widgets.py

from django import forms
from django.contrib.auth.models import User
from django.utils.translation import ugettext as _
from django.utils.safestring import mark_safe
from django.utils.html import conditional_escape, format_html, format_html_join
from tracker import models
import paypal
import re
from decimal import *
from django.forms import formsets

class MegaFilterWidget(forms.widgets.Widget):
  def __init__(self, model, **kwargs):
    self.model = model
    super(MegaFilterWidget, self).__init__(**kwargs)
    
  def value_from_datadict(self, data, files, name):
    if name in data and data[name] and data[name] != 'None':
      return int(data[name])
    else:
      return None
    
  def render(self, name, value, attrs=None):
    return format_html("""
    <div class="mf_widget mf_model_{0}">
    <input id="id_{1}" name="{1}" class="mf_selection" type="hidden" value="{2}"/>
    <label class="mf_groupingLabel">Group:</label> <select class="mf_grouping"></select>
    <label class="mf_filterLabel">Filter:</label> <input class="mf_filter" type="text"/> <br />
    <select size="6" class="mf_selectbox"></select> <br />
    <span class="mf_description" /> </div>""", self.model, name, value)

class NumberInput(forms.widgets.Input):
  def __init__(self, attrs=None):
    self.input_type="number"
    super(NumberInput, self).__init__(attrs)

class ReadOnlyWidget(forms.widgets.Widget):
    def render(self, _, value, attrs={}):
        return value