Dear Niyas Raphy, many thanks for the fast and proper reply. I now realized to have wrongly operated.

Going further, I applied your correction and that error doesn't rise anymore. Good Job.

In any case, I'm not able to fulfill my job and I'm sure to wrongly refer to the fields and values.

If it is possible I would post, looking for additional support, please.

This is my code and I'm bolding the responsible command:

t-if="1960 in object.tag_ids" data-oe-t-group="0" data-oe-t-selectable="true" data-oe-t-group-active="true" data-oe-t-inline="true">

With this I receive the following error

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User Error

×

Failed to render QWeb template : unsupported operand type(s) for "in": 'crm.tag()' and '' Traceback (most recent call last): File "/home/odoo/src/odoo/15.0/odoo/addons/base/models/qweb.py", line 219, in render_template yield from compiled_fn(self, values, log) File "", line 6, in template File "/home/odoo/src/odoo/15.0/odoo/models.py", line 5775, in __contains__ raise TypeError(f"unsupported operand type(s) for \"in\": '{self._name}()' and '{type(item)}'") TypeError: unsupported operand type(s) for "in": 'crm.tag()' and '' Error when render the template TypeError: unsupported operand type(s) for "in": 'crm.tag()' and '' Template: Path: /div/t[2] Node: )

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Can you please suggest how should I write the command correctly? Thank you for your time, anyway.

Best regards

Max

Hi,
You have to use technical name of the field, here it is: tag_ids

You can activate the developer mode and hover the mouse on the field, then you will get the technical name of field in the pop up.

Thanks