Using GQL to check if BlobProperty is NULL
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Published on 2010-04-15T08:40:24Z
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2010/04/15
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google-app-engine
Hello,
I have a db.BlobProperty property (called "Icon") in my entity which contains an image binary. I want to run a GQL query to retrieve all entities with an image (i.e. their "Icon" property is not NULL).
Trying to use the following query:
"SELECT * FROM Names WHERE Icon!=NULL"
did not work... Trying to use .filter("Icon!=",None) did not work as well...
Any ideas?
Thanks!
Joel
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