MongoGridFSGetFile (Function)

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Constants for managing MongoDB databases

MongoAdd

MongoAggregationPipeline

MongoCreate

MongoCreateCollection

MongoDB functions

MongoDB/GRIDFS databases

MongoDeleteAll

MongoDeleteCollection

MongoGridFSDeleteFile

MongoGridFSDeleteFileById

MongoGridFSGetFile

MongoGridFSGetFileById

MongoGridFSGetFileInfo

mongoCollectionOption

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MongoGridFSGetFile (Function)

In french: MongoGridFSRécupèreFichier

Retrieves (on the local computer) a file identified by its name and found in a MongoDB file system.

Remark: To retrieve a file using its identifier, use MongoGridFSGetFileById.

Versions 24 and later

This function is now available for WINDEV applications in Linux.

This function is now available for WEBDEV sites in Linux.

New in version 24

This function is now available for WINDEV applications in Linux.

This function is now available for WEBDEV sites in Linux.

This function is now available for WINDEV applications in Linux.

This function is now available for WEBDEV sites in Linux.

Example

MongoGridFSGetFile(cnx.BaseDeDonnées["CRM"], "produit.png", ...
fDataDir() + ["\"] + "produit.png")

sRep is string = fSelectDir(SysDir(srDownloads), ...
"Sélectionnez le répertoire de téléchargement")
IF sRep<>"" THEN
MongoGridFSGetFile(gclGridFS, TABLE_GridFS.COL_Nom, ...
CompleteDir(sRep) + TABLE_GridFS.COL_Nom)
ToastDisplay("Récupération terminée avec succès.")
END

Syntax

<Result> = MongoGridFSGetFile(<File system> , <Name of file to retrieve> , <Name of local file>)

<Result>: Boolean

True if the operation was performed,
False if a problem occurred. ErrorInfo is used to identify the error.

<File system>: mongoGridFS or mongoDatabase variable

File system of MongoDB database to use. Corresponds to:
to the Variable name of type mongoGridFS corresponding to the Mongo file system.
the name of the mongoDatabase variable corresponding to the MongoDB database. In this case, the file system is using the "fs" prefix.

<Name of file to retrieve>: Character string with quotes

Name of file found in the MongoDB file system that will be retrieved on the local computer.

<Name of local file>: Character string with quotes

Path and name of file retrieved on the local computer.

Related Examples:

Unit examples (WINDEV): Native access to MongoDB

[ + ] This example shows how to use the main functions of native access to MongoDB databases: adding data, reading (searching), modifying and deleting data in the database. The example also shows functions for saving files in the MongoDB GridFS data system.

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