fix

app/models/olympia_school_data_fields.rb

@@ -21,9 +21,9 @@ class OlympiaSchoolDataFields
 	field :email , type: String , default: ''
 	field :enrollment , type: Fixnum , default: 0
 	field :approved , type: Boolean , default: true
-	field :sign_up_setting_id , type: String , default: SignUpSetting.last.id.to_s
+	field :sign_up_setting_id , type: String , default: SignUpSetting.where(:active=>true).last.id.to_s
 	after_destroy do |record|
-		OlympiaStudentDataField.where(:olympia_school_data_fields_id => record.id,:sign_up_setting_id=>SignUpSetting.last.id).destroy_all
+		OlympiaStudentDataField.where(:olympia_school_data_fields_id => record.id,:sign_up_setting_id=>SignUpSetting.where(:active=>true).last.id).destroy_all
 	end
 	after_initialize do
 	  if !self.new_record?
@@ -36,7 +36,7 @@ class OlympiaSchoolDataFields
 			self.save!
 		  end
 		  if self.enrollment == 0 #check enrollment student number
-		  	self.enrollment = OlympiaStudentDataField.where(:olympia_school_data_fields_id=>self.id,:sign_up_setting_id=>SignUpSetting.last.id).length
+		  	self.enrollment = OlympiaStudentDataField.where(:olympia_school_data_fields_id=>self.id,:sign_up_setting_id=>SignUpSetting.where(:active=>true).last.id).length
 		  	self.save!
 		  end
 		  if self.enrollment_limited.nil?
@@ -44,7 +44,7 @@ class OlympiaSchoolDataFields
 			self.save!
 		  end
 		  if self.sign_up_setting_id.nil?
-			self.sign_up_setting_id = SignUpSetting.last.id.to_s
+			self.sign_up_setting_id = SignUpSetting.where(:active=>true).last.id.to_s
 			self.save!
 		  end
 		  sign_up_setting = SignUpSetting.find(self.sign_up_setting_id) rescue nil

app/models/sign_up_setting.rb

@@ -39,6 +39,7 @@ class SignUpSetting
 		if self.active
 			SignUpSetting.where.not(:id=>self.id).each do |setting|
 				setting.active = false
+				setting.save!
 			end
 		end
 	end