上传图像在回形针延迟我的服务器3分钟，然后给我错误

Question

这是我的控制器

class PinsController < ApplicationController
  before_action :authenticate_user!, except: [:index]
  before_action :set_pin, only: [:show, :edit, :update, :destroy]
  # GET /pins
  # GET /pins.json
  def index
    @pins = Pin.all
  end
  # GET /pins/1
  # GET /pins/1.json
  def show
  end
  # GET /pins/new
  def new
    @pin = current_user.pins.new
  end
  # GET /pins/1/edit
  def edit
    @pin = current_user.pins.find(params[:id])
  end
  # POST /pins
  # POST /pins.json
  def create
    @pin = current_user.pins.new(pin_params)
    respond_to do |format|
      if @pin.save
        format.html { redirect_to @pin, notice: 'Pin was successfully created.' }
        format.json { render :show, status: :created, location: @pin }
      else
        format.html { render :new }
        format.json { render json: @pin.errors, status: :unprocessable_entity }
      end
    end
  end
  # PATCH/PUT /pins/1
  # PATCH/PUT /pins/1.json
  def update
    @pin = current_user.pins.find(params[:id])
    respond_to do |format|
      if @pin.update(pin_params)
        format.html { redirect_to @pin, notice: 'Pin was successfully updated.' }
        format.json { render :show, status: :ok, location: @pin }
      else
        format.html { render :edit }
        format.json { render json: @pin.errors, status: :unprocessable_entity }
      end
    end
  end
  # DELETE /pins/1
  # DELETE /pins/1.json
  def destroy
    @pin = current_user.pins.find(params[:id])
    @pin.destroy
    respond_to do |format|
      format.html { redirect_to pins_url, notice: 'Pin was successfully destroyed.' }
      format.json { head :no_content }
    end
  end
  private
    # Use callbacks to share common setup or constraints between actions.
    def set_pin
      @pin = Pin.find(params[:id])
    end
    # Never trust parameters from the scary internet, only allow the white list through.
    def pin_params
      params.require(:pin).permit(:description, :image)
    end
end

这是我的模型

class Pin < ActiveRecord::Base
    attr_accessible :description, :image
    has_attached_file :image, styles: { medium: "320x240>"}
    validates :description, presence: true
    validates :user_id, presence: true
    validates_attachment :image, presence: true,
                        content_type: { content_type: ["image/jpeg", "image/jpg", "image/gif", "image/png"] },
                        size: { in: 0..5.megabytes }
    belongs_to :user
end

当我尝试上传图像时，我的服务器延迟了3分钟，控制台变得疯狂，在这3分钟之后，我得到这个错误消息-"有内容不是他们报告的内容"。

Answer 1

我刚把模型改成了这个

class Pin < ActiveRecord::Base
    attr_accessible :description, :image
    has_attached_file :image, styles: { medium: "320x240>"}
    validates :description, presence: true
    validates :user_id, presence: true
    validates_attachment :image, presence: true,
                        # content_type: { content_type: ["image/jpeg", "image/jpg", "image/gif", "image/png"] },
                        size: { in: 0..5.megabytes }
    validates_attachment_content_type :image, :content_type => /Aimage/
    belongs_to :user
end