9
進出口使用曲別針作爲一個嵌套的屬性，並試圖將照片在模型創建與f.submitRuby on Rails的 - 回形針ROLLBACK TRANSACTION
這些照片模式belongs_to的分類模型上傳..
c:\Site\brokerv1\brokr>rails --version
Rails 5.0.0
c:\Site\brokerv1\brokr>ruby -v
ruby 2.2.4p230 (2015-12-16 revision 53155) [i386-mingw32]
gem "paperclip", "~> 4.2"
問題是，提交後我從回形針得到一個「回滾事務」。
另一個奇怪的是，其實我可以去看看保存在由回形針提到的路徑的文件...
型號：
class Photo < ApplicationRecord
belongs_to :classified
has_attached_file :image, :styles => { :large => "600x170", :medium => "250x250!",:thumb => "100x100>" }, :default_url => lambda { |photo| photo.instance.set_default_url}
validates_attachment_content_type :image, :content_type => ["image/jpg", "image/jpeg", "image/png", "image/gif"]
validates_attachment_presence :datafile unless :datafile
end
class Classified < ApplicationRecord
belongs_to :user
has_many :photos
accepts_nested_attributes_for :photos
end
Schema.rb
ActiveRecord::Schema.define(version: 20160814114331) do
create_table "classifieds", force: :cascade do |t|
t.string "make"
t.string "model"
t.string "year"
t.string "color"
t.string "title"
t.string "condition"
t.string "price"
t.string "offer"
t.string "make_country"
t.string "category"
t.text "description"
t.integer "user_id"
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.index ["user_id"], name: "index_classifieds_on_user_id"
end
create_table "photos", force: :cascade do |t|
t.integer "classified_id"
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.string "image_file_name"
t.string "image_content_type"
t.integer "image_file_size"
t.datetime "image_updated_at"
t.index ["classified_id"], name: "index_photos_on_classified_id"
end
create_table "users", force: :cascade do |t|
t.string "first_name"
t.string "email"
t.string "password_digest"
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
end
end
控制器
class ClassifiedsController < ApplicationController
before_action :require_user, only: [:index, :show]
def new
@classified = Classified.new
@photo = @classified.photos.build
end
def index
@classified = Classified.all
end
def show
@classified = Classified.find(params[:id])
end
def edit
@classified = Classified.find(params[:id])
end
def update
@classified = Classified.find(params[:id])
if @classified.update_attributes(classified_params)
redirect_to '/'
else
redirect_to '/'
end
end
def destroy
flash[:success] = "deleted"
if Classified.find(params[:id]).destroy
redirect_to '/'
else
redirect_to '/'
end
end
def create
@classified = Classified.new(classified_params)
@classified.user_id = current_user.id
if @classified.save
redirect_to '/'
else
render 'create'
end
end
private
def classified_params
params.require(:classified).permit(:make ,:model,:year,:color,:title,:condition,:price,:offer,:make_country ,:category ,:description ,:photos_attributes => [:id , :image , :classified_id ] )
end
end
查看：
<div class="new">
<div class="container-fluid">
<section class="container">
<div class="container-page">
<div class="col-md-6">
<h3 class="dark-grey">Εξοπλισμός προς πώληση</h3>
<%= form_for (@classified) , :html => { :multipart => true } do |f| %>
<% if @classified.errors.any? %>
<div id="error_explanation">
<h2>
<%= pluralize(@classified.errors.count, "error") %> prohibited
this article from being saved:
</h2>
<ul>
<% @classified.errors.full_messages.each do |msg| %>
<li><%= msg %></li>
<% end %>
</ul>
</div>
<% end %>
<div class="form-group col-lg-3">
<label>Μάρκα</label>
<%= f.text_field :make, :placeholder => "π.χ. Fender" , :class => "form-control"%>
</div>
<div class="form-group col-lg-6">
<label>Μοντέλο</label>
<%= f.text_field :model, :placeholder => "π.χ. Stratocaster" , :class => "form-control"%>
</div>
<div class="form-group col-lg-3">
<label>Έτος</label>
<%= f.text_field :year, :placeholder => "π.χ. 1992" , :class => "form-control"%>
</div>
<div class="form-group col-lg-12">
<label>Τίτλος Αγγελίας</label>
<%= f.text_field :title, :placeholder => "" , :class => "form-control"%>
