pundit: convert pools to pundit.

app/policies/pool_policy.rb

@@ -0,0 +1,25 @@
+class PoolPolicy < ApplicationPolicy
+  def gallery?
+    index?
+  end
+
+  def update?
+    unbanned? && (!record.is_deleted? || user.is_builder?)
+  end
+
+  def destroy?
+    !record.is_deleted? && user.is_builder?
+  end
+
+  def undelete?
+    record.is_deleted? && user.is_builder?
+  end
+
+  def revert?
+    update?
+  end
+
+  def permitted_attributes
+    [:name, :description, :category, :post_ids, :post_ids_string, post_ids: []]
+  end
+end