silverstripe-frameworktest/code/GridFieldArbitraryData/ArbitraryDataModel.php

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<?php
namespace SilverStripe\FrameworkTest\GridFieldArbitraryData;
use LogicException;
use SilverStripe\Forms\DatetimeField;
use SilverStripe\Forms\FieldList;
use SilverStripe\Forms\HiddenField;
use SilverStripe\Forms\TextField;
use SilverStripe\ORM\DataObjectInterface;
use SilverStripe\ORM\DB;
use SilverStripe\ORM\FieldType\DBDatetime;
use SilverStripe\ORM\Queries\SQLDelete;
use SilverStripe\ORM\Search\BasicSearchContext;
use SilverStripe\View\ArrayData;
/**
* A class of arbitrary data for testing GridField components.
*
* It stores its data in the database, but it doesn't use DataObject abstractions
* to do so. The database in this scenario could just as easily be an API or other
* way to fetch and send data.
*/
class ArbitraryDataModel extends ArrayData implements DataObjectInterface
{
/**
* In order to validate that writing/deleting works for arbitrary data, we'll be storing these
* records in the database - just not using the DataObject abstraction.
*
* For our purposes, the database is acting as an abitrary data storage layer. It could just as
* easily be sending/recieving data through an API, for example.
*
* Note that the database will not be used for filtering/sorting/etc - it is only used to store
* the data on save, delete the data on delete, and fetch the data when loading the admin.
*/
public const TABLE_NAME = 'frameworktest_ArbitraryDataModel';
/**
* We need to ensure there is an ID field for new records
*/
public function __construct($value = [])
{
if (!isset($value['ID'])) {
$value['ID'] = 0;
}
parent::__construct($value);
}
/**
* Stores the current data into the database - but could just as easily send it through an API
* endpoint for storing somewhere else, or save to a file, etc.
*/
public function write()
{
$isNew = !$this->ID;
$now = DBDatetime::now()->Rfc2822();
$record = $this->array;
$record['LastEdited'] = $now;
if ($isNew) {
$record['Created'] = $now;
}
// Remove anything that isn't storable in the DB, such as Security ID
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$dbColumns = DB::field_list(ArbitraryDataModel::TABLE_NAME);
foreach ($record as $fieldName => $value) {
if (!array_key_exists($fieldName, $dbColumns)) {
unset($record[$fieldName]);
}
}
// This is basically a fancy SQLInsert or SQLUpdate - I just copied DataObject so I didn't have to think.
$manipulation = [
'command' => $isNew ? 'insert' : 'update',
'fields' => $record,
];
if (!$isNew) {
$manipulation['id'] = $this->ID;
}
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DB::manipulate([ArbitraryDataModel::TABLE_NAME => $manipulation]);
if ($isNew) {
// Must save the ID in this object so GridField knows what URL to redirect to.
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$this->ID = DB::get_generated_id(ArbitraryDataModel::TABLE_NAME);
}
}
public function delete()
{
if (!$this->ID) {
throw new LogicException('DataObject::delete() called on a record without an ID');
}
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SQLDelete::create()->setFrom(ArbitraryDataModel::TABLE_NAME)->setWhere(['ID' => $this->ID])->execute();
$this->ID = 0;
}
/**
* Sets the value from the form
*/
public function setCastedField($fieldName, $val)
{
$this->$fieldName = $val;
}
/**
* Gives a localisable plural name for the class.
*
* Used in add button, breadcrumbs, and toasts
*/
public function i18n_singular_name()
{
return _t(__CLASS__ . '.SINGULAR_NAME', 'Arbitrary Datum');
}
/**
* Gives a localisable plural name for the class.
*
* Used in filter header as the placeholder text
*/
public function i18n_plural_name()
{
return _t(__CLASS__ . '.PLURAL_NAME', 'Arbitrary Data');
}
/**
* Used to auto-detect gridfield columns
*/
public function summaryFields()
{
$fieldNames = $this->getFieldNames();
$summaryFields = array_combine($fieldNames, $fieldNames);
unset($summaryFields['ID']);
return $summaryFields;
}
public function getDefaultSearchContext()
{
return BasicSearchContext::create(static::class);
}
public function scaffoldSearchFields()
{
$fieldNames = $this->getFieldNames();
$fields = [HiddenField::create(BasicSearchContext::config()->get('general_search_field_name'))];
foreach ($fieldNames as $fieldName) {
if ($fieldName === 'ID' || $fieldName === 'Created' || $fieldName === 'LastEdited') {
continue;
}
$fields[] = TextField::create($fieldName);
}
return FieldList::create($fields);
}
public function getCMSFields(): FieldList
{
$fieldNames = $this->getFieldNames();
$fields = [];
foreach ($fieldNames as $fieldName) {
switch ($fieldName) {
case 'ID':
$fields[] = HiddenField::create($fieldName);
break;
case 'Created':
case 'LastEdited':
$fields[] = DatetimeField::create($fieldName)->performReadonlyTransformation();
break;
default:
$fields[] = TextField::create($fieldName);
}
}
return FieldList::create($fields);
}
// Note that a FieldsValidator is used by default, but we can add additional validation if we want
// by implementing this method:
// public function getCMSCompositeValidator()
// {
// return CompositeValidator::create([
// FieldsValidator::create(),
// RequiredFields::create(['Title']),
// ]);
// }
public function canCreate()
{
return true;
}
public function canEdit()
{
return true;
}
public function canDelete()
{
return true;
}
private function getFieldNames()
{
$fieldNames = array_keys(ArbitraryDataAdmin::getInitialRecords()[0]);
$fieldNames[] = 'Created';
$fieldNames[] = 'LastEdited';
return $fieldNames;
}
}