A simple django widget that appends a character count to a text input which is determined by the max_length of that particular field. This only works on text inputs and not text areas (as they don't respect max_length anyway)

Usage

There are a few ways of setting a widget for a form field

via forms.py

from django import forms
from charsleft_widget.widgets import CharsLeftInput

class ExampleForm(forms.Form):
	name = forms.CharField(widget=CharsLeftInput())

or

from django import forms
from charsleft_widget.widgets import CharsLeftInput

class ExampleForm(forms.Form):
	name = forms.CharField()

	def __init__(self, *args, *kwargs):
		super(ExampleForm, self).__init__(*args, **kwargs)
		self.fields['name'].widget = CharsLeftInput

via admin.py

from django.contrib import admin
class ExampleAdmin(admin.ModelAdmin):
	# Use widget on all instances of this form field
	formfield_overrides = {
    	models.TextField: {'widget': CharsLeftInput},
	}

or

from django.contrib import admin
class ExampleAdmin(admin.ModelAdmin):
	pass

# Use widget on particular instances of the form field
def formfield_for_dbfield(self, db_field, **kwargs):
	if db_field.name is 'name':
		kwargs['widget'] = CharsLeftInput
	return super(ContentObjectAdmin,self).formfield_for_dbfield(db_field,**kwargs)