228 lines
9.0 KiB
Python
228 lines
9.0 KiB
Python
from typing import Any
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from ..core.database import (
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ChangeSet,
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DatabaseCommand,
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execute_command,
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execute_locked_command,
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g_add_prefix,
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g_delete_prefix,
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g_update_prefix,
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read_all,
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sql_literal,
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try_read,
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)
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def get_pump_schema(name: str) -> dict[str, dict[str, Any]]:
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return { 'id' : {'type': 'str' , 'optional': False , 'readonly': True },
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'node1' : {'type': 'str' , 'optional': False , 'readonly': False},
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'node2' : {'type': 'str' , 'optional': False , 'readonly': False},
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'power' : {'type': 'float' , 'optional': True , 'readonly': False},
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'head' : {'type': 'str' , 'optional': True , 'readonly': False},
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'speed' : {'type': 'float' , 'optional': True , 'readonly': False},
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'pattern' : {'type': 'str' , 'optional': True , 'readonly': False} }
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def get_pump(name: str, id: str) -> dict[str, Any]:
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p = try_read(name, "select l.id, l.start_node_id as node1, l.end_node_id as node2, p.power, p.head_curve_id as head, p.speed, p.pattern_id as pattern from network.links l join network.pumps p on p.link_id = l.id where l.id = %s", (id,))
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if p == None:
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return {}
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d = {}
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d['id'] = str(p['id'])
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d['node1'] = str(p['node1'])
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d['node2'] = str(p['node2'])
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d['power'] = float(p['power']) if p['power'] != None else None
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d['head'] = str(p['head']) if p['head'] != None else None
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d['speed'] = float(p['speed']) if p['speed'] != None else None
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d['pattern'] = str(p['pattern']) if p['pattern'] != None else None
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return d
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# DingZQ, 2025-03-29
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def get_all_pumps(name: str) -> list[dict[str, Any]]:
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rows = read_all(
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name,
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"SELECT id, start_node_id AS node1, end_node_id AS node2, power, "
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"head_curve_id AS head, speed, pattern_id AS pattern "
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"FROM gis.pumps ORDER BY id",
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)
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if rows == None:
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return []
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result = []
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for row in rows:
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d = {}
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d['id'] = str(row['id'])
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d['node1'] = str(row['node1'])
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d['node2'] = str(row['node2'])
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d['power'] = float(row['power']) if row['power'] != None else None
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d['head'] = str(row['head']) if row['head'] != None else None
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d['speed'] = float(row['speed']) if row['speed'] != None else None
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d['pattern'] = str(row['pattern']) if row['pattern'] != None else None
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result.append(d)
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return result
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class Pump(object):
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def __init__(self, input: dict[str, Any]) -> None:
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self.type = 'pump'
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self.id = str(input['id'])
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self.node1 = str(input['node1'])
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self.node2 = str(input['node2'])
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self.power = float(input['power']) if 'power' in input and input['power'] != None else None
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self.head = str(input['head']) if 'head' in input and input['head'] != None else None
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self.speed = float(input['speed']) if 'speed' in input and input['speed'] != None else None
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self.pattern = str(input['pattern']) if 'pattern' in input and input['pattern'] != None else None
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self.f_type = sql_literal(self.type)
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self.f_id = sql_literal(self.id)
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self.f_node1 = sql_literal(self.node1)
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self.f_node2 = sql_literal(self.node2)
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self.f_power = sql_literal(self.power)
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self.f_head = sql_literal(self.head)
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self.f_speed = sql_literal(self.speed)
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self.f_pattern = sql_literal(self.pattern)
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def as_dict(self) -> dict[str, Any]:
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return { 'type': self.type, 'id': self.id, 'node1': self.node1, 'node2': self.node2, 'power': self.power, 'head': self.head, 'speed': self.speed, 'pattern': self.pattern }
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def _set_pump(
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name: str,
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cs: ChangeSet,
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current: dict[str, Any] | None = None,
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) -> DatabaseCommand:
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raw_new = current if current is not None else get_pump(name, cs.operations[0]['id'])
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new_dict = cs.operations[0]
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schema = get_pump_schema(name)
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for key, value in schema.items():
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if key in new_dict and not value['readonly']:
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raw_new[key] = new_dict[key]
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new = Pump(raw_new)
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statement = f"update network.links set start_node_id = {new.f_node1}, end_node_id = {new.f_node2} where id = {new.f_id};"
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statement += f"\nupdate network.pumps set power = {new.f_power}, head_curve_id = {new.f_head}, speed = {new.f_speed}, pattern_id = {new.f_pattern} where link_id = {new.f_id};"
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change = g_update_prefix | new.as_dict()
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return DatabaseCommand(statement, [change])
