Rails 茧 gem 产生重复
Rails cocoon gem producing duplicates
我正在为此寻找相当长一段时间的答案，但在其他情况下有效的解决方案不适用于我的情况。
问题 1：
单击按钮 "Dodaj skladnik" 或 "Dodaj krok" 时
我得到多个字段而不是一个（有时 2 有时 3 有时甚至 40）
到目前为止，我花了 3 个小时试图解决这个问题，但我不知道为什么会这样
当我按 ctrl+f5 时它起作用了，但只有一次....如果我再次尝试使用表单或重新加载问题仍然出现
我没有 coccon 本身的重复条目。
amon@AMUNET /app/amanda $ grep -rnw . -e 'cocoon'
Plik binarny ./tmp/cache/assets/sprockets/v3.0/7e/7e5wAAtpwJITUTZozWduRq866c-VsC2gAZvJOcVZmPo.cache pasuje do wzorca
Plik binarny ./tmp/cache/assets/sprockets/v3.0/0l/0l98NX_hEbCP2xKSXIBRKAyLnEDTcUK6gyw5MyNYbPo.cache pasuje do wzorca
Plik binarny ./tmp/cache/assets/sprockets/v3.0/rt/rtICrPE1OuOezvTCGzwYnqRsSHfhoYmMhu8dQSfP-is.cache pasuje do wzorca
./tmp/cache/assets/sprockets/v3.0/V1/V1yaq6iLPp3CDZSltLooShZ6SFBM5vWEjQhQSmoNWEU.cache:3:I"environment-version:ETTI"environment-paths;TTI"rails-env;TTI"Zprocessors:type=application/javascript&file_type=application/javascript&pipeline=self;TTI"{file-digest:///home/amon/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/cocoon-1.2.10/app/assets/javascripts/cocoon.js;TTF
./app/assets/javascripts/application.js:13://= require cocoon
./Gemfile:37:gem 'cocoon', '~> 1.2', '>= 1.2.10'
./Gemfile.lock:50: cocoon (1.2.10)
./Gemfile.lock:183: cocoon (~> 1.2, >= 1.2.10)
部分代码：
application.js
// This is a manifest file that'll be compiled into application.js, which will include all the files
// listed below.
//
// Any JavaScript/Coffee file within this directory, lib/assets/javascripts, vendor/assets/javascripts,
// or any plugin's vendor/assets/javascripts directory can be referenced here using a relative path.
//
// It's not advisable to add code directly here, but if you do, it'll appear at the bottom of the
// compiled file. JavaScript code in this file should be added after the last require_* statement.
//
// Read Sprockets README (https://github.com/rails/sprockets#sprockets-directives) for details
// about supported directives.
//
//= require jquery
//= require jquery_ujs
//= require turbolinks
//= require cocoon
//= require_tree .
recipes_controller.rb
class RecipesController < ApplicationController
before_action :find_recipe, only: [:show, :edit, :update, :destroy]
def index
@recipe = Recipe.all.order("created_at DESC")
end
def show
end
def new
@recipe = Recipe.new
end
def create
@recipe = Recipe.new(recipe_params)
if @recipe.save
redirect_to @recipe, notice: "Przepis zostal dodany"
else
render 'new'
end
end
def edit
end
def update
if @recipe.update(recipe_params)
redirect_to @recipe
else
render 'edit'
end
end
def destroy
@recipe.destroy
redirect_to root_path, notice: "Przepis zostal usuniety"
end
private
def recipe_params
params.require(:recipe).permit(:tittle, :description, :image, ingredients_attributes: [:id, :name, :_destroy], directions_attributes: [:id, :step, :_destroy] )
end
def find_recipe
@recipe = Recipe.find(params[:id])
end
end
_form.html.haml
=simple_form_for @recipe, html: {multipart: true} do |f|
- if @recipe.errors.any?
