ActiveAdmin:选择下拉默认为开发中的当前值,但在生产中默认为空白

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

当我在编辑视图中使用此表单时,选择下拉列表会自动默认为当前值.但是在生产中,下拉列表由于某种原因默认为顶部的空白值(为什么那里的空白值呢？).

编辑

问题似乎是ActiveAdmin不理解关联,并且默认情况下无法选择关联对象.我需要弄清楚如何f.input为关联编码.表格适用于时间表.时间表has_manyJobsAssignedWorkers和每个JobsAssignedWorker都有一个Worker.

Answer 1

如果要包含空白值:

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

如果您想要空白值,但不想允许它作为选项:

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

Answer 2

尝试设置“include_blank”选项。

form do |f|
    f.inputs "Timesheet Details" do
        f.input :jobs_assigned_worker, :label => "Worker", as: :select, collection: Worker.all, include_blank: false
        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