小编use*_*293的帖子

当我使用heroku打开我的网络应用程序工作正常,但当我使用rails(localhost)时,我遇到了这个错误:

ActiveRecord::AdapterNotSpecified database configuration does not specify adapter

为什么是这样？

这是我的database.yml

# PostgreSQL. Versions 8.2 and up are supported.
#
# Install the pg driver:
#   gem install pg
# On OS X with Homebrew:
#   gem install pg -- --with-pg-config=/usr/local/bin/pg_config
# On OS X with MacPorts:
#   gem install pg -- --with-pg-config=/opt/local/lib/postgresql84/bin/pg_config
# On Windows:
#   gem install pg
#       Choose the win32 build.
#       Install PostgreSQL and put its /bin directory on your path.
#
# Configure Using Gemfile …

我正在尝试使用PostgreSQL,以便我可以部署到Heroku.但是我不能再运行localhost了么？我收到以下消息:

PG::ConnectionBad
FATAL: role "Myname" does not exist

这是我的databse.yml

development:
  adapter: postgresql
  database: my_database_development
  pool: 5
  timeout: 5000

test:
  adapter: postgresql
  database: my_database_test
  pool: 5
  timeout: 5000

production:
  adapter: postgresql
  database: my_database_production
  pool: 5
  timeout: 5000 

这是我的gemfile:

source 'https://rubygems.org'

# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails', '4.0.3'

# Use pg as the database for Active Record
gem 'pg'

# Use SCSS for stylesheets
gem 'sass-rails', '~> 4.0.0'

# Use Uglifier as compressor for JavaScript assets
gem …

每当我尝试检查元素时，什么也没有出现。我在 Chrome 上。我得到了

Elements | Network | Sources | Timeline | Profiles | Resources | Audits | Console

菜单，然后是以下每个菜单中的子菜单：

Console | Search | Emulation | Rendering

我去哪里查看源代码？以前我只是检查元素，它就会出现，我是否不小心搞乱了配置？

谢谢！

尝试时,我得到以下内容 rake db:migrate

rake aborted!
PG::ConnectionBad: fe_sendauth: no password supplied

Tasks: TOP => db:migrate
(See full trace by running task with --trace)

转到我的localhost时,我也收到类似的消息

fe_sendauth: no password supplied

我的rails服务器和rails控制台也不起作用

我一直在尝试一些事情,这就是我的gemfile目前的样子:

source 'https://rubygems.org'
ruby '2.0.0'

# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails', '4.0.3'

# Use SCSS for stylesheets
gem 'sass-rails', '~> 4.0.0'

# Use Uglifier as compressor for JavaScript assets
gem 'uglifier', '>= 1.3.0'

# Use CoffeeScript for .js.coffee assets and views
gem 'coffee-rails', '~> 4.0.0'

# See …

我正在构建一个示例预注册页面,人们可以在应用程序启动之前注册他们的电子邮件.当我输入时:

heroku open

我的浏览器出现以下错误

We're sorry, but something went wrong.

If you are the application owner check the logs for more information.

检查我的日志后,我发现了这个奇怪的错误:

[36m2014-04-28T08:22:01.921791+00:00 app[web.1]:?[0m PG::UndefinedTable: ERROR:
 relation "premails" does not exist

那是什么意思？我有以下迁移:

class CreatePremails < ActiveRecord::Migration
  def change
    create_table :premails do |t|

        t.text :email

      t.timestamps
    end
  end
end

和型号:

class Premail < ActiveRecord::Base

end

如何在Heroku上部署它需要做什么？我不确定这是不是问题,或者我是否需要更改我的database.yml文件.目前我在那里有这个:

# SQLite version 3.x
#   gem install sqlite3
#
#   Ensure the SQLite 3 gem is defined in your Gemfile
#   gem 'sqlite3'
development: …

我无法摆脱页面顶部正文标签上的白边.我将添加必要的.body格式,但它仍然存在,我的检查器仍然显示默认的8px填充由于某种原因.为什么身体不会捡起来？

@import "bootstrap";
@import url(http://fonts.googleapis.com/css?family=Lato|Open+Sans+Condensed:300);


.body {
    margin:0px;
}

.container-top {
    text-align: center;
    font-family: 'Open Sans Condensed', sans-serif;
    background-color: #424b51;
    font-size: 25px;
}