Added group_categories creation page in admin panel

• Added:
- group_categories creation page in admin panel

app/controllers/settings/group_categories_controller.rb

@@ -0,0 +1,43 @@
+class Settings::GroupCategoriesController < Admin::BaseController	
+	before_action :set_category, except: [:index, :new, :create]
+
+	def index
+		@categories = GroupCategories.all
+	end
+
+	def new
+		@category = GroupCategories.new
+	end
+
+	def create
+		@category = GroupCategories.new(resource_params)
+		
+		if @category.save
+			log_action :create, @category
+			redirect_to settings_group_categories_path, notice: I18n.t('promotions.created_msg')
+		else
+			render :new
+		end
+	end
+
+	def destroy
+		# : todo :
+		# don't destroy if any groups have this category
+
+		@category.destroy!
+		log_action :destroy, @category
+		flash[:notice] = I18n.t('promotions.destroyed_msg')
+		redirect_to settings_group_categories_path
+	end
+
+	private
+
+	def set_category
+		@category = GroupCategories.find(params[:id])
+	end
+
+	def resource_params
+		params.permit(:text)
+	end
+
+end