server/test/data-cwep002/schema.py
author Sylvain Thénault <sylvain.thenault@logilab.fr>
Tue, 25 Aug 2015 11:11:34 +0200
changeset 10632 d89e9176d263
parent 9968 50f046bf0e50
child 10553 1d824df4f2bd
permissions -rw-r--r--
[migration] don't attempt to carry over values when renaming a computed relation Without the fix in migractions.py, the introduced test crashes with an operational error because of an attempt to write to a non-existing relation table (computed relations are not materialized). Closes #6304946

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from yams.buildobjs import EntityType, RelationDefinition, Int, ComputedRelation

class Person(EntityType):
    salary = Int()

class works_for(RelationDefinition):
    subject = 'Person'
    object  = 'Company'
    cardinality = '?*'

class Company(EntityType):
    total_salary = Int(formula='Any SUM(SA) GROUPBY X WHERE '
                       'P works_for X, P salary SA')

class has_employee(ComputedRelation):
    rule = 'O works_for S'