我定义了以下资源:
resources :buildings do
resources :buildings_regular_hours
end
我的模型如下:
class Building < ApplicationRecord
has_many :building_regular_hours
def to_s
name
end
end
class BuildingsRegularHours < ApplicationRecord
belongs_to :building
end
我正在尝试创建一个表单,以允许创建和编辑BuildingRegularHours
。目前,我的表单会显示在#edit
上,但不会显示在#new
上。
new.html.erb:
<%= render 'form', buildings_regular_hour: @buildings_regular_hour, building: @building %>
edit.html.erb:
<h1>Editing Buildings Regular Hour</h1>
<%= render 'form', buildings_regular_hour: @buildings_regular_hour, building: @building %>
<%= link_to 'Back', building_buildings_regular_hour_path(@building) %>
_form.html.erb:
<%= form_for([building,buildings_regular_hour]) do |f| %>
<% if buildings_regular_hour.errors.any? %>
<div id="error_explanation">
<h2><%= pluralize(buildings_regular_hour.errors.count, "error") %> prohibited this buildings_regular_hour from being saved:</h2>
<ul>
<% buildings_regular_hour.errors.full_messages.each do |message| %>
<li><%= message %></li>
<% end %>
</ul>
</div>
<% end %>
<div class="field">
<%= f.label :building_id %>
<%= f.text_field :building_id %>
</div>
<div class="field">
<%= f.label :start_date %>
<%= f.date_select :start_date %>
</div>
<div class="field">
<%= f.label :end_date %>
<%= f.date_select :end_date %>
</div>
<div class="actions">
<%= f.submit %>
</div>
<% end %>
buildings_regular_hours_controller.rb:
class BuildingsRegularHoursController < ApplicationController
before_action :set_buildings_regular_hour, only: [:show, :edit, :update, :destroy]
before_action :set_building
# GET /buildings_regular_hours
# GET /buildings_regular_hours.json
def index
@buildings_regular_hours = BuildingsRegularHours.all
end
# GET /buildings_regular_hours/1
# GET /buildings_regular_hours/1.json
def show
end
# GET /buildings_regular_hours/new
def new
@buildings_regular_hour = BuildingsRegularHours.new
end
# GET /buildings_regular_hours/1/edit
def edit
end
# POST /buildings_regular_hours
# POST /buildings_regular_hours.json
def create
@buildings_regular_hour = BuildingsRegularHours.new(buildings_regular_hour_params)
respond_to do |format|
if @buildings_regular_hour.save
format.html { redirect_to @buildings_regular_hour, notice: 'Buildings regular hours was successfully created.' }
format.json { render :show, status: :created, location: @buildings_regular_hour }
else
format.html { render :new }
format.json { render json: @buildings_regular_hour.errors, status: :unprocessable_entity }
end
end
end
# PATCH/PUT /buildings_regular_hours/1
# PATCH/PUT /buildings_regular_hours/1.json
def update
respond_to do |format|
if @buildings_regular_hour.update(buildings_regular_hour_params)
format.html { redirect_to @buildings_regular_hour, notice: 'Buildings regular hours was successfully updated.' }
format.json { render :show, status: :ok, location: @buildings_regular_hour }
else
format.html { render :edit }
format.json { render json: @buildings_regular_hour.errors, status: :unprocessable_entity }
end
end
end
# DELETE /buildings_regular_hours/1
# DELETE /buildings_regular_hours/1.json
def destroy
@buildings_regular_hour.destroy
respond_to do |format|
format.html { redirect_to buildings_regular_hours_index_url, notice: 'Buildings regular hours was successfully destroyed.' }
format.json { head :no_content }
end
end
private
# Use callbacks to share common setup or constraints between actions.
def set_buildings_regular_hour
@buildings_regular_hour = BuildingsRegularHours.find(params[:id])
end
def set_building
@building = Building.find(params[:building_id])
end
# Never trust parameters from the scary internet, only allow the white list through.
def buildings_regular_hour_params
params.require(:buildings_regular_hour).permit(:building_id, :start_date, :end_date, :sunday_id, :monday_id, :tuesday_id, :wednesday_id, :thursday_id, :friday_id, :saturday_id)
end
end
通过控制台添加BuildingRegularHours
后,我尝试了#edit
操作,它运行正常,按预期显示表单。但是,当我尝试#new
操作时,收到以下错误:
Showing /Users/shawn/Documents/uga/library_hours/app/views/buildings_regular_hours/_form.html.erb where line #1 raised:
undefined method `building_buildings_regular_hours_index_path` for #<#<Class:0x007fe9589e2890>:0x007fe95f9bbb30>
Did you mean? building_buildings_regular_hours_path
building_buildings_regular_hour_path
building_buildings_regular_hours_url
building_buildings_regular_hour_url
Extracted source (around line #1):
1 <%= form_for([building,buildings_regular_hour]) do |f| %>
2 <% if buildings_regular_hour.errors.any? %>
3 <div id="error_explanation">
4 <h2><%= pluralize(buildings_regular_hour.errors.count, "error") %> prohibited this buildings_regular_hour from being saved:</h2>
5
6 <ul>
Trace of template inclusion: app/views/buildings_regular_hours/new.html.erb
我注意到我已正确嵌套form_for
标记中的资源,@building
和@building_regular_hour
都由控制器设置,并且我正在调用表单同样适用于#edit
和#new
。这是我以前为使嵌套资源工作所必须做的所有事情,所以我有点不知所措。
请注意我还没有尝试让表单正常工作 - 我知道那里有工作要做。我只是想让#new
显示表单。
答案 0 :(得分:0)
您需要更正关联
class Building < ApplicationRecord
has_many :buildings_regular_hours
def to_s
name
end
end
class BuildingsRegularHour < ApplicationRecord
belongs_to :building
end
您的模型名称应始终为单数BuildingsRegularHour
,否则会产生路线和关联问题