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refactor of model targets and constraints, addition of new constraint types and constraint construction process

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This commit is contained in:
Joshua Burman
2023-11-12 18:32:48 -05:00
parent 07af0ac0ac
commit f1fa519f31
16 changed files with 140 additions and 86 deletions
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29
app/models/constraints/metadata_constraint.py Normal file
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from __future__ import annotations
from typing import TYPE_CHECKING
from models.constraints.generic_constraint import *
if TYPE_CHECKING:
from models.solver_run import SolverRun
class MetadataConstraint(GenericConstraint):
def build(self, problem_handler: Problem, **kwargs) -> None:
logging.info('Metadata Constraint Generating...')
problem_handler.problem += lpSum(
[
len(bundle.items_with_attribute(self.reference_attribute)) * problem_handler.solver_bundles_var[bundle.id] for bundle in problem_handler.bundles
] +
[
item.attribute_exists(self.reference_attribute).real * problem_handler.solver_items_var[item.id] for item in problem_handler.items
]
) >= round(kwargs['solver_run'].total_form_items * (self.minimum / 100)), f'{self.reference_attribute.id} - {self.reference_attribute.value} - min'
problem_handler.problem += lpSum(
[
len(bundle.items_with_attribute(self.reference_attribute)) * problem_handler.solver_bundles_var[bundle.id] for bundle in problem_handler.bundles
] +
[
item.attribute_exists(self.reference_attribute).real * problem_handler.solver_items_var[item.id] for item in problem_handler.items
]
) <= round(kwargs['solver_run'].total_form_items * (self.maximum / 100)), f'{self.reference_attribute.id} - {self.reference_attribute.value} - max'