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Sync fbapkg/objconstpkg.py from freiburgermsu fork #67

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Sync fbapkg/objconstpkg.py from freiburgermsu fork #67

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20 changes: 3 additions & 17 deletions modelseedpy/fbapkg/objconstpkg.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2,31 +2,17 @@

from __future__ import absolute_import

import logging
from modelseedpy.fbapkg.basefbapkg import BaseFBAPkg

# Base class for FBA packages
class ObjConstPkg(BaseFBAPkg):
def __init__(self, model):
def __init__(self,model):
BaseFBAPkg.__init__(self, model, "objective constraint", {}, {"objc": "none"})

def build_package(self, lower_bound, upper_bound):
return self.build_constraint(lower_bound, upper_bound)

def build_constraint(self, lower_bound, upper_bound):

def build_package(self,lower_bound,upper_bound):
coef = self.model.solver.objective.get_linear_coefficients(
self.model.solver.objective.variables
)
#Check if the constraint already exists and if so, just updating bounds in place
for name in self.constraints["objc"]:
constraint = self.constraints["objc"][name]
existing_coef = constraint.get_linear_coefficients(
constraint.variables
)
if coef == existing_coef:
constraint.lb = lower_bound
constraint.ub = upper_bound
return constraint
return BaseFBAPkg.build_constraint(
self, "objc", lower_bound, upper_bound, coef, None
)
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