问题描述
OK,我固定在this问题,现在我有这个新的,我似乎并没有围绕我的头。
这是我的看法和Javascript code:
< SCRIPT LANGUAGE =JavaScript的类型=文/ JavaScript的>
传播的getconfig(){
$阿贾克斯({
网址:<%= get_config_projects_url%>中,
数据: {
编号:LT;%= @ project.id%>中
unit_mgt_address:$('。unit_mgt_address_class)VAL()。
}
});
}
< / SCRIPT>
<%=的form_for(@project)办| F | %>
<输入类型=按钮的onClick =的getconfig()/>
< DIV CLASS =字段>
<%= f.label:单位管理地址%>< BR>
<%= f.text_field:UnitMgtAddress,:类=>'unit_mgt_address_class%>
< / DIV>
< DIV CLASS =行动>
&其中;%= f.submit%GT;
< / DIV>
<%结束%GT;
我控制器
类ProjectsController<的ApplicationController
before_action:set_project,只有:[:显示,编辑,:更新:灭]
<许多其他的方法去这里>
#GET /项目/ 1
#GET /projects/1.json
高清get_config
@project = Project.find(PARAMS [:ID])
respond_to代码做|格式|
如果@ project.update(project_params)
format.js
的format.html {渲染操作:编辑,通知:!项目Get_Config成功 }
其他
的format.html {渲染的动作:更新}
format.json {渲染JSON:@ project.errors,状态:unprocessable_entity}
结束
结束
结束
私人
#使用回调分享共同的设置或动作之间的约束。
高清set_project
@project = Project.find(PARAMS [:ID])
结束
#从不信任的参数从可怕的网络,只允许白名单通过。
高清project_params
params.require(:项目).permit(:UnitMgtAddress)
结束
结束
当我点击刷新按钮,出现此错误消息:
入门GET/projects/get_config?id=9&unit_mgt_address=5.5.5.5为127.0.0.1,在2014年4月29日22时48分37秒-0700
处理由ProjectsController#get_config作为* / *
参数:{身份证=>中9,unit_mgt_address=>中5.5.5.5}
项目负荷(1.0ms的)选择项目。*从项目WHERE项目,ID=? LIMIT 1 [身份证,9]
已完成400错误的请求在6ms的
ActionController的:: ParameterMissing(参数丢失或为空值:项目):
应用程序/控制器/ projects_controller.rb:128:在'project_params
应用程序/控制器/ projects_controller.rb:91:在`块get_config
应用程序/控制器/ projects_controller.rb:89:在'get_config
渲染C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/actionpack-4.1.0/lib/action_dispatch/middleware/templates/rescues/_source.erb (2.0ms)
渲染C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/actionpack-4.1.0/lib/action_dispatch/middleware/templates/rescues/_trace.text.erb (1.0ms的)
渲染C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/actionpack-4.1.0/lib/action_dispatch/middleware/templates/rescues/_request_and_response.text.erb (1.0ms的)
渲染C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/actionpack-4.1.0/lib/action_dispatch/middleware/templates/rescues/diagnostics.erb (63.0ms)
我试了很多方法来传递:项目参数,通过Javascript控制器,但我没有运气
。任何帮助是AP preciated?
感谢和放大器;顺祝商祺
更新1 按照要求,这些是我添加了get_config和set_config方法
路线 资源:项目办
集合做
得到:get_config
得到:set_config
结束
结束
工作方案1
这是为我工作的code修改:我搬到了按钮的形式外,用它取代了以下
<%= button_to'获取配置,get_config_projects_url(ID:@ project.id,项目:{unit_mgt_address:@ project.UnitMgtAddress}),遥控器:真,方法:拿到%GT;
工作方案2(解决方法)
函数的getconfig(){
$阿贾克斯({
网址:<%= get_config_projects_url(项目:{ID:@ project.id,unit_mgt_address:@ project.UnitMgtAddress})%>中,
数据: {
编号:LT;%= @ attero.id%>中
unit_mgt_address:$('。unit_mgt_address_class)VAL()。
}
});
}
您应该真正让Rails的处理你的AJAX请求你。我拉了正在被提交表单以外的按钮,并把它变成自己的的link_to
或 button_to
,只是添加方法:获得
如果你想使用一个按钮。设置远程:真正的
,它会处理所有的AJAX为你工作
<%=的link_to'获取配置,get_config_projects_url(@ project.id,项目:{unit_mgt_address:@ project.UnitMgtAddress}),遥控器:真%>
或
<%= button_to'获取配置,get_config_projects_url(@ project.id,项目:{unit_mgt_address:@ project.UnitMgtAddress}),遥控器:真,方法:取% >
语法可能需要略微调整,对于特定的路径,而是让Rails的管理这样的事情是不是你想要做什么,更清洁了很多。阅读上的语法 button_to
的。
OK, after I fixed this issue, now I have this new one, which I don't seem to get my head around.
