Question

我在我的rails应用程序中使用paperclip

我的表格是

<%= form_for @portfolio_photo, :url => portfolio_photo_uplaod_individual_profile_path(:profile_id => current_individual.profile.id), :method => :POST, :html => { :multipart => true } do |f| %>
  <%= f.hidden_field :profile_id, :value => current_individual.profile.id %>
  <%= file_field_tag :portfolio_photo, multiple: true %>
  <%= f.submit "submit" %>
<% end %>

和控制器操作是

def portfolio_photo_uplaod
  @portfolio_photo = IndividualPhoto.create(portfolio_photo_params)
  if @portfolio_photo.save
    redirect_to individual_profile_path(current_individual)
  end
end

且强参数

def portfolio_photo_params
  params.permit(:portfolio_photo, :profile_id)
end

individual_photo.rb

class IndividualPhoto < ActiveRecord::Base
  belongs_to :profile

  has_attached_file :portfolio_photo, :styles => { :medium => "300x300>" }
  validates_attachment_content_type :portfolio_photo, :content_type => ["image/jpg", "image/jpeg", "image/png", "image/gif"]
end

profile.rb

has_many :individual_photos

我可以保存当我上传单张图片但我无法保存多张图片而只是当我上传多张图片时，只有一张图片保存在数据库中请帮忙!!

Answer 1

以下是您当前系统的答案：

以您的形式：

<%= form_for @portfolio_photo, :url => portfolio_photo_uplaod_individual_profile_path(:profile_id => current_individual.profile.id), :method => :POST, :html => { :multipart => true } do |f| %>
  <%= f.hidden_field :profile_id, :value => current_individual.profile.id %>
  <%= file_field_tag 'portfolio_photos[]', multiple: true %>
  <%= f.submit "submit" %>
<% end %>

在您的控制器中：

def portfolio_photo_uplaod
  portfolio_photo_params[:portfolio_photos].each do |photo|
    IndividualPhoto.create(portfolio_photo: photo, profile_id: portfolio_photo_params[:profile_id])
  end
  redirect_to individual_profile_path(current_individual)
end

和强参数：

def portfolio_photo_params
  params.permit(:profile_id, :portfolio_photos => [])
end

根据您当前的设计，上述解决方案应该可行，但它还不是最佳方法，您可以采用更好的方法来实现这一目标，例如：使用accepts_nested_attributes_for通过配置文件控制器更新配置文件的照片。

rails 4 paperclip不上传多个图片而只上传一个

1 个答案: