Ruby on rails 轨道4+；Carrierwave+；jQuery文件上传+；嵌套表单多文件问题_Ruby On Rails_Ruby On Rails 4_Carrierwave_Nested Forms_Jquery Fileupload Rails

Ruby on rails 轨道4+；Carrierwave+；jQuery文件上传+；嵌套表单多文件问题

ruby-on-rails ruby-on-rails-4

Ruby on rails 轨道4+；Carrierwave+；jQuery文件上传+；嵌套表单多文件问题,ruby-on-rails,ruby-on-rails-4,carrierwave,nested-forms,jquery-fileupload-rails,Ruby On Rails,Ruby On Rails 4,Carrierwave,Nested Forms,Jquery Fileupload Rails,我正在使用的rails应用程序有一个小问题。我正在使用Carrierwave、嵌套表单、简单表单和Jquery文件上传gems 除数据外，大部分工作正常我有两个模型，一个项目模型和一个附件模型提交项目表单时，所有文件都会按其应有的方式上载，附件模型中会按应有的方式创建一条记录（每个文件一条记录）。但是对于projects模型，也会为每个文件创建一个记录我似乎不知道（在一个表单上，一次提交）如何只获取项目的一条记录和附件的多条记录任何帮助都将不胜感激，我已经在下面概述了我的代码。如果可能的

我正在使用的rails应用程序有一个小问题。我正在使用Carrierwave、嵌套表单、简单表单和Jquery文件上传gems

除数据外，大部分工作正常

我有两个模型，一个项目模型和一个附件模型

提交项目表单时，所有文件都会按其应有的方式上载，附件模型中会按应有的方式创建一条记录（每个文件一条记录）。但是对于projects模型，也会为每个文件创建一个记录

我似乎不知道（在一个表单上，一次提交）如何只获取项目的一条记录和附件的多条记录

任何帮助都将不胜感激，我已经在下面概述了我的代码。如果可能的话，我希望避免两步流程，但是如果有人能为我指出正确的方向，那会有所帮助

项目模型

class Project < ActiveRecord::Base
  has_many :attachments, :dependent => :destroy

  accepts_nested_attributes_for :attachments, :allow_destroy => true

  def generate_token
    self.token = loop do
      random_token = SecureRandom.urlsafe_base64
      break random_token unless Project.where(token: random_token).exists?
    end
  end
end

class Attachment < ActiveRecord::Base
  belongs_to :project, :polymorphic => true

  include Rails.application.routes.url_helpers

  mount_uploader :file, AttachmentUploader

  def to_jq_upload
  {
    "name" => read_attribute(file),
    "url" => file.url,
    "size" => file.size,
    "delete_url" => attachment_path(:id => id),
    "delete_type" => "DELETE"
  }
  end
end

class项目：销毁
接受：附件的\u嵌套\u属性\u，：允许\u销毁=>true
def生成令牌
self.token=循环do
随机\u令牌=SecureRandom.urlsafe\u base64
中断随机\u令牌，除非Project.where（令牌：随机\u令牌）存在？
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附件模型

class Project < ActiveRecord::Base
  has_many :attachments, :dependent => :destroy

  accepts_nested_attributes_for :attachments, :allow_destroy => true

  def generate_token
    self.token = loop do
      random_token = SecureRandom.urlsafe_base64
      break random_token unless Project.where(token: random_token).exists?
    end
  end
end

class Attachment < ActiveRecord::Base
  belongs_to :project, :polymorphic => true

  include Rails.application.routes.url_helpers

  mount_uploader :file, AttachmentUploader

  def to_jq_upload
  {
    "name" => read_attribute(file),
    "url" => file.url,
    "size" => file.size,
    "delete_url" => attachment_path(:id => id),
    "delete_type" => "DELETE"
  }
  end
end

类附件true
包括Rails.application.routes.url\u帮助程序
mount_uploader:文件，AttachmentUploader
def到jq上传
{
“名称”=>读取属性（文件），
“url”=>file.url，
“size”=>file.size，
“删除url”=>附件路径（：id=>id），
“删除类型”=>“删除”
}
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项目控制员

class ProjectsController < ApplicationController
  def index
  @projects = Project.all

  respond_to do |format|
    format.html
    format.json { render json: @projects }
  end
end

def new
  @project = Project.new
  @project.token = @project.generate_token
  @attachments = @project.attachments.build
end

def create
  @project = Project.new(project_params)
  respond_to do |format|
    if @project.save
      format.html { redirect_to projects_url, notice: 'Project was successfully created.' }
      format.json { render json: @project, status: :created, location: @project }
    else
      format.html {}
      format.json {}
    end
  end
end

