Question

我正在使用Silvertripe 3.0，目前有一个简单的页面设置，有几个子页面。子页面包含包含图像的数据对象，我试图让子页面的图像和URL显示在父页面上。我的模板中有以下代码：

<% loop $Children %>
    <a href="$Link">$Title</a>
<% end_loop %>

<div id="whiskyMainGallery">

    <% control WhiskyGallery %>
        <div class="item">

            <a href="$WhiskyPageID">$Slide.SetRatioSize(220,178)</a>

        </div>

    <% end_control %>

</div>

这两个控件都按预期工作，但我尝试将它们组合在一起，这样我就可以从WhiskyGallery控件获取数据对象图像以及URL，这样我就可以在模板中调用类似下面的内容：

<% control JoinedStuff %>
    <a href="$ChildPageUrl">$DataObjectImage</a>
<% end_control%>

非常感谢任何帮助！

这是我的whiskyPage类：

class WhiskyPage extends Page {

    public static $db = array(
        'ABV'       => 'Text',
        'Colour'    => 'Text',
        'Aroma'     => 'HTMLText',
        'Taste'     => 'HTMLText',
        'Finish'    => 'HTMLText'
    );

    public static $has_many = array(
        'TastingAwards' => 'TastingAward',
        'WhiskyImages'  => 'WhiskyImage'
    );

   public function getCMSFields() {

        $fields = parent::getCMSFields();

        $gridFieldConfig = GridFieldConfig_RecordEditor::create(); 
        $gridFieldConfig->addComponent(new GridFieldBulkEditingTools());
        $gridFieldConfig->addComponent(new GridFieldSortableRows('SortOrder'));   

        $gridfield = new GridField("TastingAwards", "Tasting Awards", $this->TastingAwards()->sort("SortOrder"), $gridFieldConfig);

        $gridFieldConfig2 = GridFieldConfig_RecordEditor::create(); 
        $gridFieldConfig2->addComponent(new GridFieldBulkEditingTools());
        $gridFieldConfig2->addComponent(new GridFieldBulkImageUpload());   
        $gridFieldConfig2->addComponent(new GridFieldSortableRows('SortOrder'));  

        $gridfield2 = new GridField("WhiskyImages", "Whisky Images", $this->WhiskyImages()->sort("SortOrder"), $gridFieldConfig2);

        $fields->addFieldToTab('Root.Tasting Notes', new TextField('ABV', 'ABV'));
        $fields->addFieldToTab('Root.Tasting Notes', new TextField('Colour', 'Colour'));
        $fields->addFieldToTab('Root.Tasting Notes', new HTMLEditorField('Aroma', 'Aroma'));
        $fields->addFieldToTab('Root.Tasting Notes', new HTMLEditorField('Taste', 'Taste'));
        $fields->addFieldToTab('Root.Tasting Notes', new HTMLEditorField('Finish', 'Finish'));

        $fields->addFieldToTab('Root.Tasting Awards', $gridfield);
        $fields->addFieldToTab('Root.WhiskyImages', $gridfield2);

        return $fields;

    }

}

My WhiskyImage DataObject

class WhiskyImage extends DataObject {

    public static $db = array(  
      'SortOrder'   => 'Int',
      'Title'       => 'Varchar',
      'Featured'    => 'Boolean'
    );

    // One-to-one relationship with whisky page
    public static $has_one = array(
    'Slide'         => 'Image',
    'WhiskyPage'    => 'WhiskyPage'
    );

    // tidy up the CMS by not showing these fields
    public function getCMSFields() {
        $fields = parent::getCMSFields();
        $fields->removeFieldFromTab("Root.Main","WhiskyPageID");
        $fields->removeFieldFromTab("Root.Main","SortOrder");

        $fields->addFieldToTab('Root.Main', new CheckboxField('Featured', 'Featured'));

        return $fields;
    }

    // Tell the datagrid what fields to show in the table
    public static $summary_fields = array( 
       'ID'         => 'ID',
       'Title'      => 'Title',
       'Thumbnail'  => 'Thumbnail'
    );

    // this function creates the thumbnail for the summary fields to use
    public function getThumbnail() { 
        if ($Image = $this->Slide()->ID) { 
            return $this->Slide()->SetWidth(80); 
        } else {
            return '(Please upload an image)'; 
        }
    }

}

WhiskyLandingPage有它自己的类，但没有什么有趣的，除了返回图像的自定义函数

public function GetWhiskyGallery() {
    return WhiskyImage::get()->filter(array('Featured' => 1))->sort("SortOrder");
}

希望更有意义！

Answer 1

首先，您应该在模板中使用loop而不是control

第二，加入数据对象和页面似乎是一个相当糟糕的主意，你可能会遇到问题。为什么不循环页面然后循环数据对象？

像这样：

<% loop $Children %>
    <a href="$Link">$Title</a>
    <ul>
       <% loop $WhiskyImages %>
           <a href="$Top.Link" title="link to the whisky page">Image: $Title</a>
           <a href="$WhiskyPage.Link">this link will also link to the wisky page</a>
           $Slide.SetRatioSize(220,178)
       <% end_loop %>
    </ul>
<% end_loop %>

//编辑：

在您只是循环所有WhiskyImage个对象列表的示例中，您可以这样做：

<div id="whiskyMainGallery">
    <% loop WhiskyGallery %>
        <div class="item">
            <a href="$WhiskyPage.Link">$Slide.SetRatioSize(220,178)</a>
        </div>
    <% end_loop %>
</div>

Silverstripe 3.0在一个函数中返回dataobjects和page url

1 个答案: