我修改了我的实体并使用 npx mikro-orm migration:create
创建了它的迁移。现在,当我尝试使用 npx mikro-orm migration:up
应用迁移时。
我收到以下错误。
NotNullConstraintViolationException: alter table "user" add column "role" text check ("role" in ('admin', 'chief_editor', 'editor', 'user')) not null; - column "role" contains null values
at PostgreSqlExceptionConverter.convertException (C:\dev\nodejs\nestjs\blog-api\node_modules\@mikro-orm\postgresql\PostgreSqlExceptionConverter.js:24:24)
at PostgreSqlDriver.convertException (C:\dev\nodejs\nestjs\blog-api\node_modules\@mikro-orm\core\drivers\DatabaseDriver.js:194:54)
at C:\dev\nodejs\nestjs\blog-api\node_modules\@mikro-orm\core\drivers\DatabaseDriver.js:198:24
at processTicksAndRejections (node:internal/process/task_queues:93:5)
at Function.runSerial (C:\dev\nodejs\nestjs\blog-api\node_modules\@mikro-orm\core\utils\Utils.js:484:22)
at C:\dev\nodejs\nestjs\blog-api\node_modules\@mikro-orm\migrations\MigrationRunner.js:23:17
at PostgreSqlConnection.transactional (C:\dev\nodejs\nestjs\blog-api\node_modules\@mikro-orm\knex\AbstractSqlConnection.js:53:25)
at MigrationRunner.run (C:\dev\nodejs\nestjs\blog-api\node_modules\@mikro-orm\migrations\MigrationRunner.js:20:13)
previous error: alter table "user" add column "role" text check ("role" in ('admin', 'chief_editor', 'editor', 'user')) not null; - column "role" contains null values
at Parser.parseErrorMessage (C:\dev\nodejs\nestjs\blog-api\node_modules\pg-protocol\src\parser.ts:369:69)
at Parser.handlePacket (C:\dev\nodejs\nestjs\blog-api\node_modules\pg-protocol\src\parser.ts:188:21)
at Parser.parse (C:\dev\nodejs\nestjs\blog-api\node_modules\pg-protocol\src\parser.ts:103:30)
at TLSSocket.<anonymous> (C:\dev\nodejs\nestjs\blog-api\node_modules\pg-protocol\src\index.ts:7:48)
at TLSSocket.emit (node:events:376:20)
at TLSSocket.EventEmitter.emit (node:domain:470:12)
at addChunk (node:internal/streams/readable:311:12)
at readableAddChunk (node:internal/streams/readable:286:9)
at TLSSocket.Readable.push (node:internal/streams/readable:225:10)
at TLSWrap.onStreamRead (node:internal/stream_base_commons:192:23) {
length: 117,
severity: 'ERROR',
code: '23502',
detail: undefined,
hint: undefined,
position: undefined,
internalPosition: undefined,
internalQuery: undefined,
where: undefined,
schema: 'public',
table: 'user',
column: 'role',
dataType: undefined,
constraint: undefined,
file: 'tablecmds.c',
line: '4857',
routine: 'ATRewriteTable'
}
为什么迁移给我这个错误?