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

  respond_to do |format|
    format.html { redirect_to projects_url }
    format.json { head :no_content }
  end
end

private
  def project_params
    params.require(:project).permit(:name, :token, :number_of_pages, :number_of_copies, :flat_page_size, :trim_page_size, :purchase_order_number, :preferred_delivery_date, :delivery_method, :delivery_instructions, :project_instructions, attachments_attributes: [:id, :attachment, :name, :filename, :file, :project_token, :branch])
  end
end

class AttachmentsController < ApplicationController
before_filter :the_project

def index
  @attachments = Attachment.where("project_id = ?", the_project)
  render :json => @attachments.collect { |p| p.to_jq_upload }.to_json
end

def create
  @project = Project.find(params[:project_id])
  @attachment = Attachment.new(attachment_params)

  if @attachment.save
    respond_to do |format|
      format.html { render :json => [@attachment.to_jq_upload].to_json, :content_type => 'text/html', :layout => false }
      format.json { render :json => {files: [@attachment.to_jq_upload]}.to_json }
    end
  else
    render :json => [{ :error => "custom_failure "}], :status => 304
  end
end

def destroy
  @attachment = Attachment.find(params[:id])
  @attachment.destroy

  render :json => true
end

private

  def the_project
    @project = Project.find(params["project_id"])
  end

end

class ProjectsController


附件控制器
class ProjectsController < ApplicationController
  def index
  @projects = Project.all

  respond_to do |format|
    format.html
    format.json { render json: @projects }
  end
end

def new
  @project = Project.new
  @project.token = @project.generate_token
  @attachments = @project.attachments.build
end

def create
  @project = Project.new(project_params)
  respond_to do |format|
    if @project.save
      format.html { redirect_to projects_url, notice: 'Project was successfully created.' }
      format.json { render json: @project, status: :created, location: @project }
    else
      format.html {}
      format.json {}
    end
  end
end

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

  respond_to do |format|
    format.html { redirect_to projects_url }
    format.json { head :no_content }
  end
end

private
  def project_params
    params.require(:project).permit(:name, :token, :number_of_pages, :number_of_copies, :flat_page_size, :trim_page_size, :purchase_order_number, :preferred_delivery_date, :delivery_method, :delivery_instructions, :project_instructions, attachments_attributes: [:id, :attachment, :name, :filename, :file, :project_token, :branch])
  end
end

class AttachmentsController < ApplicationController
before_filter :the_project

def index
  @attachments = Attachment.where("project_id = ?", the_project)
  render :json => @attachments.collect { |p| p.to_jq_upload }.to_json
end

def create
  @project = Project.find(params[:project_id])
  @attachment = Attachment.new(attachment_params)

  if @attachment.save
    respond_to do |format|
      format.html { render :json => [@attachment.to_jq_upload].to_json, :content_type => 'text/html', :layout => false }
      format.json { render :json => {files: [@attachment.to_jq_upload]}.to_json }
    end
  else
    render :json => [{ :error => "custom_failure "}], :status => 304
  end
end

def destroy
  @attachment = Attachment.find(params[:id])
  @attachment.destroy

  render :json => true
end

private

  def the_project
    @project = Project.find(params["project_id"])
  end

end

class AttachmentsController@attachments.collect{| p | p.to_jq_upload}.to_json
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def创建
@project=project.find（参数[：project\u id]）
@附件=附件.new（附件参数）
如果@attachment.save
回应待办事项|格式|
format.html{render:json=>[@attachment.to_jq_upload]。to_json，：content_type=>'text/html'，：layout=>false}
format.json{render:json=>{files:[@attachment.to_jq_upload]}.to_json}
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其他的
render:json=>[{:error=>“custom_failure”}]，：status=>304
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def销毁
@附件=附件.find（参数[：id]）
@附件.销毁
render:json=>true
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私有的
def_项目
@project=project.find（参数[“project\u id”]）
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新项目表单（app/views/projects/New.html.erb）
新项目


{:wrapper_html=>{:class=>'form group'}，:input_html=>{:class=>'form control'}}，:html=>{:multipart=>true，:id=>“fileupload”，：class=>'horizontal form'，：role=>“form”}do | f |%>
“项目名称/说明”：class=>col-lg-12'>
'完成大小（如果与平面页面大小不同）'%>
：文本%>
卡尔加里市区
卡尔加里南部
埃德蒙顿
基洛纳


添加文件。。。
“项目[附件属性][0][文件]，：multiple=>true%>
开始上传
取消上传
删除上传
“卡尔加里市中心”%>
@project.token%>
var fileUploadErrors={
maxFileSize:'文件太大'，
minFileSize:'文件太小'，
acceptFileTypes:“不允许使用文件类型”，
maxNumberOfFiles:“超过最大文件数”，
uploadedBytes:“上载的字节超过文件大小”，
emptyResult:“空文件上载结果”
}; 
{%for（var i=0，file；file=o.files[i]；i++）{%}
{%=文件名%}
{%=o.formatFileSize（file.size）%}
{%if（file.error）{%}
{%=locale.fileupload.error%}{%=locale.fileupload.errors[file.error]| | file.error%}
{%}如果（o.files.valid&&！i）{%}
{%if（！o.options.autoUpload）{%}
{%=locale.fileupload.start%}
{% } %}
{%}其他{%}
{% } %}
{%if（！i）{%}
{%=locale.fileupload.cancel%}
{% } %}
{% } %}
{%for（var i=0，file；file=o.files[i]；i++）{%}
{%