{"id":1025,"date":"2022-01-11T08:53:43","date_gmt":"2022-01-10T23:53:43","guid":{"rendered":"https:\/\/blog.wsd.sh\/?p=1025"},"modified":"2022-01-11T09:39:00","modified_gmt":"2022-01-11T00:39:00","slug":"golang-struct%e3%81%8b%e3%82%89%e6%8c%87%e5%ae%9a%e3%81%97%e3%81%9ffield-name%e3%81%a7%e5%80%a4%e3%82%92%e5%8f%96%e3%82%8a%e5%87%ba%e3%81%99","status":"publish","type":"post","link":"https:\/\/blog.wsd.sh\/?p=1025","title":{"rendered":"<small>golang struct\u304b\u3089\u3001\u6307\u5b9a\u3057\u305ffield name\u3067\u5024\u3092\u53d6\u308a\u51fa\u3059\u95a2\u6570<\/small>"},"content":{"rendered":"<p>\uff11\uff0ehasFieldValue \u3092\u4f5c\u6210<br \/>\n\u30fb\u53d6\u308a\u51fa\u3059\u5024\u306fstring\u56fa\u5b9a<br \/>\n\u30fbfield name\u306e\u6709\u7121\u3092\u793a\u3059bool\u5024<br \/>\nhasFieldValue ( target interface { } , field_name string) (string , bool)<\/p>\n<p>\uff12\uff0e\u547c\u3073\u51fa\u3057\u5074\u306ecode<br \/>\n\u30fbtarget\u306fstruct\u3067\u5b9a\u7fa9\u3057\u305f\u69cb\u9020\u4f53<\/p>\n<pre>\r\nvar _t string;\r\nvar target interface {};\r\n\r\n....\r\n\r\nerr = rows.Scan( &_t);\r\njson.Unmarshal([]byte(_t), &target)\r\nsearch_string:=\"format\"\r\n\r\nhasFieldValue(target, search_string);\r\n<\/pre>\n<p>\uff13\uff0ehasFieldValue\u3000\u95a2\u6570<\/p>\n<pre>\r\nfunc hasFieldValue(target interface{}, field_name string) (string, bool) {\r\n\r\n   iter := reflect.ValueOf( target).MapRange()\r\n   for iter.Next() {\r\n      k := fmt.Sprintf(\"%s\",iter.Key())\r\n      if k == field_name {\r\n         v := fmt.Sprintf(\"%s\",iter.Value());\r\n            return v, true;\r\n        }\r\n    }\r\n    return \"\", false;\r\n}\r\n<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\uff11\uff0ehasFieldValue \u3092\u4f5c\u6210 \u30fb\u53d6\u308a\u51fa\u3059\u5024\u306fstring\u56fa\u5b9a \u30fbfield name\u306e\u6709\u7121\u3092\u793a\u3059bool\u5024 hasFieldValue ( target interface { } , field_name s&#8230;<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false},"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/blog.wsd.sh\/index.php?rest_route=\/wp\/v2\/posts\/1025"}],"collection":[{"href":"https:\/\/blog.wsd.sh\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.wsd.sh\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.wsd.sh\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.wsd.sh\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1025"}],"version-history":[{"count":15,"href":"https:\/\/blog.wsd.sh\/index.php?rest_route=\/wp\/v2\/posts\/1025\/revisions"}],"predecessor-version":[{"id":1053,"href":"https:\/\/blog.wsd.sh\/index.php?rest_route=\/wp\/v2\/posts\/1025\/revisions\/1053"}],"wp:attachment":[{"href":"https:\/\/blog.wsd.sh\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1025"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.wsd.sh\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1025"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.wsd.sh\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1025"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}