const mixinafMorphia::Datastore

afMorphia::Datastore

(Service) - Wraps a MongoDB Collection, converting Fantom entities to / from Mongo documents.

When injecting as a service, use the @Inject.type attribute to state which Entity type it is for:

@Inject { type=MyEntity# }
private const Datastore myEntityDatastore

You can also autobuild a Datastore instance by passing in the entity type as a ctor param:

registry.autobuild(Datastore#, [MyEntity#])

collection

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abstract Collection collection()

The underlying MongoDB collection this Datastore wraps.

delete

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abstract Void delete(Obj entity, Bool checked := true)

Deletes the given entity from the MongoDB. Throws MorphiaErr if checked and nothing was deleted.

@see afMongo::Collection.delete

deleteById

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abstract Void deleteById(Obj id, Bool checked := true)

Deletes entity with the given Id. Throws MorphiaErr if checked and nothing was deleted.

@see afMongo::Collection.delete

drop

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abstract This drop(Bool checked := true)

Drops the underlying MongoDB collection.

@see afMongo::Collection.drop

exists

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abstract Bool exists()

Returns true if the underlying MongoDB collection exists.

@see afMongo::Collection.exists

findAll

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abstract Obj[] findAll(Str:Obj? query := ([Str:Obj?])[:], Obj? sort := null, Int skip := 0, Int? limit := null)

Returns a list of entities that match the given query.

Note: This method requires you to be familiar with Mongo query notation. If not, use the Query builder instead.

If sort is a Str it should the name of an index to use as a hint.

If sort is a [Str:Obj?] map, it should be a sort document with field names as keys. Values may either be the standard Mongo 1 and -1 for ascending / descending or the strings ASC / DESC.

The sort map, should it contain more than 1 entry, must be ordered.

@see afMongo::Collection.findAll

findCount

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abstract Int findCount(Str:Obj? query)

Returns the number of documents that would be returned by the given query.

Note: This method requires you to be familiar with Mongo query notation. If not, use the Query builder instead.

@see afMongo::Collection.findCount

findOne

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abstract Obj? findOne(Str:Obj? query, Bool checked := true)

An (optomised) method to return one document from the given query.

Note: This method requires you to be familiar with Mongo query notation. If not, use the Query builder instead.

Throws MongoErr if no documents are found and checked is true, returns null otherwise. Always throws MongoErr if the query returns more than one document.

@see afMongo::Collection.findOne

fromMongoDoc