/**
* Transform the named field into a readonly feld.
*
* @param string|FormField
* @return bool
*/
public function makeFieldReadonly($field)
{
$fieldName = $field instanceof FormField ? $field->getName() : $field;
// Iterate on items, looking for the applicable field
foreach ($this->children as $i => $item) {
if ($item instanceof CompositeField) {
if ($item->makeFieldReadonly($fieldName)) {
return true;
}
} elseif ($item instanceof FormField && $item->getName() == $fieldName) {
// Once it's found, use FormField::transform to turn the field into a readonly version of itself.
$this->children->replaceField($fieldName, $item->transform(new ReadonlyTransformation()));
// A true results indicates that the field was found
return true;
}
}
return false;
}
/**
* Test replacing a field with another one.
*/
public function testReplaceField()
{
$fields = new FieldList();
$tab = new Tab('Root');
$fields->push($tab);
/* A field gets added to the set */
$fields->addFieldToTab('Root', new TextField('Country'));
$this->assertSame($fields->dataFieldByName('Country'), $tab->fieldByName('Country'));
$fields->replaceField('Country', new EmailField('Email'));
$this->assertEquals(1, $tab->Fields()->Count());
$fields = new FieldList();
$fields->push(new TextField('Name', 'Your name'));
$brack = new TextField('Name[Field]', 'Your name');
$fields->replaceField('Name', $brack);
$this->assertEquals(1, $fields->Count());
$this->assertEquals('Name[Field]', $fields->first()->getName());
}