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Editorial Team
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Asked: 2026-05-19T09:13:10+00:00

I recently had to update one of my model’s properties from type StringProperty to

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I recently had to update one of my model’s properties from type StringProperty to TextProperty in order to overcome the restrictive limit (a maximum of 500 characters). That wasn’t a problem till I realized some of my old queries like:

SomeEntity.gql(‘WHERE property1 != :1’,None)

where property1 is a property in the model couldn’t work :-(.

The query previously worked, and it did help me to only fetch those entities that had a value set for property1.

How can I efficiently obtain the same results in this scenario where the type is TextProperty?

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1 Answer

  1. Editorial Team

    You cannot filter or order on a TextProperty. To achieve what you want to do, add a new BooleanProperty ‘has_text’ and filter on that. Then you just have to be sure to set the BooleanProperty whenever you change the TextProperty.

    This solution follows Google App Engine’s general convention of pre-computing everything that you want to filter on.

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