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path: root/indoteknik_custom/models/shipment_group.py
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from odoo import models, api, fields
from odoo.exceptions import AccessError, UserError, ValidationError
from datetime import timedelta, date
import logging

_logger = logging.getLogger(__name__)

class ShipmentGroup(models.Model):
    _name = "shipment.group"
    _description = "Shipment Group"
    _inherit = ['mail.thread']
    _rec_name = 'number'

    number = fields.Char(string='Document No', index=True, copy=False, readonly=True, tracking=True)
    shipment_line = fields.One2many('shipment.group.line', 'shipment_id', string='Shipment Group Lines', auto_join=True)
    partner_id = fields.Many2one('res.partner', string='Customer')

    @api.model
    def create(self, vals):
        vals['number'] = self.env['ir.sequence'].next_by_code('shipment.group') or '0'
        result = super(ShipmentGroup, self).create(vals)
        return result
    
class ShipmentGroupLine(models.Model):
    _name = 'shipment.group.line'
    _description = 'Shipment Group Line'
    _order = 'shipment_id, id'

    shipment_id = fields.Many2one('shipment.group', string='Shipment Ref', required=True, ondelete='cascade', index=True, copy=False)
    partner_id = fields.Many2one('res.partner', string='Customer')
    picking_id = fields.Many2one('stock.picking', string='Picking')
    sale_id = fields.Many2one('sale.order', string='Sale Order')
    state = fields.Char(string='Status', readonly=True, compute='_compute_state')
    shipping_paid_by = fields.Selection([
        ('indoteknik', 'Indoteknik'),
        ('customer', 'Customer')
    ], string='Shipping Paid by', copy=False)

    @api.depends('picking_id.state')
    def _compute_state(self):
        for rec in self:
            if rec.picking_id:
                if rec.picking_id.state == 'assigned':
                    rec.state = 'Ready'
                elif rec.picking_id.state == 'done':
                    rec.state = 'Done'
                elif rec.picking_id.state == 'cancel':
                    rec.state = 'Cancelled'
                elif rec.picking_id.state == 'confirmed':
                    rec.state = 'Waiting'
                elif rec.picking_id.state == 'waiting':
                    rec.state = 'Waiting Another Operation'
                else:
                    rec.state = 'draft'
            else:
                rec.state = 'draft'

    @api.onchange('picking_id')
    def onchange_picking_id(self):
        if self.picking_id:
            picking = self.env['stock.picking'].browse(self.picking_id.id)

            if self.shipment_id.partner_id and self.shipment_id.partner_id != picking.partner_id:
                raise UserError('Partner must be same as shipment group')

            self.partner_id = picking.partner_id
            self.shipping_paid_by = picking.sale_id.shipping_paid_by

            if not self.shipment_id.partner_id:
                self.shipment_id.partner_id = picking.partner_id

            self.sale_id = picking.sale_id

    @api.model
    def create(self, vals):
        record = super(ShipmentGroupLine, self).create(vals)
        if record.picking_id:
            record.onchange_picking_id()
        return record

    def write(self, vals):
        res = super(ShipmentGroupLine, self).write(vals)
        if 'picking_id' in vals:
            self.onchange_picking_id()
        return res