Using MongoDb

[peddinti]

I have seen in the documentation about connecting to mongodb .. but there are no examples on how we can use the mongodb documents

[louismullie]

See the following sections from the manual.

To retrieve a document from MongoDB:

        # If a hash is provided, that hash will be used as
        # a selector to retrieve a document from the DB.
        # This can be done based on the ID of the document:
        d = document({id: 103757301323})

        # Or through any given feature of a certain document:
        d = document({'features.file' => 'somefile.txt'})

        # N.B. Currently, MongoDB is the only supported DB.
        # You need to configure the database adapter before
        # using this particular way of retrieving documents.

To retrieve a collection from MongoDB:

        # If a hash is passed to the builder, that hash
        # will be used as a selector to retrieve documents
        # from the DB, and a collection containing these 
        # documents will be loaded. An empty hash loads 
        # all documents in the DB:
        c = collection({})

        # You can also use any arbitrary feature that 
        # you have defined on the documents to create 
        # a collection on-the-fly:
        c = collection({'features.topic' => 'news'})

        # N.B. Currently, MongoDB is the only supported DB.
        # You need to configure the database adapter before
        # using this particular way of creating collections.

I hope this solves your problem. Let me know if you have any further questions.

[peddinti]

Thanks! i did read this in the documentation.

How do i make a collection from a single table?