class PostsController < ApplicationController

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

    if @post.update(params[:post].permit(:title, :text))
        redirect_to @post
    else
        render 'edit'
    end
end

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

        redirect_to display_posts_path
    end

    private

    def post_params
    params.require(:post).permit(:title, :text)
end
end

@post.update(params[:post].permit(:title, :text))

@post.update_attributes(:title => params[:post][:title], :text => params[:post][:text])