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Add support for term meta data #106

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Add support for term meta data #106

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stephenharris
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WordPress 4.4 adds term meta data, and trac ticket 34602, adds term meta data to the WXR export file. Although that ticket is still open, and is unlikely to be in 4.4, this PR adds support for importing term meta data, following the schema set out in that ticket.

This PR replaces #18

@stephenharris
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If wxr_importer.pre_process.term_meta returns a false-y value all subsequent term meta is skipped, not just the current one. This doesn't seem to me to be the intended behaviour, but is consistent with how the corresponding hooks for post meta and comments currently work.

If that is indeed a bug then I'm happy to open another PR to fix that, and modify this one accordingly.

* @param array $meta_item Meta data. (Return empty to skip.)
* @param int $term_id Term the meta is attached to.
*/
$meta_item = apply_filters( 'wxr_importer.pre_process.term_meta', $meta_item, $term_id );
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Continuing from #18 (comment)

I think the term_id is different to the term data, so we can't just pass term.

// export gets meta straight from the DB so could have a serialized string
$value = maybe_unserialize( $meta_item['value'] );

add_term_meta( $term_id, $key, $value );
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Do these need to be slashed?

@rmccue
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rmccue commented Mar 8, 2017

Agreed, I think it should be a continue not a return

… should skip the current term meta, not all subsequent term meta.
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