Ruby on rails 创建我的第一个关联对象时遇到问题：学校的教师

要在web浏览器中创建学校内的教师。不确定具体需要什么代码来执行此操作。使用脚手架创建学校，控制器和模型创建教师。我的目标是在创建一所学校之后，能够增加教师

学校模式

    class School < ActiveRecord::Base
    has_many :teachers
end

班级学校

教师模式

    class Teacher < ActiveRecord::Base
  belongs_to :school
end

班主任

校董

    class SchoolsController < ApplicationController
  before_action :set_school, only: [:show, :edit, :update, :destroy]

  # GET /schools
  # GET /schools.json
  def index
    @schools = School.all
  end

  # GET /schools/1
  # GET /schools/1.json
  def show
  end

  # GET /schools/new
  def new
    @school = School.new
  end

  # GET /schools/1/edit
  def edit
  end

  # POST /schools
  # POST /schools.json
  def create
    @school = School.new(school_params)

    respond_to do |format|
      if @school.save
        format.html { redirect_to @school, notice: 'School was successfully created.' }
        format.json { render :show, status: :created, location: @school }
      else
        format.html { render :new }
        format.json { render json: @school.errors, status: :unprocessable_entity }
      end
    end
  end

  # PATCH/PUT /schools/1
  # PATCH/PUT /schools/1.json
  def update
    respond_to do |format|
      if @school.update(school_params)
        format.html { redirect_to @school, notice: 'School was successfully updated.' }
        format.json { render :show, status: :ok, location: @school }
      else
        format.html { render :edit }
        format.json { render json: @school.errors, status: :unprocessable_entity }
      end
    end
  end

  # DELETE /schools/1
  # DELETE /schools/1.json
  def destroy
    @school.destroy
    respond_to do |format|
      format.html { redirect_to schools_url, notice: 'School was successfully destroyed.' }
      format.json { head :no_content }
    end
  end

  private
    # Use callbacks to share common setup or constraints between actions.
    def set_school
      @school = School.find(params[:id])
    end

    # Never trust parameters from the scary internet, only allow the white list through.
    def school_params
      params.require(:school).permit(:name)
    end
end

    class TeachersController < ApplicationController
end

class-SchoolsController

教师总监

    class SchoolsController < ApplicationController
  before_action :set_school, only: [:show, :edit, :update, :destroy]

  # GET /schools
  # GET /schools.json
  def index
    @schools = School.all
  end

  # GET /schools/1
  # GET /schools/1.json
  def show
  end

  # GET /schools/new
  def new
    @school = School.new
  end

  # GET /schools/1/edit
  def edit
  end

  # POST /schools
  # POST /schools.json
  def create
    @school = School.new(school_params)

    respond_to do |format|
      if @school.save
        format.html { redirect_to @school, notice: 'School was successfully created.' }
        format.json { render :show, status: :created, location: @school }
      else
        format.html { render :new }
        format.json { render json: @school.errors, status: :unprocessable_entity }
      end
    end
  end

  # PATCH/PUT /schools/1
  # PATCH/PUT /schools/1.json
  def update
    respond_to do |format|
      if @school.update(school_params)
        format.html { redirect_to @school, notice: 'School was successfully updated.' }
        format.json { render :show, status: :ok, location: @school }
      else
        format.html { render :edit }
        format.json { render json: @school.errors, status: :unprocessable_entity }
      end
    end
  end

  # DELETE /schools/1
  # DELETE /schools/1.json
  def destroy
    @school.destroy
    respond_to do |format|
      format.html { redirect_to schools_url, notice: 'School was successfully destroyed.' }
      format.json { head :no_content }
    end
  end

  private
    # Use callbacks to share common setup or constraints between actions.
    def set_school
      @school = School.find(params[:id])
    end

    # Never trust parameters from the scary internet, only allow the white list through.
    def school_params
      params.require(:school).permit(:name)
    end
end

    class TeachersController < ApplicationController
end

类教师控制器

学校/风景/表演

    <p id="notice"><%= notice %></p>

<p>
  <strong>Name:</strong>
  <%= @school.name %>
</p>

<%= link_to 'Edit', edit_school_path(@school) %> |
<%= link_to 'Back', schools_path %>

名称：

|

您可以在学校或教师控制器中执行此操作，您可能希望它处于创建状态，当然是更新状态。假设学校控制器和params包含教师名称为：teacher_name

def update
  @school.teachers = Teacher.new(school_params[:teacher_name])

  respond_to do |format|
    ... snip for brevity ...
  end
end

我假设您的数据库表已经使用[migrations]进行了设置。

从教师端：

---

在教师新页面（表单）中，您需要有一个选择框，其中包含教师可以归属的学校，这些学校的ID值（来自数据库）。教师模型将学校id作为其属性之一，一旦您进入rails控制台并键入类似于学校的内容。首先，教师您将获得该学校所有教师的列表。

inye：我尝试了几种不同的方法，但在如何在学校/节目中创建教师的问题上，我遇到了麻烦。我希望学校用户能够创建教师，一旦登录到帐户。希望有道理。谢谢马特。我要试试这个。正如我在上面的回复中提到的，我希望学校用户能够在他们的学校中创建教师。这意味着现在，我的目标是让“教师创造形式”在学校表演中可见。上面的代码很有帮助，我会努力完成这项工作。谢谢你的回复。我能够按照你描述的方式成功地完成它。我更倾向于学校用户，他们可以选择创建教师作为学校的一部分，而不是相反。可以这样想：您是一所学校的管理员，登录后，希望将教师添加到您的学校。这就是我的目标。在我原来的帖子里，我可以说得更清楚。希望这是有道理的。