DRIVERS-2807 Update GridFS spec to add delete_by_name and rename_by_name#1702
DRIVERS-2807 Update GridFS spec to add delete_by_name and rename_by_name#1702
delete_by_name and rename_by_name#1702Conversation
GromNaN
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renameByName and deleteByName
GromNaN
changed the title
renameByName and deleteByNamedelete_by_name and rename_by_name
GromNaN
changed the title
delete_by_name and rename_by_namedelete_by_name and rename_by_name
source/gridfs/gridfs-spec.md
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| **Implementation details:** | ||
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| Drivers MUST first find the `_id` field of all files collection documents with the given filename. Drivers MUST then | ||
| delete all chunks with `files_id` in the found ids that was just deleted. Drivers MUST then delete all files collection |
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Wouldn't we want to delete the files documents first and then the chunks? Doing the opposite increases the chance of reading a phantom corrupt file. This is the same reason we always upload the chunks before saving the files document.
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You are correct. Files should be deleted before chunks to ensure there is no partial files. But if the operation that deletes chunks fails, then there is orphan chunks.
Spec updated.
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source/gridfs/gridfs-spec.md
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| Drivers MUST first find the `_id` field of all files collection documents with the given filename. Drivers MUST then | ||
| delete all files collection documents with the found ids. Drivers MUST then delete all chunks with `files_id` in the | ||
| found ids that was just deleted. |
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ids that was just deleted. -> ids that were just deleted.
Or use client.bulk_write() to delete both in one command :). We can leave that as a future optimization.
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Or use client.bulk_write() to delete both in one command :). We can leave that as a future optimization.
This would require server version 8.0 with the new client bulk write API to perform operations on both collections.
ShaneHarvey
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delete_by_name and rename_by_namedelete_by_name and rename_by_name
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LGTM after the small grammar fix.
| To rename all revisions of a stored file with the specified filename, drivers SHOULD provide the method | ||
| `rename_by_name`: |
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One thing I did not think about is if there is already a newer file with the new filename, then it will stay the last revision for this filename.
We can't change the date of the renamed files, as that would change the order of the revisions.
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Correct that seems like expected behavior to me.
3 participants
Fix DRIVERS-2808 and DRIVERS-2807
Please complete the following before merging:
GridFS\Bucket::deleteByName(filename)andrenameByName(filename, newFilename)mongo-php-library#1504