</div>
<div class="form-group col-lg-5">
<label>Κατάσταση</label>
<%= f.text_field :condition, :placeholder => "" , :class => "form-control"%>
</div>
<div class="form-group col-lg-4">
<label>Χώρα κατασκευής</label>
<%= f.text_field :make_country, :placeholder => "" , :class => "form-control"%>
</div>
<div class="form-group col-lg-3">
<label>Τιμή</label>
<%= f.text_field :price, :placeholder => "" , :class => "form-control"%>
</div>
<div class="form-group col-lg-12">
<h3 class="dark-grey">Περιγραφή</h3>
<%= f.text_area :description, rows: "15", :placeholder => "" , :class => "form-control"%>
</div>
<div class="form-group col-lg-12">
<h3 class="dark-grey">Φωτογραφίες</h3>
<%= f.fields_for :photos do |p| %>
<%= p.file_field :image %>
<% end %>
</div>
<div class="linkbtn">
<%= f.submit nil, class: "btn-submit" %>
<% end %>
</div>
</div>
控制檯輸出：
Processing by ClassifiedsController#create as HTML
Parameters: {"utf8"=>"✓", "authenticity_token"=>"Xar6eiClpg4EtaihHCsKuPvfHZjOLgagcXlkB6EW3YO5UKgKzSU+Xo5+4EGVKPzljsGLE6p/JxVeQBNLVAZOSw==", "classified"=>{"make"=>"kdhf", "model"=>"yid", "year"=>"dtyi", "title"=>"dtyi", "condition"=>"dyti", "make_country"=>"dtyi", "price"=>"tydi", "description"=>"dyti", "photos_attributes"=>{"0"=>{"image"=>#<ActionDispatch::Http::UploadedFile:0x007f1ec21689c8 @tempfile=#<Tempfile:/tmp/RackMultipart20160815-15158-ed3vq1.JPG>, @original_filename="IMG_0367.JPG", @content_type="image/jpeg", @headers="Content-Disposition: form-data; name=\"classified[photos_attributes][0][image]\"; filename=\"IMG_0367.JPG\"\r\nContent-Type: image/jpeg\r\n">}}}, "commit"=>"Create Classified"}
Command :: file -b --mime '/tmp/8c1670d3211dcd380aba6a73797c0a1e20160815-15158-1y57b8t.JPG'
Command :: identify -format '%wx%h,%[exif:orientation]' '/tmp/8c1670d3211dcd380aba6a73797c0a1e20160815-15158-1wgarr9.JPG[0]' 2>/dev/null
Command :: identify -format %m '/tmp/8c1670d3211dcd380aba6a73797c0a1e20160815-15158-1wgarr9.JPG[0]'
Command :: convert '/tmp/8c1670d3211dcd380aba6a73797c0a1e20160815-15158-1wgarr9.JPG[0]' -auto-orient -resize "600x170" '/tmp/f7a62ccc518343a663edf66b07d7245c20160815-15158-572p8w'
Command :: identify -format '%wx%h,%[exif:orientation]' '/tmp/8c1670d3211dcd380aba6a73797c0a1e20160815-15158-1wgarr9.JPG[0]' 2>/dev/null
Command :: identify -format %m '/tmp/8c1670d3211dcd380aba6a73797c0a1e20160815-15158-1wgarr9.JPG[0]'
Command :: convert '/tmp/8c1670d3211dcd380aba6a73797c0a1e20160815-15158-1wgarr9.JPG[0]' -auto-orient -resize "250x250!" '/tmp/f7a62ccc518343a663edf66b07d7245c20160815-15158-yboo18'
Command :: identify -format '%wx%h,%[exif:orientation]' '/tmp/8c1670d3211dcd380aba6a73797c0a1e20160815-15158-1wgarr9.JPG[0]' 2>/dev/null
Command :: identify -format %m '/tmp/8c1670d3211dcd380aba6a73797c0a1e20160815-15158-1wgarr9.JPG[0]'
Command :: convert '/tmp/8c1670d3211dcd380aba6a73797c0a1e20160815-15158-1wgarr9.JPG[0]' -auto-orient -resize "100x100>" '/tmp/f7a62ccc518343a663edf66b07d7245c20160815-15158-13uo06a'
User Load (0.1ms) SELECT "users".* FROM "users" WHERE "users"."id" = ? LIMIT ? [["id", 4], ["LIMIT", 1]]
(0.1ms) begin transaction
User Load (0.1ms) SELECT "users".* FROM "users" WHERE "users"."id" = ? LIMIT ? [["id", 4], ["LIMIT", 1]]
Command :: file -b --mime '/tmp/8c1670d3211dcd380aba6a73797c0a1e20160815-15158-qz9itf.JPG'
(0.1ms) rollback transaction
Rendering classifieds/create.html.erb within layouts/application
Rendered classifieds/_gear.html.erb (4.9ms)
Rendered classifieds/_description.html.erb (0.4ms)
Rendered classifieds/create.html.erb within layouts/application (7.0ms)
Completed 200 OK in 422ms (Views: 37.6ms | ActiveRecord: 2.7ms)
而且我越來越善於f.submit錯誤：所有的解決方案後
Photos classified must exist
你渲染錯誤部分，錯誤是什麼？此外，你可能想使用Paperclip自己的'validates_attachment_content_type'回調。 – Eric
@Eric我只是渲染一個h1說錯誤，我試圖顯示一些可能的錯誤，但我失敗了，但這是我猜的另一個問題..生病搜索有關驗證！ – frcake
我也嘗試通過控制檯創建一個分類對象，它是成功的，但我沒有填充任何領域，如果我拿出回形針代碼，並嘗試創建一個分類，再次成功創建它！ – frcake