html - 选定数据(静态选择框)在编辑 View 中不显示

（Rails 4 Ruby 2.2）应用程序的编辑视图中的选择框有问题。

选择框如下所示：

 <%= f.select(:primary_type, options_for_select([['RESIDENT - COMPLAINT',

'RESIDENT - COMPLAINT'], ['THEFT', 'THEFT'], ['PROPERTY DAMAGE', 'PROPERTY

DAMAGE'], ['DOORS / WINDOWS BROKEN', 'DOORS / WINDOWS BROKEN'], ['WATER LEAKING',

'WATER LEAKING'], ['FLOODING', 'FLOODING'],['ACCIDENT - PERSONAL INJURY',

'ACCIDENT - PERSONAL INJURY'], ['ACCIDENT - VEHICLE', 'ACCIDENT - VEHICLE'],

['ACCIDENT - OTHER', 'ACCIDENT - OTHER'], ['FENCES / GATES BROKEN', 'FENCES /

GATES BROKEN'], ['SUSPICIOUS ACTIVITY - PERSON', 'SUSPICIOUS ACTIVITY - PERSON'],

['SUSPICIOUS ACTIVITY - VEHICLE', 'SUSPICIOUS ACTIVITY - VEHICLE'], ['VANDALISM -

REPORTING', 'VANDALISM - REPORTING'], ['VANDALISM - IN PROGRESS', 'VANDALISM - IN

PROGRESS'], ['HAZZARD REPORT - SAFETY', 'HAZZARD REPORT - SAFETY'], ['HAZZARD

REPORT - FIRE', 'HAZZARD REPORT - FIRE'], ['FIRE - ACTIVE', 'FIRE - ACTIVE'],

['PARKING COMPLAINT - RESIDENT', 'PARKING COMPLAINT - RESIDENT'], ['PARKING

COMPLAINT - VISITOR', 'PARKING COMPLAINT - VISITOR'], ['BREAK AND ENTER -

ATTEMPT', 'BREAK AND ENTER - ATTEMPT'], ['BREAK AND ENTER - CONFIRMED', 'BREAK AND

ENTER - CONFIRMED'], ['ALARM PANEL - PROBLEMS', ' ALARM PANEL - PROBLEMS'], ['GAS

LEAK', 'GAS LEAK'], ['EXPLOSION', 'EXPLOSION'], ['DAMAGE - WEATHER RELATED',

'DAMAGE - WEATHER RELATED']]), { include_blank: true }, class: 'input-group input-

group-lg', id: 'primary-box')%>

最初选择时，它将保存到DB，并已通过Rails Console进行确认，但是不知道如何在进入编辑页面时将其作为主要值显示在选择框中。

我的控制器如下：

class CallsController < ApplicationController
  before_action :set_call, only: [:show, :edit, :update, :destroy]

  # GET /calls
  # GET /calls.json
  def index
    @calls = Call.all
    @active_calls = @calls.select{|x| x.status == 'ACTIVE'}
    @pending_calls = @calls.select{|x| x.status == 'PENDING'}
  end

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

  # GET /calls/new
  def new
    @call = Call.new
  end

  # GET /calls/1/edit
  def edit
  end

  # POST /calls
  # POST /calls.json
  def create
    @call = Call.new(call_params)

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

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

  # DELETE /calls/1
  # DELETE /calls/1.json
  def destroy
    @call.destroy
    respond_to do |format|
      format.html { redirect_to calls_url, notice: 'Call was successfully destroyed.' }
      format.json { head :no_content }
    end
  end

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

    # Never trust parameters from the scary internet, only allow the white list through.
    def call_params
      params.require(:call).permit(:call_time, :status, :primary_type, :secondary_type, :site, :address, :unit_1, :unit_2, :unit_3, :unit_4, :call_details, :unit_on_scene, :unit_clear, :call_num, :site_id)
    end
end

任何帮助都感激不尽！在此先感谢您！如果需要更多信息，请让我知道，请在这里提出。

最佳答案

如果您询问如何设置默认值，请遵循rails api docs中的答案

例如：

<%= f.select(:primary_type,  options_for_select([["Text1", "value1"],["Text2","value2"] "value2") %>

编辑：

在编辑页面上，您应该在控制器中设置一个变量，例如@call = Call.find(params[:id])

然后在视图中可以执行以下操作：

<%= f.select(:primary_type,  options_for_select([<your_values>], @call.primary_type ) %>

关于html - 选定数据(静态选择框)在编辑 View 中不显示，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/33643559/