Question

i have some necessary fields in my django ModelForm. How can i add a red star (*) after the required fields ?

Answer 1

I’m going to assume you want this to happen automatically, so here’s one of a few different ways:

{% for field in form %}
    <label for="{{ field.auto_id }}">{{ field.label_tag }}
    {% if field.field.required %}
        <span class="required">*</span>
    {% endif %}
    </label>
{% endfor %}

Then you can style the asterisk using CSS.

Or, you can add the asterisk using CSS instead if you want:

<style type="text/css">
    span.required:after { content: '*'; }
</style>
{% for field in form %}
    <label for="{{ field.auto_id }}">
    {% if field.field.required %}
        <span class="required">{{ field.label_tag }}</span>
    {% else %}
        {{ field.label_tag }}
    {% endif %}
    </label>
{% endfor %}

This one is probably a better option if you want to do other things with the required field as well.

However, if you will not be accessing the fields individually (such as using {{ form.as_p }}), then you can add a property to your ModelForm:

class FooForm(forms.ModelForm):
    required_css_class = 'required'

That will define all fields that are required as having the ‘required’ class (and thus, you can use the CSS code I mentioned above to add an asterisk (or whatever else you want to do with it).