30 lines
1.4 KiB
Python
30 lines
1.4 KiB
Python
from __future__ import annotations
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from typing import TYPE_CHECKING
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from models.constraint import *
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if TYPE_CHECKING:
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from models.solver_run import SolverRun
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class MetadataConstraint(Constraint):
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def build(self, problem_handler: Problem, solver_run: SolverRun) -> None:
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logging.info('Metadata Constraint Generating...')
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problem_handler.problem += lpSum(
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[
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len(bundle.items_with_attribute(self.reference_attribute)) * problem_handler.solver_bundles_var[bundle.id] for bundle in problem_handler.bundles
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] +
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[
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item.attribute_exists(self.reference_attribute).real * problem_handler.solver_items_var[item.id] for item in problem_handler.items
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]
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) >= round(solver_run.total_form_items * (self.minimum / 100)), f'{self.reference_attribute.id} - {self.reference_attribute.value} - min'
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problem_handler.problem += lpSum(
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[
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len(bundle.items_with_attribute(self.reference_attribute)) * problem_handler.solver_bundles_var[bundle.id] for bundle in problem_handler.bundles
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] +
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[
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item.attribute_exists(self.reference_attribute).real * problem_handler.solver_items_var[item.id] for item in problem_handler.items
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]
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) <= round(solver_run.total_form_items * (self.maximum / 100)), f'{self.reference_attribute.id} - {self.reference_attribute.value} - max'
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