109 lines
4.9 KiB
Python
109 lines
4.9 KiB
Python
from .operation import *
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from .s0_base import *
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from .s24_coordinates import *
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def get_junction_schema(name: str) -> dict[str, dict[str, Any]]:
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return { 'id' : {'type': 'str' , 'optional': False , 'readonly': True },
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'x' : {'type': 'float' , 'optional': False , 'readonly': False},
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'y' : {'type': 'float' , 'optional': False , 'readonly': False},
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'elevation' : {'type': 'float' , 'optional': False , 'readonly': False},
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'demand' : {'type': 'float' , 'optional': True , 'readonly': False},
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'pattern' : {'type': 'str' , 'optional': True , 'readonly': False},
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'links' : {'type': 'str_list' , 'optional': False , 'readonly': True } }
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def get_junction(name: str, id: str) -> dict[str, Any]:
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j = read(name, f"select * from junctions where id = '{id}'")
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xy = get_node_coord(name, id)
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d = {}
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d['id'] = str(j['id'])
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d['x'] = float(xy['x'])
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d['y'] = float(xy['y'])
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d['elevation'] = float(j['elevation'])
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d['demand'] = float(j['demand']) if j['demand'] != None else None
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d['pattern'] = str(j['pattern']) if j['pattern'] != None else None
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d['links'] = get_node_links(name, id)
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return d
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class Junction(object):
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def __init__(self, input: dict[str, Any]) -> None:
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self.type = 'junction'
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self.id = str(input['id'])
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self.x = float(input['x'])
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self.y = float(input['y'])
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self.elevation = float(input['elevation'])
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self.demand = float(input['demand']) if 'demand' in input and input['demand'] != 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 = f"'{self.type}'"
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self.f_id = f"'{self.id}'"
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self.f_coord = f"'({self.x}, {self.y})'"
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self.f_elevation = self.elevation
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self.f_demand = self.demand if self.demand != None else 'null'
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self.f_pattern = f"'{self.pattern}'" if self.pattern != 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, 'x': self.x, 'y': self.y, 'elevation': self.elevation, 'demand': self.demand, 'pattern': self.pattern }
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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_junction(name: str, cs: ChangeSet) -> ChangeSet:
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old = Junction(get_junction(name, cs.operations[0]['id']))
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raw_new = get_junction(name, cs.operations[0]['id'])
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new_dict = cs.operations[0]
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schema = get_junction_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 = Junction(raw_new)
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redo_sql = f"update junctions set elevation = {new.f_elevation}, demand = {new.f_demand}, pattern = {new.f_pattern} where id = {new.f_id};"
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redo_sql += f"\nupdate coordinates set coord = {new.f_coord} where node = {new.f_id};"
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undo_sql = f"update coordinates set coord = {old.f_coord} where node = {old.f_id};"
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undo_sql += f"\nupdate junctions set elevation = {old.f_elevation}, demand = {old.f_demand}, pattern = {old.f_pattern} 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 execute_command(name, redo_sql, undo_sql, redo_cs, undo_cs)
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def add_junction(name: str, cs: ChangeSet) -> ChangeSet:
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new = Junction(cs.operations[0])
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redo_sql = f"insert into _node (id, type) values ({new.f_id}, {new.f_type});"
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redo_sql += f"\ninsert into junctions (id, elevation, demand, pattern) values ({new.f_id}, {new.f_elevation}, {new.f_demand}, {new.f_pattern});"
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redo_sql += f"\ninsert into coordinates (node, coord) values ({new.f_id}, {new.f_coord});"
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undo_sql = f"delete from coordinates where node = {new.f_id};"
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undo_sql += f"\ndelete from junctions where id = {new.f_id};"
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undo_sql += f"\ndelete from _node 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 execute_command(name, redo_sql, undo_sql, redo_cs, undo_cs)
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def delete_junction(name: str, cs: ChangeSet) -> ChangeSet:
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old = Junction(get_junction(name, cs.operations[0]['id']))
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redo_sql = f"delete from coordinates where node = {old.f_id};"
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redo_sql += f"\ndelete from junctions where id = {old.f_id};"
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redo_sql += f"\ndelete from _node where id = {old.f_id};"
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undo_sql = f"insert into _node (id, type) values ({old.f_id}, {old.f_type});"
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undo_sql += f"\ninsert into junctions (id, elevation, demand, pattern) values ({old.f_id}, {old.f_elevation}, {old.f_demand}, {old.f_pattern});"
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undo_sql += f"\ninsert into coordinates (node, coord) values ({old.f_id}, {old.f_coord});"
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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 execute_command(name, redo_sql, undo_sql, redo_cs, undo_cs)
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