django-cms-search

This package provides multilingual search indexes for easy Haystack integration with django CMS.

Requirements

• Django >= 1.3
• django CMS >= 2.1.3
• django-haystack >= 1.2.4, < 2.0 (support for 2.0 will be a priority once it is released)
• django-classy-tags >= 0.3.2

Usage

After installing django-cms-search through your package manager of choice, add cms_search to your INSTALLED_APPS. That’s it.

Warning

Since version 0.5, the HaystackSearchApphook is not registered automatically anymore. If you want do use the default app hook provided by django-cms-search, add this (e.g. in models.py):

from cms_search.cms_app import HaystackSearchApphook
apphook_pool.register(HaystackSearchApphook)

For setting up Haystack, please refer to their documentation.

Customizing the Index

You can customize what parts of a CMSPlugin end up in the index with two class attributes on CMSPluginBase subclasses:

search_fields

a list of field names to index.

search_fulltext

if True, the index renders the plugin and adds the result (sans HTML tags) to the index.

Note

Before version 0.6 of this library, this attributes had to be defined on CMSPlugin. Starting with 0.6, it can also be defined on CMSPluginBase, for cases where one CMSPlugin subclass is used by multiple CMSPluginBase subclasses with different search requirements.

Helpers

django-cms-search provides a couple of useful helpers to deal with multilingual content.

class cms_search.search_helpers.indexes.MultiLanguageIndex

A SearchIndex that dynamically adds translated fields to the search index. An example for when this is useful is the app hook infrastructure from django CMS. When a model’s get_absolute_url() uses a url pattern that is attached to an app hook, the URL varies depending on the language. A usage example:

from haystack import indexes
from cms_search.search_helpers.indexes import MultiLanguageIndex

class NewsIndex(MultiLanguageIndex):
    text = indexes.CharField(document=True, use_template=True)
    title = indexes.CharField(model_attr='title')
    url = indexes.CharField(stored=True)

    def prepare_url(self, obj):
        return obj.get_absolute_url()

    class HaystackTrans:
        fields = ('url', 'title')

Note

• MultiLanguageIndex dynamically creates translated fields. The name of the dynamic fields is a concatenation of the original field name, an underscore and the language code.
• If you define a prepare() method for a translated field, that method will be called multiple times, with changing active language.
• In the above example, you might want to catch NoReverseMatch exceptions if you don’t have activated the app hook for all languages defined in LANGUAGES.
• The model_attr attribute is handled somewhat specially. The index tries to find a field on the model called model_attr + '_' + language_code. If it exists, it is used as the translated value. But it isn’t possible to supply the name of a model method and let the index call it with varying activated languages. Use prepare_myfieldname() for that case.

Note

django CMS monkeypatches django.core.urlresolvers.reverse() to enable language namespaces. To ensure that this monkeypatching happens before haystack autodiscovers your indexes, your search_sites.py should look somewhat like this:

from cms.models import monkeypatch_reverse
import haystack

monkeypatch_reverse()
haystack.autodiscover()

class cms_search.search_helpers.fields.MultiLangTemplateField

A haystack.indexes.CharField subclass that renders the search template in all languages defined in LANGUAGES and concatenates the result.

Note

If you plan to render django CMS placeholders in the template, make sure to pass the needs_request argument to cms_search.search_helpers.fields.MultiLangTemplateField().

{% get_translated_value %} template tag

This template tag is most useful in combination with the MultiLanguageIndex. You can use it while looping through search results, and it will automatically pick up the translated field for the current language or fall back to another available language (in the order defined in LANGUAGES). Example:

{% load cms_search_tags %}

<ul class="search-results">
    {% for result in page.object_list %}
        <li><a href="{% get_translated_value result "url" %}">{% get_translated_value result "title" %}</a></li>
    {% endfor %}
</ul>

Note

If you plan to use this template tag, you have to add cms_search.search_helpers to your INSTALLED_APPS.

Settings

CMS_SEARCH_INDEX_BASE_CLASS

Default: haystack.indexes.SearchIndex

This setting can be used to add custom fields to the search index if the included fields do not suffice. Make sure to provide the full path to your SearchIndex subclass.