annotate gpp/core/widgets.py @ 467:b910cc1460c8
Add the ability to conditionally add model instances to the search index on update. This is not perfect, as some instances should be deleted from the index if they are updated such that they should not be in the index anymore. Will think about and address that later.
| author |
Brian Neal <bgneal@gmail.com> |
| date |
Sun, 24 Jul 2011 18:12:20 +0000 |
| parents |
5453aedf95fd |
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line source |
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1 """
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2 Various useful widgets for the GPP application.
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3 """
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4
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5 from django import forms
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6 from django.utils.safestring import mark_safe
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7 from django.core.urlresolvers import reverse
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8 from django.conf import settings
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9
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10
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11 class AutoCompleteUserInput(forms.TextInput):
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12
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13 def render(self, name, value, attrs=None):
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14 url = reverse('core-ajax_users')
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15 output = super(AutoCompleteUserInput, self).render(name, value, attrs)
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16 return output + mark_safe(u"""\
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17 <script type="text/javascript">
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18 $(function() {
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19 var cache = {};
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20 var cacheSize = 0;
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21 $("#id_%s").autocomplete({
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22 delay: 400,
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23 minLength: 1,
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24 source: function(request, response) {
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25 if (cache[request.term]) {
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26 response(cache[request.term]);
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27 return;
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28 }
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29 $.ajax({
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30 url: "%s",
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31 type: "GET",
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32 data: {
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33 q: request.term,
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34 limit: 15
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35 },
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36 dataType: "json",
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37 success: function(data, textStatus) {
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38 if (cacheSize >= 32) {
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39 cache = {};
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40 cacheSize = 0;
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41 }
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42 cache[request.term] = data;
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43 ++cacheSize;
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44 response(data);
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45 },
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46 error: function(xhr, textStatus, ex) {
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47 alert('Oops, an error occurred. ' + xhr.statusText + ' - ' +
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48 xhr.responseText);
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49 }
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50 });
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51 }
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52 });
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53 });
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54 </script>""" % (name, url))
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55
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