我在运行Ruby 2.3.3和Rails 5.1.4的Windows 7上安装了回形针-> 5.1和最新的ImageMagick.
I installed paperclip -> 5.1 and latest ImageMagick on Windows 7(yeah..i know) running Ruby 2.3.3 and Rails 5.1.4.
我按照回形针说明的建议安装了file.exe,并在"PATH"中添加了"C:\ Program Files(x86)\ GnuWin32 \ bin".
I installed file.exe as suggested by paperclip instructions and added 'C:\Program Files (x86)\GnuWin32\bin' to my PATH.
上传照片时出现以下错误:
When i upload my pictures i get the following error:
ActionController::RoutingError (No route matches [GET] "/images/medium/missing.png"):当我尝试查看显示页面以查看图像时,出现以下错误:
and when i try to view the show page to see the images i get the following error:
ActionController::RoutingError (No route matches [GET] "/system/recipes/images/000/000/005/medium/Capture777.PNG"):您能为我提供有关如何正确上传和显示图像的指导吗?我假设错误会提供一些输入.我尝试关注其他SO文章,但到目前为止没有任何帮助.
Can you give me guidance on how to properly upload my image and show it? I'm assuming the errors would give some input. I tried to follow other SO articles but nothing helped so far.
这是我的路线.rb
Rails.application.routes.draw do resources :recipes root "recipes#index" end
这是我的控制器显示/新操作和find_recipe参数
Here is my controller show/new actions and find_recipe params
def show @recipe = find_recipe end def new @recipe = Recipe.new end private def find_recipe @recipe = Recipe.find(params[:id]) end def recipe_params params.require(:recipe).permit(:title, :description, :image) end
这是我的模特
Here is my Model
class Recipe < ApplicationRecord has_attached_file :image, style: { :medium => "400x400#" } validates_attachment_content_type :image, content_type: /\Aimage\/.*\z/ end
这是我的show.html.haml
Here is my show.html.haml
= image_tag @recipe.image.url(:medium, class: "recipe_image") %h1= @recipe.title %p= @recipe.description = link_to 'Back', root_path, class: 'btn btn-info' = link_to 'Edit', edit_recipe_path, class: 'btn btn-primary' = link_to 'Delete',recipe_path, method: :delete, data: { confirm: 'Are you sure?' }, class: 'btn btn-danger'
这是我的_form.html.haml
Here is my _form.html.haml
= simple_form_for @recipe, html: { multipart: true } do |f| - if @recipe.errors.any? #errors %p = @recipe.errors.count Prevented this recipe from saving %ul - @recipe.errors.full_messages.each do |msg| %li = msg .panel-body = f.input :title, input_html: { class: 'form-control' } = f.input :description, input_html: { class: 'form-control' } = f.file_field :image, input_html: { class: 'form-control' } = f.button :submit, class: 'btn btn-primary'推荐答案
问题是您尝试使用样式选项的方式,它必须为styles,将其替换并重试:
The problem is the way you're trying to use the styles option, it must be styles, replace it and try again:
class Recipe < ApplicationRecord has_attached_file :image, styles: { medium: '400x400#' } validates_attachment_content_type :image, content_type: /\Aimage\/.*\z/ end这使得Paperclip仅执行命令:
This makes Paperclip only execute the commands:
- Command :: file -b --mime开始交易
- Command :: file -b --mime创建副本
- Command :: file -b --mime to start the transaction
- Command :: file -b --mime to create a copy
相反:
- Command :: file -b --mime
- Command :: identify -format
- Command :: identify -format %m
- Command :: convert
- Command :: file -b --mime
- Command :: file -b --mime
- Command :: identify -format
- Command :: identify -format %m
- Command :: convert
- Command :: file -b --mime
因此,您无法通过:medium样式获取图像,但是可以访问其url并通过image标签显示它,但是样式无效.
Hence you can't get the image by the :medium style, but you can access its url and show it through an image tag, but styles won't work.
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回形针上传并显示图像不起作用
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