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DatabaseMap.php
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DatabaseMap.php
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<?php
/**
* This file is part of the Propel package.
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*
* @license MIT License
*/
/**
* DatabaseMap is used to model a database.
*
* GENERAL NOTE
* ------------
* The propel.map classes are abstract building-block classes for modeling
* the database at runtime. These classes are similar (a lite version) to the
* propel.engine.database.model classes, which are build-time modeling classes.
* These classes in themselves do not do any database metadata lookups.
*
* @author Hans Lellelid <hans@xmpl.org> (Propel)
* @author John D. McNally <jmcnally@collab.net> (Torque)
* @author Daniel Rall <dlr@collab.net> (Torque)
* @version $Revision$
* @package propel.runtime.map
*/
class DatabaseMap
{
/** @var string Name of the database. */
protected $name;
/** @var array TableMap[] Tables in the database, using table name as key */
protected $tables = array();
/** @var array TableMap[] Tables in the database, using table phpName as key */
protected $tablesByPhpName = array();
/**
* Constructor.
*
* @param string $name Name of the database.
*/
public function __construct($name)
{
$this->name = $name;
}
/**
* Get the name of this database.
*
* @return string The name of the database.
*/
public function getName()
{
return $this->name;
}
/**
* Add a new table to the database by name.
*
* @param string $tableName The name of the table.
*
* @return TableMap The newly created TableMap.
*/
public function addTable($tableName)
{
$this->tables[$tableName] = new TableMap($tableName, $this);
return $this->tables[$tableName];
}
/**
* Add a new table object to the database.
*
* @param TableMap $table The table to add
*/
public function addTableObject(TableMap $table)
{
$table->setDatabaseMap($this);
$this->tables[$table->getName()] = $table;
$this->tablesByPhpName[$table->getClassname()] = $table;
}
/**
* Add a new table to the database, using the tablemap class name.
*
* @param string $tableMapClass The name of the table map to add
*
* @return TableMap The TableMap object
*/
public function addTableFromMapClass($tableMapClass)
{
$table = new $tableMapClass();
if (!$this->hasTable($table->getName())) {
$this->addTableObject($table);
return $table;
} else {
return $this->getTable($table->getName());
}
}
/**
* Does this database contain this specific table?
*
* @param string $name The String representation of the table.
*
* @return boolean True if the database contains the table.
*/
public function hasTable($name)
{
return array_key_exists($name, $this->tables);
}
/**
* Get a TableMap for the table by name.
*
* @param string $name Name of the table.
*
* @return TableMap A TableMap
* @throws PropelException if the table is undefined
*/
public function getTable($name)
{
if (!isset($this->tables[$name])) {
throw new PropelException("Cannot fetch TableMap for undefined table: " . $name);
}
return $this->tables[$name];
}
/**
* Get a TableMap[] of all of the tables in the database.
*
* @return array A TableMap[].
*/
public function getTables()
{
return $this->tables;
}
/**
* Get a ColumnMap for the column by name.
* Name must be fully qualified, e.g. book.AUTHOR_ID
*
* @param $qualifiedColumnName Name of the column.
*
* @return ColumnMap A TableMap
* @throws PropelException if the table is undefined, or if the table is undefined
*/
public function getColumn($qualifiedColumnName)
{
list($tableName, $columnName) = explode('.', $qualifiedColumnName);
return $this->getTable($tableName)->getColumn($columnName, false);
}
// deprecated methods
/**
* Does this database contain this specific table?
*
* @deprecated Use hasTable() instead
*
* @param string $name The String representation of the table.
*
* @return boolean True if the database contains the table.
*/
public function containsTable($name)
{
return $this->hasTable($name);
}
public function getTableByPhpName($phpName)
{
if (array_key_exists($phpName, $this->tablesByPhpName)) {
return $this->tablesByPhpName[$phpName];
} elseif (defined($phpName . '::PEER')) {
$peerClass = constant($phpName . '::PEER');
$tmClass = constant($peerClass . '::TM_CLASS');
$this->addTableFromMapClass($tmClass);
return $this->tablesByPhpName[$phpName];
} else {
throw new PropelException("Cannot fetch TableMap for undefined table phpName: " . $phpName);
}
}
/**
* Convenience method to get the DBAdapter registered with Propel for this database.
*
* @return DBAdapter
* @see Propel::getDB(string)
*/
public function getDBAdapter()
{
return Propel::getDB($this->name);
}
}