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get_block_template ( $id, $template_type = 'wp_template' )
get_block_template:此函数返回指定块类型的模板。它接受一个参数:$block_type,它是块类型的名称。
使用其id检索一个统一的模板对象。
function get_block_template( $id, $template_type = 'wp_template' ) { /** * Filters the block template object before the query takes place. * * Return a non-null value to bypass the WordPress queries. * * @since 5.9.0 * * @param WP_Block_Template|null $block_template Return block template object to short-circuit the default query, * or null to allow WP to run its normal queries. * @param string $id Template unique identifier (example: theme_slug//template_slug). * @param string $template_type Template type: `'wp_template'` or '`wp_template_part'`. */ $block_template = apply_filters( 'pre_get_block_template', null, $id, $template_type ); if ( ! is_null( $block_template ) ) { return $block_template; } $parts = explode( '//', $id, 2 ); if ( count( $parts ) < 2 ) { return null; } list( $theme, $slug ) = $parts; $wp_query_args = array( 'post_name__in' => array( $slug ), 'post_type' => $template_type, 'post_status' => array( 'auto-draft', 'draft', 'publish', 'trash' ), 'posts_per_page' => 1, 'no_found_rows' => true, 'tax_query' => array( array( 'taxonomy' => 'wp_theme', 'field' => 'name', 'terms' => $theme, ), ), ); $template_query = new WP_Query( $wp_query_args ); $posts = $template_query->posts; if ( count( $posts ) > 0 ) { $template = _build_block_template_result_from_post( $posts[0] ); if ( ! is_wp_error( $template ) ) { return $template; } } $block_template = get_block_file_template( $id, $template_type ); /** * Filters the queried block template object after it's been fetched. * * @since 5.9.0 * * @param WP_Block_Template|null $block_template The found block template, or null if there isn't one. * @param string $id Template unique identifier (example: theme_slug//template_slug). * @param array $template_type Template type: `'wp_template'` or '`wp_template_part'`. */ return apply_filters( 'get_block_template', $block_template, $id, $template_type ); }