我想让用户将Word文档和PDF文件上传到我的rails应用程序.我的应用程序类似于Pinterest应用程序,用户可以在其附加图片的同时创建引脚,然后再进行说明(使用“纸张剪贴板将图像附加到引脚”).
这是我的引脚模型：
class Pin < ActiveRecord::Base
belongs_to :user
has_attached_file :image,:styles => { :medium => "300x300>",:thumb => "100x100>" }
validates_attachment :image,content_type: { content_type: ["image/jpg","image/jpeg","image/png","image/gif"] }
validates :image,presence: true
end
我的引脚控制器：
class PinsController < ApplicationController
before_action :set_pin,only: [:show,:edit,:update,:destroy]
before_action :correct_user,only: [:edit,:destroy]
before_action :authenticate_user!,except: [:index,:show]
def index
@pins = Pin.all.order("created_at DESC").paginate(:page => params[:page],:per_page => 15)
end
def show
end
def new
@pin = current_user.pins.build
end
def edit
end
def create
@pin = current_user.pins.build(pin_params)
if @pin.save
redirect_to @pin,notice: 'Pin was successfully created.'
else
render action: 'new'
end
end
def update
if @pin.update(pin_params)
redirect_to @pin,notice: 'Pin was successfully updated.'
else
render action: 'edit'
end
end
def destroy
@pin.destroy
redirect_to pins_url
end
private
def set_pin
@pin = Pin.find(params[:id])
end
def correct_user
@pin = current_user.pins.find_by(id: params[:id] )
redirect_to pins_path,notice: "Not authorized to edit this Pin" if @pin.nil?
end
def pin_params
params.require(:pin).permit(:description,:image)
end
end
我想知道我是否需要为我的Pin模型中的Word文档和PDF文件创建另一个has_attached_file方法,然后为用户创建一个用于上传文件的视图.
解决方法
这取决于…
如果要附加图像和文档,则需要为文档创建另一个纸张剪贴画属性.您的型号：
has_attached_file :image,:thumb => "100x100>" }
validates_attachment :image,"image/gif"] }
has_attached_file :document
validates_attachment :document,:content_type => { :content_type => %w(application/pdf application/msword application/vnd.openxmlformats-officedocument.wordprocessingml.document) }
如果要附加图像或文档,您可以执行以下操作：
has_attached_file :document
validates_attachment :document,:content_type => {:content_type => %w(image/jpeg image/jpg image/png application/pdf application/msword application/vnd.openxmlformats-officedocument.wordprocessingml.document)}
如果您选择第一个选项,则您的视图中将需要两个文件输入,仅第二个选项.这不对还是错.这取决于你想做什么