我有一个自定义重新排序操作，它通过ajax创建新项目。 在对网站的其他部分进行一些更改后，新操作无效。
当我转到页面categories/reorder或categories/new时，它会正确加载页面，但前提是我注释掉@category = Category.new()行。
当我尝试设置@category = Category.new()，@category = Category.new(:parent_id => params[:parent_id])或@category = Category.new时，它会向我显示错误消息：
No route matches {:action=>"edit", :controller=>"categories", :id=>#<Category _id: 515ee18c10188f64fb000001, created_at: nil, updated_at: nil, deleted_at: nil, ancestry: nil, user_id: nil, name: nil, description: nil, image: nil, lock: nil, _slugs: []>}
我删除了我的数据库以防有一些条目以某种方式给我这个错误，但是在再次登录时它仍然给我这个消息。
match '/auth/:provider/callback' => 'sessions#create'
match '/auth/failure' => 'sessions#failure'
match '/signout' => 'sessions#destroy', :as => :signout
match '/signin' => 'sessions#new', :as => :signin
match "reorder/symbols" => "categories#reorder", :via => :get, :as => :reorder_symbols
resources :pages do
resources :blocks do
collection { post :sort }
end
end
get 'symbols/:id/search/', to: 'categories#search', as: :sift_meanings
get "logout" => "sessions#destroy", :as => "logout"
get "login" => "sessions#new", :as => "login"
get "signup" => "users#new", :as => "signup"
resources :users
resources :sessions
match "meanings/:id/delete" => "meanings#destroy", :via => :get, as: :delete_meaning
match "symbols/gallery/:id" => "categories#gallery", :via => :get
resources :symbols, :as => :categories, :controller => :categories do
resources :meanings
collection {post :sort}
end
root :to => 'categories#index'
class CategoriesController < ApplicationController
helper :lego
helper :meanings
def index
@categories = Category.all
if params[:id]
@categories = Category.find(params[:id]) #if params[:id]
@categories = @categories.subtree.arrange(:order => 'name')
elsif params[:view] == "alpha"
@alphabet = Category.all.group_by{|c| c.name[0]}
@see_kids = false
@categories = @categories.sort(:name => "ASC") if !params[:letter]
@categories = @categories.where(name: eval("/^#{params[:letter]}/i")).sort(:name => "ASC") if params[:letter]
else
# @categories = Category.all
@categories = @categories.arrange(:order => 'name') #if params[:view] != "list"
end
respond_to do |format|
format.html # index.html.erb
format.js
format.json { render json: @categories }
end
end
def reorder
if Rails.env != "production" && !request.xhr?
flash[:info] = "Currently in #{Rails.env} mode."
end
@categories = Category.arrange(:order => 'name')
# @category = Category.new
@next = Category.count
respond_to do |format|
format.html # index.html.erb
format.js
format.json { render json: @categories }
end
end
def sort
params[:category].each do |id, attr|
thisCat = params[:category][id]
@category = Category.where(:_id => id).first
if thisCat.nil? || thisCat == 'null'
@category.parent_id = nil
else
@category.parent_id = thisCat.to_s
end
@category.save
end
end
def gallery
@categories = Category.arrange(:order => 'name')
@category = Category.find(params[:id])
@siblings = Category.siblings_of(params[:id])
respond_to do |format|
format.html # index.html.erb
format.js
format.json { render json: @category }
end
end
def show
@categories = Category.arrange(:order => 'name')
@category = Category.find(params[:id])
@updater = User.find(@category.user) || nil
@siblings = Category.siblings_of(params[:id])
@meanings = @category.meanings #Meaning.where(:category_id => params[:id])
@belief_list = []
@culture_list = []
@contributors = []
@connotations = []
for meaning in @meanings
for belief in meaning.beliefs
@belief_list << belief
end
for culture in meaning.cultures
@culture_list << culture
end
@connotations << meaning.connotation
@contributors << meaning.user
end
@beliefs = @belief_list.uniq
@cultures = @culture_list.uniq
@contributors = @contributors.uniq
@connotations = @connotations.uniq
respond_to do |format|
format.html # show.html.erb
format.js
format.json { render json: @category }
end
end
def search
@categories = Category.arrange(:order => 'name')
@category = Category.find(params[:id])
@meanings = @category.meanings
@meanings = @meanings.where(:beliefs => params[:beliefs]) if params[:beliefs]
@meanings = @meanings.where(:cultures => params[:cultures]) if params[:cultures]
@meanings = @meanings.where(:connotation => params[:connotation]) if params[:connotation]
@meanings = @meanings.where(:user => params[:user]) if params[:user]
end
# GET /categories/new
# GET /categories/new.json
def new
@category = Category.new(:parent_id => params[:parent_id])
# @category.photo.build
respond_to do |format|
format.html # new.html.erb
format.js
format.json { render json: @category }
end
end
# GET /categories/1/edit
def edit
@category = Category.find(params[:id])
end
# POST /categories
# POST /categories.json
def create
@category = Category.new(params[:category])
@category.user = current_user
@categories = Category.arrange(:order => :created_at)
if @category.save
flash[:success] = "<h4><i class=icon-ok></i> '#{@category.name}' was successfully created.</h4>"
end
respond_to do |format|
if @category.save
format.html { redirect_to @categories, notice: 'Category was successfully created.' }
format.js
format.json { render json: @categories, status: :created, location: @category }
else
format.html { render action: "new" }
format.js
format.json { render json: @category.errors, status: :unprocessable_entity }
end
end
end
# PUT /categories/1
# PUT /categories/1.json
def update
@category = Category.find(params[:id])
@category.user = current_user
flash[:success] = "<h4><i class=icon-ok></i> #{@category.name} was successfully updated.</h4>"
respond_to do |format|
if @category.update_attributes(params[:category])
format.html { redirect_to @category}
format.js
format.json { head :no_content }
else
format.html { render action: "edit", error: "Unable to update '#{@category.name}'", status: :unprocessable_entity }
format.json { render json: @category.errors, status: :unprocessable_entity }
end
end
end
# DELETE /categories/1
# DELETE /categories/1.json
def destroy
@category = Category.find(params[:id])
@category.destroy
flash[:alert] = "<h4><i class=icon-warning-sign></i> Warning. You have deleted the category '#{@category.name}'.</h4>".html_safe
respond_to do |format|
format.html { redirect_to categories_url }
format.json { head :no_content }
format.js
end
end
def has_sidebar?
self.has_children?
end
private
end
唯一需要注意的是，我发现在恢复到较旧的工作版本时，我必须重新启动服务器，因为没有正确设置Twitter Bootstrap变量。但我认为这不应该影响到这一点。
答案 0 :(得分：0)
如果您遵循堆栈跟踪，它将显示错误的位置。由于您提到只有当您添加对@category = Category.new的调用时才会发生这种情况，我只能认为这是因为您使用@category来创建编辑链接。但由于@category是一个新对象，你会收到错误。尝试查看可以找到编辑链接的视图文件。