account_payment_order.py

# Copyright 2020 Le Filament
# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).

from odoo import fields, models, api


class AccountPaymentOrder(models.Model):
    _inherit = 'account.payment.order'

    payment_line_amount = fields.Float(
        string='Total Opérations',
        compute='_compute_payment_line_amount'
    )
    bank_line_amount = fields.Float(
        string='Total Lignes de paiement',
        compute='_compute_bank_line_amount'
    )
    attachment_ids = fields.One2many(
        comodel_name='ir.attachment',
        compute='_compute_attachment_ids'
    )

    # ------------------------------------------------------
    # Compute fields
    # ------------------------------------------------------
    @api.multi
    def _compute_payment_line_amount(self):
        for po in self:
            po.payment_line_amount = sum(
                po.payment_line_ids.mapped('amount_currency')
            )

    @api.multi
    def _compute_bank_line_amount(self):
        for po in self:
            po.bank_line_amount = sum(
                po.bank_line_ids.mapped('amount_currency')
            )

    @api.multi
    def _compute_attachment_ids(self):
        Attachment = self.env['ir.attachment']
        for po in self:
           po.attachment_ids = Attachment.search([
               ('res_model', '=', 'account.payment.order'),
               ('res_id', '=', po.id)
           ])

    # ------------------------------------------------------
    # Button function
    # ------------------------------------------------------
    def view_payment_line(self):
        tree_id = self.env.ref(
            'cgscop_cotisation.scop_account_payment_line_tree').id
        search_id = self.env.ref(
            'cgscop_cotisation.scop_account_payment_line_search').id
        return {
            'type': 'ir.actions.act_window',
            'name': "Lignes d'opérations",
            'res_model': 'account.payment.line',
            'views': [[tree_id, 'tree']],
            'search_view_id': [search_id, 'search'],
            'domain': [['order_id', '=', self.id]],
        }

    def view_account_move(self):
        tree_id = self.env.ref(
            'cgscop_cotisation.scop_account_move_tree').id
        search_id = self.env.ref(
            'cgscop_cotisation.scop_account_move_search').id
        return {
            'type': 'ir.actions.act_window',
            'name': "Pièces comptables de l'ordre de prélèvement",
            'res_model': 'account.move',
            'views': [[tree_id, 'tree'], [False, 'form']],
            'search_view_id': [search_id, 'search'],
            'domain': [['payment_order_id', '=', self.id]],
        }