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annotate gpp/core/widgets.py @ 505:a5d11471d031

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Refactor the logic in the rate limiter decorator. Check to see if the request was ajax, as the ajax view always returns 200. Have to decode the JSON response to see if an error occurred or not.
author Brian Neal <bgneal@gmail.com>
date Sat, 03 Dec 2011 19:13:38 +0000
parents 5453aedf95fd
children
rev   line source
gremmie@1 1 """
gremmie@1 2 Various useful widgets for the GPP application.
gremmie@1 3 """
gremmie@1 4
gremmie@1 5 from django import forms
gremmie@1 6 from django.utils.safestring import mark_safe
gremmie@1 7 from django.core.urlresolvers import reverse
bgneal@6 8 from django.conf import settings
gremmie@1 9
gremmie@1 10
gremmie@1 11 class AutoCompleteUserInput(forms.TextInput):
gremmie@1 12
gremmie@1 13 def render(self, name, value, attrs=None):
bgneal@149 14 url = reverse('core-ajax_users')
gremmie@1 15 output = super(AutoCompleteUserInput, self).render(name, value, attrs)
bgneal@186 16 return output + mark_safe(u"""\
gremmie@1 17 <script type="text/javascript">
bgneal@186 18 $(function() {
bgneal@186 19 var cache = {};
bgneal@186 20 var cacheSize = 0;
bgneal@186 21 $("#id_%s").autocomplete({
bgneal@186 22 delay: 400,
bgneal@326 23 minLength: 1,
bgneal@186 24 source: function(request, response) {
bgneal@186 25 if (cache[request.term]) {
bgneal@186 26 response(cache[request.term]);
bgneal@186 27 return;
bgneal@186 28 }
bgneal@186 29 $.ajax({
bgneal@186 30 url: "%s",
bgneal@186 31 type: "GET",
bgneal@186 32 data: {
bgneal@186 33 q: request.term,
bgneal@326 34 limit: 15
bgneal@186 35 },
bgneal@186 36 dataType: "json",
bgneal@186 37 success: function(data, textStatus) {
bgneal@326 38 if (cacheSize >= 32) {
bgneal@186 39 cache = {};
bgneal@186 40 cacheSize = 0;
bgneal@186 41 }
bgneal@186 42 cache[request.term] = data;
bgneal@186 43 ++cacheSize;
bgneal@186 44 response(data);
bgneal@186 45 },
bgneal@186 46 error: function(xhr, textStatus, ex) {
bgneal@186 47 alert('Oops, an error occurred. ' + xhr.statusText + ' - ' +
bgneal@186 48 xhr.responseText);
bgneal@186 49 }
bgneal@186 50 });
bgneal@186 51 }
bgneal@186 52 });
gremmie@1 53 });
bgneal@186 54 </script>""" % (name, url))
gremmie@1 55