Big change to operation!
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wqy
@@ -4,82 +4,98 @@ from .s0_base import *
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from .change_set import ChangeSet
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from .s24_coordinates import *
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from .utility import *
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from .schema import *
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schema: dict[str, dict[str, Any]] = { \
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'id' : define_property(str_type, False, True), \
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'elevation' : define_property(float_type), \
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'demand' : define_property(float_type, True), \
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'pattern' : define_property(str_type, True), \
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'coord' : define_property(client_point_type), \
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'links' : define_property(str_list_type, False, True)}
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def get_junction_schema(name: str) -> dict[str, str]:
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return schema
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def _query_junction(name: str, id: str) -> Row | None:
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return read(name, f"select id, elevation, demand, pattern from junctions where id = '{id}'")
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def add_junction(name: str, id: str, x: float, y: float, elevation: float) -> ChangeSet:
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sql = f"insert into junctions (id, elevation) values ('{id}', {elevation});"
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undo_sql = f'delete from junctions where id = "{id}";'
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return add_node(name, JUNCTION, id, x, y, sql, undo_sql)
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def _get_junction(name: str, id: str) -> Row | None:
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return query(name, f"select elevation, demand, pattern from junctions where id = '{id}'")
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def delete_junction(name: str, id: str) -> ChangeSet:
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if not is_junction(name, id):
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if is_junction(name, id):
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return ChangeSet()
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row = _get_junction(name, id)
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if row == None:
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return ChangeSet()
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sql = f"insert into _node (id, type) values ('{id}', '{JUNCTION}');"
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sql += f"\ninsert into junctions (id, elevation) values ('{id}', {elevation});"
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sql += f"\ninsert into coordinates (node, coord) values ('{id}', '({x}, {y})');"
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elevation = row['elevation']
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demand = decorate(row['demand'], 'float', True)
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pattern = decorate(row['pattern'], 'str', True)
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undo = f"delete from coordinates where node = ''{id}'';"
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undo += f"\ndelete from junctions where id = ''{id}'';"
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undo += f"\ndelete from _node where id = ''{id}'';"
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sql = f"delete from junctions where id = '{id}';"
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undo_sql = f'insert into junctions (id, elevation, demand, pattern) values ("{id}", {elevation}, {demand}, {pattern});'
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return delete_node(name, JUNCTION, id, sql, undo_sql)
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write(name, sql)
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add_operation(name, sql.replace("'", "''"), undo, 'add_junction', API_ADD, JUNCTION, id)
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return get_current_change_set(name)
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def _set_junction(name: str, id: str, key: str, key_type: str, value: str, optional: bool = False) -> ChangeSet:
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if not is_junction(name, id):
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return ChangeSet()
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row = _get_junction(name, id)
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if row == None:
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return ChangeSet()
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return update(name, JUNCTION, 'junctions', 'id', id, key, key_type, row[key], value, optional)
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def set_junction_elevation(name: str, id: str, elevation: float) -> ChangeSet:
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return _set_junction(name, id, 'elevation', 'float', str(elevation))
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def set_junction_demand(name: str, id: str, demand: float) -> ChangeSet:
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return _set_junction(name, id, 'demand', 'float', str(demand), True)
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def set_junction_pattern(name: str, id: str, pattern: str) -> ChangeSet:
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if not is_pattern(name, pattern):
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return ChangeSet()
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return _set_junction(name, id, 'pattern', 'str', pattern, True)
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def set_junction_coord(name: str, id: str, x: float, y: float) -> ChangeSet:
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if not is_junction(name, id):
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return ChangeSet()
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return set_node_coord(name, JUNCTION, id, x, y)
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def get_junction_property_names(name: str) -> list[str]:
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return ['elevation', 'demand', 'pattern', 'coord', 'links']
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def get_junction_properties(name: str, id: str) -> dict[str, Any] | None:
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row = _get_junction(name, id)
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def get_junction(name: str, id: str) -> dict[str, Any] | None:
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row = _query_junction(name, id)
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if row == None:
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return None
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ps: dict[str, str] = {}
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ps['elevation'] = float(row['elevation'])
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ps['demand'] = float(row['demand']) if row != None and row['demand'] != None else None
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ps['pattern'] = row['pattern'] if row != None and row['pattern'] != None else None
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ps['demand'] = float(row['demand']) if row['demand'] != None else None
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ps['pattern'] = row['pattern']
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ps['coord'] = get_node_coord(name, id)
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ps['links'] = get_node_links(name, id)
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return ps
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def delete_junction(name: str, id: str) -> ChangeSet:
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row = get_junction(name, id)
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if row == None:
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return ChangeSet()
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old = Serialize(get_junction(name, id), schema).to_storage()
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sql = f"delete from coordinates where node = '{id}';"
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sql += f"\ndelete from junctions where id = '{id}';"
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sql += f"\ndelete from _node where id = '{id}';"
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undo = f"insert into _node (id, type) values (''{id}'', ''{JUNCTION}'');"
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undo += f"\ninsert into junctions (id, elevation, demand, pattern) values (''{id}'', {old['elevation']}, {old['demand']}, {old['pattern']});"
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undo += f"\ninsert into coordinates (node, coord) values (''{id}'', {old['coord']});"
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write(name, sql)
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add_operation(name, sql.replace("'", "''"), undo, 'delete_junction', API_DELETE, JUNCTION, id)
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return get_current_change_set(name)
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def set_junction(name: str, id: str, properties: dict[str, Any]) -> ChangeSet:
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if not is_junction(name, id):
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return ChangeSet()
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old = Serialize(get_junction(name, id), schema).to_storage()
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new = get_junction(name, id)
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ps: list[str] = []
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for key in properties:
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if key in schema and schema[key]['readonly'] == False:
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new[key] = properties[key]
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ps.append(key)
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new = Serialize(new, schema).to_execution()
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sql = f"update junctions set elevation = {new['elevation']}, demand = {new['demand']}, pattern = {new['pattern']} where id = '{id}';"
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undo = ""
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if 'coord' in ps:
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sql += f"\nupdate coordinates set coord = {new['coord']} where node = '{id}';"
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undo = f"update coordinates set coord = {old['coord']} where node = ''{id}'';"
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undo += f"\nupdate junctions set elevation = {old['elevation']}, demand = {old['demand']}, pattern = {old['pattern']} where id = ''{id}'';"
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write(name, sql)
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add_operation(name, sql.replace("'", "''"), undo, 'set_junction', API_UPDATE, JUNCTION, id, ps)
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return get_current_change_set(name)
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