メッセージを投稿し、保存しようとするとPOSTではなく、PATCHになる

Question

前提・実現したいこと

diary（メッセージ）を投稿しようとしたところ、以下のエラーが出ました。
投稿を作成し保存するので、POSTであるはずが、PATCHになっているのはなぜでしょうか。

該当のソースコード

【diaries.controllers.rb】

class DiariesController < ApplicationController
    def index
        @user = current_user
        @diaries = @user.diaries.order("created_at DESC")
    end

    def new
        @user = current_user
        @diary = Diary.new
    end

    def create
        @diary = current_user.diaries.new(diary_params)
        if @diary.save
          redirect_to root_path
        else
          redirect_to root_path
        end
    end
    private

    def diary_params
        params.require(:diary).permit(:writing).merge(user_id: current_user.id)
    end
end

【routes.rb】

Rails.application.routes.draw do
  devise_for :users
  post 'diaries/create' => 'diaries#create'

  root to: "rooms#index"
  resources :users, only: [:edit, :update] do
    resources :diaries, only: [:new, :create]  end
end

【新規投稿ページ】

<%= form_with model: [@diary, @user], class: 'form', url:user_diaries_path(@user), local: true do |f| %>
  <div class="form-input">
    <%= f.text_field :writing, class: 'form-message', placeholder: 'type a message' %>
      <%= hidden_field_tag :user_id,@user.id %>
  </div>

  <%= f.submit '送信', class: 'form-submit' %>
<% end %>

【log】

Started GET "/users/3/diaries/new" for ::1 at 2020-12-25 21:27:41 +0900
Processing by DiariesController#new as HTML
  Parameters: {"user_id"=>"3"}
  User Load (0.2ms)  SELECT `users`.* FROM `users` WHERE `users`.`id` = 3 ORDER BY `users`.`id` ASC LIMIT 1
  Rendering diaries/new.html.erb within layouts/application
  Rendered diaries/new.html.erb within layouts/application (Duration: 1.0ms | Allocations: 478)
Completed 200 OK in 16ms (Views: 13.5ms | ActiveRecord: 0.2ms | Allocations: 20671)


Started PATCH "/diaries/create" for ::1 at 2020-12-25 21:27:43 +0900
  
ActionController::RoutingError (No route matches [PATCH] "/diaries/create"):
  
actionpack (6.0.3.4) lib/action_dispatch/middleware/debug_exceptions.rb:36:in `call'
web-console (4.0.4) lib/web_console/middleware.rb:132:in `call_app'
web-console (4.0.4) lib/web_console/middleware.rb:28:in `block in call'
web-console (4.0.4) lib/web_console/middleware.rb:17:in `catch'
web-console (4.0.4) lib/web_console/middleware.rb:17:in `call'
actionpack (6.0.3.4) lib/action_dispatch/middleware/show_exceptions.rb:33:in `call'
railties (6.0.3.4) lib/rails/rack/logger.rb:37:in `call_app'
railties (6.0.3.4) lib/rails/rack/logger.rb:26:in `block in call'
activesupport (6.0.3.4) lib/active_support/tagged_logging.rb:80:in `block in tagged'
activesupport (6.0.3.4) lib/active_support/tagged_logging.rb:28:in `tagged'
activesupport (6.0.3.4) lib/active_support/tagged_logging.rb:80:in `tagged'
railties (6.0.3.4) lib/rails/rack/logger.rb:26:in `call'
sprockets-rails (3.2.2) lib/sprockets/rails/quiet_assets.rb:13:in `call'
actionpack (6.0.3.4) lib/action_dispatch/middleware/remote_ip.rb:81:in `call'
actionpack (6.0.3.4) lib/action_dispatch/middleware/request_id.rb:27:in `call'
rack (2.2.3) lib/rack/method_override.rb:24:in `call'
rack (2.2.3) lib/rack/runtime.rb:22:in `call'
activesupport (6.0.3.4) lib/active_support/cache/strategy/local_cache_middleware.rb:29:in `call'
actionpack (6.0.3.4) lib/action_dispatch/middleware/executor.rb:14:in `call'
actionpack (6.0.3.4) lib/action_dispatch/middleware/static.rb:126:in `call'
rack (2.2.3) lib/rack/sendfile.rb:110:in `call'
actionpack (6.0.3.4) lib/action_dispatch/middleware/host_authorization.rb:82:in `call'
webpacker (4.3.0) lib/webpacker/dev_server_proxy.rb:23:in `perform_request'
rack-proxy (0.6.5) lib/rack/proxy.rb:57:in `call'
railties (6.0.3.4) lib/rails/engine.rb:527:in `call'
puma (3.12.6) lib/puma/configuration.rb:227:in `call'
puma (3.12.6) lib/puma/server.rb:706:in `handle_request'
puma (3.12.6) lib/puma/server.rb:476:in `process_client'
puma (3.12.6) lib/puma/server.rb:334:in `block in run'
puma (3.12.6) lib/puma/thread_pool.rb:135:in `block in spawn_thread'

補足情報（FW/ツールのバージョンなど）

rails 6.0

Answer 1

form_with model: [@diary, @user]

逆です。

form_with model: [@user, @diary]

Comments

[moto12]

解決致しました。ありがとうございました！

順番が違うだけで変わってくるんですね...