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omar ahmed

hello odoo community,,

i have field 'production date' , 'duration' field and i need calculate 'expiration date' 

this is my module 

from odoo import fields,models


class MyMarketProduct(models.Model):
    _name = 'market.products'

    def _compute_expiry(self):
        self.production_date+self.valid_durity

    name = fields.Char()
    product_country = fields.Char()
    image = fields.Binary()
    production_date = fields.Date()
    desc = fields.Char()
    valid_durity = fields.Date()
    expiration_date = fields.Date(compute=_compute_expiry)
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Emipro Technologies Pvt. Ltd.
Best Answer

Hello Omar,

You can calculate with new field for duration like how many month,week,year etc.. instead of date field for duration.

You can do it like following :

 duration = fields.Char('Duration')
    duration_unit = fields.Selection([('month','Month'),('week','Week'),('day','Day'),('year','Year')])

Your calculation should be like following :

from dateutil.relativedelta import relativedelta

class MyMarketProduct(models.Model):
    _name = 'market.products'

    def _compute_expiry(self):
        
	if self.duration_unit=='month':
	    expiry_date=self.production_date + relativedelta(months = int(self.duration))
        elif self.duration_unit=='week':
	    expiry_date=self.production_date + relativedelta(weeks = int(self.duration))
        elif self.duration_unit=='day'                     
            expiry_date=self.production_date + relativedelta(days = int(self.duration))
        elif self.duration_unit=='year'                     
            expiry_date=self.production_date + relativedelta(years = int(self.duration)) 
                                   
	self.expiration_date=expiry_date

Thanks,

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