/**
* Returns the generation expression for virtual columns
*
* @param string $column name of the column
*
* @return array|boolean associative array of column name and their expressions
* or false on failure
*/
public function getColumnGenerationExpression($column = null)
{
$serverType = PMA_Util::getServerType();
if ($serverType == 'MySQL' && PMA_MYSQL_INT_VERSION > 50705 && !$GLOBALS['cfg']['Server']['DisableIS']) {
$sql = "SELECT\r\n `COLUMN_NAME` AS `Field`,\r\n `GENERATION_EXPRESSION` AS `Expression`\r\n FROM\r\n `information_schema`.`COLUMNS`\r\n WHERE\r\n `TABLE_SCHEMA` = '" . PMA_Util::sqlAddSlashes($this->_db_name) . "'\r\n AND `TABLE_NAME` = '" . PMA_Util::sqlAddSlashes($this->_name) . "'";
if ($column != null) {
$sql .= " AND `COLUMN_NAME` = '" . PMA_Util::sqlAddSlashes($column) . "'";
}
$columns = $this->_dbi->fetchResult($sql, 'Field', 'Expression');
return $columns;
}
$createTable = $this->showCreate();
if (!$createTable) {
return false;
}
$parser = new SqlParser\Parser($createTable);
/**
* @var SqlParser\Statements\CreateStatement $stmt
*/
$stmt = $parser->statements[0];
$fields = SqlParser\Utils\Table::getFields($stmt);
if ($column != null) {
$expression = isset($fields[$column]['expr']) ? substr($fields[$column]['expr'], 1, -1) : '';
return array($column => $expression);
}
$ret = array();
foreach ($fields as $field => $options) {
if (isset($options['expr'])) {
$ret[$field] = substr($options['expr'], 1, -1);
}
}
return $ret;
}
/**
* Gets all Relations to foreign tables for a given table or
* optionally a given column in a table
*
* @param string $db the name of the db to check for
* @param string $table the name of the table to check for
* @param string $column the name of the column to check for
* @param string $source the source for foreign key information
*
* @return array db,table,column
*
* @access public
*/
function PMA_getForeigners($db, $table, $column = '', $source = 'both')
{
$cfgRelation = PMA_getRelationsParam();
$foreign = array();
if ($cfgRelation['relwork'] && ($source == 'both' || $source == 'internal')) {
$rel_query = '
SELECT `master_field`,
`foreign_db`,
`foreign_table`,
`foreign_field`
FROM ' . PMA\libraries\Util::backquote($cfgRelation['db']) . '.' . PMA\libraries\Util::backquote($cfgRelation['relation']) . '
WHERE `master_db` = \'' . PMA\libraries\Util::sqlAddSlashes($db) . '\'
AND `master_table` = \'' . PMA\libraries\Util::sqlAddSlashes($table) . '\' ';
if (mb_strlen($column)) {
$rel_query .= ' AND `master_field` = ' . '\'' . PMA\libraries\Util::sqlAddSlashes($column) . '\'';
}
$foreign = $GLOBALS['dbi']->fetchResult($rel_query, 'master_field', null, $GLOBALS['controllink']);
}
if (($source == 'both' || $source == 'foreign') && mb_strlen($table)) {
$tableObj = new Table($table, $db);
$show_create_table = $tableObj->showCreate();
if ($show_create_table) {
$parser = new SqlParser\Parser($show_create_table);
/**
* @var CreateStatement $stmt
*/
$stmt = $parser->statements[0];
$foreign['foreign_keys_data'] = SqlParser\Utils\Table::getForeignKeys($stmt);
}
}
/**
* Emulating relations for some information_schema tables
*/
$isInformationSchema = mb_strtolower($db) == 'information_schema';
$isMysql = mb_strtolower($db) == 'mysql';
if (($isInformationSchema || $isMysql) && ($source == 'internal' || $source == 'both')) {
if ($isInformationSchema) {
$relations_key = 'information_schema_relations';
include_once './libraries/information_schema_relations.lib.php';
} else {
$relations_key = 'mysql_relations';
include_once './libraries/mysql_relations.lib.php';
}
if (isset($GLOBALS[$relations_key][$table])) {
foreach ($GLOBALS[$relations_key][$table] as $field => $relations) {
if ((!mb_strlen($column) || $column == $field) && (!isset($foreign[$field]) || !mb_strlen($foreign[$field]))) {
$foreign[$field] = $relations;
}
}
}
}
return $foreign;
}
$primary = PMA_Index::getPrimary($table, $db);
$columns_with_index = PMA_getColumnsWithIndex($db, $table, PMA_Index::UNIQUE | PMA_Index::INDEX | PMA_Index::SPATIAL | PMA_Index::FULLTEXT);
$columns_with_unique_index = PMA_getColumnsWithIndex($db, $table, PMA_Index::UNIQUE);
// 3. Get fields
$fields = (array) $GLOBALS['dbi']->getColumns($db, $table, null, true);
// Get more complete field information
// For now, this is done just for MySQL 4.1.2+ new TIMESTAMP options
// but later, if the analyser returns more information, it
// could be executed for any MySQL version and replace
// the info given by SHOW FULL COLUMNS FROM.
//
// We also need this to correctly learn if a TIMESTAMP is NOT NULL, since
// SHOW FULL COLUMNS or INFORMATION_SCHEMA incorrectly says NULL
// and SHOW CREATE TABLE says NOT NULL (tested
// in MySQL 4.0.25 and 5.0.21, http://bugs.mysql.com/20910).
$tableObj = new PMA_Table($table, $db);
$show_create_table = $tableObj->showCreate();
$parser = new SqlParser\Parser($show_create_table);
/**
* @var CreateStatement $stmt
*/
$stmt = $parser->statements[0];
$create_table_fields = SqlParser\Utils\Table::getFields($stmt);
/**
* prepare table infos
*/
// action titles (image or string)
$titles = PMA_getActionTitlesArray();
//display table structure
require_once 'libraries/display_structure.inc.php';
$response->addHTML('</div>');
