data-ajax-url
fallback
This fixes the fallback path for the `data-ajax-url` attribute on elements. As this attribute was previously supported in Select2, the attribute has been migrated to the new, nested format of the url and triggers a deprecation warning when it is used. Because of a fix to the `data-*` attribute parsing made in a9f6d64 that allowed for nested attributes to be parsed correctly in modern browsers under jQuery 1.x, the deprecation warning would be triggered but the attribute would no longer actually be used. This also fixes some of the `.data` calls to use the camel cased version of the key instead of the dashed version, which is the preferred key and will be enforced in future versions of jQuery as the only way to access data attributes. Now in situations where the `dataset` attribute is used by Select2, it combines the results of both `$e.data()` and `e.dataset` when generating the object containing all of the options. This will the `dataset` fix to still be used, while also still relying on jQuery to do additional parsing on any options that it can. The `dataset` fix is now only used on jQuery 1.x, as that is the only version of jQuery affected by the dash issue. This is done using version number parsing on the `$.fn.jquery` property that is defined by jQuery. As this property is not defined in Zepto and many other jQuery compatible checks, we only include the fallback if the property is available. This assumes that any jQuery compatible libraries that are in use will not include the same dash issue, which we believe is a safe assumption given that it did not match the HTML `dataset` specification. This also adds a few tests to ensure that the deprecated attributes still continue to function. This closes https://github.com/select2/select2/issues/3086.
Select2
Select2 is a jQuery-based replacement for select boxes. It supports searching, remote data sets, and pagination of results.
To get started, checkout examples and documentation at https://select2.github.io/
Use cases
- Enhancing native selects with search.
- Enhancing native selects with a better multi-select interface.
- Loading data from JavaScript: easily load items via AJAX and have them searchable.
- Nesting optgroups: native selects only support one level of nesting. Select2 does not have this restriction.
- Tagging: ability to add new items on the fly.
- Working with large, remote datasets: ability to partially load a dataset based on the search term.
- Paging of large datasets: easy support for loading more pages when the results are scrolled to the end.
- Templating: support for custom rendering of results and selections.
Browser compatibility
- IE 8+
- Chrome 8+
- Firefox 10+
- Safari 3+
- Opera 10.6+
Usage
You can source Select2 directly from a CDN like JSDliver or CDNJS, download it from this GitHub repo, or use one of the integrations below.
Integrations
- Wicket-Select2 (Java / Apache Wicket)
- select2-rails (Ruby on Rails)
- AngularUI (AngularJS)
- Django
- Symfony
- Symfony2
- Bootstrap 2 and Bootstrap 3 (CSS skins)
- Meteor (Bootstrap 3 skin)
- Meteor
- Yii 2.x
- Yii 1.x
- AtmosphereJS
Internationalization (i18n)
Select2 supports multiple languages by simply including the right language JS
file (dist/js/i18n/it.js
, dist/js/i18n/nl.js
, etc.) after
dist/js/select2.js
.
Missing a language? Just copy src/js/select2/i18n/en.js
, translate it, and
make a pull request back to Select2 here on GitHub.
Documentation
The documentation for Select2 is available
through GitHub Pages and is located within this repository
in the docs
folder.
Community
You can find out about the different ways to get in touch with the Select2 community at the Select2 community page.
Copyright and license
The license is available within the repository in the LICENSE file.