1. In a case, where we are considering m2m, and it’s required to add a new entity record in the m2m table, an obvious case comes, where we create and save the entity first and then we add that entity in the m2m table. For example, when we add a new book to an exiting author’s book list, we first create a “Book” object and save it, and then we add this book to the author book list thru a static method. However, in that case, we might have to consider database server side or...