Usando haystack para hacer búsquedas normales y por fechas, y filtrando por tres campos.

base_search.html

<!--Contenido-->
        <main>
            <div class="row">
                <!-- Left Wrapper Seccion listas -->
                <div class="show-for-large-up small-1 large-3 columns left-wrapper">
                    <div class="tabs-content">
                    {% include 'search/search_menu.html' %}
                    </div>
                </div>
                <!--Contenido -->
                <div class="small-6 large-9 columns right-content">
                    <!-- Noticia-->
                    {% block newscontent %}

                    {% endblock %}
                </div>
            </div>
        </main>

form.py

class DateRangeSearchForm(SearchForm):
    i = forms.DateField(required=False, label='Búsqueda',
                        widget=forms.DateInput(attrs={'type': 'date','class':'datepicker', 'placeholder':'2014-08-01',}))
    f = forms.DateField(required=False, label='Búsqueda',
                        widget=forms.DateInput(attrs={'type': 'date','class':'datepicker', 'placeholder':'2016-01-01',}))
                        
    def search(self):
        # First, store the SearchQuerySet received from other processing.
        sqs = super(DateRangeSearchForm, self).search()

        if not self.is_valid():
            return self.no_query_found()

        # Check to see if a start_date was chosen.
        if self.cleaned_data['i']:
            sqs = sqs.filter(created_date__gte=self.cleaned_data['i'])

        # Check to see if an end_date was chosen.
        if self.cleaned_data['f']:
            sqs = sqs.filter(created_date__lte=self.cleaned_data['f'])
	
        return sqs        

class CustomFacetedSearchForm(DateRangeSearchForm):
    q = forms.CharField(required=False, label='Búsqueda',
                        widget=forms.TextInput(attrs={'type': 'search', 'class':'gn-search', 'placeholder':'Busca y encontrarás!',}))


    def __init__(self, *args, **kwargs):
        self.selected_facets = kwargs.pop("selected_facets", [])
        super(CustomFacetedSearchForm, self).__init__(*args, **kwargs)

    def search(self):
        sqs = super(CustomFacetedSearchForm, self).search()

        # We need to process each facet to ensure that the field name and the
        # value are quoted correctly and separately:
        for facet in self.selected_facets:
            if ":" not in facet:
                continue

            field, value = facet.split(":", 1)

            if value:
                sqs = sqs.narrow(u'%s:"%s"' % (field, sqs.query.clean(value)))

        return sqs

models.py

class New(models.Model):
    author = models.ForeignKey(User, verbose_name='Autor', related_name='news')
    content = RichTextField(verbose_name='Contenido')
    created_date = models.DateTimeField(auto_now_add=True, verbose_name='Fecha y Hora')
    is_published = models.BooleanField(verbose_name='Publicada', default=False,) #Nueva, para verificar si se publica o no
    keywords = models.ManyToManyField(KeyWord, blank=True, verbose_name='Palabras Clave', related_name='news')
    place = models.CharField(max_length=255, verbose_name='Lugar')
    source = models.URLField(verbose_name='Fuente', blank=True)
    subtopic = models.ForeignKey(Subtopic, verbose_name='Subtema', related_name='news') #Filtramos por Opinion para sacar todas las columnas
    times_viewed = models.PositiveIntegerField(default=0, editable=False, verbose_name='Veces Vista' )
    title = models.CharField(verbose_name='Título', max_length=255, unique=True)
    slug =  models.SlugField(verbose_name='Slug', max_length=100, unique=True)
    topic = models.ForeignKey(Topic, verbose_name='Tema', related_name='news', )