#errors
%p
= @recipe.errors.count
Prevent this recipe from saving
%ul
- @recipe.errors.full_messages.each do |msg|
%li= msg
.panel-body
= f.input :tittle, input_html: { class: 'form-control' }
= f.input :description, input_html: { class: 'form-control' }
= f.input :image, input_html: { class: 'form-control' }
.row
.col-md-6
%h3 Skladniki
#ingredients
= f.simple_fields_for :ingredients do |ingredient|
= render 'ingredient_fields', f: ingredient
.links
= link_to_add_association 'Dodaj skladnik', f, :ingredients, class: "btn btn-default add-button"
.col-md-6
%h3 Wskazowki
#directions
= f.simple_fields_for :directions do |direction|
= render 'direction_fields', f: direction
.links
= link_to_add_association 'Dodaj krok', f, :directions, class: "btn btn-default add-button"
= f.button :submit, class: "btn btn-primary"
application.html.haml
!!! 5
%html
%head
%title Amanda project
= stylesheet_link_tag 'application', media: 'all', 'data-turbolinks-track' => true
= javascript_include_tag 'application', 'data-turbolinks-track' => true
= csrf_meta_tags
%body
%nav.navbar.navbar-default
.container
.navbar-brand= link_to "Amanda project", root_path
%ul.nav.navbar-nav.navbar-right
%li= link_to "Dodaj nowy przepis", new_recipe_path
.container
- flash.each do |name, msg|
= content_tag :div, msg, class: "alert"
= yield
_ingredient_fields.html.haml
.form-inline.clearfix
.nested-fields
= f.input :name, input_html: { class: "form-input form-control" }
= link_to_remove_association "Usun", f, class: "form-button btn btn-default"
recipe.rb (型号)
class Recipe < ApplicationRecord
has_many :ingredients
has_many :directions
accepts_nested_attributes_for :ingredients,
reject_if: proc { |attributes| attributes['name'].blank? },
allow_destroy: true
accepts_nested_attributes_for :directions,
reject_if: proc { |attributes| attributes['step'].blank? },
allow_destroy: true
validates :tittle, :description, :image, presence: true
has_attached_file :image, styles: { :medium => "400x400#" }
validates_attachment_content_type :image, content_type: /\Aimage\/.*\Z/
end
问题 2
我也有保存它的问题。
即使我填写了多个成分和说明信息，我也会收到消息
Ingredients recipe must exist
现在对我来说这是一个巨大的障碍，所以请帮忙。
如 documentation 中所述，当使用 rails 5 时，您应该以不同的方式编写关联：
has_many :ingredients, inverse_of: :recipe
简而言之：因为 rails 5 默认需要 belongs_to 关系。虽然这绝对有道理，但这也意味着必须更明确地声明关联。保存嵌套项时，理论上父项在验证时尚未保存，因此 rails 需要帮助了解关系之间的 link。
第一个错误听起来像 turbolinks 错误：不知何故你多次包含 application.js 或 cocoon.js（例如，如果你将它放在页面底部 - - 从您显示的代码中看不到，但这可以解释）。 Turbolinks 将替换完整的正文内容而不是头部，因此正文中的任何 javascript 将被多次加载（导航，跟随 links），直到您真正刷新页面。
我正在为此寻找相当长一段时间的答案，但在其他情况下有效的解决方案不适用于我的情况。
问题 1： 单击按钮 "Dodaj skladnik" 或 "Dodaj krok" 时 我得到多个字段而不是一个（有时 2 有时 3 有时甚至 40）
到目前为止，我花了 3 个小时试图解决这个问题，但我不知道为什么会这样
当我按 ctrl+f5 时它起作用了，但只有一次....如果我再次尝试使用表单或重新加载问题仍然出现
我没有 coccon 本身的重复条目。
amon@AMUNET /app/amanda $ grep -rnw . -e 'cocoon'
Plik binarny ./tmp/cache/assets/sprockets/v3.0/7e/7e5wAAtpwJITUTZozWduRq866c-VsC2gAZvJOcVZmPo.cache pasuje do wzorca
Plik binarny ./tmp/cache/assets/sprockets/v3.0/0l/0l98NX_hEbCP2xKSXIBRKAyLnEDTcUK6gyw5MyNYbPo.cache pasuje do wzorca
Plik binarny ./tmp/cache/assets/sprockets/v3.0/rt/rtICrPE1OuOezvTCGzwYnqRsSHfhoYmMhu8dQSfP-is.cache pasuje do wzorca
./tmp/cache/assets/sprockets/v3.0/V1/V1yaq6iLPp3CDZSltLooShZ6SFBM5vWEjQhQSmoNWEU.cache:3:I"environment-version:ETTI"environment-paths;TTI"rails-env;TTI"Zprocessors:type=application/javascript&file_type=application/javascript&pipeline=self;TTI"{file-digest:///home/amon/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/cocoon-1.2.10/app/assets/javascripts/cocoon.js;TTF
./app/assets/javascripts/application.js:13://= require cocoon
./Gemfile:37:gem 'cocoon', '~> 1.2', '>= 1.2.10'
./Gemfile.lock:50: cocoon (1.2.10)
./Gemfile.lock:183: cocoon (~> 1.2, >= 1.2.10)
部分代码： application.js
// This is a manifest file that'll be compiled into application.js, which will include all the files
// listed below.
//
// Any JavaScript/Coffee file within this directory, lib/assets/javascripts, vendor/assets/javascripts,
// or any plugin's vendor/assets/javascripts directory can be referenced here using a relative path.
