Я устанавливаю Ubuntu, RoR и все компоненты RoR. Затем я обновляю вопрос. Мне нужно получить форму, как на этом снимке экрана . Мне нужно это часть . Чтобы он появился после нажатия кнопки Add. Я понимаю логику добавления формы после нажатия кнопки, но не могу понять, как должен выглядеть код самой формы. Даже форма только с text_field запускает сайт с ошибкой 500. Я, возможно, многого не знаю, я просто изучаю RoR.
index.html.erb
<style type="text/css">
p{
font-family: Times New Roman
}
</style>
<p>
<strong><h1><%= @title %></h1>
<br><br><br>
<% @projects.each do |project| %>
<h2 style="text-transform: uppercase"><%= project.title %></h2>
<ul>
<% @todos.each do |todo| %>
<% if todo.project_id == project.id %>
<li><%= todo.text %></li>
<% end %>
<% end %>
</ul>
<% end %>
<h2>Новая задача</h2>
<%= form_with(model: @todo, local: true) do |todo| %>
<%= todo.text_field :text %>
<%= todo.select (:project_id, option_for_select(project_array)) %>
<%= todo.submit "Отмена"%>
<%= todo.submit "ОК" %>
<% end %>
</strong>
</p>
projects_controller.rb
class ProjectsController < ApplicationController
before_action :set_project, only: [:show, :edit, :update, :destroy]
# GET /projects
# GET /projects.json
def index
@projects = Project.all
end
# GET /projects/1
# GET /projects/1.json
def show
end
# GET /projects/new
def new
@project = Project.new
end
# GET /projects/1/edit
def edit
end
# POST /projects
# POST /projects.json
def create
@project = Project.new(project_params)
respond_to do |format|
if @project.save
format.html { redirect_to @project, notice: 'Project was successfully created.' }
format.json { render :show, status: :created, location: @project }
else
format.html { render :new }
format.json { render json: @project.errors, status: :unprocessable_entity }
end
end
end
# PATCH/PUT /projects/1
# PATCH/PUT /projects/1.json
def update
respond_to do |format|
if @project.update(project_params)
format.html { redirect_to @project, notice: 'Project was successfully updated.' }
format.json { render :show, status: :ok, location: @project }
else
format.html { render :edit }
format.json { render json: @project.errors, status: :unprocessable_entity }
end
end
end
# DELETE /projects/1
# DELETE /projects/1.json
def destroy
@project.destroy
respond_to do |format|
format.html { redirect_to projects_url, notice: 'Project was successfully destroyed.' }
format.json { head :no_content }
end
end
private
# Use callbacks to share common setup or constraints between actions.
def set_project
@project = Project.find(params[:id])
end
# Never trust parameters from the scary internet, only allow the white list through.
def project_params
params.require(:project).permit(:title)
end
end
todos_controller.rb
class TodosController < ApplicationController
before_action :set_todo, only: [:show, :edit, :update, :destroy]
# GET /todos
# GET /todos.json
def index
@todos = Todo.all
end
# GET /todos/1
# GET /todos/1.json
def show
end
# GET /todos/new
def new
@todo = Todo.new
end
# GET /todos/1/edit
def edit
end
# POST /todos
# POST /todos.json
def create
@todo = Todo.new(todo_params)
respond_to do |format|
if @todo.save
format.html { redirect_to @todo, notice: 'Todo was successfully created.' }
format.json { render :show, status: :created, location: @todo }
else
format.html { render :new }
format.json { render json: @todo.errors, status: :unprocessable_entity }
end
end
end
# PATCH/PUT /todos/1
# PATCH/PUT /todos/1.json
def update
respond_to do |format|
if @todo.update(todo_params)
format.html { redirect_to @todo, notice: 'Todo was successfully updated.' }
format.json { render :show, status: :ok, location: @todo }
else
format.html { render :edit }
format.json { render json: @todo.errors, status: :unprocessable_entity }
end
end
end
# DELETE /todos/1
# DELETE /todos/1.json
def destroy
@todo.destroy
respond_to do |format|
format.html { redirect_to todos_url, notice: 'Todo was successfully destroyed.' }
format.json { head :no_content }
end
end
private
# Use callbacks to share common setup or constraints between actions.
def set_todo
@todo = Todo.find(params[:id])
end
# Never trust parameters from the scary internet, only allow the white list through.
def todo_params
params.require(:todo).permit(:text, :isCompleted, :project_id)
end
end
todoshnik_controller.rb
class TodoshnikController < ApplicationController
def index
@title = 'Задачи'
@projects = Project.all
@todos = Todo.all
@todo = Todo.new
@project_array = @projects.map { |project| [project.title, project.id] }
end
def create
end
def update
end
end
rout.rb
Rails.application.routes.draw do
root 'todoshnik#index'
resources :todos
resources :projects
end
Gemfile
source 'https://rubygems.org'
git_source(:github) { |repo| "https://github.com/#{repo}.git" }
ruby '2.6.5'
# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails', '~> 6.0.0'
# Use postgresql as the database for Active Record
gem 'pg', '>= 0.18', '< 2.0'
# Use Puma as the app server
gem 'puma', '~> 3.11'
# Use SCSS for stylesheets
gem 'sass-rails', '~> 5'
# Transpile app-like JavaScript. Read more: https://github.com/rails/webpacker
gem 'webpacker', '~> 4.0'
# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
gem 'jbuilder', '~> 2.7'
# Use Redis adapter to run Action Cable in production
# gem 'redis', '~> 4.0'
# Use Active Model has_secure_password
# gem 'bcrypt', '~> 3.1.7'
# Use Active Storage variant
# gem 'image_processing', '~> 1.2'
# Reduces boot times through caching; required in config/boot.rb
gem 'bootsnap', '>= 1.4.2', require: false
group :development, :test do
# Call 'byebug' anywhere in the code to stop execution and get a debugger console
gem 'byebug', platforms: [:mri, :mingw, :x64_mingw]
end
group :development do
# Access an interactive console on exception pages or by calling 'console' anywhere in the code.
gem 'web-console', '>= 3.3.0'
end
group :test do
# Adds support for Capybara system testing and selenium driver
gem 'capybara', '>= 2.15'
gem 'selenium-webdriver'
# Easy installation and use of web drivers to run system tests with browsers
gem 'webdrivers'
end
# Windows does not include zoneinfo files, so bundle the tzinfo-data gem
gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]