Project show and edit

app/controllers/projects_controller.rb

@@ -0,0 +1,30 @@
+class ProjectsController < ApplicationController
+  before_action :fetch_project!, only: %w[show edit update destroy]
+
+  def index
+    @projects = Project.all
+  end
+
+  def show
+  end
+
+  def edit
+  end
+
+  def update
+    if @project.update(params.expect(project: %i[code name description]))
+      redirect_to @project
+    else
+      render :edit, status: :unprocessable_entity
+    end
+  end
+
+  def destroy
+  end
+
+  private
+
+  def fetch_project!
+    @project = Project.find_by!(code: params[:id])
+  end
+end

app/helpers/projects_helper.rb

@@ -0,0 +1,2 @@
+module ProjectsHelper
+end

app/javascript/application.js

@@ -1,3 +1,6 @@
 // Configure your import map in config/importmap.rb. Read more: https://github.com/rails/importmap-rails
 import "@hotwired/turbo-rails"
 import "controllers"
+
+import "trix"
+import "@rails/actiontext"

app/models/project.rb

@@ -4,4 +4,9 @@ class Project < ApplicationRecord
   has_many :tasks
 
   has_rich_text :description
+
+  def to_param
+    return unless id
+    code
+  end
 end

app/views/projects/_form.html.slim

@@ -0,0 +1,13 @@
+= form_with model: @project do |form|
+  .field
+    = form.label :code
+    = form.text_field :code
+  .field
+    = form.label :name
+    = form.text_field :name
+  .field
+    = form.label :description
+    = form.rich_textarea :description
+  .submit
+    = form.submit 'Submit'
+

app/views/projects/edit.html.slim

@@ -0,0 +1,5 @@
+h1
+  span Editing project
+  span= @project.name
+
+= render 'form'

app/views/projects/index.html.slim

@@ -0,0 +1,3 @@
+ul
+  - @projects.each do |project|
+    li= link_to project.name, project

app/views/projects/show.html.slim

@@ -0,0 +1,7 @@
+h1= @project.name
+
+section= @project.description
+
+section
+  ul.links
+    li= link_to 'Edit', edit_project_path(@project)