Saturday, September 22, 2012

Many-to-Many Relationships

In the video below I show one way to setup a many-to-many relationship in the datastore: between Posts and Tags.

Posted by jmvidal at 8:00 AM
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2 comments:

  1. Daniel CongroveSeptember 28, 2012 at 4:28 PM

    For the reallyDelete(self) method at the end of the video, I believe after "post.tags.remove(self.name)" you need to also add the line "post.put()" to save the changes to the datastore.

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  2. jmvidalSeptember 28, 2012 at 4:51 PM

    Yes, you are correct. Nothing changes on the datastore until you do the .pu(), which is an Atomic action. Thanks!

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