TLDR:테이블 상태 속성 업데이트 버튼

작업:버튼 추가로 작업 상태 변경

방법:

add_column :tasks, :status, :string, null: false, default: "planned"

  validates :status, presence: true
  STATUSES = [:planned, :progress, :done]

  def change_status
    @task = Task.find(params[:id])
    if params[:status].present? && Task::STATUSES.include?(params[:status].to_sym)
      @task.update(status: params[:status])
    end
    redirect_to @task, notice: "Status updated to #{@task.status}"
  end

  resources :tasks do
    member do
      patch :change_status
    end
  end

  <% Task::STATUSES.each do |status| %>
    <%= link_to change_status_task_path(@task, status: status), method: :patch do %>
      <%= status %>
    <% end %>
  <% end %>