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<?php # -*- coding: utf-8 -*- |
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namespace MultisiteGlobalMedia\ACF; |
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use MultisiteGlobalMedia\Helper; |
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use MultisiteGlobalMedia\SingleSwitcher; |
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use MultisiteGlobalMedia\Site; |
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class Image |
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{ |
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use Helper; |
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/** |
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* @var Site |
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*/ |
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private $site; |
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/** |
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* @var SingleSwitcher |
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*/ |
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private $siteSwitcher; |
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/** |
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* Image constructor |
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* |
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* @param Site $site |
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* @param SingleSwitcher $siteSwitcher |
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*/ |
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public function __construct(Site $site, SingleSwitcher $siteSwitcher){ |
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$this->site = $site; |
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$this->siteSwitcher = $siteSwitcher; |
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$this->store = acf_get_store( 'values' ); |
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} |
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// Fetch ACF file fields across sites when the global prefix is used. |
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// We hook into 'load_value' which usually runs just before 'format_value'. |
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// Then get the formatted output of the field in the global media site's context, |
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// and store it in ACF's cache. So when format_value tries to use this value, |
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// it will find the formatted one already in the cache. |
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// This works around acf_format_value requiring a valid att ID as input, but |
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// returning a string/array as output, so it can't be easily filtered. |
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public function acf_load_value( $value, $post_id, $field ) { |
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if ( $this->idPrefixIncludedInAttachmentId( (int)$value, $this->site->idSitePrefix() ) ) { |
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$formatted = $this->stripSiteIdPrefixFromAttachmentId( $this->site->idSitePrefix(), $value ); |
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$this->siteSwitcher->switchToBlog( $this->site->id() ); |
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$formatted = acf_format_value( $formatted, $post_id, $field ); |
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$this->siteSwitcher->restoreBlog(); |
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$this->store->set( "$post_id:{$field['name']}:formatted", $formatted ); |
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} |
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// This filter doesn't modify the loaded value. Return it as-is. |
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return $value; |
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} |
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} |
bueltge /
multisite-global-media
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