{"id":21646,"date":"2024-01-02T12:57:25","date_gmt":"2024-01-02T12:57:25","guid":{"rendered":"https:\/\/server.hk\/blog\/21646\/"},"modified":"2024-11-14T10:29:17","modified_gmt":"2024-11-14T02:29:17","slug":"how-to-fix-mongodb-error-code-52-dollarprefixedfieldname","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/21646\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9 MongoDB \u932f\u8aa4\u4ee3\u78bc – 52 – DollarPrefixedFieldName"},"content":{"rendered":"

\u5982\u4f55\u4fee\u5fa9 MongoDB \u932f\u8aa4\u4ee3\u78bc – 52 – DollarPrefixedFieldName<\/h1>\n

MongoDB \u662f\u4e00\u500b\u53d7\u6b61\u8fce\u7684 NoSQL \u8cc7\u6599\u5eab\uff0c\u63d0\u4f9b\u9ad8\u6548\u80fd\u3001\u64f4\u5c55\u6027\u548c\u9748\u6d3b\u6027\u3002\u7136\u800c\uff0c\u8207\u5176\u4ed6\u8edf\u4ef6\u4e00\u6a23\uff0c\u5b83\u53ef\u80fd\u6703\u9047\u5230\u9700\u8981\u89e3\u6c7a\u7684\u932f\u8aa4\u3002\u5176\u4e2d\u4e00\u500b\u932f\u8aa4\u662f MongoDB \u932f\u8aa4\u4ee3\u78bc – 52 – DollarPrefixedFieldName\u3002\u5728\u672c\u6587\u4e2d\uff0c\u6211\u5011\u5c07\u63a2\u8a0e\u6b64\u932f\u8aa4\u7684\u542b\u7fa9\u53ca\u5176\u4fee\u5fa9\u65b9\u6cd5\u3002<\/p>\n

\u7406\u89e3 MongoDB \u932f\u8aa4\u4ee3\u78bc – 52 – DollarPrefixedFieldName<\/h2>\n

MongoDB \u932f\u8aa4\u4ee3\u78bc – 52 – DollarPrefixedFieldName \u767c\u751f\u65bc\u60a8\u5617\u8a66\u5728\u66f4\u65b0\u64cd\u4f5c\u4e2d\u4f7f\u7528\u4ee5\u7f8e\u5143\u7b26\u865f ($) \u958b\u982d\u7684\u6b04\u4f4d\u540d\u7a31\u6642\u3002\u7f8e\u5143\u7b26\u865f\u5728 MongoDB \u4e2d\u662f\u4fdd\u7559\u5b57\u5143\uff0c\u4e3b\u8981\u7528\u65bc\u8868\u793a\u5404\u7a2e\u66f4\u65b0\u904b\u7b97\u7b26\uff0c\u4f8b\u5982 $set\u3001$inc\u3001$push \u7b49\u3002\u56e0\u6b64\uff0c\u4f7f\u7528\u4ee5\u7f8e\u5143\u7b26\u865f\u958b\u982d\u7684\u6b04\u4f4d\u540d\u7a31\u53ef\u80fd\u6703\u5c0e\u81f4\u885d\u7a81\u4e26\u5f15\u767c\u6b64\u932f\u8aa4\u3002<\/p>\n

