Add admin interface for the links

plugins/links/app/controllers/admin/links_controller.rb

@@ -0,0 +1,49 @@
+class Admin::LinksController < Admin::BaseController
+  def index
+    @links = Link.ordered
+  end
+
+  def new
+    @link = Link.new
+    render action: :edit
+  end
+
+  def create
+    @link = Link.new(link_params)
+    if @link.save
+      index
+      render action: :update_links
+    else
+      render action: :edit
+    end
+  end
+
+  def edit
+    @link = Link.find(params[:id])
+  end
+
+  def update
+    @link = Link.find(params[:id])
+
+    if @link.update_attributes!(link_params)
+      index
+      render action: :update_links
+    else
+      render action: :edit
+    end
+  end
+
+  def destroy
+    link = Link.find(params[:id])
+    link.destroy!
+    redirect_to admin_links_path
+  rescue => error
+    redirect_to admin_links_path, I18n.t('errors.general_msg', msg: error.message)
+  end
+
+  private
+
+  def link_params
+    params.require(:link).permit(:name, :url, :workgroup_id, :indirect, :authorization)
+  end
+end