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| Mongoose::Engine(3) | User Contributed Perl Documentation | Mongoose::Engine(3) |
NAME
Mongoose::Engine - serialization for MongoDB driverDESCRIPTION
The Mongoose standard engine. Does all the dirty work. Very monolithic. Replace it with your engine if you want.METHODS
find_one
Just like "find_one" in MongoDB::Collection, but blesses the hash document into your class package.Also has a handy mode which allows retrieving an "_id" directly from a BSON:OID or just a string:
my $author = Author->find_one( '4dd77f4ebf4342d711000000' );
Which expands onto:
my $author = Author->find_one({
_id => BSON::OID->new( value => pack( 'H*', '4dd77f4ebf4342d711000000' ) )
});
find
Just like "find" in MongoDB::Collection, but returns a Mongoose::Cursor of documents blessed into your package.query
Just like "query" in MongoDB::Collection, but returns a Mongoose::Cursor of documents blessed into your package.count
Helper and back-compat method to call estimated_document_count() or count_documents() depending on arguments passed.estimated_document_count
Just like "estimated_document_count" in MongoDB::Collection.count_documents
Just like "count_documents" in MongoDB::Collection.delete
Deletes the document in the database.collapse
Turns an object into a hash document.expand
Turns a hash document back into an object.expanded
This is an empty method called by expand() after a document was turned into an object. This was added in version 2 to allow old classes to handle dates on nested types that previously were DateTime objects and now are BSON::Time, but it can be used/abused to any kind of fix to the expanded object.It's recommended to use with care and alway using method modifiers (after) to allow subclassing and composition.
collection
Returns the MongoDB::Collection object for this class or object.save
Commits the object to the database.db
Returns the object's corresponding MongoDB::Database instance.fix_integrity
Checks all Mongoose::Join fields for invalid references to foreign object ids.| 2018-10-08 | perl v5.32.1 |
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