回形针上传并显示图像不起作用
我在Windows 7上安装了paperclip – > 5.1和最新的ImageMagick(是的……我知道)运行Ruby 2.3.3和Rails 5.1.4。
我按照回形针说明的建议安装了file.exe,并将“C:\ Program Files(x86)\ GnuWin32 \ bin”添加到了我的PATH中。
当我上传我的照片时,我收到以下错误:
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,我收到以下错误:
ActionController::RoutingError (No route matches [GET] "/system/recipes/images/000/000/005/medium/Capture777.PNG"):
您能否就如何正确上传我的图片并进行展示给我指导? 我假设错误会给出一些输入。 我试图关注其他SO文章但到目前为止没有任何帮助。
这是我的routes.rb
Rails.application.routes.draw do resources :recipes root "recipes#index" end
这是我的控制器show / new actions和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
class Recipe "400x400#" } validates_attachment_content_type :image, content_type: /\Aimage\/.*\z/ end
这是我的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
= 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'
问题是您尝试使用样式选项的方式,它必须是styles
,替换它并再试一次:
class Recipe < ApplicationRecord has_attached_file :image, styles: { medium: '400x400#' } validates_attachment_content_type :image, content_type: /\Aimage\/.*\z/ end
这使得Paperclip只执行命令:
-
Command :: file -b --mime
来启动事务 -
Command :: file -b --mime
创建一个副本
代替:
-
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,但您可以访问其URL并通过图像标记显示它,但样式将不起作用。