Extend Odoo/Openerp datatype

Question

I want to extend an odoo datatype. First I wanted to create a new datatype from scretch. This wasn't easy since odoo/openerp just don't know how to store that datatype. So now I want to extend it.

from openerp import fields
class MyDataType(fields.Text):

    @classmethod
    def browse_my_data_type(self, value1, value2):
        result = value1 + value2
        if len(result) > 0:
            return result
        else:
            return False

I tried to use it. It's possible untill I want to call the browse_my_data_type method.

from openerp import models, fields, api        
import my_new_fields as my_fields       
class my_data_type_test(models.Model):
    _name = 'my.type.test'

    name =              fields.Char('Name')
    my_data_type =      my_fields.MyDataType("My Data Type")
    result =            fields.Char("Result", compute="_set_result")    

    @api.one
    def _set_result(self):
        result = self.my_data_type.browse_my_data_type("valuehere","anotheronehere")
        if result:
            self.result = result
        else:
            self.result = ""

I used this code to test the method. Sadly it gives me the error AttributeError: 'unicode' object has no attribute 'browse_my_data_type' How can I make sure that he knows the method while using it this way? (self.my_data_type.browse_my_data_type("valuehere","anotheronehere")

Jainik Patel Jainik Patel · Accepted Answer · 2015-12-10T13:15:25

Try this code may be work:

from openerp import fields


class MyDataType(fields._String):
    type = 'text'

    def browse_my_data_type(self, value1, value2):
        result = value1 + value2
        if len(result) > 0:
            return result
        else:
            return False

Extend Odoo/Openerp datatype

1 Answers