This is my view and Javascript code:
<script language="javascript" type="text/javascript">
function getConfig(){
$.ajax({
url: "<%= get_config_projects_url %>",
data: {
id: <%= @project.id %>,
unit_mgt_address: $('.unit_mgt_address_class').val(),
}
});
}
</script>
<%= form_for(@project) do |f| %>
<input type=button onClick="getConfig()"/>
<div class="field">
<%= f.label :Unit Management Address %><br>
<%= f.text_field :UnitMgtAddress, :class=>'unit_mgt_address_class' %>
</div>
<div class="actions">
<%= f.submit %>
</div>
<% end %>
My Controller
class ProjectsController < ApplicationController
before_action :set_project, only: [:show, :edit, :update, :destroy]
<many other methods go here>
# GET /projects/1
# GET /projects/1.json
def get_config
@project = Project.find(params[:id])
respond_to do |format|
if @project.update(project_params)
format.js
format.html { render action: "edit", notice: 'Project Get_Config Successful!' }
else
format.html { render action: "update" }
format.json { render json: @project.errors, status: :unprocessable_entity }
end
end
end
private
# Use callbacks to share common setup or constraints between actions.
def set_project
@project = Project.find(params[:id])
end
# Never trust parameters from the scary internet, only allow the white list through.
def project_params
params.require(:project).permit(:UnitMgtAddress)
end
end
When I click on "Refresh" button, I get this error message:
Started GET "/projects/get_config?id=9&unit_mgt_address=5.5.5.5" for 127.0.0.1 at 2014-04-29 22:48:37 -0700
Processing by ProjectsController#get_config as */*
Parameters: {"id"=>"9", "unit_mgt_address"=>"5.5.5.5"}
Project Load (1.0ms) SELECT "projects".* FROM "projects" WHERE "projects"."id"= ? LIMIT 1 [["id", 9]]
Completed 400 Bad Request in 6ms
ActionController::ParameterMissing (param is missing or the value is empty: project):
app/controllers/projects_controller.rb:128:in `project_params'
app/controllers/projects_controller.rb:91:in `block in get_config'
app/controllers/projects_controller.rb:89:in `get_config'
Rendered C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/actionpack-4.1.0/lib/action_dispatch/middleware/templates/rescues/_source.erb (2.0ms)
Rendered C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/actionpack-4.1.0/lib/action_dispatch/middleware/templates/rescues/_trace.text.erb (1.0ms)
Rendered C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/actionpack-4.1.0/lib/action_dispatch/middleware/templates/rescues/_request_and_response.text.erb (1.0ms)
Rendered C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/actionpack-4.1.0/lib/action_dispatch/middleware/templates/rescues/diagnostics.erb (63.0ms)
I tried many ways to pass ":project" parameter to the controller via Javascript, but I had no luck.
Any help is appreciated?
Thanks & Best Regards
Update 1As requested, these are the routes I added for get_config and set_config methods
resources :projects do
collection do
get :get_config
get :set_config
end
end
Working Solution 1
This is the code change that worked for me : I moved the button outside the form and replaced it with the following
<%= button_to 'Get Config', get_config_projects_url(id: @project.id, project: { unit_mgt_address: @project.UnitMgtAddress }), remote: true, method: :get %>
Working Solution 2 (workaround)
function getConfig(){
$.ajax({
url: "<%= get_config_projects_url(project: { id: @project.id, unit_mgt_address: @project.UnitMgtAddress }) %>",
data: {
id: <%= @attero.id %>,
unit_mgt_address: $('.unit_mgt_address_class').val(),
}
});
}
You should really let Rails handle your AJAX requests for you. I'd pull that button outside of the form that's being submitted and put it into its own link_to
or button_to
, just add method: :get
if you want to use a button. Set remote: true
and it will handle all the AJAX work for you.
<%= link_to 'Get Config', get_config_projects_url(@project.id, project: { unit_mgt_address: @project.UnitMgtAddress }), remote: true %>
or
<%= button_to 'Get Config', get_config_projects_url(@project.id, project: { unit_mgt_address: @project.UnitMgtAddress }), remote: true, method: :get %>
Syntax might need to be tweaked slightly, for your path in particular, but letting Rails manage this sort of thing is a lot cleaner than what you're trying to do. Read up on the syntax for button_to
here.
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