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= New Features
* A uuid plugin has now been added. This plugin will automatically
create a uuid for newly created model objects.
Model.plugin :uuid
Model.create.uuid => # some UUID
* Model#json_serializer_opts has been added to the json_serializer
plugin, allowing you to override the JSON serialization options
on a per instance basis without passing the options directly
to Model#to_json. This is useful if you are including the model
instance inside another datastructure that will be serialized
to JSON.
obj.json_serializer_opts(:root => true)
[obj].to_json
# => '[{"obj":{"id":1,"name":"Foo"}}]'
= Other Improvements
* The Database#transaction :retry_on option now works when using
savepoints.
* Calling Database#table_exists? inside a transaction will now use
a savepoint if the database supports it, so that if the table
doesn't exist, it will not affect the state of the transaction.
* Blobs can now be used as bound variables in the oracle adapter.
* The sqlanywhere adapter now works with database sharding.
* The Dataset#full_text_search :rank option has been fixed to order
by rank descending instead of ascending.
* External adapters that do not support INSERT with DEFAULT VALUES
can now override Dataset#insert_empty_columns_values to set
the columns and values to use for an empty INSERT.
* External adapters can now implement Dataset#date_add_sql_append
to integrate with the date_arithmetic extension.
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