eerien

from django import forms
from django.core import validators
from django.core.exceptions import ValidationError

class MinLengthValidator(validators.MinLengthValidator):
    message = 'Ensure this value has at least %(limit_value)d elements (it has %(show_value)d).'

class MaxLengthValidator(validators.MaxLengthValidator):
    message = 'Ensure this value has at most %(limit_value)d elements (it has %(show_value)d).'

juntalis

/* Utility one-liners for checking types, values, etc */
var prims = ['string', 'number', 'boolean', 'function', 'array' ],
	typof = function(x) { var s, t = typeof(x); return t === 'object' ? (s = Object.prototype.toString.call(x)).substring(8, s.length - 1).toLowerCase() : t; },
	undef = function(x) { return typeof(x) === 'undefined' || x == undefined; },
	defined = function(x) { return !undef(x); },
	noVal = function(x) { return undef(x) || typof(x) === 'null' || x == null || isNaN(x); },
	hasVal = function(x) { return !noVal(x); },
	isStr = function(x) { return typof(x) === prims[0]; },
	isNum = function(x) { return typof(x) === prims[1]; },
	isBool = function(x) { return typof(x) === prims[2]; },