Parent Child Relation

parent_child.js

// Link to the Child via a Child List (Parent Has the Children) aka Looking Down
parentChildData={(currentRow, allRows) => allRows.find(entry => _.find(entry.childQuestions, childEntry => childEntry.childQuestion.childQuestionId === currentRow.id))}

// Link to the Child via a Parant List (Child Has the Parents) aka Looking Up
parentChildData={(currentRow, allRows) => currentRow.parentQuestions[0] !== undefined && _.find(allRows, rowEntry => rowEntry.id === currentRow.parentQuestions[0].childQuestion.parentQuestionId)}