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View Code? Open in Web Editor NEW:balloon: Pythonic way to use dbm.
Home Page: https://pydbm.hakancelik.dev
License: GNU General Public License v3.0
:balloon: Pythonic way to use dbm.
Home Page: https://pydbm.hakancelik.dev
License: GNU General Public License v3.0
date
Field value can be a date in the format
YYYY-MM-DD
.
datetime
Field value can be a date and time in the format
YYYY-MM-DD HH:MM:SS
.
class PyPIPackageModel(DbmModel):
username: str
class Config:
table_name = "usernames"
unique_together = ("username",)
class PyPIPackageModel(DbmModel):
user: str
class Config:
table_name = "usernames"
unique_together = ("user",)
migration = True
def set_database_header(self):
ann = get_obj_annotations(obj=self.model)
db_headers = bytes(str({key: DATABASE_HEADER_MAPPING[value] for key, value in ann.items()}), "utf-8")
with self as db:
database_header: bytes | None
if (database_header := db.get(DATABASE_HEADER_NAME, None)) is None or (database_header is not None and self.model._config.migration is True):
db[DATABASE_HEADER_NAME] = db_headers
else:
# TODO: migrations
assert database_header == db_headers, f"Database headers are not equal: '{database_header}' != '{db_headers}'" # type: ignore[str-bytes-safe] # noqa: E501
setattr(self, DATABASE_HEADER_NAME, ann)
Throw an exception when a non-existent field is entered on the model.
If there is no need to write a custom manager, I don't think it's necessary, yes, it's nice to reach by writing objects, yes it's a familiar usage, but is it really necessary?
GDBM
allows an application to have multiple databases open at the same time. When an application opens a GDBM
database, it is designated as a reader
or a writer
. A GDBM
database can be opened by at most one writer at a time. However, many readers may open the database simultaneously. Readers and writers can not open the GDBM
database at the same time.
Speaking about application we usually mean a separate process. However, it is entirely normal for a multi-thread program to operate as a GDBM
reader in one thread and writer in another, provided, of course, that the two threads don’t operate on the same database simultaneously.
just can change id creation behavior
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