assign_roll_no.py

# See LICENSE file for full copyright and licensing details.

from odoo import fields, models


class AssignRollNo(models.TransientModel):
    '''designed for assigning roll number to a student'''

    _name = 'assign.roll.no'
    _description = 'Assign Roll Number'

    standard_id = fields.Many2one('school.standard', 'Class', required=True)
    medium_id = fields.Many2one('standard.medium', 'Medium', required=True)

    def assign_rollno(self):
        '''Method to assign roll no to students'''
        student_obj = self.env['student.student']
        # Search Student
        for rec in self:
            student_ids = student_obj.search([
                            ('standard_id', '=', rec.standard_id.id),
                            ('medium_id', '=', rec.medium_id.id)],
                            order="name")
            # Assign roll no according to name.
            number = 1
            for student in student_ids:
                number += 1
                student.write({'roll_no': number})