Ruby on rails Rails验证在创建时有效，但在更新时无效

这是我的密码：

validate :ranges_overlap

def ranges_overlap
    Commission.where("commission_type = ?",self.commission_type).each do |c|
        for i in self.start_range.to_i..self.end_range.to_i do
            if i >= c.start_range and i <= c.end_range
                self.errors.add(:start_range, "Range overlaps existing range: #{c.start_range} - #{c.end_range}") 
                break
            end
        end
    end     
end

因此，它允许我进行更新，但它有效地禁用了验证，使用此代码，我可以在创建和更新时重叠任何范围，就好像我根本没有进行验证一样

我绝对没有意识到一些简单的事情。我的验证有什么错

谢谢

编辑：控制器上的更新操作

def update
    respond_to do |format|
      if @commission.update(commission_params)
        format.html { redirect_to commissions_path, notice: 'Commission updated successfully' }
        format.json { render :show, status: :ok, location: commissions_path }
      else
        format.html { render :edit }
        format.json { render json: @commission.errors, status: :unprocessable_entity }
      end
    end
end

这起到了作用：

def ranges_overlap
    Commission.where("commission_type = ?",self.commission_type).each do |c|
        unless self.id == c.id
            for i in self.start_range.to_i..self.end_range.to_i do
                if i >= c.start_range and i <= c.end_range
                    self.errors.add(:start_range, "Range overlaps existing range: #{c.start_range} - #{c.end_range}") 
                    break
                end
            end
        end 
    end
end

def范围\u重叠
佣金。其中（“佣金类型=？”，self.Commission类型）。每个do | c|
除非self.id==c.id
因为我在self.start\u range.to\u i..self.end\u range.to\u i do
如果i>=c.start_range，并且我请显示您的控制器更新操作，请尝试此
Commission.where（“id不在（？）中，Commission_type=？”，self.id，self.Commission_type）。每个都执行

def ranges_overlap
    Commission.where("commission_type = ?",self.commission_type).each do |c|
        unless self.id == c.id
            for i in self.start_range.to_i..self.end_range.to_i do
                if i >= c.start_range and i <= c.end_range
                    self.errors.add(:start_range, "Range overlaps existing range: #{c.start_range} - #{c.end_range}") 
                    break
                end
            end
        end 
    end
end