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dbo_firebird.php

<?php
/* SVN FILE: $Id: dbo_firebird.php 5875 2007-10-23 00:25:51Z phpnut $ */
/**
 * Firebird/Interbase layer for DBO
 *
 * Long description for file
 *
 * PHP versions 4 and 5
 *
 * CakePHP(tm) :  Rapid Development Framework <http://www.cakephp.org/>
 * Copyright 2005-2007, Cake Software Foundation, Inc.
 *                                              1785 E. Sahara Avenue, Suite 490-204
 *                                              Las Vegas, Nevada 89104
 *
 * Licensed under The MIT License
 * Redistributions of files must retain the above copyright notice.
 *
 * @filesource
 * @copyright           Copyright 2005-2007, Cake Software Foundation, Inc.
 * @link                      http://www.cakefoundation.org/projects/info/cakephp CakePHP(tm) Project
 * @package             cake
 * @subpackage          cake.cake.libs.model.dbo
 * @since               CakePHP(tm) v 1.2.0.5152
 * @version             $Revision: 5875 $
 * @modifiedby          $LastChangedBy: phpnut $
 * @lastmodified  $Date: 2007-10-22 19:25:51 -0500 (Mon, 22 Oct 2007) $
 * @license             http://www.opensource.org/licenses/mit-license.php The MIT License
 */
/**
 * Short description for class.
 *
 * Long description for class
 *
 * @package       cake
 * @subpackage    cake.cake.libs.model.dbo
 */
00037 class DboFirebird extends DboSource {
/**
 * Enter description here...
 *
 * @var unknown_type
 */
      var $description = "Firebird/Interbase DBO Driver";
/**
 * Saves the original table name
 *
 * @var unknown_type
 */
      var $modeltmp = array();
/**
 * Enter description here...
 *
 * @var unknown_type
 */
      var $startQuote = "\'";
/**
 * Enter description here...
 *
 * @var unknown_type
 */
      var $endQuote = "\'";
/**
 * Enter description here...
 *
 * @var unknown_type
 */
      var $alias = ' ';
/**
 * Enter description here...
 *
 * @var unknown_type
 */
      var $goofyLimit = true;
/**
 * Creates a map between field aliases and numeric indexes.
 *
 * @var array
 */
      var $__fieldMappings = array();
/**
 * Base configuration settings for Firebird driver
 *
 * @var array
 */
      var $_baseConfig = array(
            'persistent' => true,
            'host' => 'localhost',
            'login' => 'SYSDBA',
            'password' => 'masterkey',
            'database' => 'c:\\CAKE.FDB',
            'port' => '3050',
            'connect' => 'ibase_connect'
      );
/**
 * Firebird column definition
 *
 * @var array
 */
      var $columns = array(
            'primary_key' => array('name' => 'integer IDENTITY (1, 1) NOT NULL'),
            'string'    => array('name'    => 'varchar', 'limit' => '255'),
            'text'            => array('name' => 'BLOB SUB_TYPE 1 SEGMENT SIZE 100 CHARACTER SET NONE'),
            'integer'   => array('name' => 'integer'),
            'float'           => array('name' => 'float', 'formatter' => 'floatval'),
            'datetime'  => array('name' => 'timestamp', 'format'  => 'd.m.Y H:i:s', 'formatter' => 'date'),
            'timestamp' => array('name'   => 'timestamp', 'format'       => 'd.m.Y H:i:s', 'formatter' => 'date'),
            'time'            => array('name' => 'time', 'format'    => 'H:i:s', 'formatter' => 'date'),
            'date'            => array('name' => 'date', 'format'    => 'd.m.Y', 'formatter' => 'date'),
            'binary'    => array('name' => 'blob'),
            'boolean'   => array('name' => 'smallint')
      );
/**
 * Connects to the database using options in the given configuration array.
 *
 * @return boolean True if the database could be connected, else false
 */
00117       function connect() {
            $config = $this->config;
            $connect = $config['connect'];

