Assessing sqlalchemy.exc.ArguementError(…)

  1. The model which is on the many side(don’t forget to capitalize the first character of this model)
  2. The backref argument expresses how this relationship will be referenced. For example, if we wanted to find out what category a particular product belongs to, we’d simply reference product.category. Note that the db.relationship(…) is not a column in the table it has been listed in but it’s just a way that sqlalchemy allows us to create and reference relationships.
  3. The lazy argument that implies how the query will be executed




Circa 2018

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Oyugo Obonyo

Oyugo Obonyo

Circa 2018

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