如何从另一个备份页表单调用该值，并在OctoberCms中的组件上使用它 - How do I call the value from another backed page form and use it on a component in OctoberCms

我正在制作一个seo插件，我也在使用rainlab博客插件，我创建了一个带有字段的选项卡，可以在其中输入要包含在页面的head标记中的元数据，但当我的seo组件位于cms页面时，我不知道如何从博客区域（rainlab插件菜单选项卡）中的表单字段中调用值，我曾尝试使用{this.page.variable}}}方法，但由于输入表单位于另一个后端页面，因此无法工作。

这就是我的plugin.php的样子：

<?php namespace Stronganswer'Seo;
use Backend;
use Event;
use System'Classes'PluginBase;
use Cms'Classes'Page;
use Cms'Classes'Theme;
use System'Classes'PluginManager;
use System'Classes'SettingsManager;
class Plugin extends PluginBase
{
    /**
     * Returns information about this plugin.
     *
     * @return array
     */
public function pluginDetails()
{
    return [
        'name'        => 'seo',
        'description' => 'meta and og tag handler',
        'author'      => 'stronganswer',
        'icon'        => 'icon-leaf'
    ];
}
/**
 * Registers any front-end components implemented in this plugin.
 *
 * @return array
 */
public function registerComponents()
{
    return [
        'Stronganswer'Seo'Components'Seo' => 'seoHandler',
        'Stronganswer'Seo'Components'BlogPost' => 'SeoBlogPost',
        'Stronganswer'Seo'Components'StaticPage' => 'SeoStaticPage',
        'Stronganswer'Seo'Components'CmsPage' => 'SeoCmsPage',
    ];
}
public function registerSettings(){
    return [
        'settings' => [
            'label'       => 'SEO Settings',
            'description' => 'Seo Settings.',
            'icon'        => 'icon-bar-chart-o',
            'class'       => 'stronganswer'seo'Models'settings',
            'context'     => 'mysettings',
            'category'    =>  SettingsManager::CATEGORY_MYSETTINGS,
            'order'       => 1
        ]
    ];
}
/**
 * Registers any back-end permissions used by this plugin.
 *
 * @return array
 */
public function registerPermissions()
{
    return [
        'stronganswer.seo.some_permission' => [
            'tab' => 'seo',
            'label' => 'Some permission'
        ],
    ];
}
/**
 * Registers back-end navigation items for this plugin.
 *
 * @return array
 */
  /*  public function registerNavigation()
{
    return [
        'seo' => [
            'label'       => 'seo',
            'url'         => Backend::url('stronganswer/seo/controllers'),
            'icon'        => 'icon-leaf',
            'permissions' => ['stronganswer.seo.*'],
            'order'       => 500,
        ],
    ];
}*/
public function boot()
{
  Event::listen('backend.form.extendFields', function($widget)
    {
      if(PluginManager::instance()->hasPlugin('RainLab.Pages') && $widget->model instanceof 'RainLab'Pages'Classes'Page)
      { //static pages fields
        $widget->addFields([
          'viewBag[seo_title]' =>[
            'label' => 'Meta Title',
            'tab'     => 'SEO',
            'type' => 'text'
          ],
          'viewBag[seo_description]' =>[
            'label' => 'Meta Description',
            'tab'     => 'SEO',
            'size'    => 'tiny',
            'type' => 'textarea'
          ],
          'viewBag[seo_keywords]' =>[
            'label' => 'Meta Keywords',
            'tab'     => 'SEO',
            'type' => 'text'
          ],
          'viewBag[robot_index]' => [
            'label'   => 'Robot Index',
            'type'    => 'dropdown',
            'tab'     => 'SEO',
            'options' => ["index"=>"index","noindex"=>"noindex"],
