field.widget.component does not exist (django_select.html)

[mperesson]

Django 2.1.7 Python 3.7 django-material 1.5.2

Problem: 'component' does't exist in Select widget.

What am I doing wrong?

Edit: same for "form_select_empty_label", not defined.

[kmmbvnr]

Could you please describe how and where this error appears?

[mperesson]

I'm using a ModelChoiceField in my form. Widget template used is "templates/material/fields/django_select.html"

On line 2: {% part bound_field.field %}<{{ field.widget.component|default:'dmc-select' }}><div class="row">

On line 21: <option {% if value == None or value == '' %}value{% else %}value="{{ value|unlocalize }}"{% endif %}{% if selected %} selected="selected"{% endif %}>{% if value == None or value == '' %}{{ form_select_empty_label|default:choice }}{% else %}{{ choice }}{% endif %}</option>{% endfor %}

Since there is no "component" in "field.widget" (and 'form_select_empty_label' is not declared in te context) the "default" templatetag isn't even called.

[mperesson]

I just found the problem.

In my settings.py file, in the "TEMPLATES['OPTIONS']" dict I have this option: 'string_if_invalid': '<< MISSING VARIABLE "%s" >>' if DEBUG else '',

That's what make it bug. If i remove it it's ok.

[kmmbvnr]

mm, yep. Thank's for exploration. I almost forgot about that django template functionality.

Development version of viewflow 2.0 form rendering already based on python code and webcomponents.

But for 1.x string_if_invalid options would not be supported.