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Diffstat (limited to 'framework/Db/schema/oci/TOciCommandBuilder.php')
-rwxr-xr-x | framework/Db/schema/oci/TOciCommandBuilder.php | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/framework/Db/schema/oci/TOciCommandBuilder.php b/framework/Db/schema/oci/TOciCommandBuilder.php new file mode 100755 index 00000000..fc8b8dc9 --- /dev/null +++ b/framework/Db/schema/oci/TOciCommandBuilder.php @@ -0,0 +1,122 @@ +<?php +/** + * TOciCommandBuilder class file. + * + * @author Ricardo Grana <rickgrana@yahoo.com.br> + * @link http://www.yiiframework.com/ + * @copyright Copyright © 2008-2009 Yii Software LLC + * @license http://www.yiiframework.com/license/ + */ + +prado::using('System.db.schema.TDbCommandBuilder'); + +/** + * TOciCommandBuilder provides basic methods to create query commands for tables. + * + * @author Ricardo Grana <rickgrana@yahoo.com.br> + * @version $Id$ + * @package system.db.schema.oci + * @since 1.0.5 + */ +class TOciCommandBuilder extends TDbCommandBuilder +{ + /** + * @var integer the last insertion ID + */ + public $returnID; + + /** + * Returns the last insertion ID for the specified table. + * @param mixed the table schema ({@link TDbTableSchema}) or the table name (string). + * @return mixed last insertion id. Null is returned if no sequence name. + */ + public function getLastInsertID($table) + { + return $this->returnID; + } + + /** + * Alters the SQL to apply LIMIT and OFFSET. + * Default implementation is applicable for PostgreSQL, MySQL and SQLite. + * @param string SQL query string without LIMIT and OFFSET. + * @param integer maximum number of rows, -1 to ignore limit. + * @param integer row offset, -1 to ignore offset. + * @return string SQL with LIMIT and OFFSET + */ + public function applyLimit($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 $sql; + } + + /** + * Creates an INSERT command. + * @param mixed the table schema ({@link TDbTableSchema}) or the table name (string). + * @param array data to be inserted (column name=>column value). If a key is not a valid column name, the corresponding value will be ignored. + * @return TDbCommand insert command + */ + public function createInsertCommand($table,$data) + { + $this->ensureTable($table); + $fields=array(); + $values=array(); + $placeholders=array(); + foreach($data as $name=>$value) + { + if(($column=$table->getColumn($name))!==null && ($value!==null || $column->allowNull)) + { + $fields[]=$column->rawName; + if($value instanceof TDbExpression) + $placeholders[]=(string)$value; + else + { + $placeholders[]=':'.$name; + $values[':'.$name]=$column->typecast($value); + } + } + } + + $sql="INSERT INTO {$table->rawName} (".implode(', ',$fields).') VALUES ('.implode(', ',$placeholders).')'; + + if(is_string($table->primaryKey)) + { + $sql.=" RETURNING ".$table->primaryKey." 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; + } +}
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