rails param is missing or the value is empty: post - ruby-on-rails

Question

i have been stuck on this problem for a while now and have searched through solution after solution and so far, the ones i have come across do not work.
i made a new rails scaffold for a new Object for my application, i have the table set up and i can view the Post objects when i run the server.
The problem when i go to view the Post objects when my server is running, it's content does not display, and i cannot update the objects this error gets thrown:
param is missing or the value is empty: post
The Posts table in the database looks like this:
posts table
As you can see, the field content has data that i want to display on my page when i go to view said Post.
This is what comes up instead:
what i see when running the server
AS you can see, it wont display the content of the content field.
This is my posts_controller.rb
class PostsController < ApplicationController
# you may want to udpate these posts? typo's outdated info?
before_action :set_post, only: [:show, :edit, :update, :destroy]
# GET /posts
# GET /posts.json
def index
#posts = Post.all
end
# GET /posts/1
# GET /posts/1.json
def show
end
# GET /posts/new
def new
#post = Post.new
end
# GET /posts/1/edit
def edit
end
# POST /posts
# POST /posts.json
def create
#post = Post.new(post_params)
respond_to do |format|
if #post.save
format.html { redirect_to #post, notice: 'Post was successfully created.' }
format.json { render action: 'show', status: :created, location: #post }
else
format.html { render action: 'new' }
format.json { render json: #post.errors, status: :unprocessable_entity }
end
end
end
# PATCH/PUT /posts/1
# PATCH/PUT /posts/1.json
def update
respond_to do |format|
if #post.update(post_params)
format.html { redirect_to #post, notice: 'Post was successfully updated.' }
format.json { head :no_content }
else
format.html { render action: 'edit' }
format.json { render json: #post.errors, status: :unprocessable_entity }
end
end
end
# DELETE /posts/1
# DELETE /posts/1.json
def destroy
#post.destroy
respond_to do |format|
format.html { redirect_to posts_url }
format.json { head :no_content }
end
end
private
# Use callbacks to share common setup or constraints between actions.
def set_post
#post = Post.find(params[:id])
end
# Never trust parameters from the scary internet, only allow the white list through.
def post_params
params.require(:post).permit(:content)
end
end
i thought this would allow me to see the content
def post_params
params.require(:post).permit(:content)
end
And i thought this is what defines:post because of before_action :set_post, only: [:show, :edit, :update, :destroy]
def set_post
#post = Post.find(params[:id])
end
This is what is shown on the error page in rails:
{"utf8"=>"✓",
"_method"=>"patch",
"authenticity_token"=>"tHFQAWv08aUoi7ndZsVC1aCNJkYP6hE8w+89NTTpBjc=",
"commit"=>"Update Post",
"id"=>"2"}
I am really confused to why this is happening, im new to rails so no doubt im missing something basic.
Thanks,
Chris.

Answer 1

Your request is missing the post param:
{"utf8"=>"✓",
"_method"=>"patch",
"authenticity_token"=>"tHFQAWv08aUoi7ndZsVC1aCNJkYP6hE8w+89NTTpBjc=",
"commit"=>"Update Post",
"id"=>"2"}
This is most likely due to an error in the form in your app/views/posts/edit.html.erb view. The form should look something like this:
<%= form_for #post, url: {action: "edit"} do |f| %>
<%= f.text_area :content %>
<%= end %>
You can read more about forms in the rails guides.