jstar198

Adds an extra panel to the post/page edit page which allows you to enter the META keywords & description for that page in each enabled language. Also adds an optional browser title override (does not affect post title).
Note 1: This plugin requires that <a href="http://www.qianqin.de/qtranslate/" rel="nofollow ugc">qTranslate</a> is installed and activated.
Note 2: This plugin does not work well with <a href="https://wordpress.org/extend/plugins/all-in-one-seo-pack/" rel="ugc">All In One SEO</a> and potentially any other plugin or theme which tries to set your META tags.
<h4>Thanks</h4>
I’d like to thank the following people for their contributions (in chronological order):
<ul>
<li>Victor Berchet — Help with initial localisation; French translation</li>
<li>Benoit Gauthier — autosave bug fix</li>
<li>Filippo Pisano — Italian translation</li>
<li><a href="http://pc.de/" rel="nofollow ugc">Marcis G.</a> — Belorussian translation</li>
<li>Almaz — Russian translation</li>
<li><a href="http://www.heftrucknederland.nl/" rel="nofollow ugc">Renate Kramer</a> — German translation</li>
<li><a href="http://wpwebshop.com/blog/" rel="nofollow ugc">Rene</a> — Dutch translation</li>
<li>banane — Bugs with WordPress 3 compatability.</li>
<li>Alexander of <a href="http://webhostinggeeks.com/" rel="nofollow ugc">Web Hosting Geeks</a> — Romanian translation</li>
<li>Branco Radenovich of <a href="http://webhostingw.com/" rel="nofollow ugc">Web Hosting Watch</a> — Slovakian translation</li>
</ul>

qTranslate META

For users of qTranslate, allows you to set multi-lingual META tags and a <title> override for your posts and pages.

jmarceli

CMB2-qTranslate is WordPress plugin for CMB2 and qTranslate X integration. Adds language switch buttons above selected CMB2 fields to make content translatable. 
For updated docs please refer to the Github project page <a href="https://github.com/jmarceli/integration-cmb2-qtranslate" rel="nofollow ugc">https://github.com/jmarceli/integration-cmb2-qtranslate</a>.
Supported CMB2 field types:
<ul>
<li>input</li>
<li>textarea</li>
<li>wysiwyg</li>
<li>repeatable field groups</li>
</ul>
In order to make field translatable add <code>.cmb2-qtranslate</code> class to it. For non-WYSIWYG fields you may prefer to use <code>data-cmb2-qtranslate</code> which is also supported (since 0.0.3 version).
Usage example
WYSIWYG field:
<pre><code>> $field1 = $cmb_demo2->add_field( array(
> 'name' => __( 'SECOND Text', $this->plugin_slug ),
> 'desc' => __( 'field description (optional)', $this->plugin_slug ),
> 'id' => $prefix . $this->plugin_slug . '_second_text',
> 'class' => 'cmb2',
> 'type' => 'wysiwyg',
> 'options' => array(
> 'editor_class' => 'cmb2-qtranslate'
> )
> ) );
</code></pre>
Other fields:
<pre><code>> $field2 = $cmb_demo->add_field( array(
> 'name' => __( 'Text Small', $this->plugin_slug ),
> 'desc' => __( 'field description (optional)', $this->plugin_slug ),
> 'id' => $prefix . $this->plugin_slug . '_textsmall',
> 'class' => 'cmb2',
> 'type' => 'text',
> 'attributes' => array(
> 'class' => 'cmb2-qtranslate'
> )
> ) );

> // You may also use data-attributes instead of class to trigger qTranslate for the field
> // however it is not supported by WYSIWYG field (WordPress limitation)

> $field2 = $cmb_demo->add_field( array(
> 'name' => __( 'Text Small', $this->plugin_slug ),
> 'desc' => __( 'field description (optional)', $this->plugin_slug ),
> 'id' => $prefix . $this->plugin_slug . '_textsmall',
> 'class' => 'cmb2',
> 'type' => 'text',
> 'attributes' => array(
> 'data-cmb2-qtranslate' => true
> )
> ) );
</code></pre>
Detailed info about field creation could be found in CMB2 project documentation (https://github.com/WebDevStudios/CMB2/wiki).
Usage on custom Theme Options Page:
See https://github.com/qTranslate-Team/qtranslate-x/wiki/Custom-page-(plugin)-integration
You should define at least one form field in <code>$admin-config</code> array to trigger qTranslate LSB on your custom Theme Options Page. In other case you will end up with not working LSB. It happens because by default qTranslate is available only on specific pages: content pages, general options and maybe some others, but not your custom page (if you will create one).
Requirements/Dependencies
<ul>
<li>CMB2 (https://pl.wordpress.org/plugins/cmb2/)</li>
<li>qTranslateX (https://pl.wordpress.org/plugins/qtranslate-x/)</li>
</ul>
Links
<ul>
<li><a href="https://github.com/jmarceli/integration-cmb2-qtranslate" rel="nofollow ugc">Github project page</a></li>
</ul>

qTranslate META vs Integration-CMB2-qTranslate