我有一个2名员工的业务。每个员工都有很多消息。如何将散列添加到数组?
当我运行命令:
business.employees.each do |employee|
puts employee.messages.group_by &:from
end
我得到正确的输出:
{100=>[#<Message id: 3, content: "Needs more training", from: 100, employee_id: 1>]}
{101=>[#<Message id: 2, content: "Very lazy.", from: 101, employee_id: 2>], 102=>[#<Message id: 1, content: "Fantastic.", created_at: "2014-03-03 12:01:28", updated_at: "2014-03-03 12:01:28", from: 102, employee_id: 2>]}
但我不想把我想要添加的每个哈希输出到一个数组等等我可以展示他们。
所以,当我运行命令
grouped_messages = []
business.employees.each do |employee|
grouped_messages << employee.short_messages.group_by &:from
end
我得到的错误:expecting keyword_end
尝试不忽略括号。 – sawa
我的第一个想法以及@sawa –