search.html

{% extends 'base_search.html'%}
{% load thumbnail %}
{% load static from staticfiles %}
{% load news %}
{% load highlight %}
{% load more_like_this %}
{% block titlepage %} Búsquedas  {% endblock %}
{% block newsa %}{{ meta_author }}{% endblock %}
{% block newsd %} Búsquedas en Tiempo Turco {% endblock %}
{% block newsk %} búsqueda,buscar,{{ meta_today_keys }}{% endblock %}
{% load i18n %}
{% block slidermenu%}
<li id="slider" class="show-for-medium-up news-slider">
    <ul id="ulslider" class="example-orbit-content" data-orbit data-options="
        pause_on_hover:false;
        slide_number_text:de;
        timer_show_progress_bar: false;
        bullets: false;
        slide_number: false">
        {% for new in lnews %}
        <li data-orbit-slide="headline-{{forloop.counter}}">
            <div>
                <a class="news-title" href="{% url 'NewsDefaultView' new.created_date|date:'Y' new.created_date|date:'m' new.created_date|date:'d' new.slug %}">
                    <time datetime="{{ new.created_date|date:'Y-m-d H:i:s' }}">{{ new.created_date|date:'H:i:s' }}</time>
                    <h2>{{new.title|truncatewords:'8'}}</h2>
                </a>
                <a class="share-popup gn-icon-other nopadding gn-icon-facebook"  href="http://www.facebook.com/sharer.php?u={{ meta_url }}{% url 'NewsDefaultView' new.created_date|date:'Y' new.created_date|date:'m' new.created_date|date:'d' new.slug %}&t={{ news.title }}" target="_blank"></a>
                <a class="share-popup gn-icon-other nopadding gn-icon-twitter" href="http://twitter.com/share?url={{ meta_url }}{% url 'NewsDefaultView' new.created_date|date:'Y' new.created_date|date:'m' new.created_date|date:'d' new.slug %}&t={{ new.title }}&text={{ new.title }}" target="_blank"></a>
            </div>
        </li>
        {% empty %}
        <p>No hay noticias disponibles.</p>
        {% endfor %}
    </ul>
</li>
{% endblock %}
{% block newscontent %}
<form class="row articles-news" style="border-bottom: none">
    <div class="row" style="margin: 0.625rem 0;">
        <div class="large-4 columns"><h1>Búsqueda</h1></div>
        <div class="large-8 columns" method="get" action=".">
            <div class="row search-bar">
               <div class="gn-search-item">
                   <div class="large-7 columns">
                       {{ form.q }}
                       <a class="gn-icon gn-icon-search"><span>Busca y encontrarás!</span></a>
                   </div>
                   <div class="large-3 columns">
                       {{ form.i }}
                       {{ form.f }}
                       {#<a class="gn-icon gn-icon-search"><span>Fecha!</span></a>#}
                   </div>
                   <div class="large-2 columns"><input id="_search" type="submit" value="Buscar" class="button round" /></div>
               </div>
            </div>
        </div>
    </div>
{% if query %}
    <h2>Resultados</h2><h3>{{ page.start_index }} - {{ page.end_index }} de {{ page.paginator.count }}.</h3>
    <div class="row">
        {% for result in page.object_list %}
        <article>
            <header style="border-bottom: none">
                <!-- Cabezera del articulo -->
                <div class="row">
                    <div class="small-8 large-12 columns">
                        <a href="{{ result.object.get_absolute_url }}">
                            <h1 style="font-size: 1.5rem; display: inline">{{ result.object.title }}</h1>
                        </a>
                        <time datetime="{{ result.object.created_date|date:'Y-m-d H:i:s' }}">{{ result.object.created_date|date:'h:i a, l j \d\e F \d\e Y' }}</time>
                    </div>
                </div>
            </header>
            <div class="row">
                <div class="small-6 large-12 columns">
                    <section class="row">
                        <p class="review" style="width: 95%">{% highlight result.object.content with query max_length 500 %}<a href="{{ result.object.get_absolute_url }}">Leer mas...</a></p>
                    </section>
                </div>
            </div>
            <footer  class="row">
            </footer>
        </article>
        {% empty %}
        <p> No se encontraron resultados para tu búsqueda.</p>
        {% endfor %}
    </div>
    {% if page.has_previous or page.has_next %}
    <div class="pagination-centered">
        <ul class="pagination">
            {% if page.has_previous %}
            <li class="arrow"><a href="?q={{ query }}&amp;page={{ page.previous_page_number }}">&laquo;</a></li>
            {% else %}
            <li class="arrow unavailable"><a href="">&laquo;</a></li>
            {% endif %}
            {% for page_num in paginator.page_range %}
                <li {% if page_num == page.number %} class="current" {% endif %} ><a href="?q={{ query }}&amp;page={{ page_num }}">{{ page_num }}</a></li>
            {% endfor %}
            {% if page.has_next %}
            <li class="arrow"><a href="?q={{ query }}&amp;page={{ page.next_page_number }}">&raquo;</a></li>
            {% else %}
            <li class="arrow unavailable"><a href="">&raquo;</a></li>
            {% endif %}
        </ul>
    </div>
    {% endif %}    
{% else %}
    <p>No hay resultados para tu búsqueda, lo sentimos.</p>    
{% endif %}
</form>
{% endblock %}
{% block jsplugins %}
<script src="{% static 'tiempo_turco/js/jquery-ui.min.js' %}"></script>
<script>
    $(window).on('load',function(){
        if(!Modernizr.inputtypes.date) {
            $(".datepicker").datepicker({
                inline: true,
                showOtherMonths: true,
                dateFormat: 'yy-mm-dd',
                closeText: 'Cerrar',
                prevText: '&#x3c;Ant',
                nextText: 'Sig&#x3e;',
                currentText: 'Hoy',
                monthNames: ['Enero','Febrero','Marzo','Abril','Mayo','Junio',
                'Julio','Agosto','Septiembre','Octubre','Noviembre','Diciembre'],
                monthNamesShort: ['Ene','Feb','Mar','Abr','May','Jun',
                'Jul','Ago','Sep','Oct','Nov','Dic'],
                dayNames: ['Domingo','Lunes','Martes','Mi&eacute;rcoles','Jueves','Viernes','S&aacute;bado'],
                dayNamesShort: ['Dom','Lun','Mar','Mi&eacute;','Juv','Vie','S&aacute;b'],
                dayNamesMin: ['Do','Lu','Ma','Mi','Ju','Vi','S&aacute;'],
                weekHeader: 'Sm',
                firstDay: 1,
                isRTL: false,
                showMonthAfterYear: false,
                yearSuffix: '',
                changeMonth: true,
                changeYear: true
            });
        }
    });
</script>
{% endblock %}

