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Better type annotations for simple_upsert_txn

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most of these params don't really need to be lists.
This commit is contained in:
Richard van der Hoff 2020-05-06 01:08:15 +01:00
parent b2dba06079
commit 0f6ebf393d
1 changed files with 43 additions and 30 deletions
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73
synapse/storage/database.py
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@ -49,6 +49,7 @@ from synapse.metrics.background_process_metrics import run_as_background_process
from synapse.storage.background_updates import BackgroundUpdater
from synapse.storage.engines import BaseDatabaseEngine, PostgresEngine, Sqlite3Engine
from synapse.storage.types import Connection, Cursor
from synapse.types import Collection
from synapse.util.stringutils import exception_to_unicode
logger = logging.getLogger(__name__)
@ -889,20 +890,24 @@ class Database(object):
txn.execute(sql, list(allvalues.values()))
def simple_upsert_many_txn(
self, txn, table, key_names, key_values, value_names, value_values
):
self,
txn: LoggingTransaction,
table: str,
key_names: Collection[str],
key_values: Collection[Iterable[Any]],
value_names: Collection[str],
value_values: Iterable[Iterable[str]],
) -> None:
"""
Upsert, many times.
Args:
table (str): The table to upsert into
key_names (list[str]): The key column names.
key_values (list[list]): A list of each row's key column values.
value_names (list[str]): The value column names. If empty, no
values will be used, even if value_values is provided.
value_values (list[list]): A list of each row's value column values.
Returns:
None
table: The table to upsert into
key_names: The key column names.
key_values: A list of each row's key column values.
value_names: The value column names
value_values: A list of each row's value column values.
Ignored if value_names is empty.
"""
if self.engine.can_native_upsert and table not in self._unsafe_to_upsert_tables:
return self.simple_upsert_many_txn_native_upsert(
@ -914,20 +919,24 @@ class Database(object):
)
def simple_upsert_many_txn_emulated(
self, txn, table, key_names, key_values, value_names, value_values
):
self,
txn: LoggingTransaction,
table: str,
key_names: Iterable[str],
key_values: Collection[Iterable[Any]],
value_names: Collection[str],
value_values: Iterable[Iterable[str]],
) -> None:
"""
Upsert, many times, but without native UPSERT support or batching.
Args:
table (str): The table to upsert into
key_names (list[str]): The key column names.
key_values (list[list]): A list of each row's key column values.
value_names (list[str]): The value column names. If empty, no
values will be used, even if value_values is provided.
value_values (list[list]): A list of each row's value column values.
Returns:
None
table: The table to upsert into
key_names: The key column names.
key_values: A list of each row's key column values.
value_names: The value column names
value_values: A list of each row's value column values.
Ignored if value_names is empty.
"""
# No value columns, therefore make a blank list so that the following
# zip() works correctly.
@ -941,20 +950,24 @@ class Database(object):
self.simple_upsert_txn_emulated(txn, table, _keys, _vals)
def simple_upsert_many_txn_native_upsert(
self, txn, table, key_names, key_values, value_names, value_values
):
self,
txn: LoggingTransaction,
table: str,
key_names: Collection[str],
key_values: Collection[Iterable[Any]],
value_names: Collection[str],
value_values: Iterable[Iterable[Any]],
) -> None:
"""
Upsert, many times, using batching where possible.
Args:
table (str): The table to upsert into
key_names (list[str]): The key column names.
key_values (list[list]): A list of each row's key column values.
value_names (list[str]): The value column names. If empty, no
values will be used, even if value_values is provided.
value_values (list[list]): A list of each row's value column values.
Returns:
None
table: The table to upsert into
key_names: The key column names.
key_values: A list of each row's key column values.
value_names: The value column names
value_values: A list of each row's value column values.
Ignored if value_names is empty.
"""
allnames = [] # type: List[str]
allnames.extend(key_names)