16 lines
766 B
Python
16 lines
766 B
Python
from random import randint
|
|
|
|
from models.constraint import *
|
|
|
|
class BundleConstraint(Constraint):
|
|
def build(self, problem_handler: Problem, _) -> None:
|
|
logging.info('Bundles Constraint Generating...')
|
|
|
|
# TODO: account for many different bundle types, since the id condition in L33 could yield duplicates
|
|
if problem_handler.bundles != None and len(problem_handler.bundles) > 0:
|
|
# make sure the total bundles used in generated form is limited between min-max set
|
|
problem_handler.problem += lpSum([
|
|
problem_handler.solver_bundles_var[bundle.id] for bundle in problem_handler.bundles
|
|
]) == randint(int(self.minimum),
|
|
int(self.maximum)), f'Allowing min - max bundles'
|