Hello Simon

Please try with
t-att-src="'/report/barcode/?type=%s&value=%s&width=%s&height=%s' % ('Code128', you field name, 600, 150)"

Thanks & Regards,

 
Email: odoo@aktivsoftware.com

Skype: kalpeshmaheshwari

Hi Simon:

To clarify Jainesh's post, Odoo has a builtin feature that allows you to generate a barcode image and include it in the QWeb report. To do this, you need to include an tag at the desired location in your report xml like so:

<img alt="SO Number" t-att-src="'/report/barcode/?type=%s&value=%s&width=%s&height=%s' % ('Code128', doc.name, 600, 150)"/>

The URL /report/barcode/ points to a controller that generates a barcode image based on the values of the parameters passed to it.

Hope this helps.