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- <?php
- // +----------------------------------------------------------------------+
- // | PHP versions 4 and 5 |
- // +----------------------------------------------------------------------+
- // | Copyright (c) 1998-2004 Manuel Lemos, Tomas V.V.Cox, |
- // | Stig. S. Bakken, Lukas Smith |
- // | All rights reserved. |
- // +----------------------------------------------------------------------+
- // | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB |
- // | API as well as database abstraction for PHP applications. |
- // | This LICENSE is in the BSD license style. |
- // | |
- // | Redistribution and use in source and binary forms, with or without |
- // | modification, are permitted provided that the following conditions |
- // | are met: |
- // | |
- // | Redistributions of source code must retain the above copyright |
- // | notice, this list of conditions and the following disclaimer. |
- // | |
- // | Redistributions in binary form must reproduce the above copyright |
- // | notice, this list of conditions and the following disclaimer in the |
- // | documentation and/or other materials provided with the distribution. |
- // | |
- // | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken, |
- // | Lukas Smith nor the names of his contributors may be used to endorse |
- // | or promote products derived from this software without specific prior|
- // | written permission. |
- // | |
- // | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
- // | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
- // | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
- // | FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
- // | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
- // | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
- // | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS|
- // | OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
- // | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
- // | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY|
- // | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
- // | POSSIBILITY OF SUCH DAMAGE. |
- // +----------------------------------------------------------------------+
- // | Author: Lukas Smith <smith@pooteeweet.org> |
- // +----------------------------------------------------------------------+
- //
- // $Id: Extended.php,v 1.36 2006/02/09 12:45:30 lsmith Exp $
-
- /**
- * @package MDB2
- * @category Database
- * @author Lukas Smith <smith@pooteeweet.org>
- */
-
- /**
- * Used by autoPrepare()
- */
- define('MDB2_AUTOQUERY_INSERT', 1);
- define('MDB2_AUTOQUERY_UPDATE', 2);
-
- /**
- * MDB2_Extended: class which adds several high level methods to MDB2
- *
- * @package MDB2
- * @category Database
- * @author Lukas Smith <smith@pooteeweet.org>
- */
- class MDB2_Extended extends MDB2_Module_Common
- {
- // {{{ autoPrepare()
-
- /**
- * Make automaticaly an insert or update query and call prepare() with it
- *
- * @param string table
- * @param array the fields names
- * @param int type of query to make (MDB2_AUTOQUERY_INSERT or MDB2_AUTOQUERY_UPDATE)
- * @param string (in case of update queries, this string will be put after the sql WHERE statement)
- * @param array that contains the types of the placeholders
- *
- * @return resource handle for the query
- * @see buildManipSQL
- * @access public
- */
- function autoPrepare($table, $table_fields, $mode = MDB2_AUTOQUERY_INSERT,
- $where = false, $types = null)
- {
- $query = $this->buildManipSQL($table, $table_fields, $mode, $where);
- if (PEAR::isError($query)) {
- return $query;
- }
- $db =& $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
-
- return $db->prepare($query, $types, false);
- }
- // }}}
-
- // {{{ autoExecute()
-
- /**
- * Make automaticaly an insert or update query and call prepare() and execute() with it
- *
- * @param string name of the table
- * @param array assoc ($key=>$value) where $key is a field name and $value its value
- * @param int type of query to make (MDB2_AUTOQUERY_INSERT or MDB2_AUTOQUERY_UPDATE)
- * @param string (in case of update queries, this string will be put after the sql WHERE statement)
- * @param array that contains the types of the placeholders
- * @param string which specifies which result class to use
- *
- * @return bool|MDB2_Error true on success, a MDB2 error on failure
- * @see buildManipSQL
- * @see autoPrepare
- * @access public
- */
- function &autoExecute($table, $fields_values, $mode = MDB2_AUTOQUERY_INSERT,
- $where = false, $types = null, $result_class = true)
- {
- $stmt = $this->autoPrepare($table, array_keys($fields_values), $mode, $where, $types);
- if (PEAR::isError($stmt)) {
- return $stmt;
- }
- $params = array_values($fields_values);
- $result =& $stmt->execute($params, $result_class);
- $stmt->free();
- return $result;
- }
- // }}}
-
- // {{{ buildManipSQL()
-
- /**
- * Make automaticaly an sql query for prepare()
- *
- * Example : buildManipSQL('table_sql', array('field1', 'field2', 'field3'), MDB2_AUTOQUERY_INSERT)
- * will return the string : INSERT INTO table_sql (field1,field2,field3) VALUES (?,?,?)
