Add phases step to budget creation

app/controllers/concerns/admin/budget_phases_actions.rb

@@ -0,0 +1,36 @@
+module Admin::BudgetPhasesActions
+  extend ActiveSupport::Concern
+
+  included do
+    include Translatable
+
+    before_action :load_budget
+    before_action :load_phase, only: [:edit, :update]
+  end
+
+  def edit
+  end
+
+  def update
+    if @phase.update(budget_phase_params)
+      redirect_to phases_index, notice: t("flash.actions.save_changes.notice")
+    else
+      render :edit
+    end
+  end
+
+  private
+
+    def load_budget
+      @budget = Budget.find_by_slug_or_id!(params[:budget_id])
+    end
+
+    def load_phase
+      @phase = @budget.phases.find(params[:id])
+    end
+
+    def budget_phase_params
+      valid_attributes = [:starts_at, :ends_at, :enabled]
+      params.require(:budget_phase).permit(*valid_attributes, translation_params(Budget::Phase))
+    end
+end