Question

我允许用户使用回形针上传照片，但照片中没有所有权。这意味着，我根本不知道是谁上传了这些照片。

在这里，我想当有人上传图片时你知道哪个用户上传了它。我有一个user_id列。但我不知道如何在pic控制器中实现代码

我该怎么做？谢谢！

class PicsController < ApplicationController
before_action :find_pic, only: [:show, :edit, :update, :destroy]

def index
    @user = User.find( params[:user_id])
    @pics = Pic.all.order("created_at DESC")

end

def show

end

def new
    @pic = Pic.new
end

def create
    @pic.user = current_user
    @pic = Pic.new(pic_params)
    if @pic.save
        redirect_to @pic, notice: "Yes it was posted"
    else 
        render 'new'
    end
end

def edit
    @user = User.find(params[:user_id])
    @profile = @user.profile
end

def update
    if @pic.update(pic_params)
        redirect_to @pic, notice: "Congrates Pic was upaded"
    else
        render 'new'
    end
end

def destroy
    @pic.destroy
    redirect_to users_path
end


private

def pic_params
    params.require(:pic).permit(:title, :description, :profile_id)
end

def find_pic
    @pic = Pic.find(params[:id])
  end

端

class UsersController < ApplicationController
before_action :authenticate_user!

def index
    @pics = Pic.all.order("created_at DESC")
end

def show @user = User.find（params [：id]） @pics = User.find_by（user_name：params [：user_name]）端

端

class ProfilesController < ApplicationController
before_action :authenticate_user!
before_action :only_current_user


def new
    @user = User.find( params[:user_id])
    @profile = Profile.new
end

def create
    @user = User.find(params[:user_id])
    @profile = @user.build_profile(profile_params)
    if @profile.save
        redirect_to user_path( params[:user_id])
    else
        render action: :new

    end
end

def edit
    @user = User.find(params[:user_id])
    @profile = @user.profile

end

def update
    @user = User.find(params[:user_id])
    @profile = @user.profile
    if @profile.update_attributes(profile_params)
        flash[:success] = "Profile Updated"
        redirect_to user_path(params[:user_id])
    else
       render action: :edit 
    end
end


private

def profile_params
    params.require(:profile).permit(:avatar, :user_name, :contact_email, :description)
end

def only_current_user
    @user = User.find(params[:user_id])
    redirect_to(root_url) unless @user == current_user
end

端

Answer 1

如果在上传过程中可以识别用户，则可以尝试在上传过程中传递 user_id in hidden_field 。你说你已经创建了user_id列。

<%= f.hidden_field :user_id , value: @user.id %>

要使此代码正常工作，您需要在控制器操作中找到@user。与您在“索引”操作中已经执行的操作类似：通过：user_id查找用户如果您对用户使用devise，则可以改为使用current_user.id。

rails user_id添加到图片

1 个答案: