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autocompletion for django apps

Project Description

autocompletion for django apps

supports the following backends:

  • solr
  • database (using LIKE)
  • redis (pretty experimental)

usage follows typical django registration-y pattern:

from django.db import models

from completion import site


class Blog(models.Model):
    title = models.CharField(max_length=255)
    pub_date = models.DateTimeField()
    content = models.TextField()
    published = models.BooleanField(default=True)

    def get_absolute_url(self):
        return reverse('blog_detail', args=[self.pk])


class BlogProvider(AutocompleteProvider):
    def get_title(self, obj):
        return obj.title

    def get_pub_date(self, obj):
        return datetime.datetime(2010, 1, 1)

    def get_data(self, obj):
        return {'stored_title': obj.title, 'url': obj.get_absolute_url()}

    def get_queryset(self):
        return self.model._default_manager.filter(published=True)


site.register(Blog, BlogProvider)

The Blog model is now ready for autocomplete, but the objects must be stored before they can be returned:

>>> from completion import site
>>> site.store_providers()
>>> site.suggest('tes')
[
    {u'stored_title': u'testing python', u'url': u'/blogs/1/'},
    {u'stored_title': u'testing python code', u'url': u'/blogs/3/'},
    {u'stored_title': u'web testing python', u'url': u'/blogs/2/'},
    {u'stored_title': u'unit tests with python', u'url': u'/blogs/4/'},
]

>>> site.suggest('testing')
[
    {u'stored_title': u'testing python', u'url': u'/blogs/1/'},
    {u'stored_title': u'testing python code', u'url': u'/blogs/3/'},
    {u'stored_title': u'web testing python', u'url': u'/blogs/2/'},
]

Objects can be added or removed at any time from the index:

>>> site.store_object(some_blog_instance)
>>> site.remove_object(some_other_obj)

If you have multiple types of objects in your autocomplete index, you can restrict results to a certian type by passing in “models” to the suggest method:

>>> site.suggest('python', models=[Blog, Photo])

Configuring

The AUTOCOMPLETE_BACKEND setting allows you to specify which backend to use for autocomplete. The options are:

  • completion.backends.db_backend.DatabaseAutocomplete
  • completion.backends.redis_backend.RedisAutocomplete
  • completion.backends.solr_backend.SolrAutocomplete

Configuring Redis

Make sure that you have Redis and redis-py installed.

Add something like the following to your settings file, where the connection string is <host name>:<port>:<database>

AUTOCOMPLETE_REDIS_CONNECTION = 'localhost:6379:0'

Configuring Solr

Make sure that you have Solr and pysolr installed.

Add something like this to your settings file:

AUTOCOMPLETE_SOLR_CONNECTION = 'http://localhost:8080/solr/autocomplete-core/'

Additionally, if you end up using Solr (which I’d recommend!), you will need to ensure you have the correct field definitions in your solr schema. A sample schema can be generated for you automatically, by running:

django-admin.py autocomplete_schema

This will drop a file named schema.xml in your current directory.

Installation

python setup.py install

OR

put the completion folder on your python-path

Release History

Release History

This version
History Node

0.2.1

History Node

0.2.0

History Node

0.1.0

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File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
django-completion-0.2.1.tar.gz (15.9 kB) Copy SHA256 Checksum SHA256 Source Sep 26, 2011

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