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Developer Documentation
- Bug fixes for general core bugs in 4.0.x will end 8 May 2023 (12 months).
- Bug fixes for security issues in 4.0.x will end 13 November 2023 (18 months).
- PHP version: minimum PHP 7.3.0 Note: the minimum PHP version has increased since Moodle 3.10. PHP 7.4.x is also supported.
Differences Between: [Versions 310 and 400] [Versions 39 and 400] [Versions 400 and 401]
(no description)
| File Size: | 388 lines (11 kb) |
| Included or required: | 0 times |
| Referenced: | 0 times |
| Includes or requires: | 0 files |
Defines 1 class
CollectionWrapper:: (21 methods):
__construct()
deleteChunksByFilesId()
deleteFileAndChunksById()
dropCollections()
findChunksByFileId()
findFileByFilenameAndRevision()
findFileById()
findFiles()
findOneFile()
getBucketName()
getChunksCollection()
getDatabaseName()
getFilesCollection()
insertChunk()
insertFile()
updateFilenameForId()
ensureChunksIndex()
ensureFilesIndex()
ensureIndexes()
indexKeysMatch()
isFilesCollectionEmpty()
Class: CollectionWrapper - X-Ref
CollectionWrapper abstracts the GridFS files and chunks collections.| __construct(Manager $manager, $databaseName, $bucketName, array $collectionOptions = []) X-Ref |
| Constructs a GridFS collection wrapper. param: Manager $manager Manager instance from the driver param: string $databaseName Database name param: string $bucketName Bucket name param: array $collectionOptions Collection options |
| deleteChunksByFilesId($id) X-Ref |
| Deletes all GridFS chunks for a given file ID. param: mixed $id |
| deleteFileAndChunksById($id) X-Ref |
| Deletes a GridFS file and related chunks by ID. param: mixed $id |
| dropCollections() X-Ref |
| Drops the GridFS files and chunks collections. |
| findChunksByFileId($id, $fromChunk = 0) X-Ref |
| Finds GridFS chunk documents for a given file ID and optional offset. return: Cursor param: mixed $id File ID param: integer $fromChunk Starting chunk (inclusive) |
| findFileByFilenameAndRevision($filename, $revision) X-Ref |
| Finds a GridFS file document for a given filename and revision. Revision numbers are defined as follows: * 0 = the original stored file * 1 = the first revision * 2 = the second revision * etc… * -2 = the second most recent revision * -1 = the most recent revision return: stdClass|null param: string $filename param: integer $revision |
| findFileById($id) X-Ref |
| Finds a GridFS file document for a given ID. return: stdClass|null param: mixed $id |
| findFiles($filter, array $options = []) X-Ref |
| Finds documents from the GridFS bucket's files collection. return: Cursor param: array|object $filter Query by which to filter documents param: array $options Additional options |
| findOneFile($filter, array $options = []) X-Ref |
| Finds a single document from the GridFS bucket's files collection. return: array|object|null param: array|object $filter Query by which to filter documents param: array $options Additional options |
| getBucketName() X-Ref |
| Return the bucket name. return: string |
| getChunksCollection() X-Ref |
| Return the chunks collection. return: Collection |
| getDatabaseName() X-Ref |
| Return the database name. return: string |
| getFilesCollection() X-Ref |
| Return the files collection. return: Collection |
| insertChunk($chunk) X-Ref |
| Inserts a document into the chunks collection. param: array|object $chunk Chunk document |
| insertFile($file) X-Ref |
| Inserts a document into the files collection. The file document should be inserted after all chunks have been inserted. param: array|object $file File document |
| updateFilenameForId($id, $filename) X-Ref |
| Updates the filename field in the file document for a given ID. return: UpdateResult param: mixed $id param: string $filename |
| ensureChunksIndex() X-Ref |
| Create an index on the chunks collection if it does not already exist. |
| ensureFilesIndex() X-Ref |
| Create an index on the files collection if it does not already exist. |
| ensureIndexes() X-Ref |
| Ensure indexes on the files and chunks collections exist. This method is called once before the first write operation on a GridFS bucket. Indexes are only be created if the files collection is empty. |
| indexKeysMatch(array $expectedKeys, array $actualKeys) X-Ref |
| No description |
| isFilesCollectionEmpty() X-Ref |
| Returns whether the files collection is empty. return: boolean |
