我创建了一个图像模型，它将通过多态关联将所有上传的图像（通过CarrierWave）存储到我的应用程序中 .
配置文件可以通过此关联具有一个图像 .
目前有什么工作：
-
CarrierWave成功上传图片至
public/uploads/temp -
Rails控制台没有错误，但发生了（无关？）回滚
什么不起作用：
- 提交时没有任何内容保存到images表
任何指针赞赏！
profile.rb
class Profile < ActiveRecord::Base
belongs_to :user
has_one :image, as: :imageable, dependent: :destroy
has_and_belongs_to_many :genres, -> { order "name asc" }
has_and_belongs_to_many :talents, -> { order "name asc" }
has_and_belongs_to_many :influences, -> { order "name asc" }
accepts_nested_attributes_for :image
accepts_nested_attributes_for :influences
accepts_nested_attributes_for :talents
accepts_nested_attributes_for :genres
end
image.rb
class Image < ActiveRecord::Base
belongs_to :imageable, polymorphic: true
mount_uploader :image, ImageUploader
validates_presence_of :image
validates_integrity_of :image
end
image_uploader.rb
class ImageUploader < CarrierWave::Uploader::Base
include CarrierWave::MiniMagick
storage :file
def store_dir
"uploads/#{model.class.to_s.underscore}/#{mounted_as}/#{model.id}"
end
# Create different versions of your uploaded files:
version :thumb do
process :resize_to_fill => [100, 100]
end
version :grid do
process :resize_to_fill => [600, 400]
end
version :large do
process :resize_to_fit => [1000, 1000]
end
version :mega do
process :resize_to_fit => [2000, 2000]
end
def extension_white_list
%w(jpg jpeg gif png)
end
end
资料/ show.html.erb
<%= form_for @profile, html: { multipart: true } do |f| %>
<%= f.fields_for :image_attributes do |image_f| %>
<%= image_f.label :image %><br>
<%= image_f.file_field :image %>
<%= image_f.hidden_field :imageable_id, value: @profile.id %>
<%= image_f.hidden_field :imageable_type, value: "image" %>
<% end %>
<div class="actions">
<%= f.submit %>
</div>
<% end %>
schema.rb
create_table "profiles", force: :cascade do |t|
t.string "name"
t.string "website"
t.string "details"
t.string "soundcloud"
t.string "bandcamp"
t.string "facebook"
t.string "instagram"
t.string "twitter"
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.string "slug"
t.integer "availability"
t.string "spotify"
t.string "applemusic"
t.integer "user_id"
t.integer "visible"
end
create_table "images", force: :cascade do |t|
t.string "image"
t.datetime "created_at"
t.datetime "updated_at"
t.integer "imageable_id"
t.string "imageable_type"
end
profiles_controller.rb
class ProfilesController < ApplicationController
before_action :authenticate_user!, :except => [:index,:show]
before_action :set_profile, only: [:update, :destroy]
before_action :require_permission, only: [:update, :destroy]
def index
@profiles = Profile
.joins(:user)
.where(:users => {:state => User.states[:active]})
.where(visible: true)
.order(created_at: :desc)
.limit(24)
@profiles = @profiles.offset(params[:offset]) if params[:offset]
end
def show
if user_signed_in?
if params[:id]
@profile = Profile.friendly.find(params[:id])
else
@profile = current_user.profile
end
else
@profile = Profile.friendly.find(params[:id])
end
end
def new
@profile = Profile.new
end
def create
@profile = Profile.new(profile_params)
@profile.user_id = current_user.id
respond_to do |format|
if @profile.save
format.html { redirect_to @profile, notice: 'Profile was successfully created.' }
format.json { render :show, status: :created, location: @profile }
else
format.html { render :show }
format.json { render json: @profile.errors, status: :unprocessable_entity }
end
end
end
def update
respond_to do |format|
if @profile.update(profile_params)
format.html { redirect_to @profile, notice: 'Profile was successfully updated.' }
format.json { render :show, status: :ok, location: @profile }
else
format.html { render :show }
format.json { render json: @profile.errors, status: :unprocessable_entity }
end
end
end
def destroy
@profile.destroy
respond_to do |format|
format.html { redirect_to profile_url, notice: 'Profile was successfully destroyed.' }
format.json { head :no_content }
end
end
def favorite
end
private
def set_profile
@profile = Profile.friendly.find(params[:id])
end
def profile_params
params.require(:profile).permit(:name, :visible, :website, :details, :soundcloud, :bandcamp, :facebook, :instagram, :twitter, :spotify, :applemusic, :influence_ids => [], :talent_ids => [], :genre_ids => [], :image_attributes => [:id, :image, :imageable_id, :imageable_type, :_destroy])
end
end
rails控制台提交
Started PATCH "/profile/the-national" for 127.0.0.1 at 2016-06-04 20:00:18 -0400
Processing by ProfilesController#update as HTML
