[BUGS-0.2.0] File encodable bug

[blythed]

cp -r test test_copy

import uuid
db = superduper('mongomock://test', artifact_store='filesystem://./artifacts')
dt = DataType('my-file', encodable='file')
db.apply(dt)
my_id = str(uuid.uuid4())
db.execute(my_collection.insert_one(Document({'id': my_id, 'x': dt('./test_copy')})))

Trying this code gives:

>>> db.execute(my_collection.find_one({'id': my_id})).unpack(db)
{'id': '2b14133a-f275-461e-b0a2-d6f0eadb8b9b',
 'x': './artifacts/4dc048d4dbf67bed983a1b7a82822347645cc240',
 '_fold': 'train',
 '_id': ObjectId('661b9c229a2e44f23aa16422')}

However the data is missing:

$ ls ./artifacts/4dc048d4dbf67bed983a1b7a82822347645cc240
ls: ./artifacts/fc4a398bf717b6adf2dd5a07376a107c43bb0de0: No such file or directory

[jieguangzhou]

When the file type is inserted as data, the saving logic is skipped. I will fix it

    def insert(
        self, insert: Insert, refresh: bool = True, datatypes: t.Sequence[DataType] = ()
    ) -> InsertResult:
        """
        Insert data.

        :param insert: insert query object
        """
        for e in datatypes:
            self.add(e)

        # TODO add this logic to a base Insert class
        artifacts = []
        for r in insert.documents:
            r['_fold'] = 'train'
            if random.random() < s.CFG.fold_probability:
                r['_fold'] = 'valid'
            artifacts.extend(list(r.get_leaves('artifact').values()))

        for a in artifacts:
            if a.x is not None and a.file_id is None:
                a.save(self.artifact_store)

        inserted_ids = insert.execute(self)