[tryton] Delete Class Attributes

[Francisco Maria Moyano Casco]

Hi,
I'm working on Tryton 4-2. I'm trying to delete some class attributes, due to a migration, but I had no success.

The code I use is the next one:
......
if table.column_exist('water'):
table.drop_column('water')
if hasattr(cls,'water'):
del cls.water
.......

Any clue why this doesn't work?

Thanks
Francisco

[Cédric Krier]

Post by Francisco Maria Moyano Casco
Hi,
I'm working on Tryton 4-2. I'm trying to delete some class attributes, due to a migration, but I had no success.
......
table.drop_column('water')
del cls.water
.......
Any clue why this doesn't work?

Why are you deleting it? Just remove the definition from the class.

[Francisco Maria Moyano Casco]

Post by Cédric Krier

Post by Francisco Maria Moyano Casco
Hi,
I'm working on Tryton 4-2. I'm trying to delete some class attributes, due to a migration, but I had no success.
......
table.drop_column('water')
del cls.water
.......
Any clue why this doesn't work?

Why are you deleting it? Just remove the definition from the class.

Because, the attributes I want to remove are part of a module base class. So, if I remove the definifinition from it, next time the module would be update to a newer version, I will have to remove again.

[Cédric Krier]

Post by Francisco Maria Moyano Casco

Post by Cédric Krier
Why are you deleting it? Just remove the definition from the class.

Because, the attributes I want to remove are part of a module base
class. So, if I remove the definifinition from it, next time the
module would be update to a newer version, I will have to remove
again.

You can not remove field from other modules. This will break the other
module.

[Francisco Maria Moyano Casco]

Post by Cédric Krier

Post by Francisco Maria Moyano Casco

Post by Cédric Krier
Why are you deleting it? Just remove the definition from the class.

Because, the attributes I want to remove are part of a module base
class. So, if I remove the definifinition from it, next time the
module would be update to a newer version, I will have to remove
again.

You can not remove field from other modules. This will break the other
module.

Ok!

I'm sorry, but why it would break the other modules? Those fields that I want to remove, are not pointed or use by anyother module or report.

[Cédric Krier]

Post by Francisco Maria Moyano Casco
I'm sorry, but why it would break the other modules? Those fields that
I want to remove, are not pointed or use by anyother module or report.

I guess if the module adds such field, it is because it is used.
If it is not really used, you should request to remove it.

[Nicolas Évrard]

Post by Francisco Maria Moyano Casco

Post by Cédric Krier

Post by Francisco Maria Moyano Casco
Hi,
I'm working on Tryton 4-2. I'm trying to delete some class attributes, due to a migration, but I had no success.
......
table.drop_column('water')
del cls.water
.......
Any clue why this doesn't work?

Why are you deleting it? Just remove the definition from the class.

Because, the attributes I want to remove are part of a module base
class. So, if I remove the definifinition from it, next time the
module would be update to a newer version, I will have to remove
again.

Why do you want to remove a field from a base module?