CODEWITHSUNDEEP
djangodjango-forms
Saqib Ali
Saqib Ali

Reputation: 12605

Django form templates: How to check if a field is optional?

I have created a simple form, view and template file as described below. One of my form field is required (url1) and one is optional (comment1). In my template, I would like to display that field tags for these two fields differently based on if they are optional or not (for example: Required in red, Optionali in green). How can I do that?

Ideally there would be a boolean value in the form that looked like this: form.url1.required_flag

Here is my form:

class myForm(forms.Form):
    url1 = forms.URLField(max_length=255, label='URL #1', required=True)
    comment1 = forms.CharField(max_length=255, label='Comment #1', required=False)

The view for this form is very simple. Nothing fancy.

Here is the relevant part of the template file:

<tr>
    <td width="100" align="right">
        <div class="field_label">
            {{ form.url1.label_tag }}:
        </div>    
    </td>
    <td width="300">
        <div class="form_element_input">
            {{ form.url1 }}
        </div>    
    </td>
    <td width="100" align="right">
        <div class="field_label">
            {{ form.comment1.label_tag }}:
        </div>    
    </td>
    <td width="300">
        <div class="form_element_input">
            {{ form.comment1 }}
        </div>    
    </td>
</tr>

Upvotes: 1

Views: 2363

Answers (2)

idursun
idursun

Reputation: 6335

Take a look at required_css_class

class myForm(forms.Form):
    required_css_class = 'required'
    url1 = forms.URLField(max_length=255, label='URL #1', required=True)
    comment1 = forms.CharField(max_length=255, label='Comment #1', required=False)

You can reach css classes with form.field.css_classes or they get printed out if you use any of as_p, as_table methods.

Upvotes: 0

Jonathan
Jonathan

Reputation: 2738

{% if form.comment1.field.required %}
  //do something
{% else %}
  //do something else
{% endif %}

Should help

But again, you can pretty much use CSS to just color the comment with one color and url with another. I dont think you need to use required for that

Upvotes: 3

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