Question

我按照carrierwave文档中的说明操作，但我的问题是，当我上传两个或更多文件时，只有最后一张照片会上传到我的数据库中。我按照说明一步一步地使用pg作为我的数据库。我还设法成功安装，序列化和使用：images列首先作为字符串+序列化和json。

这是我的CRUD功能和proj_params

def create
  @project = Project.new(proj_params)
  @project.user_id = @current_user.id if logged_in?
  if @project.save
    flash[:success] = "Project Succesfully Added"
    redirect_to new_project_path
  else
    render 'new'

  end
end

def edit
@project = Project.find(params[:id])
end

def update
  @project = Project.find(params[:id])
  if @project.update_attributes(proj_params)
    flash[:success] = "Project Information Updated"
    redirect_to projects_path
  else
    render 'edit'
  end
end

def destroy
  Project.find(params[:id]).destroy
  flash[:success] = "Project Entry Deleted"

  redirect_to projects_path
end

private
  def proj_params
  params.require(:project).permit(:name,:description, {avatars: []})
end

这是我的项目模型

我的AvatarUploader

class AvatarUploader < CarrierWave::Uploader::Base
  include Cloudinary::CarrierWave
end

这是项目模型

class Project < ApplicationRecord
  mount_uploaders :avatars, AvatarUploader
  serialize :avatars, JSON
  belongs_to :user
  validates :user_id, presence: true
  validates :name, presence:true, length:{maximum:150}
  validates :description, presence: true, length:{maximum:1000}
 end

项目/新视图

<%= form_for @project, html: { multipart: true } do |f| %>
  <%= render 'shared/error_messages_proj'%> 
  <%= render 'shared/flash_messages' %>

  <%= f.label :pictures %>
  <%= f.file_field :avatars, multiple: true, accept: "image/jpeg, image/jpg, image/gif, image/png" %>
  <br>
  <%= f.label :name %>
  <%= f.text_field :name, class: 'form-control' %>
  <br>
  <%= f.label :description %>
  <%= f.text_area :description, class: 'form-control cons-txt-area' %>
  <br>

  <%= f.submit "Add Project", class:"btn black" %>

<% end %>

IMAGE 1: I think it's a problem about actually saving it cause it does 2 updates for 2 images uploaded for id = "$1". The params hash contains the names of both of my images so i think the view part works fine.

Rails：Carrierwave以前存储的文件在多个图像上传中被更新的文件替换

0 个答案: