Ruby on rails Rails-简单循环不工作

在我的控制器中，我尝试向一个表中进行大容量插入，在我的第一次尝试中，它工作了，但是名称不知怎么地被损坏了，如下所示：（循环运行24次，这就是我想要的）

test-port-name-0-1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21

test-port-name-0-1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20

test-port-name-0-1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19

test-port-name-0-1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18

test-port-name-0-1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17

test-port-name-0-1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16

test-port-name-0-1-2-3-4-5-6-7-8-9-10-11-12-13-14-15

test-port-name-0-1-2-3-4-5-6-7-8-9-10-11-12-13-14

test-port-name-0-1-2-3-4-5-6-7-8-9-10-11-12-13

测试端口名称0-1-2-3-4-5-6-7-8-9-10-11-12

test-port-name-0-1-2-3-4-5-6-7-8-9-10-11

测试端口名称0-1-2-3-4-5-6-7-8-9-10

测试端口名称0-1-2-3-4-5-6-7-8-9

测试端口名称0-1-2-3-4-5-6-7-8

测试端口名称0-1-2-3-4-5-6

测试端口名称0-1-2-3-4-5-6-7

测试端口名称0-1-2-3-4-5

测试端口名称0-1-2-3-4

测试端口名称0-1-2

测试端口名称0-1-2-3

测试端口名称0

测试端口名称0-1

test-port-name-0-1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-22

test-port-name-0-1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-22-23

def bulk_port_import
  if request.post?
    #attempt create
    count = 0
    for i in 1..session[:no_ports]
      params[:dp][:name] = params[:dp][:name] + '-' + count.to_s
      @dp = DevicePort.create params[:dp]
      count = count + 1
    end
  end
 @success = "Saved." if @dp.valid?
  @error = ""
  @dp.errors.each_full {|e| @error += e + ", "}
  redirect_to '/device/update/' + params[:dp][:device_id]
end

而不是

test-port-name-0。。。。test-port-name-23

def bulk_port_import
  if request.post?
    #attempt create
    count = 0
    for i in 1..session[:no_ports]
      params[:dp][:name] = params[:dp][:name] + '-' + count.to_s
      @dp = DevicePort.create params[:dp]
      count = count + 1
    end
  end
 @success = "Saved." if @dp.valid?
  @error = ""
  @dp.errors.each_full {|e| @error += e + ", "}
  redirect_to '/device/update/' + params[:dp][:device_id]
end

不同的尝试：

def bulk_port_import
  if request.post?
    #attempt create
    i = 0
    while i < session[:no_ports] do
      params[:dp][:name] = params[:dp][:name] + '-' + i.to_s
      @dp = DevicePort.create params[:dp]
      i++
    end
  end
  session.delete(:no_ports)
  @success = "Saved." if @dp.valid?
  @error = ""
  @dp.errors.each_full {|e| @error += e + ", "}
  redirect_to '/device/update/' + params[:dp][:device_id]
end

def批量\u端口\u导入
如果请求，请发邮件？
#尝试创建
i=0
而我

---

但是这样我就得到了

语法错误，意外的kEND

，我看不出我在这两种情况下都做错了什么，这可能又是愚蠢的事情。

这是因为你在循环中更改了参数[：dp][：name]

def bulk_port_import
  if request.post?
    #attempt create
    count = 0
    for i in 1..session[:no_ports]
      dp_name = params[:dp][:name] + '-' + count.to_s
      @dp = DevicePort.create(params[:dp].merge(:name => dp_name))
      count = count + 1
    end
  end
  @success = "Saved." if @dp.valid?
  @error = ""
  @dp.errors.each_full {|e| @error += e + ", "}
  redirect_to '/device/update/' + params[:dp][:device_id]
end