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Hello,

Sorry if this is super basic, I am almost new with python.

So, basically I am passing an ID to a function and I need to get the record just before the one with the ID I am passing from a table.

This is my function

def get_prev_period(self,period_id):
        if period_id:
            period_list = self.pool.get('sim.periods').browse(self.cr, self.uid, period_id)
            current_id = period_list.id
            #Now I need to get the ID just above current_id
        return 0

So, basically I need to get the ID just above the current_id. I am not able to do current_id - 1 because that might no be the case.

Any tips will be much appreciated! Thanks!

Avatar
Buang
Jawaban Terbai

You need to execute your manual query on postgres database table,

def get_prev_period(self,period_id):
            if period_id:
               result= self.cr("""SELECT id FROM table_name WHERE id < %s ORDER BY id DESC LIMIT 1""", [period_id])
               result = self.cr.dictfetchall()
               print result # holds the one row data
               current_id = result[0]['id']
            return 0
Avatar
Buang
Penulis

You are a genius! Thanks!

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