ruby-on-rails - 事件管理员 :select drop-down defaults to current value in development but defaults to blank in production

Question

我有以下 ActiveAdmin 表单:

form do |f|
  f.inputs "Timesheet Details" do
    f.input :jobs_assigned_worker, :label => "Worker", as: :select, collection: Worker.all
    f.input :worked_time_hours,    :label => "Worked Time (Hours)"
    f.input :worked_time_mins,     :label => "Worked Time (Minutes)"
    f.input :driving_time_hours,   :label => "Driving Time (Hours)"
    f.input :driving_time_mins,    :label => "Driving Time (Minutes)"
    f.input :spent_dollars,        :label => "Extra Money Spent"
  end
  f.actions
end

当我在编辑 View 中使用此表单时，选择下拉列表自动默认为当前值。然而在生产中，由于某种原因，下拉列表默认为顶部的空白值(为什么那个空白值仍然存在？)。

编辑

问题似乎是 ActiveAdmin 不理解关联，默认情况下无法选择关联对象。我需要弄清楚如何为关联编写 f.input 代码。该表格用于时间表。时间表 有_many 个 JobsAssignedWorker，每个 JobsAssignedWorker 都有一个 Worker。

Answer 1

如果你想包含空白值:

f.input :jobs_assigned_worker,
  label: 'Worker',
  as: :select,
  collection: -> { Worker.pluck(:name) },
  include_blank: true

如果您不想包含空白值:

f.input :jobs_assigned_worker,
  label: 'Worker',
  as: :select,
  collection: -> { Worker.pluck(:name) },
  include_blank: false

如果你想有空值，但不想让它作为一个选项:

f.input :jobs_assigned_worker,
  label: 'Worker',
  as: :select,
  collection: -> { Worker.pluck(:name) },
  include_blank: true,
  allow_blank: false