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REST API: Introduce rest_{$this->post_type}_item_schema filter to enable manipulation of schema values.
register_rest_field can be used to add properties to a schema, but no mechanism existed to alter existing properties like "content". Running the schema through this filter lets plugins append additional sub-properties to existing schema definitions. Props luisherranz, TimothyBlynJacobs, swissspidy, westonruter, kadamwhite. Fixes #47779. Built from https://develop.svn.wordpress.org/trunk@47265 git-svn-id: http://core.svn.wordpress.org/trunk@47065 1a063a9b-81f0-0310-95a4-ce76da25c4cd
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@ -2406,6 +2406,27 @@ class WP_REST_Posts_Controller extends WP_REST_Controller {
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$schema['links'] = $schema_links;
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}
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// Take a snapshot of which fields are in the schema pre-filtering.
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$schema_fields = array_keys( $schema['properties'] );
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/**
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* Filter the post's schema.
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*
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* The dynamic portion of the filter, `$this->post_type`, refers to the
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* post type slug for the controller.
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*
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* @since 5.4.0
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*
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* @param array $schema Item schema data.
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*/
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$schema = apply_filters( "rest_{$this->post_type}_item_schema", $schema );
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// Emit a _doing_it_wrong warning if user tries to add new properties using this filter.
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$new_fields = array_diff( array_keys( $schema['properties'] ), $schema_fields );
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if ( count( $new_fields ) > 0 ) {
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_doing_it_wrong( __METHOD__, __( 'Please use register_rest_field to add new schema properties.' ), '5.4.0' );
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}
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$this->schema = $schema;
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return $this->add_additional_fields_schema( $this->schema );
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@ -13,7 +13,7 @@
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*
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* @global string $wp_version
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*/
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$wp_version = '5.4-alpha-47264';
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$wp_version = '5.4-alpha-47265';
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/**
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* Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.
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