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def set_pump(name: str, cs: ChangeSet) -> ChangeSet:
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operation = cs.operations[0]
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if 'id' not in operation:
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return ChangeSet()
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def build_command() -> DatabaseCommand | None:
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current = get_pump(name, operation['id'])
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return None if current == {} else _set_pump(name, cs, current)
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return execute_locked_command(name, build_command)
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def _add_pump(name: str, cs: ChangeSet) -> DatabaseCommand:
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new = Pump(cs.operations[0])
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statement = f"insert into network.links (id, link_type, start_node_id, end_node_id) values ({new.f_id}, {new.f_type}, {new.f_node1}, {new.f_node2});"
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statement += f"\ninsert into network.pumps (link_id, power, head_curve_id, speed, pattern_id) values ({new.f_id}, {new.f_power}, {new.f_head}, {new.f_speed}, {new.f_pattern});"
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change = g_add_prefix | new.as_dict()
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return DatabaseCommand(statement, [change])
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def add_pump(name: str, cs: ChangeSet) -> ChangeSet:
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if 'id' not in cs.operations[0]:
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return ChangeSet()
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if get_pump(name, cs.operations[0]['id']) != {}:
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return ChangeSet()
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return execute_command(name, _add_pump(name, cs))
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def _delete_pump(name: str, cs: ChangeSet) -> DatabaseCommand:
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element_id = str(cs.operations[0]['id'])
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f_id = sql_literal(element_id)
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statement = f"delete from network.links where id = {f_id};"
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change = g_delete_prefix | {'type': 'pump', 'id': element_id}
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return DatabaseCommand(statement, [change])
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def delete_pump(name: str, cs: ChangeSet) -> ChangeSet:
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if 'id' not in cs.operations[0]:
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return ChangeSet()
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if get_pump(name, cs.operations[0]['id']) == {}:
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return ChangeSet()
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return execute_command(name, _delete_pump(name, cs))
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#--------------------------------------------------------------
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# [EPA2][EPA3][IN][OUT]
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# id node1 node2 KEYWORD value {KEYWORD value ...} ;desc
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# where KEYWORD = [POWER,HEAD,PATTERN,SPEED]
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#--------------------------------------------------------------
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def inp_in_pump(line: str) -> str:
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tokens = line.split()
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num = len(tokens)
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has_desc = tokens[-1].startswith(';')
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num_without_desc = (num - 1) if has_desc else num
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id = str(tokens[0])
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node1 = str(tokens[1])
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node2 = str(tokens[2])
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props = {}
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for i in range(3, num_without_desc, 2):
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props |= { tokens[i].lower(): tokens[i + 1] }
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power = float(props['power']) if 'power' in props else None
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head = str(props['head']) if 'head' in props else None
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speed = float(props['speed']) if 'speed' in props else None
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pattern = str(props['pattern']) if 'pattern' in props else None
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desc = str(tokens[-1]) if has_desc else None
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return str(f"insert into network.links (id, link_type, start_node_id, end_node_id) values ({sql_literal(id)}, 'pump', {sql_literal(node1)}, {sql_literal(node2)});insert into network.pumps (link_id, power, head_curve_id, speed, pattern_id) values ({sql_literal(id)}, {sql_literal(power)}, {sql_literal(head)}, {sql_literal(speed)}, {sql_literal(pattern)});")
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def inp_out_pump(name: str) -> list[str]:
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lines = []
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objs = read_all(name, 'select l.id, l.start_node_id as node1, l.end_node_id as node2, p.power, p.head_curve_id as head, p.speed, p.pattern_id as pattern from network.links l join network.pumps p on p.link_id = l.id order by l.id')
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for obj in objs:
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id = obj['id']
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node1 = obj['node1']
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node2 = obj['node2']
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power = f"POWER {obj['power']}" if obj['power'] != None else ''
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head = f"HEAD {obj['head']}" if obj['head'] != None else ''
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speed = f"SPEED {obj['speed']}" if obj['speed'] != None else ''
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pattern = f"PATTERN {obj['pattern']}" if obj['pattern'] != None else ''
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desc = ';'
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lines.append(f'{id} {node1} {node2} {power} {head} {speed} {pattern} {desc}')
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return lines
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def unset_pump_by_curve(name: str, curve: str) -> ChangeSet:
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cs = ChangeSet()
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rows = read_all(name, "select link_id as id, power from network.pumps where head_curve_id = %s", (curve,))
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for row in rows:
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if row['power'] != None:
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cs.append(g_update_prefix | {'type': 'pump', 'id': row['id'], 'head': None})
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else: # workaround to prevent pump deletion... and I don't want to remove constraint...
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cs.append(g_update_prefix | {'type': 'pump', 'id': row['id'], 'head': None, 'power': 0.0})
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return cs
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def unset_pump_by_pattern(name: str, pattern: str) -> ChangeSet:
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cs = ChangeSet()
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rows = read_all(name, "select link_id as id from network.pumps where pattern_id = %s", (pattern,))
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for row in rows:
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cs.append(g_update_prefix | {'type': 'pump', 'id': row['id'], 'pattern': None})
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return cs
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