//
// It's not advisable to add code directly here, but if you do, it'll appear at the bottom of the
// compiled file. JavaScript code in this file should be added after the last require_* statement.
//
// Read Sprockets README (https://github.com/rails/sprockets#sprockets-directives) for details
// about supported directives.
//
//= require jquery
//= require jquery_ujs
//= require turbolinks
//= require cocoon
//= require_tree .
recipes_controller.rb
class RecipesController < ApplicationController
before_action :find_recipe, only: [:show, :edit, :update, :destroy]
def index
@recipe = Recipe.all.order("created_at DESC")
end
def show
end
def new
@recipe = Recipe.new
end
def create
@recipe = Recipe.new(recipe_params)
if @recipe.save
redirect_to @recipe, notice: "Przepis zostal dodany"
else
render 'new'
end
end
def edit
end
def update
if @recipe.update(recipe_params)
redirect_to @recipe
else
render 'edit'
end
end
def destroy
@recipe.destroy
redirect_to root_path, notice: "Przepis zostal usuniety"
end
private
def recipe_params
params.require(:recipe).permit(:tittle, :description, :image, ingredients_attributes: [:id, :name, :_destroy], directions_attributes: [:id, :step, :_destroy] )
end
def find_recipe
@recipe = Recipe.find(params[:id])
end
end
_form.html.haml
=simple_form_for @recipe, html: {multipart: true} do |f|
- if @recipe.errors.any?
#errors
%p
= @recipe.errors.count
Prevent this recipe from saving
%ul
- @recipe.errors.full_messages.each do |msg|
%li= msg
.panel-body
= f.input :tittle, input_html: { class: 'form-control' }
= f.input :description, input_html: { class: 'form-control' }
= f.input :image, input_html: { class: 'form-control' }
.row
.col-md-6
%h3 Skladniki
#ingredients
= f.simple_fields_for :ingredients do |ingredient|
= render 'ingredient_fields', f: ingredient
.links
= link_to_add_association 'Dodaj skladnik', f, :ingredients, class: "btn btn-default add-button"
.col-md-6
%h3 Wskazowki
#directions
= f.simple_fields_for :directions do |direction|
= render 'direction_fields', f: direction
.links
= link_to_add_association 'Dodaj krok', f, :directions, class: "btn btn-default add-button"
= f.button :submit, class: "btn btn-primary"
application.html.haml
!!! 5
%html
%head
%title Amanda project
= stylesheet_link_tag 'application', media: 'all', 'data-turbolinks-track' => true
= javascript_include_tag 'application', 'data-turbolinks-track' => true
= csrf_meta_tags
%body
%nav.navbar.navbar-default
.container
.navbar-brand= link_to "Amanda project", root_path
%ul.nav.navbar-nav.navbar-right
%li= link_to "Dodaj nowy przepis", new_recipe_path
.container
- flash.each do |name, msg|
= content_tag :div, msg, class: "alert"
= yield
_ingredient_fields.html.haml
.form-inline.clearfix
.nested-fields
= f.input :name, input_html: { class: "form-input form-control" }
= link_to_remove_association "Usun", f, class: "form-button btn btn-default"
recipe.rb (型号)
class Recipe < ApplicationRecord
has_many :ingredients
has_many :directions
accepts_nested_attributes_for :ingredients,
reject_if: proc { |attributes| attributes['name'].blank? },
allow_destroy: true
accepts_nested_attributes_for :directions,
reject_if: proc { |attributes| attributes['step'].blank? },
allow_destroy: true
validates :tittle, :description, :image, presence: true
has_attached_file :image, styles: { :medium => "400x400#" }
validates_attachment_content_type :image, content_type: /\Aimage\/.*\Z/
end
问题 2 我也有保存它的问题。 即使我填写了多个成分和说明信息，我也会收到消息
Ingredients recipe must exist
现在对我来说这是一个巨大的障碍，所以请帮忙。
如 documentation 中所述，当使用 rails 5 时，您应该以不同的方式编写关联：
has_many :ingredients, inverse_of: :recipe
简而言之：因为 rails 5 默认需要 belongs_to 关系。虽然这绝对有道理，但这也意味着必须更明确地声明关联。保存嵌套项时，理论上父项在验证时尚未保存，因此 rails 需要帮助了解关系之间的 link。
第一个错误听起来像 turbolinks 错误：不知何故你多次包含 application.js 或 cocoon.js（例如，如果你将它放在页面底部 - - 从您显示的代码中看不到，但这可以解释）。 Turbolinks 将替换完整的正文内容而不是头部，因此正文中的任何 javascript 将被多次加载（导航，跟随 links），直到您真正刷新页面。