我在ActiveAdmin中为这些模型设置了一个嵌套表单(a:class_section has_many:class_dates):
class ClassDate < ActiveRecord::Base
belongs_to :class_section
validates :start_time, :presence => true
validates :end_time, :presence => true
end
和
class ClassSection < ActiveRecord::Base
belongs_to :class_course
has_many :class_dates
belongs_to :location
accepts_nested_attributes_for :class_dates
end
当我查看表单时,一切似乎都在正确的位置。但是,当我更新class_date时,它不会保存。
ActiveAdmin.register ClassSection do
permit_params :max_students, :min_students, :info, :class_course_id, :location_id
form do |f|
f.inputs "Details" do
f.input :class_course, member_label: :id_num
f.input :min_students, label: "Minunum Students"
f.input :max_students, label: "Maxiumum Students"
f.input :location
end
f.inputs do
f.input :info, label: "Additional Information"
end
f.inputs "Dates" do
f.has_many :class_dates, heading: false do |cd|
cd.input :start_time, :as => :datetime_picker
cd.input :end_time, :as => :datetime_picker
end
end
f.actions
end
index do
column :class_course
column :location
default_actions
end
filter :class_course
filter :location
show do |cs|
attributes_table do
row :class_course do
cs.class_course.id_num + " - " + cs.class_course.name
end
row :location
row :min_students, label: "Minunum Students"
row :max_students, label: "Maxiumum Students"
row :info, label: "Additional Information"
end
panel "Dates" do
attributes_table_for class_section.class_dates do
rows :start_time, :end_time
end
end
active_admin_comments
end
end
以下是ClassDates的ActiveAdmin文件:
ActiveAdmin.register ClassDate, as: "Dates" do
permit_params :start_time, :end_time, :class_section_id
belongs_to :class_section
end
你能看出为什么没有妥善保存的原因吗?
更新:我在AA中添加了以下代码,现在似乎可以正常运行:
controller do
def permitted_params
params.permit!
end
end
如果有更好的解决方案,请告诉我。感谢。
更新2:然而,有一个挥之不去的问题。我无法使用此表单删除ClassDates。
答案 0 :(得分:34)
您需要允许嵌套参数,但从不使用params.permit!
。这是非常不安全的。试试这个:
ActiveAdmin.register ClassSection do
permit_params :max_students, :min_students, :info, :class_course_id, :location_id,
class_dates_attributes: [ :id, :start_time, :end_time, :_destroy ]
form do |f|
# ...
f.inputs "Dates" do
f.has_many :class_dates, heading: false, allow_destroy: true do |cd|
cd.input :start_time, :as => :datetime_picker
cd.input :end_time, :as => :datetime_picker
end
end
f.actions
end
# ...
end
permitted_params
管理面板的配置(和ClassDate
)与ClassSection
管理面板中的许可参数无关。在应用程序中将它们视为单独的控制器。
在allow_destroy: true
调用中添加has_many
选项会在表单中添加一个复选框,以便您在表单提交时删除课时。