eoq3 - EOQ3 core implementation for python

This implements EOQ3 domains, values, queries and commands in python. It is the central module of the EOQ3 implementation for python. It contains a ready-to-use domainwithmdb for programmatic model interactions.

Getting started example

This example implements the "Why EOQ?" example and some additional prints of model information.

from eoq3.domainwithmdb import DomainWithMdb
from eoq3.command import Crt, Get,Set #commands
from eoq3.query import Cls,Pth #queries
from eoq3.concepts import * #import constants as CONCEPTS, ....
from eoq3.examples.warehouse import CreateWarehouseM1Model, CreateWarehouseM2Model #creation of example models
# currently PyecoreMdb is the only local domain. eoq3pyecoremdb must be installed.
from eoq3pyecoremdb import PyEcoreMdb #requres pyecoremdb to be installed

# Initialize a local domain
mdb = PyEcoreMdb()
domain = DomainWithMdb(mdb)
# Init warehouse meta and user model
CreateWarehouseM2Model(domain) #open function to see model creation commands
CreateWarehouseM1Model(domain) #open function to see model creation commands
# Would you like to get a list of articles?
articles = domain.Do( Get( Cls('Article') ) )
print("Articles: %s"%(articles))
# Would you like to know which one is sold less than 3-times?
badArticles = domain.Do( Get( Cls('Article').Sel(Pth('sells').Les(3)) ) )
print("Bad articles: %s"%(badArticles))
# You might want to reduce their price by 10%?
nameAndPrice = domain.Do( Get( Cls('Article').Zip([Pth('name'),Pth('price')])))
print("Article prices: %s"%(nameAndPrice))
domain.Do( Set( 
	Cls('Article').Sel(Pth('sells').Les(3)),
	'price',
	Cls('Article').Sel(Pth('sells').Les(3)).Pth('price').Mul(0.9) 
) )
nameAndPrice = domain.Do( Get( Cls('Article').Zip([Pth('name'),Pth('price')])))
print("Article prices: %s"%(nameAndPrice))
# Would you like to see a list of the names of the categories of the badly selling articles sorted by ascendingly?
badCategories = domain.Do( Get( Cls('Article').Sel(Pth('sells').Les(3)).Met('PARENT').Pth('name').Uni([]).Idx('SORTASC') ) )
print(badCategories)

This example is available as https://gitlab.com/eoq/py/pyeoq/Examples/Eoq3/WhyWarehouseExample.py

Documentation

For more information see EOQ3 documentation: https://eoq.gitlab.io/doc/eoq3/

pyeoq repository

Pyeoq module's source can be found here: https://gitlab.com/eoq/py/pyeoq

Author

2024 Bjoern Annighoefer