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[英]Cloudinary::CarrierWave how to select the upload folder in Cloudinary
[英]Carrierwave does not create upload folder
我的主要问题是,通过载波上传文件时,文件并未真正上传。
我的控制台输出:
#<OptionPic id: 4, image_url: "game_of_thrones___tyrion_lannister_by_stanbos-d79k...", created_at: "2015-08-07 06:08:01", updated_at: "2015-08-07 06:08:01", option_id: 12>]>
该图像的调用如下
-@product.options.each do |option|
-option.option_pics.each do |op|
=image_tag op.image_url.to_s
如果我检查网页上的元素,则会得到以下信息:
<img src="/images/game_of_thrones___tyrion_lannister_by_stanbos-d79k0u9_modified.jpg" alt="Game of thrones tyrion lannister by stanbos d79k0u9 modified">
但是,上传器上的设置如下:
class ProductImageUploader < CarrierWave::Uploader::Base
# Include RMagick or MiniMagick support:
include CarrierWave::RMagick
# include CarrierWave::MiniMagick
# Choose what kind of storage to use for this uploader:
storage :file
# storage :fog
# Override the directory where uploaded files will be stored.
# This is a sensible default for uploaders that are meant to be mounted:
def store_dir
"uploads/#{model.class.to_s.underscore}/#{mounted_as}/#{model.id}"
end
不用说,我既没有在asset / images文件夹中创建图像,也没有创建public / uploads文件夹。
这在我的其他项目(使用与上面相同的语法创建的public / uploads文件夹)中完美运行,在该项目中图像作为单独的模型存储。 在我当前的项目中,我希望它们作为产品类的子选项。
结构如下:
型号-产品,选项,选项pic(ture)
一个产品可以有很多选项,而一个选项又可以有很多图片。 例如-产品是T恤。 选项包括:材料和颜色。 对于每种颜色,我想要一件不同的衬衫图片。
这就是为什么我的ProductsController中包含所有内容的原因:
Class ProductsController < ApplicationController
before_action :find_product, only: [:show]
def show
end
def index
@products = Product.all
end
def new
@product = Product.new
@option = @product.options.new
@option_pic = OptionPic.new
end
def edit
end
def create
@product = Product.create(product_params)
@option = @product.options.create(option_params)
@option.product_id = @product.id
@option.save
@option_pic = @option.option_pics.create(pic_params)
@option_pic.option_id = @option.id
flash[:success] = "Product successfully created!"
redirect_to products_path
end
private
def product_params
params.require(:product).permit(:title, :description, :advertising_text, :fancy_quote)
end
def option_params
params.require(:option).permit(:size, :weight, :price, :material, :product_id)
end
def pic_params
params.require(:option_pic).permit(:image_url, :option_id)
end
def find_product
@product = Product.find(params[:id])
end
end
我的optionpic(ture)模型:
class OptionPic < ActiveRecord::Base
mount_uploader :product_image, ProductImageUploader
belongs_to :option
end
我想我只是在犯一些愚蠢的新手错误,但是经过数小时的搜索,我无法弄清什么地方出了问题。
我发现了两件事-我使用image_url而不是picture_image并忘记了实际上将option_picture值保存在控制器中,即@option_pic.save
现在上传时没有数据传输:
SQL (0.3ms) INSERT INTO "option_pics" ("product_image", "option_id", "created_at", "updated_at") VALUES ($1, $2, $3, $4) RETURNING "id" [["product_image", nil], ["option_id", 18], ["created_at", "2015-08-07 08:03:28.559319"], ["updated_at", "2015-08-07 08:03:28.559319"]]
我将每个值从:image_url更新为:product_image(在视图中,在pic_params等中)
根据要求,我的上传表单:
%h1 Create new product
=form_for @product, url: products_path do |f|
%p
=f.label :title
=f.text_field :title
%br
=f.label :description
=f.text_area :description
%br
=f.label :advertising_text
=f.text_area :advertising_text
%br
=f.label :fancy_quote
=f.text_area :fancy_quote
%p
= fields_for @option do |o|
=o.label :price
=o.text_field :price
%br
=o.label :size
=o.text_field :size
%br
=o.label :weight
=o.text_field :weight
%br
=o.label :material
=o.text_field :material
%p
= fields_for @option_pic, html: { multipart: true } do |op|
= op.label 'Upload image'
= op.file_field :product_image
=f.submit
根据要求,我的日志参数
Started POST "/products" for ::1 at 2015-08-07 12:25:31 +0300
Processing by ProductsController#create as HTML
Parameters: {"utf8"=>"✓", "authenticity_token"=>"DOeZMvYpdoVmZRpsGmg2Gr9LIc9RYaS1KT1vdfhXI2BJaV3pPZZbZN8PJnvwQAig8wLPpIUORuf7Kjcw3BE6Zg==", "product"=>{"title"=>"fafa", "description"=>"", "advertising_text"=>"", "fancy_quote"=>""}, "option"=>{"price"=>"", "size"=>"", "weight"=>"", "material"=>""}, "option_pic"=>{"product_image"=>"level-3-on-rails-for-zombies-2-0eaaf0109f83459c5aedef30bdf8bd96.png"}, "commit"=>"Create Product"}
(0.1ms) BEGIN
SQL (0.3ms) INSERT INTO "products" ("title", "description", "advertising_text", "fancy_quote", "created_at", "updated_at") VALUES ($1, $2, $3, $4, $5, $6) RETURNING "id" [["title", "fafa"], ["description", ""], ["advertising_text", ""], ["fancy_quote", ""], ["created_at", "2015-08-07 09:25:31.365739"], ["updated_at", "2015-08-07 09:25:31.365739"]]
