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www.mikescher.com/framework/db/schema/oci/COciCommandBuilder.php

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2014-05-13 12:40:42 +02:00
<?php
/**
* COciCommandBuilder class file.
*
* @author Ricardo Grana <rickgrana@yahoo.com.br>
* @link http://www.yiiframework.com/
* @copyright 2008-2013 Yii Software LLC
* @license http://www.yiiframework.com/license/
*/
/**
* COciCommandBuilder provides basic methods to create query commands for tables.
*
* @author Ricardo Grana <rickgrana@yahoo.com.br>
* @package system.db.schema.oci
*/
class COciCommandBuilder extends CDbCommandBuilder
{
/**
* @var integer the last insertion ID
*/
public $returnID;
/**
* Returns the last insertion ID for the specified table.
* @param mixed $table the table schema ({@link CDbTableSchema}) or the table name (string).
* @return mixed last insertion id. Null is returned if no sequence name.
*/
public function getLastInsertID($table)
{
return $this->returnID;
}
/**
* Alters the SQL to apply LIMIT and OFFSET.
* Default implementation is applicable for PostgreSQL, MySQL and SQLite.
* @param string $sql SQL query string without LIMIT and OFFSET.
* @param integer $limit maximum number of rows, -1 to ignore limit.
* @param integer $offset row offset, -1 to ignore offset.
* @return string SQL with LIMIT and OFFSET
*/
public function applyLimit($sql,$limit,$offset)
{
if (($limit < 0) and ($offset < 0)) return $sql;
$filters = array();
if($offset>0){
$filters[] = 'rowNumId > '.(int)$offset;
}
if($limit>=0){
$filters[]= 'rownum <= '.(int)$limit;
}
if (count($filters) > 0){
$filter = implode(' and ', $filters);
$filter= " WHERE ".$filter;
}else{
$filter = '';
}
$sql = <<<EOD
WITH USER_SQL AS ({$sql}),
PAGINATION AS (SELECT USER_SQL.*, rownum as rowNumId FROM USER_SQL)
SELECT *
FROM PAGINATION
{$filter}
EOD;
return $sql;
}
/**
* Creates an INSERT command.
* @param mixed $table the table schema ({@link CDbTableSchema}) or the table name (string).
* @param array $data data to be inserted (column name=>column value). If a key is not a valid column name, the corresponding value will be ignored.
* @return CDbCommand insert command
*/
public function createInsertCommand($table,$data)
{
$this->ensureTable($table);
$fields=array();
$values=array();
$placeholders=array();
$i=0;
foreach($data as $name=>$value)
{
if(($column=$table->getColumn($name))!==null && ($value!==null || $column->allowNull))
{
$fields[]=$column->rawName;
if($value instanceof CDbExpression)
{
$placeholders[]=$value->expression;
foreach($value->params as $n=>$v)
$values[$n]=$v;
}
else
{
$placeholders[]=self::PARAM_PREFIX.$i;
$values[self::PARAM_PREFIX.$i]=$column->typecast($value);
$i++;
}
}
}
$sql="INSERT INTO {$table->rawName} (".implode(', ',$fields).') VALUES ('.implode(', ',$placeholders).')';
if(is_string($table->primaryKey) && ($column=$table->getColumn($table->primaryKey))!==null && $column->type!=='string')
{
$sql.=' RETURNING '.$column->rawName.' INTO :RETURN_ID';
$command=$this->getDbConnection()->createCommand($sql);
$command->bindParam(':RETURN_ID', $this->returnID, PDO::PARAM_INT, 12);
$table->sequenceName='RETURN_ID';
}
else
$command=$this->getDbConnection()->createCommand($sql);
foreach($values as $name=>$value)
$command->bindValue($name,$value);
return $command;
}
/**
* Creates a multiple INSERT command.
* This method could be used to achieve better performance during insertion of the large
* amount of data into the database tables.
* @param mixed $table the table schema ({@link CDbTableSchema}) or the table name (string).
* @param array[] $data list data to be inserted, each value should be an array in format (column name=>column value).
* If a key is not a valid column name, the corresponding value will be ignored.
* @return CDbCommand multiple insert command
* @since 1.1.14
*/
public function createMultipleInsertCommand($table,array $data)
{
$templates=array(
'main'=>'INSERT ALL {{rowInsertValues}} SELECT * FROM dual',
'columnInsertValue'=>'{{value}}',
'columnInsertValueGlue'=>', ',
'rowInsertValue'=>'INTO {{tableName}} ({{columnInsertNames}}) VALUES ({{columnInsertValues}})',
'rowInsertValueGlue'=>' ',
'columnInsertNameGlue'=>', ',
);
return $this->composeMultipleInsertCommand($table,$data,$templates);
}
}