Added search app.

voyager/search/forms.py

@@ -0,0 +1,4 @@
+from django import forms
+
+class SearchForm(forms.Form):
+    query = forms.CharField()

voyager/search/templates/search/base.html

@@ -0,0 +1 @@
+{% extends "base.html" %}

voyager/search/templates/search/index.html

@@ -0,0 +1,32 @@
+{% extends "search/base.html" %}
+
+{% block title %}Search{% if query %}: {{ query }}{% endif %}{% endblock %}
+
+{% block content %}
+  <h1>Search{% if query %}: {{ query }}{% endif %}</h1>
+   <div class="text-content">
+  <form method="get" action=".">
+    <p>
+      {{ form.query.label_tag }}
+      {{ form.query }}
+      <input type="submit" value="Search"/>
+    </p>
+  </form>
+
+  {% if query and not results %}
+  <p>Your search returned no results</p>
+  {% endif %}
+  {% if query and results %}
+  <ol style="list-style:none; padding-left:0;">{% for result in results %}{% if result.thing and result.label %}
+    <li style="margin:5px"><a href="{% url doc-generic %}?uri={{ result.thing }}" style="vertical-align:middle;">
+      <div style="width:100px; display:inline-block; text-align:center; vertical-align:middle">
+      {% if result.depiction %}
+        <img src="{% url resized-image %}?url={{ result.depiction }}&amp;width=100&amp;height=100" alt=""/>
+      {% endif %}
+      </div>
+      {{ result.label }}
+    </a></li>
+  {% endif %}{% endfor %}</ol>
+  {% endif %}
+  </div>
+{% endblock %}

voyager/search/urls.py

@@ -0,0 +1,7 @@
+from django.conf.urls.defaults import patterns, url
+
+from . import views
+
+urlpatterns = patterns('',
+    url(r'^$', views.IndexView.as_view(), name='index'),
+)

voyager/search/views.py

@@ -0,0 +1,48 @@
+import rdflib
+
+from django_conneg.views import HTMLView, JSONView
+from humfrey.utils.views import EndpointView
+
+from . import forms
+
+class IndexView(HTMLView, JSONView, EndpointView):
+    _json_indent = 2
+
+    query = """\
+        SELECT ?thing
+               (SAMPLE(?literal_) AS ?literal)
+               (SAMPLE(?score_) AS ?score)
+               (SAMPLE(?label_) AS ?label)
+               (SAMPLE(?depiction_) AS ?depiction) WHERE {
+          {
+            SELECT DISTINCT ?thing ?literal_ ?score_ WHERE {
+              (?literal_ ?score_) pf:textMatch %s .
+              ?thing ?x ?literal_
+            } LIMIT 200
+          } .
+          OPTIONAL { ?thing rdfs:label ?label_ } .
+          OPTIONAL { ?thing (crm:P138i_has_representation|^crm:P138_represents)+ ?depiction_ } .
+          OPTIONAL { ?thing a crm:E38_Image . ?thing crm:empty{0} ?depiction_ } .
+        } GROUP BY ?thing"""
+
+    def simplify(self, value):
+        if isinstance(value, rdflib.Literal):
+            return unicode(value)
+        elif isinstance(value, rdflib.URIRef):
+            return unicode(value)
+        elif isinstance(value, rdflib.BNode):
+            return None
+        else:
+            return super(IndexView, self).simplify(value)
+
+    def get(self, request):
+        form = forms.SearchForm(request.GET or None)
+        context = {'form': form,
+                   'results': None,
+                   'query': request.GET.get('query')}
+
+        if form.is_valid():
+            query = self.query % rdflib.Literal(form.cleaned_data['query']).n3()
+            context['results'] = self.endpoint.query(query)
+
+        return self.render(request, context, 'search/index')

voyager/settings.py

@@ -15,6 +15,7 @@
 INSTALLED_APPS += (
     'voyager.core',
     'voyager.places',
+    'voyager.search',
     'django_hosts',
 )
 

voyager/urls/data.py

@@ -18,6 +18,8 @@
     url(r'^doc.+$', desc_views.DocView.as_view(), name='doc'),
     url(r'^doc/$', desc_views.DocView.as_view(), name='doc-generic'),
     url(r'^desc/$', desc_views.DescView.as_view(), name='desc'),
+
+    url(r'^search/$', include('voyager.search.urls', 'search')),
 
     url(r'^objects/$', core_views.ObjectCategoryView.as_view(), name='claros-objects'),
     url(r'^objects/(?P<ptype>[a-z-]+)/$', core_views.ObjectView.as_view(), name='claros-objects-detail'),