This is a TextField-based field with TextInput widget. This can be used instead of a CharField whenever you do not want to restrict the length of the content at the DB level (see http://stackoverflow.com/questions/4848964/postgresql-difference-between-text-and-varchar-character-varying for more info).

fields.py

from django.db import models

from django import forms


class TextInputTextField(models.TextField):
    def formfield(self, **kwargs):
         kwargs.update({
            "widget": forms.TextInput
         })
         return super(TextInputTextField, self).formfield(**kwargs)