Put/Get UploadField 从自定义表单提交图片 -> Silverstripe 3.1

Question

我在使用 UploadField 编程时遇到了一个小问题。我已经创建了页面以在前端制作一个轻型 CMS。但我不知道如何将此图像检索到页面«更新»。

“创建”页面中有代码：

$uploadField = new UploadField( 'ImageEvenement', 'Image' );

有我试图让页面 «Update» 工作的代码

$evenID = Session::get('evenementID');
$evenement = Versioned::get_by_stage('PageCalendrierEvenement', 'Stage')->byID($evenID);
..
$SavedImage = File::get()->byID($evenement->ImageEvenementID)
$uploadField = new UploadField( 'ImageEvenement', 'Image', $SavedImage );

如何将提交的图像检索到 $SavedImage？我从文件中获取 ID 的想法行不通。

另一种方法：

$SavedImage = $evenement->ImageEvenement();

如果我从我正在查看的 $SavedImage 转储数据：

Image Object
(
    [destroyed] => 
    [model:protected] => DataModel Object
        (
            [customDataLists:protected] => Array
                (
                )

        )

    [record:protected] => Array
        (
            [ClassName] => Image
            [Created] => 2015-07-15 14:41:24
            [LastEdited] => 2015-07-16 15:03:25
            [Name] => images.jpg
            [Title] => images
            [Filename] => assets/Membres/9/calendrier/images.jpg
            [ShowInSearch] => 1
            [ParentID] => 15
            [OwnerID] => 9
            [ID] => 22
            [RecordClassName] => Image
        )

    [changed:DataObject:private] => Array
        (
        )

    [original:protected] => Array
        (
            [ClassName] => Image
            [Created] => 2015-07-15 14:41:24
            [LastEdited] => 2015-07-16 15:03:25
            [Name] => images.jpg
            [Title] => images
            [Filename] => assets/Membres/9/calendrier/images.jpg
            [ShowInSearch] => 1
            [ParentID] => 15
            [OwnerID] => 9
            [ID] => 22
            [RecordClassName] => Image
        )

    [brokenOnDelete:protected] => 
    [brokenOnWrite:protected] => 
    [components:protected] => 
    [unsavedRelations:protected] => 
    [sourceQueryParams:protected] => 
    [failover:protected] => 
    [customisedObject:protected] => 
    [objCache:ViewableData:private] => Array
        (
        )

    [class] => Image
    [extension_instances:protected] => Array
        (
            [BetterButtonDataObject] => BetterButtonDataObject Object
                (
                    [owner:protected] => 
                    [ownerBaseClass:protected] => DataObject
                    [ownerRefs:Extension:private] => 0
                    [class] => BetterButtonDataObject
                )

            [SiteTreeFileExtension] => SiteTreeFileExtension Object
                (
                    [owner:protected] => 
                    [ownerBaseClass:protected] => File
                    [ownerRefs:Extension:private] => 0
                    [class] => SiteTreeFileExtension
                )

            [Hierarchy] => Hierarchy Object
                (
                    [markedNodes:protected] => 
                    [markingFilter:protected] => 
                    [_cache_numChildren:protected] => 
                    [owner:protected] => 
                    [ownerBaseClass:protected] => File
                    [ownerRefs:Extension:private] => 0
                    [class] => Hierarchy
                )

        )

    [beforeExtendCallbacks:protected] => Array
        (
        )

    [afterExtendCallbacks:protected] => Array
        (
        )

)

有什么想法吗？

class PageCalendrierEvenement extends Page {

    private static $db = array(
        "Titre" => "Varchar(50)",
        "DateDepart" => "Date",
        "DateFin" => "Date",
    );

    private static $has_one = array(
        'Creator' => 'Member',
        'ImageEvenement' => 'Image',
    );

..
}

谢谢！

Answer 1

有一个关系需要关系名称中的 "ID" 后缀（因为它已保存到 db...），例如

$uploadField = new UploadField( 'ImageEvenementID', 'Image', $SavedImage );

那么它应该会自动保存。

或者，我为单一关系做了什么：

$imageField = UploadField::create('ImageEvenement', 'Image');
$imageField->setAllowedFileCategories('image');
$imageField->setAllowedMaxFileNumber(1);

希望对您有所帮助。

Answer 2

苦思冥想，终于找到窍门了！与 UploadField 一起使用的命令是 setValue($value)，其中包含 fileIDs。我的最终代码是：

$evenement = Versioned::get_by_stage('PageCalendrierEvenement', 'Stage')->byID($evenID);

...

$uploadField = new UploadField( 'ImageEvenement', 'Image' );

$data['ImageID'] = $evenement->ImageEvenement()->ID; 

$fileIDs[]=$data['ImageID'];
$uploadField->setValue(array('Files' => $fileIDs));

就是这样！

Answer 3

我的代码工作正常但不干净并且没有使用 SilverStripe 函数 类。无法将图像保存到数据对象的原因是因为我没有使用 :

$form->saveInto($evenement)

谢谢你Wmk for give me the get method to fill form with values on another :

$form->loadDataForm($evenement)

终于，一切正常了！