Heroku Rails错误ActiveRecord :: StatementInvalid

Heroku + Rails Error ActiveRecord::StatementInvalid

我在这里有两难选择。

我有一个评论支架和一个电影支架

当进入电影页面并创建新评论时，我在这里/ movies / 12 / comments / new(12为ID)

那是我的控制器

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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，出现此错误

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*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，如此处所述为什么在Rails中的：id在Postgresql中不起作用，但在MySQL中却起作用？但是仍然没有运气

有什么想法吗？
谢谢！

评论表(视图)

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<%= simple_form_for(@comment) do |f| %>
<%= f.error_notification %>

<%= f.input :subject %>
<%= f.input :body %>
<%= f.input :movie_id %>

<%= f.button :submit %>

<% end %>

Movie.rb

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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

Comment.rb

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class Comment < ActiveRecord::Base
attr_accessible :body, :movie_id, :subject, :user_id

belongs_to :user
belongs_to :movie

end

Comments_controller.rb

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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