我在这里有点进退两难。
我有一个评论脚手架和一个电影脚手架
当转到电影页面并创建新评论时，我去这里 /movies/12/comments/new （12 是 id）
做的是我的控制器
def new
@movie = Movie.find(params[:movie_id])
@comment = @movie.comments.new
@search = Movie.search(params[:q])
respond_to do |format|
format.html # new.html.erb
format.json { render json: @comment }
end
end
但是当我启动到heroku时，我得到了这个错误
*Processing by CommentsController#new as HTML
ActiveRecord::StatementInvalid (PG::Error: ERROR: invalid input syntax for integer: "movie_id"
Completed 500 Internal Server Error in 636ms
LINE 1: ... "movies".* FROM "movies" WHERE "movies"."id" = 'movie_id'...
Parameters: {"movie_id"=>"the-social-network"}
app/controllers/comments_controller.rb:99:in `load_movie'*
我尝试在最后删除@movie = Movie.find(params[:movie_id])或添加.to_i，如此处所述为什么 Rails 中的 this :id 不适用于 Postgresql 但它确实适用于 MySQL？，但仍然没有运气
有任何想法吗？谢谢！
Comment_form (查看)
<%= simple_form_for(@comment) do |f| %>
<%= f.error_notification %>
<div class="form-inputs">
<%= f.input :subject %>
<%= f.input :body %>
<%= f.input :movie_id %>
</div>
<div class="form-actions">
<%= f.button :submit %>
</div>
<% end %>
电影.rb
class Movie < ActiveRecord::Base
attr_accessible :title
has_many :comments, :dependent => :destroy
extend FriendlyId
friendly_id :titleyear, use: :history
def titleyear
"#{title} #{id}"
end
end
评论.rb
class Comment < ActiveRecord::Base
attr_accessible :body, :movie_id, :subject, :user_id
belongs_to :user
belongs_to :movie
end
Comments_controller.rb
class CommentsController < ApplicationController
# GET /comments
# GET /comments.json
before_filter :load_movie
before_filter :authenticate_user!, only: [:new,:create,:edit,:destroy]
def index
@comments = @movie.comments.all
@search = Movie.search(params[:q])
respond_to do |format|
format.html # index.html.erb
format.json { render json: @comments }
end
end
# GET /comments/1
# GET /comments/1.json
def show
@comment = Comment.find(params[:id])
@search = Movie.search(params[:q])
respond_to do |format|
format.html # show.html.erb
format.json { render json: @comment }
end
end
# GET /comments/new
# GET /comments/new.json
def new
@movie = Movie.find(params[:movie_id])
@comment = @movie.comments.new
@search = Movie.search(params[:q])
respond_to do |format|
format.html # new.html.erb
format.json { render json: @comment }
end
end
# GET /comments/1/edit
def edit
@comment = Comment.find(params[:id])
@search = Movie.search(params[:q])
end
# POST /comments
# POST /comments.json
def create
@comment = Comment.new(params[:comment])
@search = Movie.search(params[:q])
respond_to do |format|
if @comment.save
format.html { redirect_to :back }
format.json { render json: @comment, status: :created, location: @comment }
else
format.html { render action: "new" }
format.json { render json: @comment.errors, status: :unprocessable_entity }
end
end
end
# PUT /comments/1
# PUT /comments/1.json
def update
@comment = Comment.find(params[:id])
@search = Movie.search(params[:q])
respond_to do |format|
if @comment.update_attributes(params[:comment])
format.html { redirect_to (@movie), notice: 'Comment was successfully updated.' }
format.json { head :no_content }
else
format.html { render action: "edit" }
format.json { render json: @comment.errors, status: :unprocessable_entity }
end
end
end
# DELETE /comments/1
# DELETE /comments/1.json
def destroy
@comment = Comment.find(params[:id])
@comment.destroy
respond_to do |format|
format.html { redirect_to comments_url }
format.json { head :no_content }
end
end
private
def load_movie
@movie = Movie.find_by_id(:movie_id)
end
end