PG::ConnectionBad Rails 和 PostgreSQL 在开发 MacOS 上

Question

我在 SQlite 和 MySQL 中使用过 Rails。第一次使用 PostgreSQL。刚刚在我的本地机器上安装了 PostgreSQL。使用 Heroku 进行生产。

每次我运行 rake db:migrate 或 rake db:create 我都会收到以下错误：

PG::ConnectionBad: fe_sendauth: no password supplied

我使用 Homebrew 安装了 PostgreSQL，但从未设置用户或密码。 这是我的 Postgres 设置：

Daves-MBP-2:project dave$ ps aux | grep postgres 
postgres           670   0.0  0.0  2466764   1816   ??  S    Fri10AM   0:00.33 /System/Library/Frameworks/CoreServices.framework/Frameworks/Metadata.framework/Versions/A/Support/mdflagwriter
postgres           658   0.0  0.0  2514516   3032   ??  S    Fri10AM   0:01.31 /usr/sbin/distnoted agent
postgres           657   0.0  0.0  2542724   6336   ??  S    Fri10AM   0:05.69 /usr/libexec/trustd --agent
postgres           656   0.0  0.0  2545304   6676   ??  S    Fri10AM   0:04.28 /usr/libexec/lsd
postgres           655   0.0  0.0  2515008   2596   ??  S    Fri10AM   0:00.07 /usr/sbin/cfprefsd agent
postgres           240   0.0  0.0  2508940    920   ??  Ss   Fri10AM   0:01.06 postgres: stats collector process    
postgres           239   0.0  0.0  2653940   1860   ??  Ss   Fri10AM   0:00.64 postgres: autovacuum launcher process    
postgres           238   0.0  0.0  2653940    832   ??  Ss   Fri10AM   0:01.00 postgres: wal writer process    
postgres           237   0.0  0.0  2653940    900   ??  Ss   Fri10AM   0:01.02 postgres: writer process    
postgres           236   0.0  0.0  2653940    896   ??  Ss   Fri10AM   0:00.04 postgres: checkpointer process    
postgres           233   0.0  0.0  2508940    728   ??  Ss   Fri10AM   0:00.00 postgres: logger process    
postgres           108   0.0  0.0  2654196   3372   ??  Ss   Fri10AM   0:00.32 /Library/PostgreSQL/9.6/bin/postmaster -D/Library/PostgreSQL/9.6/data
dave             68244   0.0  0.0  2442020   2012 s000  S+    4:28PM   0:00.00 grep postgres

这是我的 database.yml 文件

# SQLite version 3.x
#   gem install sqlite3
#
#   Ensure the SQLite 3 gem is defined in your Gemfile
#   gem 'sqlite3'
#
default: &default
  adapter: sqlite3
  pool: 5
  timeout: 5000

development:
  adapter: postgresql
  encoding: unicode
  database: "mydatabase"


# Warning: The database defined as "test" will be erased and
# re-generated from your development database when you run "rake".
# Do not set this db to the same as development or production.
test:
  <<: *default
  database: db/test.sqlite3

production:
  adapter: postgresql
  encoding: unicode
  url: "HEROKU URL"

这是我从 pg_hba.conf 中获得的设置 - cd /usr/local/var/postgres/ - 打开 pg_hba.conf

我错过了什么？

谢谢

编辑

以下是来自以下 cmets 的内容：

第一个文件“com.edb.launchd.postgresql-9.6.plist”：

    <?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN"
        "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>Disabled</key>
    <false/>
        <key>Label</key>
        <string>com.edb.launchd.postgresql-9.6</string>
        <key>ProgramArguments</key>
        <array>
                <string>/Library/PostgreSQL/9.6/bin/postmaster</string>
                <string>-D/Library/PostgreSQL/9.6/data</string>
        </array>
        <key>RunAtLoad</key>
        <true/>
    <key>UserName</key>
    <string>postgres</string>
    <key>KeepAlive</key>
    <dict>
         <key>SuccessfulExit</key>
         <false/>
    </dict>
</dict>
</plist>

第二个文件“homebrew.mxcl.postgresql.plist”：

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
  <key>KeepAlive</key>
  <true/>
  <key>Label</key>
  <string>homebrew.mxcl.postgresql</string>
  <key>ProgramArguments</key>
  <array>
    <string>/usr/local/opt/postgresql/bin/postgres</string>
    <string>-D</string>
    <string>/usr/local/var/postgres</string>
  </array>
  <key>RunAtLoad</key>
  <true/>
  <key>WorkingDirectory</key>
  <string>/usr/local</string>
  <key>StandardErrorPath</key>
  <string>/usr/local/var/log/postgres.log</string>
</dict>
</plist>

Answer 1

在编辑器中打开文件/Library/PostgreSQL/9.6/data/pg_hba.conf。确保 USER 和 METHOD 的值与以下示例匹配（all 和 trust）。

# 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                 trust

保存文件，然后从终端运行pg_ctl reload -D /Library/PostgreSQL/9.6/data。