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