            $this->connected = false;
            $this->connection = $connect($config['host'] . ':' . $config['database'], $config['login'], $config['password']);
            $this->connected = true;
      }
/**
 * Disconnects from database.
 *
 * @return boolean True if the database could be disconnected, else false
 */
00130       function disconnect() {
            $this->connected = false;
            return @ibase_close($this->connection);
      }
/**
 * Executes given SQL statement.
 *
 * @param string $sql SQL statement
 * @return resource Result resource identifier
 * @access protected
 */
00141       function _execute($sql) {
            if (strpos(strtolower($sql),"update") > 0) {
                  break;
            }
            return @ibase_query($this->connection,    $sql);
      }
/**
 * Returns a row from given resultset as an array .
 *
 * @param boolean $assoc Associative array only, or both?
 * @return array The fetched row as an array
 */
00153       function fetchRow($assoc = false) {
            if (is_resource($this->_result)) {
                  $this->resultSet($this->_result);
                  $resultRow = $this->fetchResult();
                  return $resultRow;
            } else {
                  return null;
            }
      }
/**
 * Returns an array of sources (tables) in the database.
 *
 * @return array Array of tablenames in the database
 */
00167       function listSources() {
            $cache = parent::listSources();

            if ($cache != null) {
                  return $cache;
            }
            $sql = "select RDB" . "$" . "RELATION_NAME as name
                        FROM RDB" ."$" . "RELATIONS
                        Where RDB" . "$" . "SYSTEM_FLAG =0";

            $result = @ibase_query($this->connection,$sql);
            $tables=array();
            while ($row = ibase_fetch_row ($result)) {
                  $tables[] = strtolower(trim($row[0]));
            }
            parent::listSources($tables);
            return $tables;
      }
/**
 * Returns an array of the fields in given table name.
 *
 * @param Model $model Model object to describe
 * @return array Fields in table. Keys are name and type
 */
00191       function describe(&$model) {
            $this->modeltmp[$model->table] = $model->name;
            $cache = parent::describe($model);

            if ($cache != null) {
                  return $cache;
            }
            $fields = false;
            $sql = "SELECT * FROM " . $this->fullTableName($model, false);
            $rs = ibase_query($sql);
            $coln = ibase_num_fields($rs);
            $fields = false;

            for ($i = 0; $i < $coln; $i++) {
                  $col_info = ibase_field_info($rs, $i);
                  $col_info['type'] = $this->column($col_info['type']);

                  $fields[strtolower($col_info['name'])] = array(
                              'type' => $col_info['type'],
                              'null' => '',
                              'length' => $col_info['length']
                        );
            }
            $this->__cacheDescription($this->fullTableName($model, false), $fields);
            return $fields;
      }
/**
 * Returns a quoted name of $data for use in an SQL statement.
 *
 * @param string $data Name (table.field) to be prepared for use in an SQL statement
 * @return string Quoted for Firebird
 */
00223       function name($data) {
            if ($data == '*') {
                        return '*';
            }
            $pos = strpos($data, '"');

            if ($pos === false) {
                  if (!strpos($data, ".")) {
                        $data = '"' . strtoupper($data) . '"';
                  } else {
                        $build = explode('.', $data);
                        $data = '"' . strtoupper($build[0]) . '"."' . strtoupper($build[1]) . '"';
                  }
            }
            return $data;
      }
/**
 * Returns a quoted and escaped string of $data for use in an SQL statement.
 *
 * @param string $data String to be prepared for use in an SQL statement
 * @param string $column The column into which this data will be inserted
 * @param boolean $safe Whether or not numeric data should be handled automagically if no column data is provided
 * @return string Quoted and escaped data
 */
00247       function value($data, $column = null, $safe = false) {
            $parent = parent::value($data, $column, $safe);

