字段验证 Ruby on Rails

Question

我的表单字段验证遇到了一些问题。我有两个文本字段需要验证才能持续到下一页。验证运行正确，但验证消息显示为 rails 错误。

但我希望出现如下错误

任何人都知道为什么它的显示像 rails 错误。

型号：

class Assignment < ActiveRecord::Base
  include Workflow

  belongs_to :folder
  belongs_to :employee

  after_initialize :init_start_dateenter code here

  validates_presence_of :folder_id, :employee_id
end

控制器：

class AssignmentsController < ApplicationController
  def create
    @assignment = Assignment.new(assignment_params)

    respond_to do |format|
      if @assignment.save!
        format.html { redirect_to @assignment, notice: 'Assignment was successfully created.' }
        format.json { render :show, status: :created, location: @assignment }
        @assignment.folder.update({status: 'assigned'})
      else
        format.html { render :new }
        format.json { render json: @assignment.errors, status: :unprocessable_entity }
      end
    end
  end

end

我还有两个表单来验证字段。在这种形式中，验证错误会正确显示。

Answer 1

您需要从保存中删除!，因为这会在该行引发错误，如果您省略!，它只会返回一个布尔值（然后呈现错误或成功。

所以

class AssignmentsController < ApplicationController
  def create
    @assignment = Assignment.new(assignment_params)

    respond_to do |format|
      if @assignment.save
        format.html { redirect_to @assignment, notice: 'Assignment was successfully created.' }
        format.json { render :show, status: :created, location: @assignment }
        @assignment.folder.update({status: 'assigned'})
      else
        format.html { render :new }
        format.json { render json: @assignment.errors, status: :unprocessable_entity }
      end
    end
  end

end