- * NB : - This belongs more to a SQL Builder class, but this is a simple facility
- * - Be carefull ! If you don't give a $where param with an UPDATE query, all
- * the records of the table will be updated !
- *
- * @param string name of the table
- * @param ordered array containing the fields names
- * @param int type of query to make (MDB2_AUTOQUERY_INSERT or MDB2_AUTOQUERY_UPDATE)
- * @param string (in case of update queries, this string will be put after the sql WHERE statement)
- *
- * @return string sql query for prepare()
- * @access public
- */
- function buildManipSQL($table, $table_fields, $mode, $where = false)
- {
- $db =& $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
-
- if (count($table_fields) == 0) {
- return $db->raiseError(MDB2_ERROR_NEED_MORE_DATA);
- }
- switch ($mode) {
- case MDB2_AUTOQUERY_INSERT:
- $cols = implode(', ', $table_fields);
- $values = '?'.str_repeat(', ?', count($table_fields)-1);
- return 'INSERT INTO '.$table.' ('.$cols.') VALUES ('.$values.')';
- break;
- case MDB2_AUTOQUERY_UPDATE:
- $set = implode(' = ?, ', $table_fields).' = ?';
- $sql = 'UPDATE '.$table.' SET '.$set;
- if ($where !== false) {
- $sql.= ' WHERE '.$where;
- }
- return $sql;
- break;
- }
- return $db->raiseError(MDB2_ERROR_SYNTAX);
- }
- // }}}
-
- // {{{ limitQuery()
-
- /**
- * Generates a limited query
- *
- * @param string query
- * @param array that contains the types of the columns in the result set
- * @param integer the row to start to fetching
- * @param integer the numbers of rows to fetch
- * @param string which specifies which result class to use
- *
- * @return MDB2_Result|MDB2_Error result set on success, a MDB2 error on failure
- * @access public
- */
- function &limitQuery($query, $types, $count, $from = 0, $result_class = true)
- {
- $db =& $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
-
- $result = $db->setLimit($count, $from);
- if (PEAR::isError($result)) {
- return $result;
- }
- $result =& $db->query($query, $types, $result_class);
- return $result;
- }
- // }}}
-
- // {{{ getOne()
-
- /**
- * Fetch the first column of the first row of data returned from a query.
- * Takes care of doing the query and freeing the results when finished.
- *
- * @param string the SQL query
- * @param string that contains the type of the column in the result set
- * @param array if supplied, prepare/execute will be used
- * with this array as execute parameters
- * @param array that contains the types of the values defined in $params
- * @param int|string which column to return
- *
- * @return scalar|MDB2_Error data on success, a MDB2 error on failure
- * @access public
- */
- function getOne($query, $type = null, $params = array(),
- $param_types = null, $colnum = 0)
- {
- $db =& $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
-
- settype($params, 'array');
- settype($type, 'array');
- if (count($params) == 0) {
- return $db->queryOne($query, $type, $colnum);
- }
-
- $stmt = $db->prepare($query, $param_types, $type);
- if (PEAR::isError($stmt)) {
- return $stmt;
- }
-
- $stmt->bindParamArray($params);
- $result = $stmt->execute();
- if (!MDB2::isResultCommon($result)) {
- return $result;
- }
-
- $one = $result->fetchOne($colnum);
- $stmt->free();
- $result->free();
- return $one;
- }
- // }}}
-
- // {{{ getRow()
-
- /**
- * Fetch the first row of data returned from a query. Takes care
- * of doing the query and freeing the results when finished.
