abab7200 score 118
2017/09/21 08:55 投稿
| 【Rails4】Paperclipを利用した登録フォームで、１回で画像を複数uploadしたい |
| Paperclipで画像を複数投稿できるフォームを設定したいのですが、 |
| multiple: trueを設定すると、controller側で値がNillになり、DBでもデータ登録ができておりません。 どなたかフォーム上で複数uploadが可能になる方法をご教授いただければと存じます |
| バージョン |
| Rails4 |
| Ruby2.1 |
| Picture model |
| ```ここに言語を入力 |
| class Picture < ActiveRecord::Base |
| has_attached_file :avatar, styles: { medium: "300x300>", thumb: "100x100>" } |
| validates_attachment :avatar, content_type: { content_type: ["image/jpg", "image/jpeg", "image/png", "image/gif"] } |
| end |
| ``` |
| Picture controller |
| ```ここに言語を入力 |
| class PicturesController < ApplicationController |
| def index |
| @pictures = Picture.all |
| end |
| def new |
| @picture = Picture.new |
| end |
| def create |
| @picture = Picture.new(picture_params) |
| byebug |
| if @picture.save |
| redirect_to dashboards_path |
| else |
| render 'new' |
| end |
| end |
| private |
| def picture_params |
| params.require(:picture).permit(:name, :photo, :avatar) |
| end |
| end |
| ``` |
| Picture new.html.slim |
| ```ここに言語を入力 |
| = simple_form_for @picture, url: pictures_path do |form| |
| = form.file_field :avatar, as: :file , multiple: true |
| = form.submit "送信" |
| ``` |
| byebugした際のcreate処理で渡されるパラメーター |
| ```ここに言語を入力 |
| 11: def create |
| 12: @picture = Picture.new(picture_params) |
| 13: byebug |
| => 14: if @picture.save |
| 15: redirect_to dashboards_path |
| 16: else |
| 17: render 'new' |
| 18: end |
| (byebug) |
| (byebug) @picture |
| #<Picture id: nil, name: nil, string: nil, created_at: nil, updated_at: nil, photo_file_name: nil, photo_content_type: nil, photo_file_size: nil, photo_updated_at: nil, avatar_file_name: nil, avatar_content_type: nil, avatar_file_size: nil, avatar_updated_at: nil> |
| ``` |
| ``` |
