<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
 * handles creation of VIEWs
 *
 * @todo js error when view name is empty (strFormEmpty)
 * @todo (also validate if js is disabled, after form submission?)
 * @package PhpMyAdmin
 */

/**
 *
 */
require_once './libraries/common.inc.php';

/**
 * Runs common work
 */
require './libraries/db_common.inc.php';
$url_params['goto'] = 'tbl_structure.php';
$url_params['back'] = 'view_create.php';

$view_algorithm_options = array(
	'UNDEFINED',
	'MERGE',
	'TEMPTABLE',
);

$view_with_options = array(
	'CASCADED',
	'LOCAL'
);

$view_security_options = array(
	'DEFINER',
	'INVOKER'
);

if (empty($sql_query)) {
	$sql_query = '';
}

if (isset($_REQUEST['createview']) || isset($_REQUEST['alterview'])) {
	/**
	 * Creates the view
	 */
	$sep = "\r\n";

	if (isset($_REQUEST['createview'])) {
		$sql_query = 'CREATE';
		if (isset($_REQUEST['view']['or_replace'])) {
			$sql_query .= ' OR REPLACE';
		}
	} else {
		$sql_query = 'ALTER';
	}

	if (PMA_isValid($_REQUEST['view']['algorithm'], $view_algorithm_options)) {
		$sql_query .= $sep . ' ALGORITHM = ' . $_REQUEST['view']['algorithm'];
	}

	if (! empty($_REQUEST['view']['definer'])) {
		$sql_query .= $sep . ' DEFINER = ' . $_REQUEST['view']['definer'];
	}

	if (isset($_REQUEST['view']['sql_security'])) {
		if (in_array($_REQUEST['view']['sql_security'], $view_security_options)) {
			$sql_query .= $sep . ' SQL SECURITY '
				. $_REQUEST['view']['sql_security'];
		}
	}

	$sql_query .= $sep . ' VIEW ' . PMA_Util::backquote($_REQUEST['view']['name']);

	if (! empty($_REQUEST['view']['column_names'])) {
		$sql_query .= $sep . ' (' . $_REQUEST['view']['column_names'] . ')';
	}

	$sql_query .= $sep . ' AS ' . $_REQUEST['view']['as'];

	if (isset($_REQUEST['view']['with'])) {
		if (in_array($_REQUEST['view']['with'], $view_with_options)) {
			$sql_query .= $sep . ' WITH ' . $_REQUEST['view']['with']
				. '	 CHECK OPTION';
		}
	}

	if ($GLOBALS['dbi']->tryQuery($sql_query)) {

		include_once './libraries/tbl_views.lib.php';

		// If different column names defined for VIEW
		$view_columns = array();
		if (isset($_REQUEST['view']['column_names'])) {
			$view_columns = explode(',', $_REQUEST['view']['column_names']);
		}

		$column_map = PMA_getColumnMap($_REQUEST['view']['as'], $view_columns);
		$pma_tranformation_data = PMA_getExistingTransformationData($GLOBALS['db']);

		if ($pma_tranformation_data !== false) {

			// SQL for store new transformation details of VIEW
			$new_transformations_sql = PMA_getNewTransformationDataSql(
				$pma_tranformation_data, $column_map, $_REQUEST['view']['name'],
				$GLOBALS['db']
			);

			// Store new transformations
			if ($new_transformations_sql != '') {
				$GLOBALS['dbi']->tryQuery($new_transformations_sql);
			}

		}
		unset($pma_tranformation_data);

		if (! isset($_REQUEST['ajax_dialog'])) {
			$message = PMA_Message::success();
			include 'tbl_structure.php';
		} else {
			$response = PMA_Response::getInstance();
			$response->addJSON(
				'message',
				PMA_Util::getMessage(
					PMA_Message::success(), $sql_query
				)
			);
			$response->isSuccess(true);
		}

		exit;

	} else {
		if (! isset($_REQUEST['ajax_dialog'])) {
			$message = PMA_Message::rawError($GLOBALS['dbi']->getError());
		} else {
			$response = PMA_Response::getInstance();
			$response->addJSON(
				'message',
				PMA_Message::error(
					"<i>" . htmlspecialchars($sql_query) . "</i><br /><br />"
					. $GLOBALS['dbi']->getError()
				)
			);
			$response->isSuccess(false);
			exit;
		}
	}
}

// prefill values if not already filled from former submission
$view = array(
	'operation' => 'create',
	'or_replace' => '',
	'algorithm' => '',
	'definer' => '',
	'sql_security' => '',
	'name' => '',
	'column_names' => '',
	'as' => $sql_query,
	'with' => '',
);

if (PMA_isValid($_REQUEST['view'], 'array')) {
	$view = array_merge($view, $_REQUEST['view']);
}

$url_params['db'] = $GLOBALS['db'];
$url_params['reload'] = 1;