Parameters: {"utf8"=>"✓", "authenticity_token"=>"OrPkaYUwDZ6czE4+Y1huD9WrzFvbe5VSbyHIFaQn67lG9NksNBYdNhBFe4JIdQXKxj7RFcREf0sS8H2qNjW5IQ==", "profile"=>{"image_attributes"=>{"image"=>#<ActionDispatch::Http::UploadedFile:0x007fce521e9d30 @tempfile=#<Tempfile:/var/folders/65/_z6n11pd1mggqwbkhwd8tyqr0000gn/T/RackMultipart20160604-26775-me2shw.png>, @original_filename="social-header.png", @content_type="image/png", @headers="Content-Disposition: form-data; name=\"profile[image_attributes][image]\"; filename=\"social-header.png\"\r\nContent-Type: image/png\r\n">, "imageable_id"=>"1", "imageable_type"=>"avatar"}}, "commit"=>"Update Profile", "id"=>"the-national"}
User Load (0.3ms) SELECT "users".* FROM "users" WHERE "users"."id" = $1 ORDER BY "users"."id" ASC LIMIT 1 [["id", 1]]
Profile Load (0.2ms) SELECT "profiles".* FROM "profiles" WHERE "profiles"."slug" = $1 ORDER BY "profiles"."id" ASC LIMIT 1 [["slug", "the-national"]]
CACHE (0.0ms) SELECT "profiles".* FROM "profiles" WHERE "profiles"."slug" = $1 ORDER BY "profiles"."id" ASC LIMIT 1 [["slug", "the-national"]]
User Load (0.3ms) SELECT "users".* FROM "users" WHERE "users"."id" = $1 LIMIT 1 [["id", 1]]
(0.1ms) BEGIN
Image Load (0.2ms) SELECT "images".* FROM "images" WHERE "images"."imageable_id" = $1 AND "images"."imageable_type" = $2 LIMIT 1 [["imageable_id", 1], ["imageable_type", "Profile"]]
Influence Load (0.3ms) SELECT "influences".* FROM "influences" INNER JOIN "influences_profiles" ON "influences"."id" = "influences_profiles"."influence_id" WHERE "influences_profiles"."profile_id" = $1 ORDER BY name asc [["profile_id", 1]]
Talent Load (0.3ms) SELECT "talents".* FROM "talents" INNER JOIN "profiles_talents" ON "talents"."id" = "profiles_talents"."talent_id" WHERE "profiles_talents"."profile_id" = $1 ORDER BY name asc [["profile_id", 1]]
Genre Load (0.3ms) SELECT "genres".* FROM "genres" INNER JOIN "genres_profiles" ON "genres"."id" = "genres_profiles"."genre_id" WHERE "genres_profiles"."profile_id" = $1 ORDER BY name asc [["profile_id", 1]]
(0.1ms) ROLLBACK
Rendered partials/_header.html.erb (3.8ms)
Influence Exists (0.3ms) SELECT 1 AS one FROM "influences" INNER JOIN "influences_profiles" ON "influences"."id" = "influences_profiles"."influence_id" WHERE "influences_profiles"."profile_id" = $1 LIMIT 1 [["profile_id", 1]]
Influence Exists (0.3ms) SELECT 1 AS one FROM "influences" INNER JOIN "influences_profiles" ON "influences"."id" = "influences_profiles"."influence_id" WHERE "influences_profiles"."profile_id" = $1 LIMIT 1 [["profile_id", 1]]
Influence Exists (0.2ms) SELECT 1 AS one FROM "influences" INNER JOIN "influences_profiles" ON "influences"."id" = "influences_profiles"."influence_id" WHERE "influences_profiles"."profile_id" = $1 LIMIT 1 [["profile_id", 1]]
Rendered partials/_loading_circle.html.erb (0.1ms)
Rendered partials/_chunk_tags.html.erb (9.8ms)
Talent Exists (0.3ms) SELECT 1 AS one FROM "talents" INNER JOIN "profiles_talents" ON "talents"."id" = "profiles_talents"."talent_id" WHERE "profiles_talents"."profile_id" = $1 LIMIT 1 [["profile_id", 1]]
Talent Exists (0.2ms) SELECT 1 AS one FROM "talents" INNER JOIN "profiles_talents" ON "talents"."id" = "profiles_talents"."talent_id" WHERE "profiles_talents"."profile_id" = $1 LIMIT 1 [["profile_id", 1]]
Talent Exists (0.2ms) SELECT 1 AS one FROM "talents" INNER JOIN "profiles_talents" ON "talents"."id" = "profiles_talents"."talent_id" WHERE "profiles_talents"."profile_id" = $1 LIMIT 1 [["profile_id", 1]]
Rendered partials/_loading_circle.html.erb (0.0ms)
Rendered partials/_chunk_tags.html.erb (8.3ms)
Genre Exists (0.2ms) SELECT 1 AS one FROM "genres" INNER JOIN "genres_profiles" ON "genres"."id" = "genres_profiles"."genre_id" WHERE "genres_profiles"."profile_id" = $1 LIMIT 1 [["profile_id", 1]]
Genre Exists (0.2ms) SELECT 1 AS one FROM "genres" INNER JOIN "genres_profiles" ON "genres"."id" = "genres_profiles"."genre_id" WHERE "genres_profiles"."profile_id" = $1 LIMIT 1 [["profile_id", 1]]
Genre Exists (0.2ms) SELECT 1 AS one FROM "genres" INNER JOIN "genres_profiles" ON "genres"."id" = "genres_profiles"."genre_id" WHERE "genres_profiles"."profile_id" = $1 LIMIT 1 [["profile_id", 1]]
Rendered partials/_loading_circle.html.erb (0.0ms)
Rendered partials/_chunk_tags.html.erb (6.0ms)
Rendered profiles/show.html.erb within layouts/application (46.4ms)
Rendered partials/_favicons.html.erb (56.4ms)
Rendered partials/_social_svgdefs.html.erb (0.1ms)
Rendered partials/_mini_svgdefs.html.erb (0.1ms)
Completed 200 OK in 225ms (Views: 153.8ms | ActiveRecord: 9.1ms)