Files
TJWaterServer/api/s4_tanks.py
2022-09-17 09:45:31 +08:00

149 lines
4.9 KiB
Python

from psycopg.rows import Row
from .connection import g_conn_dict as conn
from .s0_base import *
from .operation import *
from .change_set import ChangeSet
from .s24_coordinates import *
import utility
OVERFLOW_YES = 'YES'
OVERFLOW_NO = 'NO'
def add_tank(name: str, id: str, x: float, y: float, elevation: float, init_level: float = 0, min_level: float = 0, max_level: float = 0, diameter: float = 0, min_vol: float = 0) -> ChangeSet:
sql = f"insert into tanks (id, elevation, init_level, min_level, max_level, diameter, min_vol) values ('{id}', {elevation}, {init_level}, {min_level}, {max_level}, {diameter}, {min_vol});"
undo_sql = f'delete from tanks where id = "{id}";'
return add_node(name, TANK, id, x, y, sql, undo_sql)
def _get_tank(name: str, id: str) -> Row | None:
return utility.query(name, f"select elevation, init_level, min_level, max_level, diameter, min_vol, vol_curve, overflow from tanks where id = '{id}'")
def delete_tank(name: str, id: str) -> ChangeSet:
if not is_tank(name, id):
return
row = _get_tank(name, id)
if row == None:
return
elevation = row['elevation']
init_level = row['init_level']
min_level = row['min_level']
max_level = row['max_level']
diameter = row['diameter']
min_vol = row['min_vol']
vol_curve = 'NULL' if row['vol_curve'] == None else row['vol_curve']
vol_curve = f'"{vol_curve}"' if vol_curve != 'NULL' else vol_curve
overflow = 'NULL' if row['overflow'] == None else row['overflow']
sql += f"delete from tanks where id = '{id}';"
undo_sql = f'insert into tanks (id, elevation, init_level, min_level, max_level, diameter, min_vol, vol_curve, overflow) values ("{id}", {elevation}, {init_level}, {min_level}, {max_level}, {diameter}, {min_vol}, {vol_curve}, {overflow});'
return add_node(name, TANK, id, x, y, sql, undo_sql)
def get_tank_elevation(name: str, id: str) -> float | None:
row = _get_tank(name, id)
return float(row['elevation']) if row != None else None
def get_tank_init_level(name: str, id: str) -> float | None:
row = _get_tank(name, id)
return float(row['init_level']) if row != None else None
def get_tank_min_level(name: str, id: str) -> float | None:
row = _get_tank(name, id)
return float(row['min_level']) if row != None else None
def get_tank_max_level(name: str, id: str) -> float | None:
row = _get_tank(name, id)
return float(row['max_level']) if row != None else None
def get_tank_diameter(name: str, id: str) -> float | None:
row = _get_tank(name, id)
return float(row['diameter']) if row != None else None
def get_tank_min_vol(name: str, id: str) -> float | None:
row = _get_tank(name, id)
return float(row['min_vol']) if row != None else None
def get_tank_vol_curve(name: str, id: str) -> str | None:
row = _get_tank(name, id)
if row != None:
return row['vol_curve'] if row['vol_curve'] != None else 'NULL'
else:
return None
def get_tank_overflow(name: str, id: str) -> str | None:
row = _get_tank(name, id)
if row != None:
return row['overflow'] if row['overflow'] != None else 'NULL'
else:
return None
def get_tank_coord(name: str, id: str) -> dict[str, float] | None:
return get_node_coord(name, id)
def _set_tank(name: str, id: str, key: str, key_type: str, value: str, optional: bool = False) -> ChangeSet:
if not is_tank(name, id):
return
row = _get_tank(name, id)
if row == None:
return
return utility.update(name, TANK, 'tanks', 'id', id, key, key_type, row[key], value, optional)
def set_tank_elevation(name: str, id: str, elevation: float) -> ChangeSet:
return _set_tank(name, id, 'elevation', 'float', elevation)
def set_tank_init_level(name: str, id: str, init_level: float) -> ChangeSet:
return _set_tank(name, id, 'init_level', 'float', init_level)
def set_tank_min_level(name: str, id: str, min_level: float) -> ChangeSet:
return _set_tank(name, id, 'min_level', 'float', min_level)
def set_tank_max_level(name: str, id: str, max_level: float) -> ChangeSet:
return _set_tank(name, id, 'max_level', 'float', max_level)
def set_tank_diameter(name: str, id: str, diameter: float) -> ChangeSet:
return _set_tank(name, id, 'diameter', 'float', diameter)
def set_tank_min_vol(name: str, id: str, min_vol: float) -> ChangeSet:
return _set_tank(name, id, 'min_vol', 'float', min_vol)
def set_tank_vol_curve(name: str, id: str, vol_curve: str) -> ChangeSet:
if not is_curve(name, vol_curve):
return ChangeSet
return _set_tank(name, id, 'vol_curve', 'str', vol_curve, True)
def set_tank_overflow(name: str, id: str, overflow: str) -> ChangeSet:
if overflow is not OVERFLOW_YES or overflow is not OVERFLOW_NO:
return ChangeSet()
return _set_tank(name, id, 'overflow', 'str', overflow)
def set_tank_coord(name: str, id: str, x: float, y: float) -> ChangeSet:
return set_node_coord(name, id, x, y)