[V10] Same Compute method called for 2 different attributes will be called twice ? @api.multi compute method called only once on a tree view ?

Question

Hello !
Here is an example code :

class myClass(model.Model):      _name='myModule.myClass'
myClassID=fields.Integer(required=True)
att1=fields.Char(compute="_getAttr1AndAttr2", store=True)      att2=fields.Char(compute="_getAttr1AndAttr2", store=True)
att3=fields.Char(compute="_getAttr3",store=True)
@api.one      def _getAttr1AndAttr2(self):          for location in self:             self.att1="value1"             self.att2="value2"
@api.multi
@api.depends('myClassID')
def _getAttr3(self):
for

zahid · Accepted Answer

- getAttr1AndAttr2  will be called twice. you can do tests by printing some debug message inside of it.
- when a method is decorated with @api.one you don't need to iterate on self records.  "for" loop is useless here.
-  the compute method _getAttr3() will be called for all record that are being processed. Ex: all records being loaded in tree view. so be careful with computed fields. as it can affect perfs.

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