Odoo v14 _render_qweb_pdf（渲染编译 AST 时出错）

Question

我正在尝试创建一个 cron，当产品数量几乎为 0 时发送库存警报

        <record id="ir_cron_mort_crm" model="ir.cron">
            <field name="name">Product Quantity Alert</field>
            <field name="model_id" ref="model_stock_quant"/>
            <field name="state">code</field>
            <field name="code">model.send_alert_email()</field>
            <field name="user_id" ref="base.user_admin"/>
            <field name="interval_number">1</field>
            <field name="interval_type">days</field>
            <field name="numbercall">-1</field>
            <field name="priority">0</field>
            <field name="active" eval="True"/>

        </record>

我正在使用此代码

from odoo import models, fields, api
import base64


class StockQuant(models.Model):
    _inherit = 'stock.quant'

    alert_qty = fields.Float(string='Alert Quantity', store=True)

    def send_alert_email(self):
        # Retrieve the PDF report template
        print("innnnnn")
        report_template_id = self.env.ref('y_slnee_test.report_stock_alert')._render_qweb_pdf(self.id)
        print('report---',report_template_id)

        # Encode the PDF data in base64 format
        data_record = base64.b64encode(report_template_id[0])
        print('data-----',data_record)
        # Attachment data
        ir_values = {
            'name': "Report",
            'type': 'binary',
            'datas': data_record,
            'store_fname': 'data_record',
            'mimetype': 'application/x-pdf',
        }

        data_id = self.env['ir.attachment'].sudo().create(ir_values)
        print('created data ?----', data_id)
        template = self.env.ref('y_slnee_test.report_stock_reorder_report_template_id')
        print('email template------', template)
        # Associate the created attachment with the email template
        template.attachment_ids = [(6, 0, [data_id.id])]
        print('attached file---',template.attachment_ids)
        email_values = {'email_to': '[email protected]',
                        'email_from': '[email protected]'}

        template.sudo().send_mail(1, email_values=email_values, force_send=True)
        # Remove the attachment from the email template
        template.attachment_ids = [(3, data_id.id)]
        return True


class StaticProducts(models.AbstractModel):
    _name = "report.y_slnee_test.report_stock_reorder_report_template"

    @api.model
    def _get_report_values(self, docids, data=None):
        report_data = []
        product_ids = self.env['stock.quant'].search([])

        for rec in product_ids:
            if rec.alert_qty:
                alert_qty = rec.available_quantity - rec.alert_qty
                if alert_qty < 0:

                    values = {'product': rec.product_id.name or '',
                              'location': rec.location_id.name or '',
                              'available': rec.available_quantity or '',
                              'alert': alert_qty or ''}
                    print(values)
                    report_data.append(values)
        print(report_data)
        return {
            'docs': report_data,
        }

当我手动运行 cron 且报告中没有任何内容（只有表标题）时，它正在运行 但当我有价值观时

{'product': 'BROTHER  Toner-Kit (TN-2410)', 'location': 'Vendors', 'available': -58.0, 'alert': -68.0}

{'product': 'Tintenpatrone schwarz (K-EPS-C13T34714010XL)', 'location': 'Vendors', 'available': -35.0, 'alert': -45.0}

我收到此错误：

ValueError: <class 'odoo.addons.base.models.qweb.QWebException'>: "Error to render compiling AST" while evaluating
'model.send_alert_email()'

我确定问题出在这一行：

    report_template_id = self.env.ref('y_slnee_test.report_stock_alert')._render_qweb_pdf(self.id)

你能帮我吗？

XML：

        <template id="report_stock_reorder_report_template">
            <t t-call="web.html_container">
                <t t-call="web.basic_layout">
                    <div class="page">
                        <div>
                            <style>
                                table, th, td {
                                border: 1px solid black;
                                border-collapse: collapse; }
                            </style>
                            <table class="table table-sm o_main_table">
                                <thead>
                                    <tr>
                                        <t t-set="colspan" t-value="4"/>
                                        <th class="text-right">Article</th>
                                        <th class="text-right">Emplacement</th>
                                        <th class="text-right">Qty Alert</th>
                                        <th class="text-right">Qty Disponible</th>
                                        <th class="text-right">(Qty Disponible - Qty d’Alert)</th>
                                    </tr>
                                </thead>
                                <tbody>
                                    <t t-if="docs" t-foreach="docs" t-as="l">
                                        <tr>
                                            <td>
                                                <span t-if ="l.product" t-esc="l.product"/>
                                            </td>
                                            <td>
                                                <span t-if ="l.location" t-esc="l.location"/>
                                            </td>
                                            <td>
                                                <span t-if ="l.available" t-esc="l.available"/>
                                            </td>
                                            <td>
                                                <span t-if ="l.alert" t-esc="l.alert"/>
                                            </td>
                                        </tr>
                                    </t>
                                </tbody>
                            </table>
                        </div>
                    </div>
                </t>
            </t>
        </template>

        <!-- Definition of the report -->

    <record id="report_stock_alert" model="ir.actions.report">
        <field name="name">Stock Alert Quantity</field>
        <field name="model">stock.quant</field>
        <field name="report_type">qweb-pdf</field>
        <field name="report_name">y_slnee_test.report_stock_reorder_report_template</field>
        <field name="report_file">y_slnee_test.report_stock_reorder_report_template</field>
    </record>

我尝试打印每一步来调试代码，我确定问题出在这一行：

    report_template_id = self.env.ref('y_slnee_test.report_stock_alert')._render_qweb_pdf(self.id)

我不知道如何解决

Answer 1

预览模块的链接，很简单 https://drive.google.com/file/d/1cXJ4DEIox-1LlhKgoDTkmh8xxmm-XQyM/view?usp=sharing