Mongoid Mapper

DataMapper-style persistence layer over Mongoid.

gem "mongoid_mapper", github: "wenoa/mongoid-mapper"

When the gem is required, Mongoid::Document is reopened to inject extra capabilities into any class that includes it:

• field removes the previously defined methods before redefining a field.
• persisted_method persists a method's result into a field via before_save.
• autosave_on saves the document after invoking a method.
• Forces Mongoid's initialize, for domain models with their own constructors.

In addition, TransactionAwareCollection makes MongoDB driver aggregations participate in the active transaction, so they see the changes pending commit.

A unique index violation (error code 11000) raises Mongo::Error::DuplicateKey instead of a generic Mongo::Error::OperationFailure, so callers can rescue a duplicate directly:

begin
  inventariable.save!
rescue Mongo::Error::DuplicateKey
  # ...
end

Tests

The suite expects a MongoDB replica set running on the default port:

docker run --rm -p 27017:27017 --hostname localhost mongodb/mongodb-atlas-local:8.0.4