            'default' => 'index',
            'span'    => 'left'
          ],
          'viewBag[robot_follow]' => [
            'label'   => 'Robot Follow',
            'type'    => 'dropdown',
            'tab'     => 'SEO',
            'options' => ["follow"=>"follow","nofollow"=>"nofollow"],
            'default' => 'follow',
            'span'    => 'right'
                    ]
        ], 'primary');
      }
      if(PluginManager::instance()->hasPlugin('RainLab.Blog') && $widget->model instanceof 'RainLab'Blog'Models'Post)
      {
        $widget->addFields([
          'blog_title' =>[
            'label' => 'Meta Title',
            'tab' => 'Blog Seo',
            'type' => 'text'
          ],
          'seo_description' =>[
            'label' => 'Meta Description',
            'tab'     => 'Blog Seo',
            'size'    => 'tiny',
            'type' => 'textarea'
          ],
          'seo_keywords' =>[
            'label' => 'Meta Keywords',
            'tab'     => 'Blog Seo',
            'type' => 'text'
          ],
          'robot_index' => [
            'label'   => 'Robot Index',
            'type'    => 'dropdown',
            'tab'     => 'Blog Seo',
            'options' =>  ["index"=>"index","noindex"=>"noindex"],
            'default' => 'index',
            'span'    => 'left'
          ],
          'canonical_url' => [
                        'label'   => 'Canonical URL',
                        'type'    => 'text',
                        'tab'     => 'SEO',
                        'span'    => 'left'
                    ],
          'robot_follow' => [
            'label'   => 'Robot Follow',
            'type'    => 'dropdown',
            'tab'     => 'Blog Seo',
            'options' => ["follow"=>"follow","nofollow"=>"nofollow"],
            'default' => 'follow',
            'span'    => 'right'
                    ]
        ], 'secondary');
      }
      if (!$widget->model instanceof 'Cms'Classes'Page) return;
      //cms page fields
                $widget->addFields([
                  'settings[seo_title]' =>[
                    'label' => 'Meta Title',
                    'tab'     => 'SEO',
                    'type' => 'text'
                  ],
                  'settings[seo_description]' =>[
                    'label' => 'Meta Description',
                    'tab'     => 'SEO',
                    'size'    => 'tiny',
                    'type' => 'textarea'
                  ],
                  'settings[seo_keywords]' =>[
                    'label' => 'Meta Keywords',
                    'tab'     => 'SEO',
                    'type' => 'text'
                  ],
                  'settings[robot_index]' => [
                    'label'   => 'Robot Index',
                    'type'    => 'dropdown',
                    'tab'     => 'SEO',
                    'options' => ["index"=>"index","noindex"=>"noindex"],
                    'default' => 'index',
                    'span'    => 'left'
                  ],
                  'settings[robot_follow]' => [
                    'label'   => 'Robot Follow',
                    'type'    => 'dropdown',
                    'tab'     => 'SEO',
                    'options' => ["follow"=>"follow","nofollow"=>"nofollow"],
                    'default' => 'follow',
                    'span'    => 'right'
                            ]
      ],  'primary');
           });
    }
}

