Add CRUD Milestone on Admin::BudgetInvestment. Rename Checkpoint to Milestone.

app/controllers/admin/budget_investment_milestones_controller.rb

@@ -0,0 +1,55 @@
+class Admin::BudgetInvestmentMilestonesController < Admin::BaseController
+
+  before_action :load_budget_investment, only: [:index, :new, :create, :edit, :update, :destroy]
+  before_action :load_budget_investment_milestone, only: [:edit, :update, :destroy]
+
+  def index
+  end
+
+  def new
+    @milestone = Budget::Investment::Milestone.new
+  end
+
+  def create
+    @milestone = Budget::Investment::Milestone.new(milestone_params)
+    @milestone.investment = @investment
+    if @milestone.save
+      redirect_to admin_budget_budget_investment_path(@investment.budget, @investment), notice: t('admin.milestones.create.notice')
+    else
+      render :new
+    end
+  end
+
+  def edit
+  end
+
+  def update
+    if @milestone.update(milestone_params)
+      redirect_to admin_budget_budget_investment_path(@investment.budget, @investment), notice: t('admin.milestones.update.notice')
+    else
+      render :edit
+    end
+  end
+
+  def destroy
+    @milestone.destroy
+    redirect_to admin_budget_budget_investment_path(@investment.budget, @investment), notice: t('admin.milestones.delete.notice')
+  end
+
+  private
+
+  def milestone_params
+    params.require(:budget_investment_milestone)
+          .permit(:title, :description, :budget_investment_id)
+  end
+
+  def load_budget_investment
+    @investment = Budget::Investment.find params[:budget_investment_id]
+  end
+
+  def load_budget_investment_milestone
+    @milestone =  Budget::Investment::Milestone.find params[:id]
+  end
+
+
+end