A simple library that provides functions for persisting Incanter data structures using MongoDB.
Use incanter.mongodb in combination with the somnium.congomongo library. For usage examples, see the Congomongo README at http://github.com/somnium/congomongo, and the examples/blog/mongodb_datasets.clj file in the Incanter distribution.
Here are Somnium's descriptions of Congomongo's functions:
(mongo! & args) : Creates a Mongo object and sets the default database. Keyword arguments include: :host -> defaults to localhost :port -> defaults to 27017 :db -> defaults to nil (you'll have to set it anyway, might as well do it now.)
(get-coll coll) : Returns a DBCollection object
(fetch coll & options) : Fetches objects from a collection. Optional arguments include :where -> takes a query map :only -> takes an array of keys to retrieve :as -> what to return, defaults to :clojure, can also be :json or :mongo :from -> argument type, same options as above :one? -> defaults to false, use fetch-one as a shortcut :count? -> defaults to false, use fetch-count as a shortcut
(fetch-one coll & options) : same as (fetch collection :one? true)
(fetch-count coll & options) : same as (fetch collection :count? true)
(insert! coll obj & options) : Inserts a map into collection. Will not overwrite existing maps. Takes optional from and to keyword arguments. To insert as a side-effect only specify :to as nil.
(mass-insert! coll objs & options) : Inserts a sequence of maps.
(update! coll old new & options) : Alters/inserts a map in a collection. Overwrites existing objects. The shortcut forms need a map with valid :_id and :_ns fields or a collection and a map with a valid :_id field.
(destroy! coll query-map) : Removes map from collection. Takes a collection name and a query map
(add-index! coll fields & options) : Adds an index on the collection for the specified fields if it does not exist. Options include: :unique -> defaults to false :force -> defaults to true
(drop-index! coll fields) : Drops an index on the collection for the specified fields
(drop-all-indexes! coll) : Drops all indexes from a collection
(get-indexes coll & options) : Get index information on collection
(drop-database title) : drops a database from the mongo server
(set-database title) : atomically alters the current database
(databases) : List databases on the mongo server
(collections) : Returns the set of collections stored in the current database
(drop-collection coll) : Permanently deletes a collection. Use with care.
A simple library that provides functions for persisting Incanter data structures using MongoDB. Use incanter.mongodb in combination with the somnium.congomongo library. For usage examples, see the Congomongo README at http://github.com/somnium/congomongo, and the examples/blog/mongodb_datasets.clj file in the Incanter distribution. Here are Somnium's descriptions of Congomongo's functions: (mongo! & args) : Creates a Mongo object and sets the default database. Keyword arguments include: :host -> defaults to localhost :port -> defaults to 27017 :db -> defaults to nil (you'll have to set it anyway, might as well do it now.) (get-coll coll) : Returns a DBCollection object (fetch coll & options) : Fetches objects from a collection. Optional arguments include :where -> takes a query map :only -> takes an array of keys to retrieve :as -> what to return, defaults to :clojure, can also be :json or :mongo :from -> argument type, same options as above :one? -> defaults to false, use fetch-one as a shortcut :count? -> defaults to false, use fetch-count as a shortcut (fetch-one coll & options) : same as (fetch collection :one? true) (fetch-count coll & options) : same as (fetch collection :count? true) (insert! coll obj & options) : Inserts a map into collection. Will not overwrite existing maps. Takes optional from and to keyword arguments. To insert as a side-effect only specify :to as nil. (mass-insert! coll objs & options) : Inserts a sequence of maps. (update! coll old new & options) : Alters/inserts a map in a collection. Overwrites existing objects. The shortcut forms need a map with valid :_id and :_ns fields or a collection and a map with a valid :_id field. (destroy! coll query-map) : Removes map from collection. Takes a collection name and a query map (add-index! coll fields & options) : Adds an index on the collection for the specified fields if it does not exist. Options include: :unique -> defaults to false :force -> defaults to true (drop-index! coll fields) : Drops an index on the collection for the specified fields (drop-all-indexes! coll) : Drops all indexes from a collection (get-indexes coll & options) : Get index information on collection (drop-database title) : drops a database from the mongo server (set-database title) : atomically alters the current database (databases) : List databases on the mongo server (collections) : Returns the set of collections stored in the current database (drop-collection coll) : Permanently deletes a collection. Use with care.
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