can't convert Symbol into String

rubyonrails-talk
1

Hello,

I’m following the tutorial at http://guides.rubyonrails.org/getting_started.html. I got to the point where adding new posts should be functional (the end of 5.7). When I try to submit a post, I receive the error stating “Can’t convert Symbol into String”. The trace shows:

app/controllers/posts_controller.rb:16:in `post_params'
app/controllers/posts_controller.rb:6:in `create'

   This error occurred while loading the following files:
post

The code in my posts_controller.rb file is:

class PostsController < ApplicationController

def new

end

def create

	@post = Post.new(params[:post].permit(:title, :text))

	@post.save

	redirect_to @post

end

def show

	@post = Post.find(params[:id])

end

private

	def post_params

		params.require(:post).permit(:title, :text)

end

end

2

This looks like your code is expecting strong_parameters to be setup (available as a gem in rails 3.2, turned on by default in 4.0) but your app isn’t using strong parameters. Which version of rails are you using ?

Fred

3

change @post = Post.new(params[:post].permit(:title, :text)) to @post = Post.new(post_params).

you only need use Post.new([methods])

[methods] => define on private methods

thats is your strong parameter works…

Pada Minggu, 07 Juli 2013 4:34:53 UTC+7, Josh Swasey menulis: