如何在QWeb报表中完整打印Many2many字段技术咨询

Alright, let's tackle this problem step by step. Printing Many2many fields in QWeb reports (matching the clean, structured look of sales quotes/invoices) is totally doable—here's how to pull it off, including your specific use case with the cie10_informed model and informed_app field.

First, remember that in Odoo, a Many2many field returns a record set (a collection of related records), not a single value. So you can't just drop a t-field directly on it—you need to loop through each record in the set, just like how sales quotes iterate over order lines.

Sales quotes/invoices use tables to list line items neatly. We'll reuse that pattern for your Many2many field:

• Use a table with a header row for column labels
• Loop through the Many2many record set with t-foreach
• Render each related record's fields in table cells
• Add a fallback for empty cases

Here's a ready-to-adapt code snippet for your QWeb template. I'll assume your informed_app related model has fields like code, name, and description—adjust these to match your actual field names:

<!-- Inside your informed_report QWeb template -->
<div class="page">
  <!-- Your existing report content goes here -->

  <!-- Section for the Many2many field: informed_app -->
  <h3 class="mt-4">Associated Applications</h3>
  <table class="table table-condensed table-striped oe_list_table">
    <thead>
      <tr class="oe_list_header">
        <th class="text-left">Code</th>
        <th class="text-left">Application Name</th>
        <th class="text-left">Details</th>
      </tr>
    </thead>
    <tbody>
      <!-- Loop through each record in the informed_app Many2many set -->
      <tr t-foreach="o.informed_app" t-as="app_record">
        <td><span t-field="app_record.code"/></td>
        <td><span t-field="app_record.name"/></td>
        <td><span t-field="app_record.description"/></td>
      </tr>
      <!-- Handle empty Many2many case -->
      <tr t-if="not o.informed_app">
        <td colspan="3" class="text-center text-muted">No associated applications found</td>
      </tr>
    </tbody>
  </table>
</div>

Breakdown of Key Parts: #

• t-foreach="o.informed_app": Iterates over every record linked via the informed_app field (where o represents the current cie10_informed record in the report)
• t-as="app_record": Assigns a nickname to each record in the loop, so you can reference its fields easily
• table classes: table-condensed, table-striped, and oe_list_table match the exact styling used in Odoo's sales quotes/invoices for a consistent look
• Empty state handling: The final <tr> shows a friendly message if there are no linked records

If you're still not seeing the field content, check these quick fixes:

• Permissions: Ensure the report's security group has read access to both the cie10_informed model's informed_app field and all the fields you're trying to print from the related model
• Field Existence: Double-check that the fields you're referencing (like app_record.code) actually exist on the model linked by informed_app
• Report Context: Confirm your report's XML has model="cie10.informed" (adjust the XML ID to match your model's actual external ID) so o correctly points to your record
• Test Data: Make sure the cie10_informed record you're testing has at least one linked record in informed_app—empty sets will show the fallback message

内容的提问来源于stack exchange，提问作者ayar