Add headings step to budget creation

Co-Authored-By: decabeza <alberto@decabeza.es>

app/controllers/concerns/admin/budget_headings_actions.rb

@@ -0,0 +1,66 @@
+module Admin::BudgetHeadingsActions
+  extend ActiveSupport::Concern
+
+  included do
+    include Translatable
+    include FeatureFlags
+    feature_flag :budgets
+
+    before_action :load_budget
+    before_action :load_group
+    before_action :load_headings, only: :index
+    before_action :load_heading, only: [:edit, :update, :destroy]
+  end
+
+  def edit
+  end
+
+  def create
+    @heading = @group.headings.new(budget_heading_params)
+    if @heading.save
+      redirect_to headings_index, notice: t("admin.budget_headings.create.notice")
+    else
+      render new_action
+    end
+  end
+
+  def update
+    if @heading.update(budget_heading_params)
+      redirect_to headings_index, notice: t("admin.budget_headings.update.notice")
+    else
+      render :edit
+    end
+  end
+
+  def destroy
+    if @heading.can_be_deleted?
+      @heading.destroy!
+      redirect_to headings_index, notice: t("admin.budget_headings.destroy.success_notice")
+    else
+      redirect_to headings_index, alert: t("admin.budget_headings.destroy.unable_notice")
+    end
+  end
+
+  private
+
+    def load_budget
+      @budget = Budget.find_by_slug_or_id! params[:budget_id]
+    end
+
+    def load_group
+      @group = @budget.groups.find_by_slug_or_id! params[:group_id]
+    end
+
+    def load_headings
+      @headings = @group.headings.order(:id)
+    end
+
+    def load_heading
+      @heading = @group.headings.find_by_slug_or_id! params[:id]
+    end
+
+    def budget_heading_params
+      valid_attributes = [:price, :population, :allow_custom_content, :latitude, :longitude, :max_ballot_lines]
+      params.require(:budget_heading).permit(*valid_attributes, translation_params(Budget::Heading))
+    end
+end