            if ($parent != null) {
                  return $parent;
            }
            if ($data === null) {
                  return 'NULL';
            }
            if ($data === '') {
                  return "''";
            }

            switch($column) {
                  case 'boolean':
                        $data = $this->boolean((bool)$data);
                  break;
                  default:
                        if (get_magic_quotes_gpc()) {
                              $data = stripslashes(r("'", "''", $data));
                        } else {
                              $data = r("'", "''", $data);
                        }
                  break;
            }
            return "'" . $data . "'";
      }
/**
 * Removes Identity (primary key) column from update data before returning to parent
 *
 * @param Model $model
 * @param array $fields
 * @param array $values
 * @return array
 */
00282       function update(&$model, $fields = array(), $values = array()) {
            foreach ($fields as $i => $field) {
                  if ($field == $model->primaryKey) {
                        unset ($fields[$i]);
                        unset ($values[$i]);
                        break;
                  }
            }
            return parent::update($model, $fields, $values);
      }
/**
 * Returns a formatted error message from previous database operation.
 *
 * @return string Error message with error number
 */
00297       function lastError() {
            $error = ibase_errmsg();

            if ($error !== false) {
                  return $error;
            }
            return null;
      }
/**
 * Returns number of affected rows in previous database operation. If no previous operation exists,
 * this returns false.
 *
 * @return integer Number of affected rows
 */
00311       function lastAffected() {
            if ($this->_result) {
                  return ibase_affected_rows($this->connection);
            }
            return null;
      }
/**
 * Returns number of rows in previous resultset. If no previous resultset exists,
 * this returns false.
 *
 * @return integer Number of rows in resultset
 */
00323       function lastNumRows() {
            return $this->_result? /*ibase_affected_rows($this->_result)*/ 1: false;
      }
/**
 * Returns the ID generated from the previous INSERT operation.
 *
 * @param unknown_type $source
 * @return in
 */
00332       function lastInsertId($source = null, $field = 'id') {
            $query = "SELECT RDB\$TRIGGER_SOURCE
            FROM RDB\$TRIGGERS WHERE RDB\$RELATION_NAME = '".  strtoupper($source) .  "' AND
            RDB\$SYSTEM_FLAG IS NULL AND  RDB\$TRIGGER_TYPE = 1 ";

            $result = @ibase_query($this->connection,$query);
            $generator = "";

            while ($row = ibase_fetch_row($result, IBASE_TEXT)) {
                  if (strpos($row[0], "NEW." . strtoupper($field))) {
                        $pos = strpos($row[0], "GEN_ID(");

                        if ($pos > 0) {
                              $pos2 = strpos($row[0],",",$pos + 7);

                              if ($pos2 > 0) {
                                    $generator = substr($row[0], $pos +7, $pos2 - $pos- 7);
                              }
                        }
                        break;
                  }
            }

            if (!empty($generator)) {
                  $sql = "SELECT GEN_ID(". $generator  . ",0) AS maxi FROM RDB" . "$" . "DATABASE";
                  $res = $this->rawQuery($sql);
                  $data = $this->fetchRow($res);
                  return $data['maxi'];
            } else {
                  return false;
            }
      }
/**
 * Returns a limit statement in the correct format for the particular database.
 *
 * @param integer $limit Limit of results returned
 * @param integer $offset Offset from which to start results
 * @return string SQL limit/offset statement
 */
00371       function limit($limit, $offset = null) {
            if ($limit) {
                  $rt = '';

                  if (!strpos(strtolower($limit), 'top') || strpos(strtolower($limit), 'top') === 0) {
                        $rt = ' FIRST';
                  }
                  $rt .= ' ' . $limit;

                  if (is_int($offset) && $offset > 0) {
                        $rt .= ' SKIP ' . $offset;
                  }
                  return $rt;
            }
            return null;
      }
/**
 * Converts database-layer column types to basic types
 *
 * @param string $real Real database-layer column type (i.e. "varchar(255)")
 * @return string Abstract column type (i.e. "string")
 */
00393       function column($real) {
            if (is_array($real)) {
                  $col = $real['name'];

                  if (isset($real['limit'])) {
                        $col .= '(' . $real['limit'] . ')';
                  }
                  return $col;
            }

