Add administrate

app/controllers/admin/application_controller.rb

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+# All Administrate controllers inherit from this
+# `Administrate::ApplicationController`, making it the ideal place to put
+# authentication logic or other before_actions.
+#
+# If you want to add pagination or other controller-level concerns,
+# you're free to overwrite the RESTful controller actions.
+module Admin
+  class ApplicationController < Administrate::ApplicationController
+    before_action :authenticate_admin
+
+    def authenticate_admin
+      # TODO Add authentication logic here.
+    end
+
+    # Override this value to specify the number of elements to display at a time
+    # on index pages. Defaults to 20.
+    # def records_per_page
+    #   params[:per_page] || 20
+    # end
+  end
+end

app/controllers/admin/attendances_controller.rb

@@ -0,0 +1,46 @@
+module Admin
+  class AttendancesController < Admin::ApplicationController
+    # Overwrite any of the RESTful controller actions to implement custom behavior
+    # For example, you may want to send an email after a foo is updated.
+    #
+    # def update
+    #   super
+    #   send_foo_updated_email(requested_resource)
+    # end
+
+    # Override this method to specify custom lookup behavior.
+    # This will be used to set the resource for the `show`, `edit`, and `update`
+    # actions.
+    #
+    # def find_resource(param)
+    #   Foo.find_by!(slug: param)
+    # end
+
+    # The result of this lookup will be available as `requested_resource`
+
+    # Override this if you have certain roles that require a subset
+    # this will be used to set the records shown on the `index` action.
+    #
+    # def scoped_resource
+    #   if current_user.super_admin?
+    #     resource_class
+    #   else
+    #     resource_class.with_less_stuff
+    #   end
+    # end
+
+    # Override `resource_params` if you want to transform the submitted
+    # data before it's persisted. For example, the following would turn all
+    # empty values into nil values. It uses other APIs such as `resource_class`
+    # and `dashboard`:
+    #
+    # def resource_params
+    #   params.require(resource_class.model_name.param_key).
+    #     permit(dashboard.permitted_attributes(action_name)).
+    #     transform_values { |value| value == "" ? nil : value }
+    # end
+
+    # See https://administrate-demo.herokuapp.com/customizing_controller_actions
+    # for more information
+  end
+end

app/controllers/admin/courses_controller.rb

@@ -0,0 +1,46 @@
+module Admin
+  class CoursesController < Admin::ApplicationController
+    # Overwrite any of the RESTful controller actions to implement custom behavior
+    # For example, you may want to send an email after a foo is updated.
+    #
+    # def update
+    #   super
+    #   send_foo_updated_email(requested_resource)
+    # end
+
+    # Override this method to specify custom lookup behavior.
+    # This will be used to set the resource for the `show`, `edit`, and `update`
+    # actions.
+    #
+    # def find_resource(param)
+    #   Foo.find_by!(slug: param)
+    # end
+
+    # The result of this lookup will be available as `requested_resource`
+
+    # Override this if you have certain roles that require a subset
+    # this will be used to set the records shown on the `index` action.
+    #
+    # def scoped_resource
+    #   if current_user.super_admin?
+    #     resource_class
+    #   else
+    #     resource_class.with_less_stuff
+    #   end
+    # end
+
+    # Override `resource_params` if you want to transform the submitted
+    # data before it's persisted. For example, the following would turn all
+    # empty values into nil values. It uses other APIs such as `resource_class`
+    # and `dashboard`:
+    #
+    # def resource_params
+    #   params.require(resource_class.model_name.param_key).
+    #     permit(dashboard.permitted_attributes(action_name)).
+    #     transform_values { |value| value == "" ? nil : value }
+    # end
+
+    # See https://administrate-demo.herokuapp.com/customizing_controller_actions
+    # for more information
+  end
+end

app/controllers/admin/lectures_controller.rb

@@ -0,0 +1,46 @@
+module Admin
+  class LecturesController < Admin::ApplicationController
+    # Overwrite any of the RESTful controller actions to implement custom behavior
+    # For example, you may want to send an email after a foo is updated.
+    #
+    # def update
+    #   super
+    #   send_foo_updated_email(requested_resource)
+    # end
+
+    # Override this method to specify custom lookup behavior.
+    # This will be used to set the resource for the `show`, `edit`, and `update`
+    # actions.
+    #
+    # def find_resource(param)
+    #   Foo.find_by!(slug: param)
+    # end
+
+    # The result of this lookup will be available as `requested_resource`
+
+    # Override this if you have certain roles that require a subset
+    # this will be used to set the records shown on the `index` action.
+    #
+    # def scoped_resource
+    #   if current_user.super_admin?
+    #     resource_class
+    #   else
+    #     resource_class.with_less_stuff
+    #   end
+    # end
+
+    # Override `resource_params` if you want to transform the submitted
+    # data before it's persisted. For example, the following would turn all
+    # empty values into nil values. It uses other APIs such as `resource_class`
+    # and `dashboard`:
+    #
+    # def resource_params
+    #   params.require(resource_class.model_name.param_key).
+    #     permit(dashboard.permitted_attributes(action_name)).
+    #     transform_values { |value| value == "" ? nil : value }
+    # end
+
+    # See https://administrate-demo.herokuapp.com/customizing_controller_actions
+    # for more information
+  end
+end