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 <?php
 /**
  * Zend Framework
  *
  * LICENSE
  *
  * This source file is subject to the new BSD license that is bundled
  * with this package in the file LICENSE.txt.
  * It is also available through the world-wide-web at this URL:
  * http://framework.zend.com/license/new-bsd
  * If you did not receive a copy of the license and are unable to
  * obtain it through the world-wide-web, please send an email
  * to license@zend.com so we can send you a copy immediately.
  *
  * @category   Zend
  * @package    Zend_Test
  * @subpackage PHPUnit
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  * @version    $Id$
  */
 
 /**
  * @see Zend_Db_Adapter_Abstract
  */
 // require_once "Zend/Db/Adapter/Abstract.php";
 
 /**
  * @see Zend_Test_DbStatement
  */
 // require_once "Zend/Test/DbStatement.php";
 
 /**
  * @see Zend_Db_Profiler
  */
 // require_once 'Zend/Db/Profiler.php';
 
 /**
  * Testing Database Adapter which acts as a stack for SQL Results
  *
  * @category   Zend
  * @package    Zend_Test
  * @subpackage PHPUnit
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  */
 class Zend_Test_DbAdapter extends Zend_Db_Adapter_Abstract
 {
     /**
      * @var array
      */
     protected $_statementStack = array();
 
     /**
      * @var boolean
      */
     protected $_connected = false;
 
     /**
      * @var array
      */
     protected $_listTables = array();
 
     /**
      * @var array
      */
     protected $_lastInsertIdStack = array();
 
     /**
      * @var array
      */
     protected $_describeTables = array();
 
     /**
      * @var string
      */
     protected $_quoteIdentifierSymbol = '';
 
     /**
      * Empty constructor to make it parameterless.
      */
     public function __construct()
     {
         $profiler = new Zend_Db_Profiler();
         $profiler->setEnabled(true);
         $this->setProfiler($profiler);
     }
 
     /**
      * Append a new Statement to the SQL Result Stack.
      *
      * @param  Zend_Test_DbStatement $stmt
      * @return Zend_Test_DbAdapter
      */
     public function appendStatementToStack(Zend_Test_DbStatement $stmt)
     {
         array_push($this->_statementStack, $stmt);
         return $this;
     }
 
     /**
      * Append a new Insert Id to the {@see lastInsertId}.
      *
      * @param  int|string $id
      * @return Zend_Test_DbAdapter
      */
     public function appendLastInsertIdToStack($id)
     {
         array_push($this->_lastInsertIdStack, $id);
         return $this;
     }
 
     /**
      * @var string
      */
     public function setQuoteIdentifierSymbol($symbol)
     {
         $this->_quoteIdentifierSymbol = $symbol;
     }
 
     /**
      * Returns the symbol the adapter uses for delimited identifiers.
      *
      * @return string
      */
     public function getQuoteIdentifierSymbol()
     {
         return $this->_quoteIdentifierSymbol;
     }
 
     /**
      * Set the result from {@see listTables()}.
      *
      * @param array $listTables
      */
     public function setListTables(array $listTables)
     {
         $this->_listTables = $listTables;
     }
 
     /**
      * Returns a list of the tables in the database.
      *
      * @return array
      */
     public function listTables()
     {
        return $this->_listTables;
     }
 
     /**
      *
      * @param  string $table
      * @param  array $tableInfo
      * @return Zend_Test_DbAdapter
      */
     public function setDescribeTable($table, $tableInfo)
     {
         $this->_describeTables[$table] = $tableInfo;
         return $this;
     }
 