            $col = r(')', '', $real);
            $limit = null;
            @list($col, $limit)=explode('(', $col);

            if (in_array($col, array('DATE', 'TIME'))) {
                  return strtolower($col);
            }
            if ($col == 'TIMESTAMP') {
                  return 'datetime';
            }
            if ($col == 'SMALLINT') {
                  return 'boolean';
            }
            if (strpos($col, 'int') !== false || $col == 'numeric' || $col == 'INTEGER') {
                  return 'integer';
            }
            if (strpos($col, 'char') !== false) {
                  return 'string';
            }
            if (strpos($col, 'text') !== false) {
                  return 'text';
            }
            if (strpos($col, 'VARCHAR') !== false) {
                  return 'string';
            }
            if (strpos($col, 'BLOB') !== false) {
                  return 'text';
            }
            if (in_array($col, array('FLOAT', 'NUMERIC', 'DECIMAL'))) {
                  return 'float';
            }
            return 'text';
      }
/**
 * Enter description here...
 *
 * @param unknown_type $results
 */
00441       function resultSet(&$results) {
            $this->results =& $results;
            $this->map = array();
            $num_fields = ibase_num_fields($results);
            $index = 0;
            $j = 0;

            while ($j < $num_fields) {
                  $column = ibase_field_info($results, $j);
                  if (!empty($column[2])) {
                        $this->map[$index++] = array(ucfirst(strtolower($this->modeltmp[strtolower($column[2])])), strtolower($column[1]));
                  } else {
                        $this->map[$index++] = array(0, strtolower($column[1]));
                  }
                  $j++;
            }
      }
/**
 * Builds final SQL statement
 *
 * @param array $data Query data
 * @return string
 */
00464       function renderStatement($data) {
            extract($data);

            if (preg_match('/offset\s+([0-9]+)/i', $limit, $offset)) {
                  $limit = preg_replace('/\s*offset.*$/i', '', $limit);
                  preg_match('/top\s+([0-9]+)/i', $limit, $limitVal);
                  $offset = intval($offset[1]) + intval($limitVal[1]);
                  $rOrder = $this->__switchSort($order);
                  list($order2, $rOrder) = array($this->__mapFields($order), $this->__mapFields($rOrder));
                  return "SELECT * FROM (SELECT {$limit} * FROM (SELECT TOP {$offset} {$fields} FROM {$table} {$alias} {$joins} {$conditions} {$order}) AS Set1 {$rOrder}) AS Set2 {$order2}";
            } else {
                  return "SELECT {$limit} {$fields} FROM {$table} {$alias} {$joins} {$conditions} {$order}";
            }
      }
/**
 * Fetches the next row from the current result set
 *
 * @return unknown
 */
00483       function fetchResult() {
            if ($row = ibase_fetch_row($this->results, IBASE_TEXT)) {
                  $resultRow = array();
                  $i = 0;

                  foreach ($row as $index => $field) {
                        list($table, $column) = $this->map[$index];

                        if (trim($table) == "") {
                              $resultRow[0][$column] = $row[$index];
                        } else {
                              $resultRow[$table][$column] = $row[$index];
                              $i++;
                        }
                  }
                  return $resultRow;
            } else {
                  return false;
            }
      }
/**
 * Inserts multiple values into a join table
 *
 * @param string $table
 * @param string $fields
 * @param array $values
 */
00510       function insertMulti($table, $fields, $values) {
            $count = count($values);
            for ($x = 0; $x < $count; $x++) {
                  $this->query("INSERT INTO {$table} ({$fields}) VALUES {$values[$x]}");
            }
      }
}
?>

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