[英]How to connect to postgresql using url
I had asked an earlier question which did not get any replies. 我问了一个较早的问题 ,没有得到任何答复。
Basically I get an error invalid database url
when I try to do heroku db:push
. 基本上,当我尝试执行heroku db:push
时,我得到一个错误的invalid database url
。
I figured I can try explicitly providing the database url. 我认为我可以尝试显式提供数据库URL。
I tried: 我试过了:
heroku db:push postgres://postgres@localhost/myrailsdb
But that gave error: 但这给了错误:
Failed to connect to database:
Sequel::DatabaseConnectionError -> PGError fe_sendauth: no password supplied
What is the format for providing username and password? 提供用户名和密码的格式是什么?
尝试heroku db:push postgres://username:password@localhost/myrailsdb
。
Here's how to do it in a Ruby script: 这是在Ruby脚本中执行此操作的方法:
# Connect to database.
uri = URI.parse(ENV['DATABASE_URL'])
postgres = PG.connect(uri.hostname, uri.port, nil, nil, uri.path[1..-1], uri.user, uri.password)
# List all tables.
tables = postgres.exec('SELECT * FROM pg_catalog.pg_tables')
tables.num_tuples.times do |i|
p tables[i]
end
Edit your postgresql configuration (pg_hba.conf) file and change 'host' type method to 'trust'. 编辑您的postgresql配置(pg_hba.conf)文件,并将“主机”类型方法更改为“信任”。 But be aware that this is not secure. 但是请注意,这是不安全的。
# TYPE DATABASE USER ADDRESS METHOD
# "local" is for Unix domain socket connections only
local all all trust
# IPv4 local connections:
host all all 127.0.0.1/32 trust
# IPv6 local connections:
host all all ::1/128 md5
Restart your postgresql server and re-run the command 重新启动您的postgresql服务器并重新运行命令
$ heroku db:push postgres://postgres@localhost/myrailsdb
Here is the reference to my answer: https://stackoverflow.com/a/7667344/181677 这是对我的答案的参考: https : //stackoverflow.com/a/7667344/181677
Heroku cli更改了命令。
heroku pg:push postgres://username:password@localhost/myrailsdb
according to documentation 根据文件
postgresql://[user[:password]@][netloc][:port][/dbname][?param1=value1&...]
examples 例子
postgresql://
postgresql://localhost
postgresql://localhost:5432
postgresql://localhost/mydb
postgresql://user@localhost
postgresql://user:secret@localhost
postgresql://other@localhost/otherdb?connect_timeout=10&application_name=myapp
postgresql://localhost/mydb?user=other&password=secret
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