Ruby on rails 在Rails中创建嵌套资源时没有路由匹配
我试图在我的项目中为特定学校创建一名新教师,但出现以下错误: 没有路线匹配[张贴]“/schools/3/teachers/new” 这是我的老师_controller.rb:Ruby on rails 在Rails中创建嵌套资源时没有路由匹配,ruby-on-rails,ruby,ruby-on-rails-4,ruby-on-rails-3.2,nested-attributes,Ruby On Rails,Ruby,Ruby On Rails 4,Ruby On Rails 3.2,Nested Attributes,我试图在我的项目中为特定学校创建一名新教师,但出现以下错误: 没有路线匹配[张贴]“/schools/3/teachers/new” 这是我的老师_controller.rb: class TeachersController < ApplicationController def new @teacher = Teacher.new end def create @teacher = Teacher.new(teacher_params) @teac
class TeachersController < ApplicationController
def new
@teacher = Teacher.new
end
def create
@teacher = Teacher.new(teacher_params)
@teacher.save
redirect_to school_path(school)
end
private
def teacher_params
params.require(:teacher).permit(:firstName, :lastName, :middleName)
end
end
class SchoolsController < ApplicationController
def show
@school = School.find(params[:id])
end
def new
@school = School.new
end
def edit
@school = School.find(params[:id])
end
def update
@school = School.find(params[:id])
if @school.update(school_params)
redirect_to @school
else
render 'edit'
end
end
def index
@schools = School.all
end
def create
@school = School.new(school_params)
if @school.save
redirect_to schools_path
else
render 'new'
end
end
def destroy
@school = School.find(params[:id])
@school.destroy
redirect_to schools_path
end
private
def school_params
params.require(:school).permit(:name)
end
end
和教师/new.html.erb:
<%= form_for :teacher, url: school_teachers_path(school) do |f| %>
<p>
<%= f.label :firstName %><br>
<%= f.text_field :firstName %>
</p>
<p>
<%= f.label :lastName %><br>
<%= f.text_field :lastName %>
</p>
<p>
<%= f.label :middleName %><br>
<%= f.text_field :middleName %>
</p>
<p>
<%= f.submit %>
</p>
<% end %>
在您的表单中尝试以下操作:
<%= form_for [school, Teacher.new] do |f| %>
由于您的
教师
资源嵌套在学校
资源下,因此您需要在尝试创建教师时通过学校
尝试将teachers\u controller.rb中的new
和create
操作更改为如下内容:
def new
@school = School.find(params[:school_id])
@teacher = @school.teachers.build
end
def create
@school = School.find(params[:school_id])
@teacher = @school.teachers.build(params[:teacher])
@teacher.save
redirect_to school_path(@school)
end
然后,将您的表单更改为:
<%= form_for([@school, @teacher]) do %>
. . .
. . .
<% end %>
. . .
. . .
我相信这是一个有很多属于协会的组织。因此,您需要首先更改教师控制器“创建动作”和“新建动作”
class TeachersController < ApplicationController
def new
get_school
@teacher = @school.teachers.build
end
def create
get_school
@teacher = @school.teachers.build(teacher_params)
If @teacher.save
redirect_to school_path(school)
else
render 'new'
end
private
def teacher_params
params.require(:teacher).permit(:firstName, :lastName, :middleName)
end
def get_school
@school = School.find (params [:school_id])
end
end
类教师控制器
然后在您的表单中,您将执行以下操作:
<%= form_for([@school,@teacher]) do |f| %>
希望这将有助于当您呈现创建教师的新
页面时,是否会出现此错误?目前,我可以查看表单并填写教师信息:名字、姓氏和中间名。然后,出现了错误。您能从school\u teachers\u path(school)
中的school
变量来自哪里吗?@Islam,谢谢您的帮助。但是,现在我得到了这个错误:没有路由匹配{:action=>“index”,:controller=>“teachers”,:school\u id=>nil}缺少必需的键:[:school\u id]将school\u id
添加到控制器中:params.require(:teacher).permit(:firstName,:lastName,:middleName,:school\u id)
。但是,我仍然想知道为什么它试图路由到索引操作!路线需要一个学校id
作为密钥。我看不出你的答案在哪里通过。我试着像你说的那样添加学校id,但仍然得到相同的错误。我不知道它为什么试图路由索引操作,因为我认为它应该是我表单的创建操作。很抱歉,我正在学习Rails。好的,我将列:school_id(type:integer)添加到我的教师表中,现在可以使用了。但是,我需要为创建操作编辑行redirect_to school_path(params[:school_id])。否则,它将显示错误:未定义的局部变量或#的“school”方法。谢谢您的帮助,Ayoub先生。我正在学习Rails,我肯定会在这个网站上问更多关于Rails的问题。希望像您这样有经验的Rails程序员将来能帮助我。祝你有美好的一天。
class TeachersController < ApplicationController
def new
get_school
@teacher = @school.teachers.build
end
def create
get_school
@teacher = @school.teachers.build(teacher_params)
If @teacher.save
redirect_to school_path(school)
else
render 'new'
end
private
def teacher_params
params.require(:teacher).permit(:firstName, :lastName, :middleName)
end
def get_school
@school = School.find (params [:school_id])
end
end
<%= form_for([@school,@teacher]) do |f| %>