ActiveRecord的错误

Question

我有两个模型类，用于EmployeeDetail

class Designation < ActiveRecord::Base 
    attr_accessible :name 
    validates :name, presence: true, uniqueness: { case_sensitive: false } 
    has_many :employee_details 
    accepts_nested_attributes_for :employee_details 
end 

和

class EmployeeDetail < ActiveRecord::Base 
    belongs_to :Designation 
    attr_accessible :bloodGroup, :dob, :doc, :doj, :empId, :name, :panNo, :status, :Designation 
end 

我已经生成的默认支架。从EmployeeDetail页面，当我尝试创建并在指定文本框中输入整数值时，它给我错误 ActiveRecord::AssociationTypeMismatch in EmployeeDetailsController#create Designation(#81846160) expected, got String(#75419260)。

任何人都可以帮我理清这个问题吗？ EmployeeDetailController＃创建： - DEF创建 @employee_detail = EmployeeDetail.new（PARAMS [：employee_detail]）

respond_to do |format| 
    if @employee_detail.save 
    format.html { redirect_to @employee_detail, notice: 'Employee detail was successfully created.' } 
    format.json { render json: @employee_detail, status: :created, location: @employee_detail } 
    else 
    format.html { render action: "new" } 
    format.json { render json: @employee_detail.errors, status: :unprocessable_entity } 
    end 
end 

末

Answer 1

当你任何模型关联，则应该使用模型的小写版本名称。

变化：

belongs_to :Designation 

到：

belongs_to :designation