{"id":996,"date":"2011-01-16T16:26:48","date_gmt":"2011-01-16T07:26:48","guid":{"rendered":"http:\/\/www.kazu.tv\/blog\/?p=996"},"modified":"2013-09-16T21:20:26","modified_gmt":"2013-09-16T12:20:26","slug":"lift_mapper","status":"publish","type":"post","link":"https:\/\/kazu.tv\/blog\/2011\/01\/16\/lift_mapper\/","title":{"rendered":"Lift \u306emapper\u95a2\u9023"},"content":{"rendered":"<p>\u81ea\u5206\u7528\u30e1\u30e2\u3002lift-mapper\u95a2\u9023<\/p>\n<p>\u884c\u6570\u3092\u8abf\u3079\u308b\uff08select count(*) from \uff09\u3002<a target=\"_blank\" href=\"http:\/\/scala-tools.org\/mvnsites\/liftweb-2.2\/framework\/scaladocs\/net\/liftweb\/mapper\/MetaMapper.html\">scaladoc<\/a><\/p>\n<pre class=\"brush: scala; code\">\nSomeModel.count<\/pre>\n<p>\u30d5\u30a3\u30fc\u30eb\u30c9\u304cNULL\u304b\u3069\u3046\u304b\u3092\u8abf\u3079\u308b\u3002<\/p>\n<pre class=\"brush: scala; code\">\nsomeModel.field.is == null<\/pre>\n<p>&nbsp;\u30d5\u30a3\u30fc\u30eb\u30c9\u306bNULL\u3092\u30bb\u30c3\u30c8\u3059\u308b\u3002Stack Overflow\u3067\u306e\u4f3c\u305f\u3088\u3046\u306a<a target=\"_blank\" href=\"http:\/\/www.mail-archive.com\/liftweb@googlegroups.com\/msg05810.html\">\u8cea\u554f<\/a>\u3002<\/p>\n<pre class=\"brush: scala; code\">\nsomeModel.field(Empty)<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u81ea\u5206\u7528\u30e1\u30e2\u3002lift-mapper\u95a2\u9023 \u884c\u6570\u3092\u8abf\u3079\u308b\uff08select count(*) from \uff09\u3002scaladoc SomeModel.count \u30d5\u30a3\u30fc\u30eb\u30c9\u304cNULL\u304b\u3069\u3046\u304b\u3092\u8abf\u3079\u308b\u3002 someModel.field&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[20],"tags":[845,846,17,847,848,947],"class_list":["post-996","post","type-post","status-publish","format-standard","hentry","category-scala","tag-count","tag-empty","tag-lift","tag-lift-mapper","tag-null","tag-scala"],"_links":{"self":[{"href":"https:\/\/kazu.tv\/blog\/wp-json\/wp\/v2\/posts\/996","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kazu.tv\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kazu.tv\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kazu.tv\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kazu.tv\/blog\/wp-json\/wp\/v2\/comments?post=996"}],"version-history":[{"count":1,"href":"https:\/\/kazu.tv\/blog\/wp-json\/wp\/v2\/posts\/996\/revisions"}],"predecessor-version":[{"id":1152,"href":"https:\/\/kazu.tv\/blog\/wp-json\/wp\/v2\/posts\/996\/revisions\/1152"}],"wp:attachment":[{"href":"https:\/\/kazu.tv\/blog\/wp-json\/wp\/v2\/media?parent=996"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kazu.tv\/blog\/wp-json\/wp\/v2\/categories?post=996"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kazu.tv\/blog\/wp-json\/wp\/v2\/tags?post=996"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}