sequelize.sync({ force: true }) 有时无法正常工作 [英] sequelize.sync({ force: true }) is not working some times

问题描述

我正在使用 gulp 任务来迁移数据库.出于测试目的，我使用不同的数据库.所以我需要完全相同的数据库.我正在尝试使用 sequelize.sync({ force: true }) 但它不起作用.

i am using gulp tasks for migration of database. For testing purpose i am using different database. so i need exactly same database. i am trying to do with sequelize.sync({ force: true }) but its not working.

我的所有模型都在门户模型中.这是代码:

i am having my all models in portal-model. here is the code:

const models = require('portal-models');
gulp.task('migrate', ['create-database'], (done) => {
  models.sequelize.query('SET FOREIGN_KEY_CHECKS = 0')
  .then(() => models.sequelize.sync({ force: true, alter: true }))
....
....
....
)

使用 Force: true 它应该可以工作，但对我来说，我遇到了类似 mydatbaseName.tablename 不存在的错误.

With Force: true it should work but for me i am getting error like mydatbaseName.tablename is not exists.

我创建了新的测试数据库.我不想在 testdatabase 中手动创建所有内容，所以我正在使用迁移，但我 gusse 同步无法正常工作.

i have created new test database. i dont want to manually create everything in testdatabase, so i am using migrations but i gusse sync is not working properly.

谁能告诉我，我到底应该遵循什么?

Can anyone tell, exactly what should i follow?

提前致谢.

推荐答案

终于找到了错误.models.sequelize.sync({ force: true })它工作正常，但我无法在命令提示符下看到任何日志，所以我认为同步无法正常工作.我已经添加了models.sequelize.sync({ force: true, logging: console.log }))有了这个我能够看到日志，它正在删除所有表并再次创建.问题不在于 sequelize.sync() .问题出在我的数据库名称上，它仅指开发数据库，​​我正在对 testDatabase 执行查询.

Finally i found the mistake. models.sequelize.sync({ force: true }) it was working properly but i was not able to see any logs on command prompt so i thought sync is not working properly. I have added models.sequelize.sync({ force: true, logging: console.log })) With this i was able to see the log, it was dropping all tables and again creating. The problem was not with sequelize.sync() . Problem was with my database name, it was referring development database only, and i was executing queries on testDatabase.

在运行测试之前，我只是更改了我的数据库，例如export MYSQL_DATABASENAME = test_database_name .问题解决了.

before running test, i just changed my database like export MYSQL_DATABASENAME = test_database_name . And issue solved.

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