How to add many files with silverstripe uploadfield - php

Question

Hello everyone,
I'm trying to add more than 1 file to my uploadfield with this code ->
class FileDo extends File {
static $has_one = array(
'DocumentsFile' => 'DocumentsFile',
);
}
class DocumentsFile extends DataObject {
static $has_one = array(
'DocumentPageAcces1' => 'DocumentPageAcces1'
);
static $has_many = array(
'Files' => 'FileDo'
);
public function getCMSFields() {
$fields = parent::getCMSFields();
$fields->removeByName('DocumentPageAcces1ID');
return $fields;
}
public function onBeforeWrite() {
parent::onBeforeWrite();
$page = DataObject::get_one('DocumentPageAcces1');
if($page) {
$this->DocumentPageAcces1ID = $page->ID;
}
}
}
class DocumentPageAcces1 extends Page {
static $has_many = array(
'DocumentsFiles' => 'DocumentsFile',
);
public function getCMSFields() {
$fields = parent::getCMSFields();
$fields->addFieldToTab('Root.Main', new TextareaField('DocumentsIntro_en', "Document Introduction"));
$fields->addFieldToTab('Root.Main', new TextareaField('PublicationsIntro_en', "Publication Introduction"));
$fields->addFieldToTab('Root.FR', new TextareaField('DocumentsIntro_fr', "Document Introduction"));
$fields->addFieldToTab('Root.FR', new TextareaField('PublicationsIntro_fr', "Publication Introduction"));
$fields->addFieldToTab('Root.NL', new TextareaField('DocumentsIntro_nl', "Document Introduction"));
$fields->addFieldToTab('Root.NL', new TextareaField('PublicationsIntro_nl', "Publication Introduction"));
$upload = new UploadField(
'DocumentsFile',
'Document',
$this->DocumentsFiles()
);
$fields->addFieldToTab('Root.DocumentsFile', $upload);
$fields->removeByName('Content');
$fields->removeByName('Metadata');
return $fields;
}
}
class DocumentPageAcces1_Controller extends Page_Controller {
}
So to make it clear: i'm trying to add some DocumentFile in my DocumentPageAcces1. When i execute this code, i have in my DocumentPageAcces1 the tab DocumentsFiles and in this tab i have the uploadfield.
THE PROBLEM is that the uploadfield doesn't want to keep my file so when i chose some file, i click OK in my finder and nothing happens......Could anyone help me?
Thanks Thomas.

Answer 1

UploadField isn't made to work with DataObjects but like you found with File or it's subclasses.
Although in your case, I don't think you need a subclass, so you could just remove your DocumentFileDo class that extend File and use this in your DocumentPageAcces1.php
static $has_many = array(
'DocumentFiles' => 'File',
);
In the case you want to have more control/details on the files you upload (i.e. add descriptions, titles etc...), in that case you can create a DataObject that has a $has_one relation to a File and then use that DataObject in the relation on your page with a GridField:
DocumentFile.php
class DocumentFile extend DataObject
{
static $db = array(
'Description' => 'HTMLText'
);
static $has_one = array(
'File' => 'File'
);
}
DocumentPageAcces1.php
static $has_many = array(
'DocumentFiles' => 'DocumentFile'
);
function getCMSFields()
{
$fields = parent::getCMSFields();
$c = new GridFieldConfig_RelationEditor();
$f = new GridField('Documents', 'DocumentFiles', $this->DocumentFiles(), $c);
$fields->addFieldToTab('Root.Documents', $f);
return $fields;
}

Answer 2

After some hours I found a solution, maybe it's not the best one but it works for me ->
I created a class that extends the File class for each document type i need so I have for example
class DocumentFileDo extends File {
static $has_one = array(
'DocumentPageAcces1' => 'DocumentPageAcces1'
);
}
In my DocumentPageAcces1.php I have a has_many relationship like this :
static $has_many = array(
'DocumentFileDos' => 'DocumentFileDo',
);
And I the getCMSFields function I have :
$fields->addFieldToTab('Root.Document', new UploadField('DocumentFileDos'));
It works well, you can add many file with just a has_many relationship and an UploadField. But it's not the best i think if you have a hundred different documents type..
PS: With UploadField you can drag and drop files but this function which works well on Chrome does not on Firefox!

Answer 3

I just struggled with the same thing. SilverStripe even has a (faulty*) developer guide on this matter (though it took me hours to find it) … Anyway, I found a solution. (assuming SilverStripe 4)
mysite/page/MyCustomPage.php
class MyCustomPage extends Page
{
private static $many_many = array(
'DocumentFiles' => File::class
);
public function getCMSFields(){
$fields = parent::getCMSFields();
$fields->addFieldToTab('Root.Main',
UploadField::create('DocumentFiles', 'My Documents')
);
return $fields;
}
}
mysite/extensions/DocumentFileExtension.php
class DocumentFileExtension extends DataExtension
{
private static $belongs_many_many = array(
'DocumentContainers' => MyCustomPage::class
);
// I actually don't know the purpose of the name "DocumentContainers"
// ("Galleries" in the guide); it is never referenced again.
}
mysite/_config/app.yml
SilverStripe\Assets\File:
extensions:
- DocumentFileExtension
themes/mytheme/templates/Layout/MyCustomPage.ss
<% loop $DocumentFiles %>
$Link
<% end_loop %>
You basically extend the native File class into a custom version of it, and "suddenly" the unchanged UploadField (that also does the same for single files) now allows multiple files; complete with a GUI and everything.
Hope this works for you.
* They keep using 'Foo' => 'Bar' all over their official documentation pages instead of 'Foo' => Bar::class, which you have to use in ss4 in order to avoid an Exception:
Uncaught InvalidArgumentException: many_many relation SilverStripe\Blog\Model\BlogPost.DownloadFiles references class File which doesn't exist