这是我的组件：

<?php namespace Stronganswer'Seo'Components;
use DB;
use Cms'Classes'ComponentBase;
use Stronganswer'Seo'models'Settings;
use RainLab'Pages'Classes'Router;
use RainLab'Blog'Models'Post;
use Cms'Classes'Theme;
use Cms'Classes'Page;
use Request;
use Event;
class BlogPost extends ComponentBase
{
  //singular page tags
public $page;
public $blog_title;
public $seo_title;
public $seo_description;
public $seo_keywords;
public $robot_index;
public $robot_follow;
//global tags
    public $ogTitle;
    public $ogDescription;
    public $ogSiteName;
    public $ogUrl;
    public $ogType;
    public $ogAuthor;
    public $ogImage;
//facebook tags
    public $ogFbAppId;
    public $ogFbAdmins;
//google tags
    public $ogGlTitle;
    public $ogGlDescription;
    public $ogGlImage;
//twitter tags
    public $ogTtCard;
    public $ogTtSite;
    public $ogTtTitle;
    public $ogTtDescription;
    public $ogTtAuthor;
    public $ogTtImage;
public function componentDetails()
{
    return [
        'name'        => 'Seo BlogPost component',
        'description' => 'handles seo fields into blogposts'
    ];
}
public function defineProperties()
{
    return [
        "post" => [
                "title" => "data",
                "default" => "post"
        ]
    ];
}
public function Run()
{
  $theme = Theme::getActiveTheme();
  $page = Page::load($theme,$this->page->baseFileName);
  $this->page["hasBlog"] = true;
  if($page->hasComponent("blogPost"))
  {
  //$seo = DB::table('rainlab_blog_posts')->get();
  //$blog_title = DB::table('rainlab_blog_posts')->where('slug','=','first-blog-post')->value('seo_title');
  //$this->seo_title = $this->page['blog_title'] = $this->page->getViewBag()->property('blog_title');
  //$this->seo_title = $this->page["seo_title"] = $this->page->seo_title;
  /*$blog_title = DB::table('rainlab_blog_posts')
                       ->select(DB::raw('select seo_title'))
                       ->where('slug', '=', 'first-blog-post')
                       ->get();*/
  $this->seo_description = $this->page["seo_description"] = $this->page->meta_description;
  $this->seo_keywords = $this->page["seo_keywords"] = $this->page->seo_keywords;
  $this->robot_follow = $this->page["robot_follow"] = $this->page->robot_follow;
  $this->robot_index = $this->page["robot_index"] = $this->page->robot_index;
  $settings = Settings::instance();
      if($settings->enable_og_tags)
      {
          $this->ogTitle = $settings->og_title;
          $this->ogDescription = $settings->og_description;
          $this->ogSiteName = $settings->og_sitename;
          $this->ogUrl = $settings->og_url;
          $this->ogType = $settings->og_type;
          $this->ogAuthor = $settings->og_author;
          $this->ogImage = $settings->og_img;
      }
      if($settings->enable_fb_tags)
      {
          $this->ogFbAppId = $settings->og_fb_appid;
          $this->ogFbAdmins = $settings->og_fb_admins;
      }
      if($settings->enable_ggl_tags)
      {
        $this->ogGlTitle = $settings->og_gl_title;
        $this->ogGlDescription = $settings->og_gl_description;
        $this->ogGlImage = $settings->og_gl_img;
      }
      if($settings->enable_tt_tags)
      {
         $this->ogTtCard = $settings->og_tt_card;
         $this->ogTtSite = $settings->og_tt_site;
         $this->ogTtTitle = $settings->og_tt_title;
         $this->ogTtDescription = $settings->og_tt_description;
         $this->ogTtAuthor = $settings->og_tt_author;
         $this->ogTtImage = $settings->og_tt_img;
      }
}
  else{
  $this->hasBlog = $this->page["hasBlog"] = false;
  }
}
}

注释中的代码在尝试从表单中获取值时失败。如果我转到数据库，我可以看到我在表单中输入的值，但我不能将它们调用到我的组件。

和我的deafult.htm:

<meta name="title" content="{{__SELF__.blog_title}}">
  <meta name="description" content="{{__SELF__.seo_description}}">
  <meta name="keywords" content="{{__SELF__.seo_keywords}}">
  <meta name="robots" content="{{__SELF__.robot_index}},{{__SELF__.robot_follow}}">
  <meta property="og:site_name" content="{{ __SELF__.ogSiteName }}" />
  <meta property="og:title" content="{{ __SELF__.ogTitle }}" />
  <meta property="og:url" content="{{ __SELF__.ogUrl }}" />
  <meta property="og:description" content="{{ __SELF__.ogDescription }}" />
  <meta property="og:type" content="{{ __SELF__.ogType }}" />
  <meta name="author" content="{{ __SELF__.ogAuthor }}" />
  <meta property="og:image" content="{{ __SELF__.ogImage }}" />
  <meta property="fb:app_id" content="{{ __SELF__.ogFbAppId  }}" />
  <meta property="fb:admins" content="{{ __SELF__.ogFbAdmins  }}" />
  <meta itemprop="name" content="{{ __SELF__.ogGlTitle  }}" />
  <meta itemprop="description" content="{{ __SELF__.ogGlDescription  }}" />
  <meta itemprop="image" content="{{ __SELF__.ogGlImage  }}" />
  <meta itemprop="image" content="{{ __SELF__.ogGlImage  }}" />
  <meta name="twitter:card" content="{{__SELF__.ogTtCard}}">
  <meta name="twitter:site" content="{{__SELF__.ogTtSite}}">
  <meta name="twitter:title" content="{{__SELF__.ogTtTitle}}">
  <meta name="twitter:description" content="{{__SELF__.ogTtDescription}}">
  <meta name="twitter:creator" content="{{__SELF__.ogTtAuthor}}">
  <meta name="twitter:image:src" content="{{__SELF__.ogTtImage}}">

