[Modeling-users] (more) problems with inheritance

[Lorenzo Gil Sanchez]

Hi again :-)

Using the dynamic module (from CVS) I was able to create the Python
classes of my model, which uses inheritance:

My model has two entities: Person and Customer, which inherits from
Person.

My problem now is related to fetches. I have two instances on my
EditingContext: a person and a customer:

ec = EditingContext()
p = Person()
p.setName('Erny')
ec.insert(p)
print p

c = Customer()
c.setName('Lorenzo')
c.setPhone('93923924')
print c

Now, how do I get all the person in my editing context?

query = ec.fetch('Person', isDeep=1)
print len(query)
1

As you can see I'm getting one object when I should been getting two
since the Customer is-a Person

Am I doing something wrong or I just hit a bug?

I'll attach the whole code so everybody can test it.

Regards

Lorenzo

[Sebastien Bigaret]

You should get both objects with isDeep=1, right...
but before that, you need to 'ec.insert(c)' as well ;)

-- Sébastien.

Post by Lorenzo Gil Sanchez
Hi again :-)
Using the dynamic module (from CVS) I was able to create the
My model has two entities: Person and Customer, which
inherits from Person.
My problem now is related to fetches. I have two instances on my
ec = EditingContext()
p = Person()
p.setName('Erny')
ec.insert(p)
print p
c = Customer()
c.setName('Lorenzo')
c.setPhone('93923924')
print c
Now, how do I get all the person in my editing context?
query = ec.fetch('Person', isDeep=1)
print len(query)
1
As you can see I'm getting one object when I should been
getting two since the Customer is-a Person
Am I doing something wrong or I just hit a bug?
I'll attach the whole code so everybody can test it.
Regards
Lorenzo

[Lorenzo Gil Sanchez]

Sorry about this. Obviously I forgot to insert it on the EditingContext
as Mario also reminded me. Stupid mistake.

Thanks

Lorenzo

Post by Sebastien Bigaret
You should get both objects with isDeep=1, right...
but before that, you need to 'ec.insert(c)' as well ;)
-- Sébastien.

Post by Lorenzo Gil Sanchez
Hi again :-)
Using the dynamic module (from CVS) I was able to create the
My model has two entities: Person and Customer, which
inherits from Person.
My problem now is related to fetches. I have two instances on my
ec = EditingContext()
p = Person()
p.setName('Erny')
ec.insert(p)
print p
c = Customer()
c.setName('Lorenzo')
c.setPhone('93923924')
print c
Now, how do I get all the person in my editing context?
query = ec.fetch('Person', isDeep=1)
print len(query)
1
As you can see I'm getting one object when I should been
getting two since the Customer is-a Person
Am I doing something wrong or I just hit a bug?
I'll attach the whole code so everybody can test it.
Regards
Lorenzo

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[Mario Ruggier]

Post by Lorenzo Gil Sanchez
c = Customer()
c.setName('Lorenzo')
c.setPhone('93923924')
print c

You are forgetting to ec.insert(c)...

For your previous mail about inheritance problem, wait until Seb is
back to confirm whether it is actually a bug or not...

mario

[Mario Ruggier]

Post by Lorenzo Gil Sanchez
c = Customer()
c.setName('Lorenzo')
c.setPhone('93923924')
print c

You are forgetting to ec.insert(c)...

For your previous mail about inheritance problem, wait until Seb is
back to confirm whether it is actually a bug or not...

mario