Is there a way to dynamically populate a value field in Flask-WTF form?

Question

I have a create and an update notes views. Each view has the same form to create/update a note.

I was wondering on a good way to render the value of my content only in the update view but not in the create view.

Here what I have today :

<div class="field">
    {{ form.title.label }}
    {% if request.endpoint == 'notes.update' %}
        <div class="control">
            {{ form.title(class="input", value=note.title) }}
        </div>
    {% else %}
        <div class="control">
            {{ form.title(class="input"}}
        </div>
    {% endif %}
</div>

I use a condition on the endpoint to do what I want but I don't think it's a good way to do this.

Thank you for help 🙏

Detlef · Accepted Answer · 2020-06-12 22:32:48Z

1

Populate the form in your endpoint.

form = NotesForm(request.form)
form.populate_obj(note)

There is a solution for dictionaries, too.

form = NotesForm(request.form, data={'title':'Untitled Note'})

answered Jun 12, 2020 at 22:32

Detlef

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