/**
* Prevent duplicate code being entered.
*
* @param \ValidationResult $result
* @return array|void
* @throws \ValidationException
*/
public function validate(ValidationResult $result)
{
// this could throw an exception, let it
parent::validate($result);
$code = $this->owner->{self::CodeFieldName};
if ($this->owner->isInDB()) {
// code should be read-only in CMS but check anyway that doesn't exist on another ID
$existing = Model::get($this->owner->class)->exclude('ID', $this->owner->ID)->filter(self::CodeFieldName, $code)->first();
} else {
// check code doesn't exist already
$existing = Model::get($this->owner->class)->filter(self::CodeFieldName, $code)->first();
}
if ($existing) {
$message = $this->fieldDecoration(self::CodeFieldName, 'Duplicate', "Code must be unique, the {singular} '{title}' already uses '{code}'", ['code' => $code, 'title' => $existing->Title ?: $existing->Name]);
$result->error($message);
throw new ValidationException($result);
}
}
/**
* If we don't already have an associated block then create and attach one (BlockType is the class selector). If we do
* have an associated block then check it is of correct class, if not re-create and relate it as correct Class. It will leave dangling
* blocks.
*
* We do this because initially only a single Block of constrained Class (type) can be created, however doing it this way enables us
* to keep templates clean via Blocks interface and possibly easier change later to more than one block or new block types.
*/
public function onBeforeWrite()
{
// just get the data for this extension when creating blocks.
$blockData = $this()->extendedFieldData();
// block type is either the class of the current block or the BlockTypeField name which is not in the DB but submitted by CMS form.
$blockType = $this->getBlockType();
/** @var Model $block */
if (!($block = $this()->Block())) {
// create a new related block
$block = Model::create($blockType, $blockData);
$this()->BlockID = $block->write();
} else {
if ($block->ClassName != $blockType) {
/** @var Block $newBlock */
$block = $blockType::create($blockData);
// force insert
$this()->BlockID = $block->write(false, true);
// this will leave dangling blocks
} else {
$block->update($blockData);
$block->write();
}
}
}
public function getCMSFields()
{
$fields = parent::getCMSFields();
$fields->replaceField('Sort', new \ReadonlyField('Sort', 'Sort order'));
return $fields;
}
public function getCMSFields()
{
$fields = parent::getCMSFields();
$fields->replaceField(self::SortFieldName, new \HiddenField(self::SortFieldName));
return $fields;
}
