<?php
/**
* This file contains the DBTable class.
*
* @author Gonzalo Chumillas <gonzalo@soloproyectos.com>
* @package database
*/
require_once dirname(__DIR__) . "/database/db-query.php";
require_once dirname(__DIR__) . "/database/db-column.php";
/**
* class DBTable
* @package database
*/
class DBTable {
const INNER_JOIN = "inner";
const LEFT_JOIN = "left";
/**
* Query.
* @var DBQuery
*/
private $query;
/**
* Table alias.
* @var string
*/
private $alias = "";
/**
* Table name.
* @var string
*/
private $name = "";
/**
* Join type.
* @var string
*/
private $join_type = DBTable::LEFT_JOIN;
/**
* Primary key column.
* @var DBColumn
*/
private $primary_key;
/**
* Table columns.
* @var array[DBColumn]
*/
private $columns = array();
/**
* @param DBQuery $query
* @param string $name
*/
public function __construct($query, $alias) {
$this->query = $query;
$this->alias = $alias;
}
/**
* Gets table name.
* @return string
*/
public function getName() {
return $this->name;
}
/**
* Sets table name.
* @param string $name
*/
public function setName($name) {
$this->name = $name;
}
public function getJoinType() {
return $this->join_type;
}
public function setJoinType($join_type) {
$this->join_type = $join_type;
}
/**
* Gets table alias.
* @return string
*/
public function getAlias() {
return $this->alias;
}
/**
* Gets the table columns.
* @return array[DBColumn]
*/
public function getColumns() {
$ret = array();
foreach ($this->columns as $column) {
array_push($ret, $column);
}
return $ret;
}
/**
* Gets column by name.
* @param string $name
* @return DBColumn
*/
public function getColumnByName($name) {
$ret = NULL;
foreach ($this->columns as $column) {
if ($column->getName() == $name) {
$ret = $column;
break;
}
}
return $ret;
}
/**
* Sets the primary key column.
* @param DBColumn $column
*/
public function setPrimaryKey($column) {
$this->primary_key = $column;
}
/**
* Gets the primary key column.
* @return DBColumn
*/
public function getPrimaryKey() {
return $this->primary_key;
}
/**
* Registers a new columns.
* @param DBColumn $column
*/
public function registerColumn($column) {
$pos = array_search($column, $this->columns, TRUE);
if ($pos === FALSE) {
array_push($this->columns, $column);
}
}
/**
* Has the table changed?
* @return boolean
*/
public function hasChanged() {
$ret = FALSE;
foreach ($this->columns as $column) {
if ($column->hasChanged()) {
$ret = TRUE;
break;
}
}
return $ret;
}
}
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