/**
 * Displays the page
 */
$htmlString = '<!-- CREATE VIEW options -->'
	. '<div id="div_view_options">'
	. '<form method="post" action="view_create.php">'
	. PMA_URL_getHiddenInputs($url_params)
	. '<fieldset>'
	. '<legend>'
	. (isset($_REQUEST['ajax_dialog']) ?
		__('Details') :
		($view['operation'] == 'create' ? __('Create view') : __('Edit view'))
	)
	. '</legend>'
	. '<table class="rte_table">';

if ($view['operation'] == 'create') {
	$htmlString .= '<tr>'
		. '<td class="nowrap"><label for="or_replace">OR REPLACE</label></td>'
		. '<td><input type="checkbox" name="view[or_replace]" id="or_replace"';
	if ($view['or_replace']) {
		$htmlString .= ' checked="checked"';
	}
	$htmlString .= ' value="1" /></td></tr>';
}

$htmlString .= '<tr>'
	. '<td class="nowrap"><label for="algorithm">ALGORITHM</label></td>'
	. '<td><select name="view[algorithm]" id="algorithm">';
foreach ($view_algorithm_options as $option) {
	$htmlString .= '<option value="' . htmlspecialchars($option) . '"';
	if ($view['algorithm'] === $option) {
		$htmlString .= ' selected="selected"';
	}
	$htmlString .= '>' . htmlspecialchars($option) . '</option>';
}
$htmlString .= '</select>'
	. '</td></tr>';

$htmlString .= '<tr><td class="nowrap">' . __('Definer') . '</td>'
	. '<td><input type="text" maxlength="100" size="50" name="view[definer]"'
	. ' value="' . htmlspecialchars($view['definer']) . '" />'
	. '</td></tr>';

$htmlString .= '<tr><td class="nowrap">SQL SECURITY</td>'
	. '<td><select name="view[sql_security]">'
	. '<option value=""></option>';
foreach ($view_security_options as $option) {
	$htmlString .= '<option value="' . htmlspecialchars($option) . '"';
	if ($option == $view['sql_security']) {
		$htmlString .= ' selected="selected"';
	}
	$htmlString .= '>' . htmlspecialchars($option) . '</option>';
}
$htmlString .= '<select>'
	. '</td></tr>';

if ($view['operation'] == 'create') {
	$htmlString .= '<tr><td class="nowrap">' . __('VIEW name') . '</td>'
		. '<td><input type="text" size="20" name="view[name]"'
		. ' onfocus="this.select()"'
		. ' value="' . htmlspecialchars($view['name']) . '" />'
		. '</td></tr>';
} else {
	$htmlString .= '<tr><td><input type="hidden" name="view[name]"'
		. ' value="' . htmlspecialchars($view['name']) . '" />'
		. '</td></tr>';
}

$htmlString .= '<tr><td class="nowrap">' . __('Column names') . '</td>'
	. '<td><input type="text" maxlength="100" size="50" name="view[column_names]"'
	. ' onfocus="this.select()"'
	. ' value="' . htmlspecialchars($view['column_names']) . '" />'
	. '</td></tr>';

$htmlString .= '<tr><td class="nowrap">AS</td>'
	. '<td>'
	. '<textarea name="view[as]" rows="' . $cfg['TextareaRows'] . '"'
	. ' cols="' . $cfg['TextareaCols'] . '" dir="' . $text_dir . '"';
if ($GLOBALS['cfg']['TextareaAutoSelect'] || true) {
	$htmlString .= ' onclick="selectContent(this, sql_box_locked, true)"';
}
$htmlString .= '>' . htmlspecialchars($view['as']) . '</textarea>'
	. '</td></tr>';

$htmlString .= '<tr><td class="nowrap">WITH CHECK OPTION</td>'
	. '<td><select name="view[with]">'
	. '<option value=""></option>';
foreach ($view_with_options as $option) {
	$htmlString .= '<option value="' . htmlspecialchars($option) . '"';
	if ($option == $view['with']) {
		$htmlString .= ' selected="selected"';
	}
	$htmlString .= '>' . htmlspecialchars($option) . '</option>';
}
$htmlString .= '<select>'
	. '</td></tr>';

$htmlString .= '</table>'
	. '</fieldset>';

if (! isset($_REQUEST['ajax_dialog'])) {
	$htmlString .= '<fieldset class="tblFooters">'
		. '<input type="hidden" name="'
		. ($view['operation'] == 'create' ? 'createview' : 'alterview' )
		. '" value="1" />'
		. '<input type="submit" name="" value="' . __('Go') . '" />'
		. '</fieldset>';
} else {
	$htmlString .= '<input type="hidden" name="'
		. ($view['operation'] == 'create' ? 'createview' : 'alterview' )
		. '" value="1" />'
		. '<input type="hidden" name="ajax_dialog" value="1" />'
		. '<input type="hidden" name="ajax_request" value="1" />';
}

$htmlString .= '</form>'
	. '</div>';

echo $htmlString;
?>