     /**
      * Returns the column descriptions for a table.
      *
      * The return value is an associative array keyed by the column name,
      * as returned by the RDBMS.
      *
      * The value of each array element is an associative array
      * with the following keys:
      *
      * SCHEMA_NAME => string; name of database or schema
      * TABLE_NAME  => string;
      * COLUMN_NAME => string; column name
      * COLUMN_POSITION => number; ordinal position of column in table
      * DATA_TYPE   => string; SQL datatype name of column
      * DEFAULT     => string; default expression of column, null if none
      * NULLABLE    => boolean; true if column can have nulls
      * LENGTH      => number; length of CHAR/VARCHAR
      * SCALE       => number; scale of NUMERIC/DECIMAL
      * PRECISION   => number; precision of NUMERIC/DECIMAL
      * UNSIGNED    => boolean; unsigned property of an integer type
      * PRIMARY     => boolean; true if column is part of the primary key
      * PRIMARY_POSITION => integer; position of column in primary key
      *
      * @param string $tableName
      * @param string $schemaName OPTIONAL
      * @return array
      */
     public function describeTable($tableName, $schemaName = null)
     {
         if(isset($this->_describeTables[$tableName])) {
             return $this->_describeTables[$tableName];
         } else {
             return array();
         }
     }
 
     /**
      * Creates a connection to the database.
      *
      * @return void
      */
     protected function _connect()
     {
         $this->_connected = true;
     }
 
     /**
      * Test if a connection is active
      *
      * @return boolean
      */
     public function isConnected()
     {
         return $this->_connected;
     }
 
     /**
      * Force the connection to close.
      *
      * @return void
      */
     public function closeConnection()
     {
         $this->_connected = false;
     }
 
     /**
      * Prepare a statement and return a PDOStatement-like object.
      *
      * @param string|Zend_Db_Select $sql SQL query
      * @return Zend_Db_Statment|PDOStatement
      */
     public function prepare($sql)
     {
         $queryId = $this->getProfiler()->queryStart($sql);
 
         if(count($this->_statementStack)) {
             $stmt = array_pop($this->_statementStack);
         } else {
             $stmt = new Zend_Test_DbStatement();
         }
 
         if($this->getProfiler()->getEnabled() == true) {
             $qp = $this->getProfiler()->getQueryProfile($queryId);
             $stmt->setQueryProfile($qp);
         }
 
         return $stmt;
     }
 
     /**
      * Gets the last ID generated automatically by an IDENTITY/AUTOINCREMENT column.
      *
      * As a convention, on RDBMS brands that support sequences
      * (e.g. Oracle, PostgreSQL, DB2), this method forms the name of a sequence
      * from the arguments and returns the last id generated by that sequence.
      * On RDBMS brands that support IDENTITY/AUTOINCREMENT columns, this method
      * returns the last value generated for such a column, and the table name
      * argument is disregarded.
      *
      * @param string $tableName   OPTIONAL Name of table.
      * @param string $primaryKey  OPTIONAL Name of primary key column.
      * @return string
      */
     public function lastInsertId($tableName = null, $primaryKey = null)
     {
         if(count($this->_lastInsertIdStack)) {
             return array_pop($this->_lastInsertIdStack);
         } else {
             return false;
         }
     }
 
     /**
      * Begin a transaction.
      */
     protected function _beginTransaction()
     {
         return;
     }
 
     /**
      * Commit a transaction.
      */
     protected function _commit()
     {
         return;
     }
 
     /**
      * Roll-back a transaction.
      */
     protected function _rollBack()
     {
 
     }
 
     /**
      * Set the fetch mode.
      *
      * @param integer $mode
      * @return void
      * @throws Zend_Db_Adapter_Exception
      */
     public function setFetchMode($mode)
     {
         return;
     }
 
     /**
      * Adds an adapter-specific LIMIT clause to the SELECT statement.
      *
      * @param mixed $sql
      * @param integer $count
      * @param integer $offset
      * @return string
      */
     public function limit($sql, $count, $offset = 0)
     {
         return sprintf('%s LIMIT %d,%d', $sql, $offset, $count);
     }
 
     /**
      * Check if the adapter supports real SQL parameters.
      *
      * @param string $type 'positional' or 'named'
      * @return bool
      */
     public function supportsParameters($type)
     {
         return true;
     }
 
     /**
      * Retrieve server version in PHP style
      *
      * @return string
      */
     function getServerVersion()
     {
         return "1.0.0";
     }
 }