Barcodes
Barcode Generation¶
Both report and label templates can render custom barcode data to in-line images.
img
Barcode data must be rendered inside an <img>
tag.
Inside the template file (whether it be for printing a label or generating a custom report), the following code will need to be included at the top of the template file:
<!-- Load the barcode helper functions -->
{% load barcode %}
1D Barcode¶
python-barcode
One dimensional barcodes (e.g. Code128) are generated using the python-barcode library.
To render a 1D barcode, use the barcode
template tag, as shown in the example below:
<!-- Don't forget to load the barcode helper! -->
{% load barcode %}
<img class='custom_class' src='{% barcode "12345678" %}'>
The default barcode renderer will generate a barcode using Code128 rendering. However other barcode formats are also supported:
{% load barcode %}
<img class='custom_class' src='{% barcode "12345678" barcode_class="Code39" %}>
You can also pass further python-barcode supported parameters as well:
{% load barcode %}
<img class='barcode' src='{% barcode part.IPN barcode_class="Code128" write_text=0 background="red" %}'>
QR-Code¶
qrcode
Two dimensional QR codes are generated using the qrcode library.
To render a QR code, use the qrcode
template tag:
{% load barcode %}
<img class='custom_qr_class' src='{% qrcode "Hello world!" %}'>
Additional parameters can be passed to the qrcode
function for rendering:
<img class='custom_qr_class' src='{% qrcode "Hello world!" fill_color="green" back_color="blue" %}'>
Documentation
Refer to the qrcode library documentation for more information