jiang
fa188af0b1
Reorganize WNDB by responsibility and remove legacy scheme endpoints.\n\nRoute analysis and time-series access through project pools, preserve transactional realtime replacement, and refresh GIS materialized views after writes.\n\nAdd database architecture documentation, live pooling coverage, API contract updates, and executable container verification.\n\nBREAKING CHANGE: legacy scheme APIs and flat app.native.wndb module imports are removed.
57 lines
1.9 KiB
Python
57 lines
1.9 KiB
Python
from typing import Any
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from psycopg import AsyncConnection
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def _optional_text(value: Any) -> str | None:
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return str(value).strip() if value is not None else None
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def _optional_float(value: Any) -> float | None:
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return float(value) if value is not None else None
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def _optional_int(value: Any) -> int | None:
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return int(value) if value is not None else None
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class ScadaInfoRepository:
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"""Read SCADA metadata from the current project's business database."""
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@staticmethod
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async def get_scadas(conn: AsyncConnection) -> list[dict[str, Any]]:
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async with conn.cursor() as cur:
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await cur.execute(
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"""
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SELECT id AS device_id,
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device_type,
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node_id,
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link_id,
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api_query_id,
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transmission_mode,
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transmission_frequency,
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reliability,
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x,
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y
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FROM gis.scada_devices
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ORDER BY id
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"""
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)
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records = await cur.fetchall()
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return [
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{
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"device_id": str(record["device_id"]).strip(),
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"device_type": str(record["device_type"]).strip().lower(),
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"node_id": _optional_text(record["node_id"]),
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"link_id": _optional_text(record["link_id"]),
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"api_query_id": _optional_text(record["api_query_id"]),
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"transmission_mode": record["transmission_mode"],
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"transmission_frequency": record["transmission_frequency"],
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"reliability": _optional_int(record["reliability"]),
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"x": _optional_float(record["x"]),
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"y": _optional_float(record["y"]),
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}
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for record in records
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]
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