hyperboria/nexus/actions/update_document_sharience.py

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from typing import (
Optional,
Set,
)
import aiopg
from library.aiopostgres.pool_holder import AioPostgresPoolHolder
from nexus.models.proto.operation_pb2 import \
DocumentOperation as DocumentOperationPb
from nexus.models.proto.sharience_pb2 import Sharience as ShariencePb
from pypika import (
PostgreSQLQuery,
Table,
)
from pypika.terms import Array
from .base import BaseAction
class SendDocumentOperationUpdateDocumentShariencePbToGoldenPostgresAction(BaseAction):
sharience_table = Table('sharience')
db_multi_fields = {
'ipfs_multihashes',
}
db_single_fields = {
'id',
'parent_id',
'uploader_id',
'filesize',
'md5',
'telegram_file_id',
'updated_at',
}
db_fields = db_single_fields | db_multi_fields
def __init__(self, database):
super().__init__()
self.pool_holder = AioPostgresPoolHolder(
fn=aiopg.create_pool,
dsn=f'dbname={database["database"]} '
f'user={database["username"]} '
f'password={database["password"]} '
f'host={database["host"]}',
timeout=30,
pool_recycle=60,
maxsize=4,
)
self.waits.append(self.pool_holder)
def cast_field_value(self, field_name: str, field_value):
if field_name in self.db_multi_fields:
field_value = Array(*field_value)
return field_name, field_value
def is_field_set(self, sharience_pb: ShariencePb, field_name: str):
field_value = getattr(sharience_pb, field_name)
return field_value
def generate_insert_sql(self, sharience_pb: ShariencePb, fields: Optional[Set[str]] = None):
columns = []
inserts = []
fields = fields or self.db_fields
for field_name in fields:
if self.is_field_set(sharience_pb, field_name):
field_value = getattr(sharience_pb, field_name)
field_name, field_value = self.cast_field_value(field_name, field_value)
columns.append(field_name)
inserts.append(field_value)
query = PostgreSQLQuery.into(self.sharience_table).columns(*columns).insert(*inserts)
return query.returning(self.sharience_table.id).get_sql()
async def do(self, document_operation_pb: DocumentOperationPb) -> DocumentOperationPb:
update_document_pb = document_operation_pb.update_document
sharience_pb = update_document_pb.typed_document.sharience
fields = update_document_pb.fields or self.db_fields
sql = self.generate_insert_sql(
sharience_pb=sharience_pb,
fields=fields,
)
result = await self.pool_holder.execute(sql, fetch=True)
sharience_pb.id = result[0][0]
return document_operation_pb