:urlString]; 
NSMutableURLRequest *req = [[NSMutableURLRequest alloc] initWithURL: url]; 
[req setHTTPMethod: @"POST"]; 

NSData *putParams = [@"name=TEST&ip_address=1.1.1.1" dataUsingEncoding:NSUTF8StringEncoding]; 
[req setHTTPBody: putParams]; 

NSHTTPURLResponse* urlResponse = nil; 
NSError *error = [[NSError alloc] init]; 
NSData *responseData = [NSURLConnection sendSynchronousRequest:req returningResponse:&urlResponse error:&error]; 
NSString *result = [[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding]; 

NSLog(@"Response Code: %d", [urlResponse statusCode]); 
if ([urlResponse statusCode] >= 200 && [urlResponse statusCode] < 300) 
    NSLog(@"Response: %@", result); 

[url release]; 
[req release]; 
[error release]; 

服务器响应：

Processing ClientsController#create (for 17.224.23.62 at 2010-07-13 16:59:55) [POST] 
Parameters: {"name"=>"TEST", "ip_address"=>"1.1.1.1"} 
Client Create (0.3ms) INSERT INTO "clients" ("name", "created_at", "updated_at", "ip_address") VALUES(NULL, '2010-07-13 23:59:55', '2010-07-13 23:59:55', NULL) 
Redirected to http://17.224.23.62:3000/clients/6 
Completed in 7ms (DB: 0) | 302 Found [http://17.224.23.62/clients] 

Processing ClientsController#show (for 17.224.23.62 at 2010-07-13 16:59:55) [GET] 
Parameters: {"id"=>"6"} 
Client Load (0.1ms) SELECT * FROM "clients" WHERE ("clients"."id" = 6) 
Rendering template within layouts/clients 
Rendering clients/show 
Completed in 7ms (View: 2, DB: 0) | 200 OK [http://17.224.23.62/clients/6] 

我试图做这CLIENTS控制器，但问题仍然是相同的：

if params[:name].present? 
    @client = Client.new(:name => params[:names]) 
else 
    @client = Client.new(params[:client]) 
end 

JUST IN情况下，需要（完整的客户端控制器 - 所有这些都与SCAFFOLD相关）：

class ClientsController < ApplicationController 

# GET /clients 
# GET /clients.xml 
def index 
    @clients = Client.all 

    respond_to do |format| 
    format.html # index.html.erb 
    format.xml { render :xml => @clients } 
    end 
end 

# GET /clients/1 
# GET /clients/1.xml 
def show 
    @client = Client.find(params[:id]) 

    respond_to do |format| 
    format.html # show.html.erb 
    format.xml { render :xml => @client } 
    end 
end 

# GET /clients/new 
# GET /clients/new.xml 
def new 
    @client = Client.new 

    respond_to do |format| 
    format.html # new.html.erb 
    format.xml { render :xml => @client } 
    end 
end 

# GET /clients/1/edit 
def edit 
    @client = Client.find(params[:id]) 
end 

# POST /clients 
# POST /clients.xml 
def create 
    if params[:name].present? 
    @client = Client.new(:name => params[:names]) 
    else 
    @client = Client.new(params[:client]) 
    end 

    respond_to do |format| 
    if @client.save 
     format.html { redirect_to(@client, :notice => 'Client was successfully created.') } 
     format.xml { render :xml => @client, :status => :created, :location => @client } 
    else 
     format.html { render :action => "new" } 
     format.xml { render :xml => @client.errors, :status => :unprocessable_entity } 
    end 
    end 
end 

# PUT /clients/1 
# PUT /clients/1.xml 
def update 
    @client = Client.find(params[:id]) 

    respond_to do |format| 
    if @client.update_attributes(params[:client]) 
     format.html { redirect_to(@client, :notice => 'Client was successfully updated.') } 
     format.xml { head :ok } 
    else 
     format.html { render :action => "edit" } 
     format.xml { render :xml => @client.errors, :status => :unprocessable_entity } 
    end 
    end 
end 

# DELETE /clients/1 
# DELETE /clients/1.xml 
def destroy 
    @client = Client.find(params[:id]) 
    @client.destroy 

    respond_to do |format| 
    format.html { redirect_to(clients_url) } 
    format.xml { head :ok } 
    end 
end 

end 

P.S.如果我的问题有些不清楚，请告诉我。

Answer 1

您的控制器中有错字：@client = Client.new(:name => params[:names])应该是@client = Client.new(:name => params[:name])。

这将解决问题的一部分，但这里是它的根：

本质上说，如果这是一个“真实”的Rails应用程序，将派遣PARAMS这样的：

{ :client => { :name => x, :ip => y } } 

然后像这样：你可以访问PARAMS名称和IP [客户]：

@client = Client.new(params[:client]) 

但你要发送：

{ :name => x, :ip => y } 

因此，你需要：

@client = Client.new(:name => params[:name], :ip => params[:ip]) 

对于 “Rails的方式” 工作，你可以修改你的Objective-C代码发送PARAMS像client[name]=x&client[ip]=y。