当请求了一个数据库连接池但尚未定义时抛出。
方法
- N
Attributes
| [R] | connection_name | |
| [R] | role | |
| [R] | shard |
类公共方法
new(message = nil, connection_name: nil, role: nil, shard: nil) 链接
来源: 显示 | 在 GitHub 上
# File activerecord/lib/active_record/errors.rb, line 89 def initialize(message = nil, connection_name: nil, role: nil, shard: nil) super(message) @connection_name = connection_name @role = role @shard = shard end