[英]Does a db:migrate on Heroku alter the production database?
I'm working with a small app on Heroku and I'm wondering if a heroku run rake db:migrate
will affect the production database. 我正在使用Heroku上的一个小应用程序,我想知道
heroku run rake db:migrate
会影响生产数据库。 Any thoughts? 有什么想法吗?
I tried heroku db:pull
but the pull stopped midway (not to mention that it screwed up my local db): 我尝试了
heroku db:pull
但拉动中途停止了(更不用说它搞砸了我的本地数据库):
Schema: 60% |==================================================================================== | ETA: 00:00:16
Saving session to pull_201207010723.dat..
!!! Caught Server Exception
HTTP CODE: 503
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=ISO-8859-1">
<style type="text/css">
html, body, iframe { margin: 0; padding: 0; height: 100%; }
iframe { display: block; width: 100%; border: none; }
</style>
<title>Application Error</title></head>
</head>
<body>
<iframe src="//s3.amazonaws.com/heroku_pages/error.html">
<p>Application Error</p>
</iframe>
</body>
</html>
Additional notes: local development db is sqlite3 and production db (by Heroku standard is postgresql). 附加说明:本地开发db是sqlite3和生产db(通过Heroku标准是postgresql)。 The devel db was like that by default and I couldn't find a nice tutorial to convert to postgresql.
devel db默认是这样的,我找不到一个很好的教程来转换为postgresql。
Thanks a bunch! 谢谢你!
运行heroku run rake db:migrate
确实会改变Heroku上的数据库 - 所以它会改变你的生产数据库。
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