[Answered ]-How to enable tagging in the default autocomplete fields of the Django admin?

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You can make use of Django’s Select2 widget and customize it to handle the creation of new Instructions objects:

Create a custom form field that extends the ModelChoiceField and overrides the prepare_value method. This method will handle cases where the value is a string (representing a new Instruction) instead of an ID:

from django import forms

class TaggableModelChoiceField(forms.ModelChoiceField):
    def prepare_value(self, value):
        # If value is a string, assume it is a new Instruction and return 
it as the value
        if isinstance(value, str):
            return value
        return super().prepare_value(value)

Update the TaskInlineModelForm to use the TaggableModelChoiceField for the instructions field:

from django.contrib.admin.widgets import AutocompleteSelect

class TaskInlineModelForm(forms.ModelForm):
    instructions = TaggableModelChoiceField(
        queryset=Instructions.objects.all(),
        widget=AutocompleteSelect(
            Task.instructions.field,
            admin_site=admin.site,
            attrs={"data-tags": "true"},
        ),
    )

    class Meta:
        model = Task
        fields = "__all__"

TaggableModelChoiceField should override the default behavior of the field and allow it to handle both existing Instruction objects (using their IDs) and new Instruction values (as strings). When a string value is encountered, it should be treated as a new Instruction. If the value does not exist yet, it should be saved as a new instruction.

Hope this helps

👤user9604262

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