\u4f8b\u5982\uff0c\u8003\u616e\u4ee5\u4e0b\u66f4\u65b0\u64cd\u4f5c\uff1a<\/p>\n

db.collection.update(\r\n   { _id: ObjectId(\"5f7e9a7e9a7e9a7e9a7e9a7e\") },\r\n   { $set: { $field: \"value\" } }\r\n)\r\n<\/code><\/pre>\n
\u5728\u6b64\u60c5\u6cc1\u4e0b\uff0c\u5982\u679c\u6b04\u4f4d\u540d\u7a31\u70ba $field\uff0cMongoDB \u6703\u62cb\u51fa\u932f\u8aa4\u4ee3\u78bc – 52 – DollarPrefixedFieldName\u3002<\/p>\n
\u4fee\u5fa9 MongoDB \u932f\u8aa4\u4ee3\u78bc – 52 – DollarPrefixedFieldName<\/h2>\n
\u8981\u4fee\u5fa9\u6b64\u932f\u8aa4\uff0c\u60a8\u9700\u8981\u78ba\u4fdd\u6b04\u4f4d\u540d\u7a31\u4e0d\u4ee5\u7f8e\u5143\u7b26\u865f\u958b\u982d\u3002\u4ee5\u4e0b\u662f\u60a8\u53ef\u4ee5\u9075\u5faa\u7684\u6b65\u9a5f\uff1a<\/p>\n
1. \u6aa2\u67e5\u6b04\u4f4d\u540d\u7a31<\/h3>\n
\u6aa2\u67e5\u60a8\u7684\u4ee3\u78bc\u4e26\u8b58\u5225\u4efb\u4f55\u4ee5\u7f8e\u5143\u7b26\u865f\u958b\u982d\u7684\u6b04\u4f4d\u540d\u7a31\u3002\u9019\u4e9b\u6b04\u4f4d\u540d\u7a31\u53ef\u80fd\u51fa\u73fe\u5728\u66f4\u65b0\u64cd\u4f5c\u3001\u67e5\u8a62\u6216\u6587\u4ef6\u7d50\u69cb\u4e2d\u3002\u5217\u51fa\u6240\u6709\u9700\u8981\u4fee\u6539\u7684\u6b04\u4f4d\u540d\u7a31\u3002<\/p>\n
2. \u91cd\u547d\u540d\u6b04\u4f4d\u540d\u7a31<\/h3>\n
\u4e00\u65e6\u8b58\u5225\u51fa\u4ee5\u7f8e\u5143\u7b26\u865f\u958b\u982d\u7684\u6b04\u4f4d\u540d\u7a31\uff0c\u60a8\u9700\u8981\u5c07\u5b83\u5011\u91cd\u547d\u540d\u3002\u9078\u64c7\u4e00\u500b\u4e0d\u4ee5\u7f8e\u5143\u7b26\u865f\u958b\u982d\u4e14\u80fd\u6e96\u78ba\u8868\u793a\u5176\u6578\u64da\u7684\u540d\u7a31\u3002\u66f4\u65b0\u4ee3\u78bc\u5eab\u4e2d\u6240\u6709\u8a72\u6b04\u4f4d\u540d\u7a31\u7684\u51fa\u73fe\u4f4d\u7f6e\u3002<\/p>\n
3. \u66f4\u65b0\u6587\u4ef6<\/h3>\n
\u5982\u679c\u60a8\u7684 MongoDB \u96c6\u5408\u4e2d\u5df2\u6709\u5305\u542b\u4ee5\u7f8e\u5143\u7b26\u865f\u958b\u982d\u6b04\u4f4d\u540d\u7a31\u7684\u6587\u4ef6\uff0c\u60a8\u4e5f\u9700\u8981\u5c0d\u5b83\u5011\u9032\u884c\u66f4\u65b0\u3002\u4f7f\u7528 $rename \u904b\u7b97\u7b26\u4f86\u91cd\u547d\u540d\u6bcf\u500b\u6587\u4ef6\u4e2d\u7684\u6b04\u4f4d\u3002<\/p>\n
db.collection.updateMany(\r\n   { $expr: { $gt: [ { $indexOfCP: [ \"$$CURRENT\", \"$$CURRENT.$field\" ] }, -1 ] } },\r\n   { $rename: { \"$field\": \"newField\" } }\r\n)\r\n<\/code><\/pre>\n
\u5c07 collection<\/code> \u66ff\u63db\u70ba\u60a8\u7684\u96c6\u5408\u540d\u7a31\uff0c\u5c07 $field<\/code> \u66ff\u63db\u70ba\u60a8\u60f3\u91cd\u547d\u540d\u7684\u5be6\u969b\u6b04\u4f4d\u540d\u7a31\uff0c\u4e26\u5c07 newField<\/code> \u66ff\u63db\u70ba\u65b0\u7684\u6b04\u4f4d\u540d\u7a31\u3002<\/p>\n
4. \u6e2c\u8a66\u60a8\u7684\u4ee3\u78bc<\/h3>\n
\u9032\u884c\u5fc5\u8981\u7684\u66f4\u6539\u5f8c\uff0c\u6e2c\u8a66\u60a8\u7684\u4ee3\u78bc\uff0c\u78ba\u4fdd\u4e0d\u518d\u51fa\u73fe MongoDB \u932f\u8aa4\u4ee3\u78bc – 52 – DollarPrefixedFieldName\u3002\u9a57\u8b49\u60a8\u7684\u66f4\u65b0\u64cd\u4f5c\u3001\u67e5\u8a62\u548c\u6587\u4ef6\u7d50\u69cb\u662f\u5426\u6309\u9810\u671f\u904b\u884c\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
MongoDB \u932f\u8aa4\u4ee3\u78bc – 52 – DollarPrefixedFieldName \u767c\u751f\u65bc\u60a8\u5728\u66f4\u65b0\u64cd\u4f5c\u4e2d\u4f7f\u7528\u4ee5\u7f8e\u5143\u7b26\u865f ($) \u958b\u982d\u7684\u6b04\u4f4d\u540d\u7a31\u6642\u3002\u70ba\u4e86\u4fee\u5fa9\u6b64\u932f\u8aa4\uff0c\u60a8\u9700\u8981\u91cd\u547d\u540d\u6b04\u4f4d\u540d\u7a31\u4e26\u76f8\u61c9\u5730\u66f4\u65b0\u6587\u4ef6\u3002\u6309\u7167\u672c\u6587\u4e2d\u7684\u6b65\u9a5f\uff0c\u60a8\u53ef\u4ee5\u89e3\u6c7a\u6b64\u932f\u8aa4\uff0c\u4e26\u78ba\u4fdd MongoDB \u8cc7\u6599\u5eab\u7684\u9806\u5229\u904b\u884c\u3002<\/p>\n
\u5982\u9700\u4e86\u89e3\u66f4\u591a VPS \u8a17\u7ba1\u89e3\u6c7a\u65b9\u6848\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f Server.HK<\/a>\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5982\u4f55\u4fee\u5fa9 MongoDB \u932f\u8aa4\u4ee3...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-21646","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21646","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=21646"}],"version-history":[{"count":2,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21646\/revisions"}],"predecessor-version":[{"id":23775,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21646\/revisions\/23775"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=21646"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=21646"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=21646"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}