materialNote | Summernote wysiwyg editor converted for Materialize | Editor library

I'm working through my first knex transaction using the transacting method. The aim is for a set of three insert statements to atomically persist an incoming record's data into the three tables. For context - the incoming record represents a parent object with two 1:M child relations - "a material has 0 to many properties and a material has 0 to many notes." So I have a materials relation, a material_properties relation, and a material_notes relation.

I have a version of the method working which is not within a transaction. But when I tried to wrap the functionality within a transaction, as specified in the Knex documentation - 'Transaction' section - in the subsection "Same example as above using another await/async approach:", I am getting a reference error that the first child relation is not defined. Additionally, I am getting an

UnhandledPromiseRejectionWarning: ReferenceError: trx is not defined

Note: The parent table is inserted into first, and the reference error occurs when attempting to insert into the first child table: 'material_properties'.

Here's what worked: