Mercurial > public > sg101
annotate core/widgets.py @ 661:15dbe0ccda95
Prevent exceptions when viewing downloads in the admin when the file
doesn't exist on the filesystem. This is usually seen in development
but can also happen in production if the file is missing.
| author | Brian Neal <bgneal@gmail.com> |
|---|---|
| date | Tue, 14 May 2013 21:02:47 -0500 |
| parents | 678a1a2ef55a |
| 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 |
| gremmie@1 | 8 |
| gremmie@1 | 9 |
| gremmie@1 | 10 class AutoCompleteUserInput(forms.TextInput): |
| gremmie@1 | 11 |
| gremmie@1 | 12 def render(self, name, value, attrs=None): |
| bgneal@149 | 13 url = reverse('core-ajax_users') |
| gremmie@1 | 14 output = super(AutoCompleteUserInput, self).render(name, value, attrs) |
| bgneal@186 | 15 return output + mark_safe(u"""\ |
| gremmie@1 | 16 <script type="text/javascript"> |
| bgneal@186 | 17 $(function() { |
| bgneal@186 | 18 var cache = {}; |
| bgneal@186 | 19 var cacheSize = 0; |
| bgneal@186 | 20 $("#id_%s").autocomplete({ |
| bgneal@186 | 21 delay: 400, |
| bgneal@326 | 22 minLength: 1, |
| bgneal@186 | 23 source: function(request, response) { |
| bgneal@186 | 24 if (cache[request.term]) { |
| bgneal@186 | 25 response(cache[request.term]); |
| bgneal@186 | 26 return; |
| bgneal@186 | 27 } |
| bgneal@186 | 28 $.ajax({ |
| bgneal@186 | 29 url: "%s", |
| bgneal@186 | 30 type: "GET", |
| bgneal@186 | 31 data: { |
| bgneal@186 | 32 q: request.term, |
| bgneal@326 | 33 limit: 15 |
| bgneal@186 | 34 }, |
| bgneal@186 | 35 dataType: "json", |
| bgneal@186 | 36 success: function(data, textStatus) { |
| bgneal@326 | 37 if (cacheSize >= 32) { |
| bgneal@186 | 38 cache = {}; |
| bgneal@186 | 39 cacheSize = 0; |
| bgneal@186 | 40 } |
| bgneal@186 | 41 cache[request.term] = data; |
| bgneal@186 | 42 ++cacheSize; |
| bgneal@186 | 43 response(data); |
| bgneal@186 | 44 }, |
| bgneal@186 | 45 error: function(xhr, textStatus, ex) { |
| bgneal@186 | 46 alert('Oops, an error occurred. ' + xhr.statusText + ' - ' + |
| bgneal@186 | 47 xhr.responseText); |
| bgneal@186 | 48 } |
| bgneal@186 | 49 }); |
| bgneal@186 | 50 } |
| bgneal@186 | 51 }); |
| gremmie@1 | 52 }); |
| bgneal@186 | 53 </script>""" % (name, url)) |
| gremmie@1 | 54 |