76 lines
2.1 KiB
Python
76 lines
2.1 KiB
Python
from psycopg.rows import dict_row, Row
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from .connection import g_conn_dict as conn
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_NODE = "_node"
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_LINK = "_link"
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_CURVE = "_curve"
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_PATTERN = "_pattern"
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JUNCTION = "junction"
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RESERVOIR = "reservoir"
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TANK = "tank"
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PIPE = "pipe"
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PUMP = "pump"
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VALVE = "valve"
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def _get_from(name: str, id: str, base_type: str) -> Row | None:
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with conn[name].cursor(row_factory=dict_row) as cur:
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cur.execute(f"select * from {base_type} where id = '{id}'")
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return cur.fetchone()
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def is_node(name: str, id: str) -> bool:
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return _get_from(name, id, _NODE) != None
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def is_junction(name: str, id: str) -> bool:
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row = _get_from(name, id, _NODE)
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return row != None and row['type'] == JUNCTION
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def is_reservoir(name: str, id: str) -> bool:
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row = _get_from(name, id, _NODE)
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return row != None and row['type'] == RESERVOIR
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def is_tank(name: str, id: str) -> bool:
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row = _get_from(name, id, _NODE)
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return row != None and row['type'] == TANK
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def is_link(name: str, id: str) -> bool:
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return _get_from(name, id, _LINK) != {}
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def is_pipe(name: str, id: str) -> bool:
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row = _get_from(name, id, _LINK)
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return row != None and row['type'] == PIPE
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def is_pump(name: str, id: str) -> bool:
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row = _get_from(name, id, _LINK)
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return row != None and row['type'] == PUMP
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def is_valve(name: str, id: str) -> bool:
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row = _get_from(name, id, _LINK)
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return row != None and row['type'] == VALVE
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def is_curve(name: str, id: str) -> bool:
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return _get_from(name, id, _CURVE) != None
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def is_pattern(name: str, id: str) -> bool:
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return _get_from(name, id, _PATTERN) != None
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def _get_all(name: str, base_type: str) -> list[str]:
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ids : list[str] = []
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with conn[name].cursor(row_factory=dict_row) as cur:
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cur.execute(f"select id from {base_type} order by id")
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for record in cur:
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ids.append(record['id'])
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return ids
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def get_nodes(name: str) -> list[str]:
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return _get_all(name, _NODE)
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def get_links(name: str) -> list[str]:
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return _get_all(name, _LINK)
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def get_curves(name: str) -> list[str]:
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return _get_all(name, _CURVE)
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def get_patterns(name: str) -> list[str]:
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return _get_all(name, _PATTERN)
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