我也有cms页面和rainlab页面插件（静态页面）的表单，我从我制作的另一个组件中获得它们，我想指出它们都运行良好。

为了从DB中调用值，我这样做了：

将其插入组件onRun功能：

$this->blog_seo_or_smth = DB::table('rainlab_blog_posts')->where('slug','first-blog-post')->first();

然后在default.htm上：

<meta name="title" content="{{__SELF__.blog_seo_or_smth.seo_title}}">

我也在努力了解如何同时扩展cmsPages和rainlabPages中的字段，然后使用partial在我的html源中打印文件。所以我创建了这个部分：

<meta charset="utf-8" >
<meta http-equiv="X-UA-Compatible" content="IE=edge" >
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="description" content="{{ this.page.meta_description }}">
<meta name="robots" content=",">
<meta property="og:title" content="October - {{ this.page.title }}" />
<meta property="og:url" content="{{ this.page.url }}" />
<meta property="og:site_name" content="{{ title }}" />
<meta property="og:description" content="{{ this.page.meta_description }}" />
<meta property="fb:app_id" content="xxx" />
<meta property="og:type" content="xxx">
<meta property="og:image" content="{{ this.theme.site_logo_url }}">
<meta name="twitter:card" content="{{ summary }}">
<meta name="twitter:title" content="October- {{ this.page.title }}">
<meta name="twitter:description" content="{{ this.page.meta_description }}">
<meta name="twitter:image" content="{{ this.theme.site_logo_url }}">

我认为最好的解决方案是：创建一个插件，扩展cmsPages和rainLab Pages的字段，而不是用分部打印！研究anandpatel的seosextension代码可能会有所帮助，但我在编码方面不是很强，所以我们可以互相帮助。

我认为功能是：

   public function register()
{
    'Event::listen('backend.form.extendFields', function($widget)
    {
        if(PluginManager::instance()->hasPlugin('RainLab.Pages') && $widget->model instanceof 'RainLab'Pages'Classes'Page)
        {
            if (!$widget->model instanceof 'Cms'Classes'Page) return;
        if (!($theme = Theme::getEditTheme())) {
            throw new ApplicationException(Lang::get('cms::lang.theme.edit.not_found'));

也许我们可以把这个项目插入git。

再见Gabriele

如果需要表单中的值，请使用Input类

https://octobercms.com/docs/services/request-input

您可以使用一些简单的方法访问所有用户输入。在使用Input facade时，您不需要担心请求的HTTP谓词，因为所有谓词都以相同的方式访问输入。全局input（）辅助函数是input:：get的别名。

检索输入值

$name = Input::get('name');

如果输入值不存在，则检索默认值

$name = Input::get('name', 'Sally');

确定输入值是否存在

if (Input::has('name')) {
    //
}

但我认为你的意思是别的，但我不确定，因为实际问题还不清楚。

在扩展插件时，有很多事情需要考虑，在这些情况下你应该检查：

我的字段是在数据库中创建的吗
我的值是否保存在数据库中
我应该在这些项目上使用关系而不是修改这些项目吗
我可以dd($somevalue)我的组件中的值吗（dd终止任何执行并转储变量。对分析它们非常有用）
我是否有一个单独的管理模型和控制器来管理我的值以进行调试。这些是什么节目
我可以通过查询直接访问这些值吗
我的组件设置配置/注册正确吗
在设置/事件日志中跟踪哪些错误

十月调试一开始可能很痛苦，但一旦掌握了窍门，就很有趣：-）