Tasks display

app/controllers/tasks_controller.rb

@@ -0,0 +1,24 @@
+# frozen_string_literal: true
+
+class TasksController < ApplicationController
+  before_action :fetch_task, only: %w[show edit update delete]
+
+  def index
+    if params[:project]
+      @project = Project.find_by!(code: params[:project])
+      @tasks = @project.tasks
+    else
+      @tasks = Task.all
+    end
+
+    @tasks = @tasks.includes(:project)
+  end
+
+  def show; end
+
+  private
+
+  def fetch_task
+    @task = Task.find_by_full_number_or_id!(params[:id])
+  end
+end