124 lines
4.9 KiB
Python
124 lines
4.9 KiB
Python
from .database import *
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SCADA_DEVICE_TYPE_PRESSURE = 'PRESSURE'
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SCADA_DEVICE_TYPE_DEMAND = 'DEMAND'
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SCADA_DEVICE_TYPE_QUALITY = 'QUALITY'
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SCADA_DEVICE_TYPE_LEVEL = 'LEVEL'
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SCADA_DEVICE_TYPE_FLOW = 'FLOW'
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SCADA_DEVICE_TYPE_UNKNOWN = 'UNKNOWN'
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def get_scada_device_schema(name: str) -> dict[str, dict[str, Any]]:
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return { 'id' : {'type': 'str', 'optional': False, 'readonly': True },
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'name' : {'type': 'str', 'optional': True , 'readonly': False},
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'address': {'type': 'str', 'optional': True , 'readonly': False},
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'sd_type': {'type': 'str', 'optional': True , 'readonly': False}}
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def get_scada_device(name: str, id: str) -> dict[str, Any]:
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sm = try_read(name, f"select * from scada_device where id = '{id}'")
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if sm == None:
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return {}
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d = {}
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d['id'] = str(sm['id'])
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d['name'] = str(sm['name']) if sm['name'] != None else None
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d['address'] = str(sm['address']) if sm['address'] != None else None
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d['sd_type'] = str(sm['sd_type']) if sm['sd_type'] != None else None
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return d
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class ScadaDevice(object):
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def __init__(self, input: dict[str, Any]) -> None:
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self.type = 'scada_device'
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self.id = str(input['id'])
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self.name = str(input['name']) if 'name' in input and input['name'] != None else None
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self.address = str(input['address']) if 'address' in input and input['address'] != None else None
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self.sd_type = str(input['sd_type']) if 'sd_type' in input and input['sd_type'] != None else None
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self.f_type = f"'{self.type}'"
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self.f_id = f"'{self.id}'"
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self.f_name = f"'{self.name}'" if self.name != None else 'null'
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self.f_address = f"'{self.address}'" if self.address != None else 'null'
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self.f_sd_type = f"'{self.sd_type}'" if self.sd_type != None else 'null'
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def as_dict(self) -> dict[str, Any]:
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return { 'type': self.type, 'id': self.id, 'name': self.name, 'address': self.address, 'sd_type': self.sd_type }
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def as_id_dict(self) -> dict[str, Any]:
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return { 'type': self.type, 'id': self.id }
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def _set_scada_device(name: str, cs: ChangeSet) -> DbChangeSet:
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old = ScadaDevice(get_scada_device(name, cs.operations[0]['id']))
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raw_new = get_scada_device(name, cs.operations[0]['id'])
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new_dict = cs.operations[0]
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schema = get_scada_device_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 = ScadaDevice(raw_new)
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redo_sql = f"update scada_device set name = {new.f_name}, address = {new.f_address}, sd_type = {new.f_sd_type} where id = {new.f_id};"
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undo_sql = f"update scada_device set name = {old.f_name}, address = {old.f_address}, sd_type = {old.f_sd_type} where id = {old.f_id};"
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redo_cs = g_update_prefix | new.as_dict()
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undo_cs = g_update_prefix | old.as_dict()
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return DbChangeSet(redo_sql, undo_sql, [redo_cs], [undo_cs])
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def set_scada_device(name: str, cs: ChangeSet) -> ChangeSet:
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if get_scada_device(name, cs.operations[0]['id']) == {}:
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return ChangeSet()
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return execute_command(name, _set_scada_device(name, cs), False)
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def _add_scada_device(name: str, cs: ChangeSet) -> DbChangeSet:
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new = ScadaDevice(cs.operations[0])
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redo_sql = f"insert into scada_device (id, name, address, sd_type) values ({new.f_id}, {new.f_name}, {new.f_address}, {new.f_sd_type});"
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undo_sql = f"delete from scada_device where id = {new.f_id};"
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redo_cs = g_add_prefix | new.as_dict()
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undo_cs = g_delete_prefix | new.as_id_dict()
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return DbChangeSet(redo_sql, undo_sql, [redo_cs], [undo_cs])
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def add_scada_device(name: str, cs: ChangeSet) -> ChangeSet:
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if get_scada_device(name, cs.operations[0]['id']) != {}:
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return ChangeSet()
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return execute_command(name, _add_scada_device(name, cs), False)
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def _delete_scada_device(name: str, cs: ChangeSet) -> DbChangeSet:
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old = ScadaDevice(get_scada_device(name, cs.operations[0]['id']))
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redo_sql = f"delete from scada_device where id = {old.f_id};"
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undo_sql = f"insert into scada_device (id, name, address, sd_type) values ({old.f_id}, {old.f_name}, {old.f_address}, {old.f_sd_type});"
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redo_cs = g_delete_prefix | old.as_id_dict()
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undo_cs = g_add_prefix | old.as_dict()
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return DbChangeSet(redo_sql, undo_sql, [redo_cs], [undo_cs])
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def delete_scada_device(name: str, cs: ChangeSet) -> ChangeSet:
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if get_scada_device(name, cs.operations[0]['id']) == {}:
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return ChangeSet()
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return execute_command(name, _delete_scada_device(name, cs), False)
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def get_all_scada_device_ids(name: str) -> list[str]:
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result : list[str] = []
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rows = read_all(name, 'select id from scada_device order by id')
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for row in rows:
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result.append(str(row['id']))
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return result
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def get_all_scada_devices(name: str) -> list[dict[str, Any]]:
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return read_all(name, 'select * from scada_device order by id')
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