I'm following a tutorial for Solr django-haystack that uses ajax to return results when a letter is typed. I believe the term for this is called a typehead. Prior to using haystack it worked fine this is the code
def search_title(request):
if request.method == "GET":
search_text = request.GET['search_text']
else:
search_text = ''
posts = Post.objects.filter(
Q(title__contains=search_text) |
Q(content__contains=search_text)
)
context = {
"posts": posts
}
context.update(csrf(request))
return render(request, "posts/ajax_search.html", context)
I then switched it to use haystack like this
def search_title(request):
posts = SearchQuerySet().autocomplete(content_auto=request.GET.get('search_text', ''))
context = {
"posts": posts
}
context.update(csrf(request))
return render(request, "posts/ajax_search.html", context)
my search_indexes.py
from haystack import indexes
from .models import Post
class PostIndex(indexes.SearchIndex, indexes.Indexable):
text = indexes.CharField(document=True, use_template=True)
title = indexes.CharField(model_attr='title')
publish = indexes.DateTimeField(model_attr='publish')
content_auto = indexes.EdgeNgramField(model_attr='title')
def get_model(self):
return Post
def index_queryset(self, using=None):
"""Used when the entire index for model is updated."""
return self.get_model().objects.all()
my post model
class Post(models.Model):
user = models.ForeignKey(settings.AUTH_USER_MODEL, default=1)
title = models.CharField(max_length=120)
slug = models.SlugField(max_length=200, unique=True)
image = models.ImageField(upload_to=upload_location,
null=True,
blank=True,
width_field="width_field",
height_field="height_field")
height_field = models.IntegerField(default=0)
width_field = models.IntegerField(default=0)
content = models.TextField()
draft = models.BooleanField(default=False)
publish = models.DateField(auto_now=False, auto_now_add=False)
timestamp = models.DateTimeField(auto_now=False, auto_now_add=True)
updated = models.DateTimeField(auto_now=True, auto_now_add=False)
tags = models.ManyToManyField(Tag)
objects = PostManager()
def __str__(self):
return self.title
def get_absolute_url(self):
return reverse("posts:detail", kwargs={"slug": self.slug})
my post_text.txt
{{ object.title }}
{{ object.content }}
and I also changed my ajax_search.html from this
{% if posts.count > 0 %}
{% for post in posts %}
<li><a href="{{ post.get_absolute_url }}" class="list-group-item results">{{ post.title }}</a></li>
{% endfor %}
{% else %}
<li class="list-group-item"> None to show</li>
{% endif %}
to the following
{% if posts.count > 0 %}
{% for post in posts %}
<li><a href="{{ post.object.get_absolute_url }}" class="list-group-item results">{{ post.object.title }}</a></li>
{% endfor %}
{% else %}
<li class="list-group-item"> None to show</li>
{% endif %}
I dont't think the following code matters, But I also don't know what is exactly wrong so heres my ajax.js
$(function(){
$('#search').keyup(function() {
$.ajax({
type: "GET",
url: "/posts/search/",
data: {
'search_text': $('#search').val(),
'csrfmiddlewaretoken': $("input[name=csrfmiddlewaretoken]").val()
},
success: searchSuccess,
dataType: 'html'
});
});
});
function searchSuccess(data, textStatus, jqXHR)
{
$('#search-results').html(data);
my post/urls.py
from django.conf.urls import url, include
from .views import post_create, post_detail, post_list, post_update, post_delete, post_search, tag_list, search_title
urlpatterns = [
url(r'^$', post_list, name='list'),
url(r'^create/$', post_create, name='create'),
url(r'^search/$', search_title),
url(r'^search_results/$', post_search, name='search-page'),
url(r'^tag/(?P<slug>[\w-]+)/$', tag_list, name="tag_list"),
url(r'^(?P<slug>[\w-]+)/$', post_detail, name='detail'),
url(r'^(?P<slug>[\w-]+)/edit/$', post_update, name='update'),
url(r'^(?P<id>\d+)/delete/$', post_delete, name='delete'),
# url(r'^search/', include('haystack.urls')),
]
versions of everything
Django==1.9.2
django-haystack==2.4.1
pysolr==3.4.0
python 3.5
Solr 4.10.2
any guidance in the right direction is welcome.
EDIT this is the error message I get in my console
GET http://localhost:8000/posts/search_f/?search_text= 500 (Internal Server Error) jquery.min.js:4
send @ jquery.min.js:4
n.extend.ajax @ jquery.min.js:4
(anonymous function) @ ajax.js:5
n.event.dispatch @ jquery.min.js:3
r.handle @ jquery.min.js:3
and in my terminal (this error occurs when I press delete in the search field and there are no characters in it)
Internal Server Error: /posts/search_f/
Traceback (most recent call last):
File "/Users/ray/Desktop/uply/my-server/lib/python3.5/site- packages/django/core/handlers/base.py", line 149, in get_response
response = self.process_exception_by_middleware(e, request)
File "/Users/ray/Desktop/uply/my-server/lib/python3.5/site- packages/django/core/handlers/base.py", line 147, in get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/Users/ray/Desktop/uply/my-server/src/posts/views.py", line 186, in search_title
posts = SearchQuerySet().autocomplete(content_auto=request.GET.get('search_text', ''))
File "/Users/ray/Desktop/uply/my-server/lib/python3.5/site-packages/haystack/query.py", line 471, in autocomplete
return clone.filter(six.moves.reduce(operator.__and__, query_bits))
TypeError: reduce() of empty sequence with no initial value
EDIT
now I'm getting
Model could not be found for SearchResult '<SearchResult: posts.post (pk='10')>'.
[25/Feb/2016 12:13:18] "GET /posts/search/?search_text=lil HTTP/1.1" 200 62