search_indexes.py

import datetime
from haystack import indexes
from .models import New

class NewsIndex(indexes.SearchIndex, indexes.Indexable):
    text = indexes.CharField(document=True, use_template=True )
    author = indexes.CharField(model_attr='author', faceted=True)
    content = indexes.CharField(model_attr='content')
    created_date = indexes.DateTimeField(model_attr='created_date', faceted=True)
    place = indexes.CharField(model_attr='place',faceted=True)
    title = indexes.CharField(model_attr='title')
    times_viewed = indexes.IntegerField(model_attr='times_viewed')

    def get_model(self):
        return New

    def index_queryset(self, using=None):
        return self.get_model().objects.filter(created_date__lte=datetime.datetime.now())

search_menu.html

{% load news %}
{% if query %}
<h2 style="margin: 0.625rem">Ordenar</h2>
<form id="id_sorts" method="get" action=".">
    <select data-name="Ordenar" name="sort">
        <option value="v">Relevancia</option>
        <option value="t">Título</option>
        <option value="d">Fecha</option>
    </select>
    <input id="_sorts" type="submit" value="Ordenar" class="button round right large-4" style="padding: 0.7rem 1.2rem 0.6rem 1.2rem" />
</form>
<ul class="sorting">
  <li><a href="?{% query_update 'sort' 'v' %}">Relevancia</a></li>
  <li><a href="?{% query_update 'sort' 't' %}">Título</a></li>
  <li><a href="?{% query_update 'sort' 'd' %}">Fecha</a></li>
</ul>

