Silverstripe 3.4.0 - 设置 DataObject 和页面之间的关系 - 数据不保存到数据库

Question

我有一个带有项目库的网站，该网站上有专用于项目类型的子页面。我想让内容管理员能够 select 任何项目库项目显示在他们选择的任何子页面上。一个子页面可以有多个项目库项目，一个项目库项目可以显示在一个或多个子页面上。

我在 Page.php 上设置了一个 CheckboxSetField，它显示 ProjectGalleryItem DataObject 中所有项目名称的列表。我的复选框列表显示在所有子页面的单独选项卡中，但我无法获得任何 selected 值来保存——选中的复选框在保存时会自动取消选中。日志文件或控制台中未显示任何错误。

我想知道 Page 和 ProjectGalleryItem 之间的关系是否不正确？

这是 ProjectGalleryItem 的代码：

<?php

class ProjectGalleryItem extends DataObject
{
    private static $db = array(
        'ProjectName'      => 'Varchar(250)',
        'ProjectDescription' => 'Text',
    );

    private static $has_one = array(
        'ProjectImage' => 'Image',
    );

    private static $belongs_many_many = array(
        'Pages' => 'Page',
    );

    private static $summary_fields = array(
        'ProjectName',
        'ProjectDescription',
    );
}

class ProjectGalleryItemAdmin extends ModelAdmin {
    private static $managed_models = 'ProjectGalleryItem';
    private static $url_segment = 'ProjectGalleryItems';
    private static $menu_title = 'Project Gallery Items';
}

这是 Page.php 文件的一半：

<?php

class Page extends SiteTree
{
    private static $db = array(
        'BannerH1' => 'HTMLText',
        'BannerSubH1' => 'HTMLText',
        'H1' => 'varchar(250)',
        'PageTitle' => 'varchar(250)',
        'BottomContent' => 'HTMLText',
        'StylizedList' => 'HTMLText',
    );

    private static $has_one = array(
        'BannerImg' => 'Image',
    );

    private static $has_many = array(
        'RotatorImages' => 'RotatorImage',
    );

    private static $many_many = array(
        'ProjectGalleryItems' => 'ProjectGalleryItem'
    );

    public function getCMSFields()
    {
        $fields = parent::getCMSFields();

        $fields->addFieldToTab("Root.Main", new TextField("H1"), "Content");
        $fields->addFieldToTab("Root.Main", new HTMLEditorField("BannerH1"), "Content");
        $fields->addFieldToTab("Root.Main", new HTMLEditorField("BannerSubH1"), "Content");
        $fields->addFieldToTab("Root.Main", new HTMLEditorField('BottomContent', "Bottom Content"));
        $fields->addFieldToTab("Root.Main", new HTMLEditorField('StylizedList', "Stylized List"), "BottomContent");
        $fields->addFieldToTab('Root.Main', new TextField('PageTitle', 'Page Title'), 'MetaDescription');
        $fields->addFieldToTab("Root.Main", new UploadField('BannerImg', "Subpage Banner"), "Content");


        $metadataTab = $fields->findOrMakeTab('Root.Main.Metadata');
        $fields->removeByName('Metadata');
        $fields->addFieldToTab('Root.Main', $metadataTab);

        $gridFieldConfig = GridFieldConfig_RecordEditor::create();

        $gridFieldConfig->addComponent(new GridFieldBulkUpload());
        $gridFieldConfig->addComponent(new GridFieldSortableRows('SortOrder'));

        $gridFieldConfig->getComponentByType('GridFieldDataColumns')->setDisplayFields(array(
            // field from drawer class => label in UI
            'ID' => 'ID',
            'Title' => 'Title',
            'Thumbnail' => 'Thumbnail',
            'InternalURL.Link' => 'Internal URL',
        ));

        $gridfield = new GridField(
            "RotatorImages",
            "Rotator Images",
            $this->RotatorImages()->sort("SortOrder"),
            $gridFieldConfig
        );

        $fields->addFieldToTab('Root.Rotator Images', $gridfield);

        $projects = DataObject::get('ProjectGalleryItem');

        if(!empty($projects))
        {
            $map = $projects->Map('ID', 'ProjectName');

            $fields->addFieldToTab('Root.Projects',
            CheckboxSetField::create(
                $name = "Projects",
                $title = "Select Projects",
                $source = $map
            ));
        }

        return $fields;
    }
}

Answer 1

在我看来，问题出在您的表单字段名称上，它应该与关系名称相匹配。 CheckboxsetField::create() 的第一个参数应该是 ProjectGalleryItems，而不是 Projects。

Silverstripe 3.4.0 - 设置 DataObject 和页面之间的关系 - 数据不保存到数据库

Silverstripe 3.4.0 - Set Relationship between DataObject and Page - Data not saving to database

php

silverstripe

data-objects