PhabricatorDataNotAttachedException.php
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PhabricatorDataNotAttachedException.php
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	<?php

	final class PhabricatorDataNotAttachedException extends Exception {

	public function __construct($object) {
	$stack = debug_backtrace();

	// Shift off `PhabricatorDataNotAttachedException::__construct()`.
	array_shift($stack);
	// Shift off `PhabricatorLiskDAO::assertAttached()`.
	array_shift($stack);

	$frame = head($stack);
	$via = null;
	if (is_array($frame)) {
	$method = idx($frame, 'function');
	if (preg_match('/^get[A-Z]/', $method)) {
	$via = ' '.pht('(via %s)', "{$method}()");
	}
	}

	parent::__construct(
	pht(
	"Attempting to access attached data on %s, but the data is not ".
	"actually attached. Before accessing attachable data on an object, ".
	"you must load and attach it.\n\n".
	"Data is normally attached by calling the corresponding %s method on ".
	"the Query class when the object is loaded. You can also call the ".
	"corresponding %s method explicitly.",
	get_class($object).$via,
	'needX()',
	'attachX()'));
	}

	}