{"id":168328,"date":"2013-11-04T08:33:28","date_gmt":"2013-11-03T23:33:28","guid":{"rendered":""},"modified":"2016-07-30T20:33:41","modified_gmt":"2016-07-30T20:33:41","slug":"%e3%82%ab%e3%82%b9%e3%82%bf%e3%83%a0%e3%83%95%e3%82%a3%e3%83%bc%e3%83%ab%e3%83%89%e3%81%ab%e3%82%88%e3%82%8b%e3%82%a2%e3%83%bc%e3%82%ab%e3%82%a4%e3%83%96%e3%83%aa%e3%82%b9%e3%83%88%e3%81%ab%e3%81%a4","status":"closed","type":"topic","link":"https:\/\/ja.wordpress.org\/support\/topic\/%e3%82%ab%e3%82%b9%e3%82%bf%e3%83%a0%e3%83%95%e3%82%a3%e3%83%bc%e3%83%ab%e3%83%89%e3%81%ab%e3%82%88%e3%82%8b%e3%82%a2%e3%83%bc%e3%82%ab%e3%82%a4%e3%83%96%e3%83%aa%e3%82%b9%e3%83%88%e3%81%ab%e3%81%a4\/","title":{"rendered":"\u30ab\u30b9\u30bf\u30e0\u30d5\u30a3\u30fc\u30eb\u30c9\u306b\u3088\u308b\u30a2\u30fc\u30ab\u30a4\u30d6\u30ea\u30b9\u30c8\u306b\u3064\u3044\u3066"},"content":{"rendered":"

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functions.php\u306b\u30b3\u30fc\u30c9\u3092\u30a4\u30f3\u30af\u30eb\u30fc\u30c9\u3057\u30a6\u30a3\u30b8\u30a7\u30c3\u30c8\u306b\u30a2\u30fc\u30ab\u30a4\u30d6\u3092\u8868\u793a\u3055\u305b\u308b\u30b3\u30fc\u30c9\u3092
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functions.php<\/p>\n

function my_get_year_archives( $args = '' ) {\n\tglobal $wpdb, $wp_locale;\n\n\t$defaults = array(\n\t\t'date_field' => 'date',\n\t\t'format' => 'html',\n\t\t'echo' => true,\n\t\t'limit' => '',\n\t\t'before' => '',\n\t\t'after' => '',\n\t\t'show_post_count' => true,\n\t);\n\n\t$r = wp_parse_args( $args, $defaults );\n\textract( $r, EXTR_SKIP );\n\n\tif ( '' != $limit ) {\n\t\t$limit = absint( $limit );\n\t\t$limit = ' LIMIT '.$limit;\n\t}\n\n\t$field  = 'm.meta_value';\n\t$select = "SELECT SUBSTRING($field,1,4) AS <code>year<\/code>, count(p.ID) AS posts";\n\t$where  = "WHERE p.post_type = 'post' AND p.post_status = 'publish'";\n\t$where .= $wpdb->prepare( ' AND m.meta_key = %s', $date_field );\n\t$join   = " INNER JOIN $wpdb->postmeta AS m ON m.post_id = p.ID";\n\n\t$where  = apply_filters( 'getarchives_where', $where, $r );\n\t$join   = apply_filters( 'getarchives_join' , $join , $r );\n\n\t$output = '';\n\t$query = "$select FROM $wpdb->posts AS p $join $where GROUP BY SUBSTRING($field,1,4) ORDER BY $field DESC $limit";\n\t$key = md5( $query );\n\t$cache = wp_cache_get( 'my_get_year_archives' , 'general' );\n\tif ( !isset( $cache[ $key ] ) ) {\n\t\t$arcresults = $wpdb->get_results( $query );\n\t\t$cache[ $key ] = $arcresults;\n\t\twp_cache_set( 'my_get_year_archives', $cache, 'general' );\n\t} else {\n\t\t$arcresults = $cache[ $key ];\n\t}\n\n\tif ( $arcresults ) {\n\t\t$afterafter = $after;\n\t\tforeach ( (array) $arcresults as $arcresult ) {\n\t\t\t$url = add_query_arg( array( 'meta_key' => $date_field ), get_year_link( $arcresult->year ) );\n\t\t\t$text = sprintf( '%d', $arcresult->year );\n\t\t\tif ($show_post_count)\n\t\t\t\t$after = '\u00a0('.$arcresult->posts.')' . $afterafter;\n\t\t\t$output .= get_archives_link( $url, $text, $format, $before, $after );\n\t\t}\n\t}\n\n\tif ( $echo )\n\t\techo $output;\n\telse\n\t\treturn $output;\n}\n\nadd_action( 'init', 'my_init' );\nfunction my_init() {\n\tglobal $wp;\n\t$wp->add_query_var( 'meta_key' );\n}\n\nadd_action( 'pre_get_posts', 'my_pre_get_posts' );\nfunction my_pre_get_posts( $query ) {\n\tif ( $query->is_year ) {\n\t\t$meta_query = array(\n\t\t\tarray(\n\t\t\t\t'key'     => $query->get( 'meta_key' ),\n\t\t\t\t'value'   => $query->get( 'year'     ),\n\t\t\t\t'compare' => 'LIKE'\n\t\t\t),\n\t\t);\n\n        $query->set( 'meta_query' , $meta_query );\n\t\t$query->set( 'year'       , ''          );\n\t\t$query->set( 'date'       , ''          );\n\t\t$query->set( 'meta_key'   , 'date');\n\t\t$query->set( 'orderby'    , 'meta_value' );\n\t\t$query->set( 'order'      , 'DECS'       );\n\t}\n}<\/code><\/pre>\n
\u30a6\u30a3\u30b8\u30a7\u30c3\u30c8
\n<?php my_get_year_archives( array( 'date_field' => 'date', ) ); ?><\/code><\/p>\n
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\u203bdate\u306b\u306f\u30ab\u30b9\u30bf\u30e0\u30d5\u30a3\u30fc\u30eb\u30c9\u540d\u3001\u30ab\u30b9\u30bf\u30e0\u30d5\u30a3\u30fc\u30eb\u30c9\u306e\u5024\u306b\u306fYYYY\u5e74MM\u6708DD\u65e5\u3068\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n","protected":false},"template":"","class_list":["post-168328","topic","type-topic","status-closed","hentry","topic-tag-14401","topic-tag-14005","topic-tag-14327","topic-tag-14430"],"jetpack_sharing_enabled":true,"jetpack_likes_enabled":true,"_links":{"self":[{"href":"https:\/\/ja.wordpress.org\/support\/wp-json\/wp\/v2\/topic\/168328","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ja.wordpress.org\/support\/wp-json\/wp\/v2\/topic"}],"about":[{"href":"https:\/\/ja.wordpress.org\/support\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/ja.wordpress.org\/support\/wp-json\/wp\/v2\/topic\/168328\/revisions"}],"wp:attachment":[{"href":"https:\/\/ja.wordpress.org\/support\/wp-json\/wp\/v2\/media?parent=168328"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}