值得注意的是，这是我的第一个Rails应用程序。我已经对此做了相当多的阅读，但我尝试的所有建议仍然无效。简而言之，我正在使用using (MhEntities DContext = new MhEntities())
{
string res = DContext.Database.SqlQuery<string>("SELECT MoneyforHealthEntities.Fn_LEVEL0_Acount_Id(@p0)", Account_Id).FirstOrDefault();
return Convert.ToInt64(res);
}
和Rails flash通知组件来通知用户他们何时尝试编辑他们不拥有的模型中的记录。这是一个简单的评论应用程序，允许登录的用户提交评论，如果他们创建了评论，他们也可以编辑它，但前提是他们创建了评论。这是我到目前为止所做的。
reviews_controller.rb
gem 'devise', '~> 3.5.1'如果您查看上述文件中的class ReviewsController < ApplicationController
before_action :set_review, only: [:show, :edit, :update, :destroy]
before_filter :authenticate_user!, except: [:index, :show]
# GET /reviews
# GET /reviews.json
def index
@reviews = Review.all
end
# GET /reviews/1
# GET /reviews/1.json
def show
end
# GET /reviews/new
def new
#@review = Review.new
@review = current_user.reviews.build
end
# GET /reviews/1/edit
def edit
@review = Review.find(params[:id])
if current_user.id == @review.user_id
# default action
else
#flash[:alert] = "You do not have permission to edit this Review."
#redirect_to @review
#flash.alert = "You do not have permission to edit this Review."
#redirect_to @review
redirect_to @review, alert: 'You do not have permission to edit this Review.'
#redirect_to @review, :flash => { :alert => 'You do not have permission to edit this Review.' }
end
end
# POST /reviews
# POST /reviews.json
def create
#@review = Review.new(review_params)
@review = current_user.reviews.build(review_params)
respond_to do |format|
if @review.save
format.html { redirect_to @review, notice: 'Review was successfully created.' }
format.json { render :show, status: :created, location: @review }
else
format.html { render :new }
format.json { render json: @review.errors, status: :unprocessable_entity }
end
end
end
# PATCH/PUT /reviews/1
# PATCH/PUT /reviews/1.json
def update
@review = Review.find(params[:id])
if current_user.id == @review.user_id
respond_to do |format|
if @review.update(review_params)
format.html { redirect_to @review, notice: 'Review was successfully updated.' }
format.json { render :show, status: :ok, location: @review }
else
format.html { render :edit }
format.json { render json: @review.errors, status: :unprocessable_entity }
end
end
else
redirect_to @review, notice: 'You do not have permission to edit this Review.'
end
end
# DELETE /reviews/1
# DELETE /reviews/1.json
def destroy
@review.destroy
respond_to do |format|
format.html { redirect_to reviews_url, notice: 'Review was successfully destroyed.' }
format.json { head :no_content }
end
end
private
# Use callbacks to share common setup or constraints between actions.
def set_review
@review = Review.find(params[:id])
end
# Never trust parameters from the scary internet, only allow the white list through.
def review_params
params.require(:review).permit(:title, :content)
end
end
，您可以看到我尝试过一些事情来传递Flash通知。无论我尝试什么，我都无法让它出现。这是节目视图代码。
评论/ show.html.erb
def edit它会在视图中显示<p id="notice"><%= notice %></p>
<p id="alert"><%= alert %></p>
<% flash.each do |name, msg| %>
<% content_tag(:div, msg, class: "alert alert-#{name}") %>
<% end %>
<p>
<strong>Title:</strong>
<%= @review.title %>
</p>
<p>
<strong>Content:</strong>
<%= @review.content %>
</p>
<%= link_to 'Edit', edit_review_path(@review) %> |
<%= link_to 'Back', reviews_path %>
或<p id="notice"><%= notice %></p>代码，但不会显示在<p id="alert"><%= alert %></p>循环内，这正是我要修复的内容。我想传递flash.each循环中指示的消息和消息类型。据我所知，这是在视图中显示Flash消息的非常标准的方式。
以下是我的 Gemfile ，以备不时之需。
flash.each这里发生了什么？我错过了什么？非常感谢提前！