RoR NoMethodError in Posts#new - ruby-on-rails

Question

So I've been building an app using rails and the google datastore. I keep encountering an error in my new.html.erb file where I get the NoMethodError.
I've scoured looking for a solution to my problem and it's most likely a simple typo somewhere in my code. I've been staring at the code for hours so maybe some fresh new eyes can help me figure it out
This is my posts_controller.rb
class PostsController < ApplicationController
PER_PAGE = 10
def index
#post, #cursor = Post.query limit: PER_PAGE, cursor: params[:cursor]
end
def new
#post = Post.new
end
def create
#post = Post.new post_params
if #post.save
flash[:success] = "Posted"
redirect_to posts_path(#post)
else
render :new
end
end
def edit
#post = Post.find(params[:id])
end
def update
#post = Post.find(params[:id])
if #post.update(post_params)
redirect_to #post
else
render 'edit'
end
end
def show
#post = Post.find(params[:id])
end
def destroy
#post = Post.find(params[:id])
#post.destroy
redirect_to posts_path
end
private
def post_params
params.require(:post).permit(:title, :body)
end
end
This is my new.html.erb
<h1>Create Post</h1>
<%= form_for #post do |f| %>
<% if #post.errors.any? %>
<% #post.errors.full_messages.each do |msg| %>
<div class="alert alert danger"><%= msg %></div>
<% end %>
<% end %>
<div class="form-group">
<%= f.label:title %><br>
<%= f.text_field(:title, {:class => 'form-control'}) %>
</div>
<div class="form-group">
<%= f.label:body %><br>
<%= f.text_area(:body, {:class => 'form-control'}) %>
</div>
<p>
<%= f.submit({:class => 'btn btn-primary'}) %>
</p>
<% end %>
This is my model post.rb
class Post
attr_accessor :title, :body
# Return a Google::Cloud::Datastore::Dataset for the configured dataset.
# The dataset is used to create, read, update, and delete entity objects.
def self.dataset
#dataset ||= Google::Cloud::Datastore.new(
project: Rails.application.config.
database_configuration[Rails.env]["dataset_id"]
)
end
# Query Book entities from Cloud Datastore.
#
# returns an array of Book query results and a cursor
# that can be used to query for additional results.
def self.query options = {}
query = Google::Cloud::Datastore::Query.new
query.kind "Post"
query.limit options[:limit] if options[:limit]
query.cursor options[:cursor] if options[:cursor]
results = dataset.run query
posts = results.map {|entity| Book.from_entity entity }
if options[:limit] && results.size == options[:limit]
next_cursor = results.cursor
end
return posts, next_cursor
end
# [START from_entity]
def self.from_entity entity
post = Post.new
post.id = entity.key.id
entity.properties.to_hash.each do |name, value|
post.send "#{name}=", value if post.respond_to? "#{name}="
end
post
end
# [END from_entity]
# [START find]
# Lookup Book by ID. Returns Book or nil.
def self.find id
query = Google::Cloud::Datastore::Key.new "Post", id.to_i
entities = dataset.lookup query
from_entity entities.first if entities.any?
end
# [END find]
# [START validations]
# Add Active Model validation support to Book class.
include ActiveModel::Validations
validates :title, presence: true
# [END validations]
# Save the book to Datastore.
# #return true if valid and saved successfully, otherwise false.
def save
if valid?
entity = to_entity
Post.dataset.save entity
self.id = entity.key.id
true
else
false
end
end
end
routes.rb
Rails.application.routes.draw do
get 'auth/:provider/callback', to: 'sessions#create'
get 'auth/failure', to: redirect('/')
get 'signout', to: 'sessions#destroy', as: 'signout'
resources :sessions, only: [:create, :destroy]
resource :main, only: [:show]
resources :posts
root to: 'posts#index', as: "home"
# For details on the DSL available within this file, see http://guides.rubyonrails.org/routing.html
end
EDIT: This is the error log that I'm getting
ActionView::Template::Error (undefined method `to_key' for #<Post:0x2ae2c68>
Did you mean? to_query):
1: <h1>Create Post</h1>
2: <%= form_for #post do |f| %>
3: <% if #post.errors.any? %>
4: <% #post.errors.full_messages.each do |msg| %>
5: <div class="alert alert danger"><%= msg %></div>
app/views/posts/new.html.erb:2:in `_app_views_posts_new_html_erb__241418705_22466964'

Answer 1

Your Post Model is a plain ruby object but you treat it like an ActiveModel/ActiveRecord object.
Try adding
include ActiveModel::Model inside the Post model like so:
class Post
include ActiveModel::Model
...
end

Answer 2

You have defined #posts in new method but you are using #post in the new.html.erb. Which is the reason for the error. Keep the same name either #posts or #post