kb: add indexing/searching

requirements.txt

@@ -2,3 +2,4 @@ Django>=1.7
 gadjo
 django-select2
 django-ckeditor
+django-haystack

setup.py

@@ -101,6 +101,7 @@ setup(
         'gadjo',
         'django-select2',
         'django-ckeditor',
+        'django-haystack',
         ],
     zip_safe=False,
     cmdclass={

welco/kb/search_indexes.py

@@ -0,0 +1,34 @@
+# welco - multichannel request processing
+# Copyright (C) 2015  Entr'ouvert
+#
+# This program is free software: you can redistribute it and/or modify it
+# under the terms of the GNU Affero General Public License as published
+# by the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+from HTMLParser import HTMLParser
+
+from django.utils.html import strip_tags
+
+from haystack import indexes
+
+from .models import Page
+
+class PageIndex(indexes.SearchIndex, indexes.Indexable):
+    title = indexes.CharField(model_attr='title', boost=1.5)
+    text = indexes.CharField(document=True, model_attr='content')
+    slug = indexes.CharField(model_attr='slug', indexed=False)
+
+    def get_model(self):
+        return Page
+
+    def prepare_text(self, obj):
+        return HTMLParser().unescape(strip_tags(obj.content))

welco/kb/templates/kb/page_list.html

@@ -9,6 +9,11 @@
 {% block content %}
 
 {% if object_list %}
+<form id="kb-search" action="search/">
+  {{ form }}
+  <button>{% trans 'Search' %}</button>
+</form>
+
 <div class="objects-list">
  {% for page in object_list %}
  <div>

welco/kb/templates/kb/page_search.html

@@ -0,0 +1,25 @@
+{% extends "kb/base.html" %}
+{% load i18n %}
+
+{% block appbar %}
+<h2>{% trans 'Knowledge Base' %}</h2>
+{% endblock %}
+
+{% block content %}
+<form id="kb-search">
+  {{ form }}
+  <button>{% trans 'Search' %}</button>
+</form>
+
+{% if object_list %}
+<div class="objects-list">
+ {% for page in object_list %}
+ <div>
+ <a href="{% url 'kb-page-view' slug=page.slug %}">{{ page.title }}</a>
+ </div>
+ {% endfor %}
+</div>
+{% endif %}
+
+
+{% endblock %}

welco/kb/views.py

@@ -18,12 +18,20 @@ from django.core.urlresolvers import reverse_lazy
 from django.views.generic import (DetailView, CreateView, UpdateView,
         ListView, DeleteView)
 
+from haystack.forms import SearchForm
+from haystack.generic_views import SearchView
+
 from .models import Page
 
 
 class PageListView(ListView):
     model = Page
 
+    def get_context_data(self, **kwargs):
+        context = super(PageListView, self).get_context_data(**kwargs)
+        context['form'] = SearchForm()
+        return context
+
 page_list = PageListView.as_view()
 
 
@@ -50,3 +58,10 @@ class PageDeleteView(DeleteView):
     success_url = reverse_lazy('kb-home')
 
 page_delete = PageDeleteView.as_view()
+
+
+class PageSearchView(SearchView):
+    template_name = 'kb/page_search.html'
+    form_class = SearchForm
+
+page_search = PageSearchView.as_view()

welco/settings.py

@@ -40,6 +40,7 @@ INSTALLED_APPS = (
     'django.contrib.staticfiles',
     'django_select2',
     'ckeditor',
+    'haystack',
     'welco.sources.mail',
     'welco.qualif',
     'welco.kb',
@@ -148,6 +149,16 @@ MELLON_USERNAME_TEMPLATE = '{attributes[name_id_content]}'
 
 MELLON_IDENTITY_PROVIDERS = []
 
+
+# indexing
+HAYSTACK_CONNECTIONS = {
+    'default': {
+        'ENGINE': 'haystack.backends.whoosh_backend.WhooshEngine',
+        'PATH': os.path.join(BASE_DIR, 'whoosh_index'),
+    },
+}
+
+
 local_settings_file = os.environ.get('WELCO_SETTINGS_FILE',
         os.path.join(os.path.dirname(__file__), 'local_settings.py'))
 if os.path.exists(local_settings_file):

welco/static/css/style.css

@@ -140,4 +140,6 @@ div.objects-list > div.level-1 {
 	margin-left: 25px;
 }
 
-
+form#kb-search {
+	margin-bottom: 2em;
+}

welco/urls.py

@@ -26,6 +26,7 @@ urlpatterns = patterns('',
 
     url(r'^kb/$', 'welco.kb.views.page_list', name='kb-home'),
     url(r'^kb/add/$', 'welco.kb.views.page_add', name='kb-page-add'),
+    url(r'^kb/search/$', 'welco.kb.views.page_search', name='kb-page-search'),
     url(r'^kb/(?P<slug>[\w-]+)/$', 'welco.kb.views.page_detail', name='kb-page-view'),
     url(r'^kb/(?P<slug>[\w-]+)/edit$', 'welco.kb.views.page_edit', name='kb-page-edit'),
     url(r'^kb/(?P<slug>[\w-]+)/delete$', 'welco.kb.views.page_delete', name='kb-page-delete'),