{"id":682,"date":"2021-04-03T09:31:59","date_gmt":"2021-04-03T08:31:59","guid":{"rendered":"http:\/\/blog.chen-hongyi.com\/?p=682"},"modified":"2021-04-03T09:31:59","modified_gmt":"2021-04-03T08:31:59","slug":"value-object-in-symfony","status":"publish","type":"post","link":"https:\/\/chen-hongyi.com\/?p=682","title":{"rendered":"Value Object in Symfony"},"content":{"rendered":"\n<p>\u770b\u4e86\u8fd9\u7bc7<a href=\"https:\/\/webmozart.io\/blog\/2015\/09\/09\/value-objects-in-symfony-forms\/\">\u6587\u7ae0<\/a>  \uff0c\u63a5\u89e6\u5230\u4e00\u4e2a\u6982\u5ff5\uff0c value object. \u6240\u8c13value object\u662f\u7528\u6765\u4fdd\u5b58value\u7684\u4e00\u79cd\u5bf9\u8c61\u3002\u8fd9\u79cd\u5bf9\u8c61\u7684\u51e0\u4e2a\u4e3b\u8981\u7279\u5f81\u662f <\/p>\n\n\n\n<p>\u5173\u5fc3\u503c\u672c\u8eab\u800c\u4e0d\u662f\u57fa\u4e8eid\u7684<\/p>\n\n\n\n<p>\u4e0d\u53ef\u53d8 (immutable). \u610f\u601d\u5c31\u662f\u8bf4\uff0c\u53ea\u6709getter\u65b9\u6cd5, \u6ca1\u6709setter\u7b49\u7b49\u53ef\u4ece\u5916\u8fb9\u6539\u53d8\u8be5\u5bf9\u8c61\u7684\u65b9\u6cd5\u3002\u8be5\u5bf9\u8c61\u7684\u503c\u5728\u521b\u5efa\u5bf9\u8c61\u7684\u65f6\u5019\u901a\u8fc7\u6784\u9020\u51fd\u6570\u5c31\u88ab\u786e\u5b9a\u4e86\uff0c\u4e14\u4e0d\u80fd\u518d\u88ab\u4fee\u6539\u4e86\u3002<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p>\u4f7f\u7528\u573a\u666f<\/p>\n\n\n\n<p>\u5728symfony\u7684form\u91cc\uff0c\u7528\u6237\u901a\u8fc7\u8868\u5355\u63d0\u4ea4\u6765\u521b\u5efa\u4e00\u4e2a\u65b0\u7684value object. \u5f53\u7528\u6237\u901a\u8fc7\u8868\u5355\u7f16\u8f91\u5bf9\u8c61\u7684\u65f6\u5019\uff0c\u672c\u80fd\u7684\u4f1a\u60f3\u5230\u8c03\u7528setter\u65b9\u6cd5\u6765\u4fee\u6539\u5bf9\u8c61\u3002\u4f46\u662f\u8fd9\u4f1a\u5931\u8d25\uff0c\u56e0\u4e3avalue object\u6ca1\u6709setter\u65b9\u6cd5\u3002 \u8fd9\u65f6\u5019\u9700\u8981\u5b9e\u73b0\u989d\u5916\u7684interface,\u6765\u5b9e\u73b0\u8fd9\u4e9b\u4e2a\u529f\u80fd\u3002\u6700\u540e\u5728Type (\u5173\u4e8esymfony\u7684form type\u662f\u53e6\u5916\u4e00\u4e2a\u62bd\u8c61\u6982\u5ff5\uff0c\u770b<a href=\"https:\/\/symfony.com\/doc\/current\/forms.html\">\u6587\u6863<\/a>)\u91cc\u9762\uff0c\u628a\u8fd9\u4e2a\u65b9\u6cd5\u8bbe\u7f6e\u4e3aformBuilder\u7684DataMapper\u65b9\u6cd5\u3002<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u770b\u4e86\u8fd9\u7bc7\u6587\u7ae0 \uff0c\u63a5\u89e6\u5230\u4e00\u4e2a\u6982\u5ff5\uff0c value object. \u6240\u8c13value o &hellip; <a href=\"https:\/\/chen-hongyi.com\/?p=682\">\u7ee7\u7eed\u9605\u8bfb <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-682","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/chen-hongyi.com\/index.php?rest_route=\/wp\/v2\/posts\/682","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/chen-hongyi.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/chen-hongyi.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/chen-hongyi.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/chen-hongyi.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=682"}],"version-history":[{"count":1,"href":"https:\/\/chen-hongyi.com\/index.php?rest_route=\/wp\/v2\/posts\/682\/revisions"}],"predecessor-version":[{"id":683,"href":"https:\/\/chen-hongyi.com\/index.php?rest_route=\/wp\/v2\/posts\/682\/revisions\/683"}],"wp:attachment":[{"href":"https:\/\/chen-hongyi.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=682"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/chen-hongyi.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=682"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/chen-hongyi.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=682"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}