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Stored procedures
Retrieves (on the local computer) a file identified by its name and found in a MongoDB file system.
Note: To retrieve a file identified from its identifier, use MongoGridFSGetFileById.
Example
MongoGridFSGetFile(cnt..Database["CRM"], "product.png", ...
fDataDir() + ["\"] + "product.png")
sDir is string = fSelectDir(SysDir(srDownloads), ...
"Select the download directory")
IF sDir<>"" THEN
MongoGridFSGetFile(gclGridFS,TABLE_GridFS.COL_Name, ...
CompleteDir(sDir) + TABLE_GridFS.COL_Name)
ToastDisplay("Retrieval successfully performed.")
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:
  • the name of mongoGridFS variable corresponding to the Mongo file system.
  • the name of 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:
Native access to MongoDB 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.
Components
WINDEVWEBDEV - Server codeReports and Queries wd230big.dll
Minimum required version
  • Version 22
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