<h2 style="margin: 0.625rem">Filtrar</h2>
<form id="id_facets" method="get" action=".">
    <!-- Begin faceting. -->
    <div style="margin-right: 0.625rem">
        <div>
        {% if facets.fields.author %}
            <h3>Autores</h3>
            {# Provide only the top 5 authors #}
            <select data-name="Author">
                <option value="">Autor</option>
                <option value="">---</option>
            {% for author in facets.fields.author|slice:":5" %}
                <option value="{{ author.0 }} ({{ author.1 }})" ><a href="{{ request.get_full_path }}&amp;selected_facets=author_exact:{{ author.0|urlencode }}">{{ author.0 }}</a> ({{ author.1 }})</option>
            {% endfor %}
            </select>
        {% else %}
            <p>No hay autores.</p>
        {% endif %}
        </div>
        <div>
        {% if facets.fields.place %}
            <h3>Lugares</h3>
            {# Provide only the top 5 authors #}
            <select data-name="Place" name="{{ request.get_full_path }}&amp;selected_facets=place_exact:">
                <option value="">Lugar</option>
                <option value="">---</option>
                {% for place in facets.fields.place %}
                <option data-name="{{ request.get_full_path }}&amp;selected_facets=place_exact:{{ place.0|urlencode }}" value="{{ place.0|urlencode }}" ><a href="{{ request.get_full_path }}&amp;selected_facets=place_exact:{{ place.0|urlencode }}">{{ place.0 }}</a> ({{ place.1 }})</option>
                {% endfor %}
            </select>
        {% else %}
            <p>No hay Lugares.</p>
        {% endif %}
            <dl>
                {% if facets.fields.place %}
                    <dt>Author</dt>
                    {# Provide only the top 5 authors #}
                    {% for place in facets.fields.place|slice:":5" %}
                        <dd><a href="{{ request.get_full_path }}&amp;selected_facets=place_exact:{{ place.0|urlencode }}">{{ place.0 }}</a> ({{ place.1 }})</dd>
                    {% endfor %}
                {% else %}
                    <p>No author facets.</p>
                {% endif %}
            </dl>
        </div>
        <div>
        {% if facets.dates.created_date %}
            <h3>Fecha</h3>
            {# Provide only the top 5 authors #}
            <select data-name="Date">
                <option value="">Fecha</option>
                <option value="">---</option>
                {% for created_date in facets.dates.created_date|slice:":5" %}
                <option data-name="" value="{{ created_date.0 }} ({{ created_date.1 }})" ><a href="{{ request.get_full_path }}&amp;selected_facets=created_date_exact:{{ created_date.0|urlencode }}">{{ created_date.0 }}</a> ({{ created_date.1 }})</option>
                {% endfor %}
            </select>
        {% else %}
            <p>No hay Fechas concordantes.</p>
        {% endif %}
        </div>           
    </div>
    <input id="_facets" type="submit" value="Filtrar" class="button round right large-4" style="padding: 0.7rem 1.2rem 0.6rem 1.2rem" />
    <!-- End faceting -->
</form>
{% endif %}

url.py

today = datetime.date.today()
sqs = SearchQuerySet().facet('place').facet('author').date_facet('created_date', start_date=datetime.date(2014, 4, 20), end_date=today, gap_by='month').order_by('-created_date')
urlpatterns += patterns('haystack.views',
    url(r'^search/', search_view_factory(
        view_class=SearchNewsView,
        searchqueryset=sqs,
        form_class=CustomFacetedSearchForm
    ), name='haystack_search'),
)

views.py

class SearchNewsView(FacetedSearchView):
    template = 'search/search.html'

    def extra_context(self):
        today = datetime.date.today()
        extra = super(SearchNewsView, self).extra_context()
        extra['lnews'] = New.objects.filter(is_published=True).all()[:10]    #Mas noticias
        return extra
        
    def get_query(self):
        #searchqueryset = super(SearchNewsView, self).get_results()
        #searchqueryset = searchqueryset.models(New)

        sort = self.request.GET.get('sort')
        print(sort)
        if sort in sort_by.keys():
           #searchqueryset = searchqueryset.order_by('%s' % sort_by[sort])
            print('%s' % sort_by[sort])
            return New.objects.filter().order_by('%s' % sort_by[sort])
        else:
           #searchqueryset = searchqueryset.order_by('-created_date')
            return New.objects.filter().order_by('-creation')
        
        #return searchqueryset