(0.3ms) COMMIT
(0.1ms) BEGIN
SQL (0.2ms) INSERT INTO "options" ("size", "material", "product_id", "created_at", "updated_at") VALUES ($1, $2, $3, $4, $5) RETURNING "id" [["size", ""], ["material", ""], ["product_id", 29], ["created_at", "2015-08-07 09:25:31.369112"], ["updated_at", "2015-08-07 09:25:31.369112"]]
(0.3ms) COMMIT
(0.1ms) BEGIN
(0.1ms) COMMIT
(0.1ms) BEGIN
SQL (0.3ms) INSERT INTO "option_pics" ("product_image", "option_id", "created_at", "updated_at") VALUES ($1, $2, $3, $4) RETURNING "id" [["product_image", nil], ["option_id", 21], ["created_at", "2015-08-07 09:25:31.372492"], ["updated_at", "2015-08-07 09:25:31.372492"]]
(0.3ms) COMMIT
Redirected to http://localhost:3000/products
Completed 302 Found in 10ms (ActiveRecord: 2.1ms)
您没有正确访问params
值。 以下将解决此问题:
def pic_params
params.require(:option_pic).require(:product_image)
end
另外,在构建OptionPic时必须使其属于Option:
def new
@product = Product.new
@option = @product.options.new
@option_pic = @option.option_pics.new
end
如果有人遇到相同的问题,我将发布解决方案-我决定使用嵌套属性重新创建该系统,现在一切正常!
因此,这里有3个模型:
class Product < ActiveRecord::Base
belongs_to :category
belongs_to :subcategory
has_many :options
has_and_belongs_to_many :product_sizes
accepts_nested_attributes_for :options
end
选项类,它是产品的子级
class Option < ActiveRecord::Base
belongs_to :product
has_many :option_pics
accepts_nested_attributes_for :option_pics
end
最后是option_pic,是Option的子代
class OptionPic < ActiveRecord::Base
mount_uploader :product_image, ProductImageUploader
belongs_to :option
end
在产品控制器中,我的new和create动作如下所示:
def new
@product = Product.new
option = @product.options.build
option_pic = option.option_pics.build
end
def edit
end
def create
@product = Product.new(product_params)
if @product.save!
flash[:success] = "Product successfully created!"
redirect_to products_path
end
end
private
def product_params
params.require(:product).permit(
:title, :description, :advertising_text, :fancy_quote, :category_id,
options_attributes: [:size, :weight, :price, :material, :product_id,
option_pics_attributes: [:product_image, :option_id]])
end
def find_product
@product = Product.find(params[:id])
end
字符串参数是双重嵌套的,这一点很重要。 同样重要的是form_for辅助程序的结构。 我没有重构它,所以现在它是一大清单。 那里的结构非常重要,我将option_pic的字段指定在“ f”变量的级别上,这很关键,并且没有上载任何图像。
=form_for @product, url: products_path do |f|
%p
=f.label :title
=f.text_field :title
%br
=f.label :description
=f.text_area :description
%br
=f.label :advertising_text
=f.text_area :advertising_text
%br
=f.label :fancy_quote
=f.text_area :fancy_quote
%br
=f.label :category_id
=f.collection_select :category_id, Category.all, :id, :title, { prompt: 'Please select category' }
%br
=f.label 'Product Size'
=f.collection_check_boxes(:product_size_ids, ProductSize.all, :id, :size)
%p
= f.fields_for :options do |builder|
=builder.label :price
=builder.text_field :price
%br
=builder.label :size
=builder.text_field :size
%br
=builder.label :weight
=builder.text_field :weight
%br
=builder.label :material
=builder.text_field :material
%br
=builder.fields_for :option_pics do |op|
= op.label 'Upload image'
= op.file_field :product_image
=f.submit
瞧,很棒的承诺:
(0.1ms) BEGIN
SQL (0.4ms) INSERT INTO "products" ("title", "description", "advertising_text", "fancy_quote", "category_id", "created_at", "updated_at") VALUES ($1, $2, $3, $4, $5, $6, $7) RETURNING "id" [["title", "builder"], ["description", ""], ["advertising_text", ""], ["fancy_quote", ""], ["category_id", 1], ["created_at", "2015-08-11 11:34:11.618298"], ["updated_at", "2015-08-11 11:34:11.618298"]]
SQL (0.2ms) INSERT INTO "options" ("size", "price", "material", "product_id", "created_at", "updated_at") VALUES ($1, $2, $3, $4, $5, $6) RETURNING "id" [["size", ""], ["price", 555], ["material", ""], ["product_id", 82], ["created_at", "2015-08-11 11:34:11.619678"], ["updated_at", "2015-08-11 11:34:11.619678"]]
SQL (0.5ms) INSERT INTO "option_pics" ("product_image", "option_id", "created_at", "updated_at") VALUES ($1, $2, $3, $4) RETURNING "id" [["product_image", "b3c839_bd43d840e031469495137fa74e31faf4.jpg_srz_428_428_75_22_0.5_1.2_75_jpg_srz"], ["option_id", 66], ["created_at", "2015-08-11 11:34:11.620837"], ["updated_at", "2015-08-11 11:34:11.620837"]]
(0.3ms) COMMIT
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