Re: [MongoMapper] Hashes, uneven behavior

[Jamie Orchard-Hays]

Mongodb's BSON does not have Symboles like Ruby or Clojure (called "Keywords"). So, Symbols are changed to Strings for storage in Mongo.

In other words, Ruby has the Symbol type, but BSON does not, so it uses the closest thing for storage, which is a String.

If you want to change them back to Symbols, then in your model class, you might have a from_mongo() method for that attribute.

Jamie

On May 22, 2013, at 5:43 PM, Heberto del Rio wrote:

Why is it that when in MongoMapper a key of type Hash is used the keys of that hash are saved as strings, even if symbols are used? How can this behavior be changed?

In the same way if a key has a type Array and hashes are used as the elements of this array the keys of the used hashes are saved as string, even if symbols are used?

To summarize, if hashes are used the keys are saved as strings, even if symbols are being used. Well not always the keys of a Documents are saved as strings but recovered as symbols. Mmmh very uneven behavior

Heberto del Rio

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