- *
- * @param string the SQL query
- * @param array that contains the types of the columns in the result set
- * @param array if supplied, prepare/execute will be used
- * with this array as execute parameters
- * @param array that contains the types of the values defined in $params
- * @param int the fetch mode to use
- *
- * @return array|MDB2_Error data on success, a MDB2 error on failure
- * @access public
- */
- function getRow($query, $types = null, $params = array(),
- $param_types = null, $fetchmode = MDB2_FETCHMODE_DEFAULT)
- {
- $db =& $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
-
- settype($params, 'array');
- if (count($params) == 0) {
- return $db->queryRow($query, $types, $fetchmode);
- }
-
- $stmt = $db->prepare($query, $param_types, $types);
- if (PEAR::isError($stmt)) {
- return $stmt;
- }
-
- $stmt->bindParamArray($params);
- $result = $stmt->execute();
- if (!MDB2::isResultCommon($result)) {
- return $result;
- }
-
- $row = $result->fetchRow($fetchmode);
- $stmt->free();
- $result->free();
- return $row;
- }
- // }}}
-
- // {{{ getCol()
-
- /**
- * Fetch a single column from a result set and return it as an
- * indexed array.
- *
- * @param string the SQL query
- * @param string that contains the type of the column in the result set
- * @param array if supplied, prepare/execute will be used
- * with this array as execute parameters
- * @param array that contains the types of the values defined in $params
- * @param int|string which column to return
- *
- * @return array|MDB2_Error data on success, a MDB2 error on failure
- * @access public
- */
- function getCol($query, $type = null, $params = array(),
- $param_types = null, $colnum = 0)
- {
- $db =& $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
-
- settype($params, 'array');
- settype($type, 'array');
- if (count($params) == 0) {
- return $db->queryCol($query, $type, $colnum);
- }
-
- $stmt = $db->prepare($query, $param_types, $type);
- if (PEAR::isError($stmt)) {
- return $stmt;
- }
-
- $stmt->bindParamArray($params);
- $result = $stmt->execute();
- if (!MDB2::isResultCommon($result)) {
- return $result;
- }
-
- $col = $result->fetchCol($colnum);
- $stmt->free();
- $result->free();
- return $col;
- }
- // }}}
-
- // {{{ getAll()
-
- /**
- * Fetch all the rows returned from a query.
- *
- * @param string the SQL query
- * @param array that contains the types of the columns in the result set
- * @param array if supplied, prepare/execute will be used
- * with this array as execute parameters
- * @param array that contains the types of the values defined in $params
- * @param int the fetch mode to use
- * @param bool if set to true, the $all will have the first
- * column as its first dimension
- * @param bool $force_array used only when the query returns exactly
- * two columns. If true, the values of the returned array will be
- * one-element arrays instead of scalars.
- * @param bool $group if true, the values of the returned array is
- * wrapped in another array. If the same key value (in the first
- * column) repeats itself, the values will be appended to this array
- * instead of overwriting the existing values.
- *
- * @return array|MDB2_Error data on success, a MDB2 error on failure
- * @access public
- */
- function getAll($query, $types = null, $params = array(),
- $param_types = null, $fetchmode = MDB2_FETCHMODE_DEFAULT,
- $rekey = false, $force_array = false, $group = false)
- {
- $db =& $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
-
- settype($params, 'array');
- if (count($params) == 0) {
- return $db->queryAll($query, $types, $fetchmode, $rekey, $force_array, $group);
- }
-
- $stmt = $db->prepare($query, $param_types, $types);
- if (PEAR::isError($stmt)) {
- return $stmt;
- }
-
- $stmt->bindParamArray($params);
- $result = $stmt->execute();
- if (!MDB2::isResultCommon($result)) {
- return $result;
- }
-
- $all = $result->fetchAll($fetchmode, $rekey, $force_array, $group);
- $stmt->free();
- $result->free();
- return $all;
- }
- // }}}
-
- // {{{ getAssoc()
-
- /**
- * Fetch the entire result set of a query and return it as an
- * associative array using the first column as the key.
- *
- * If the result set contains more than two columns, the value
- * will be an array of the values from column 2-n. If the result
- * set contains only two columns, the returned value will be a
- * scalar with the value of the second column (unless forced to an
- * array with the $force_array parameter). A MDB2 error code is
- * returned on errors. If the result set contains fewer than two
- * columns, a MDB2_ERROR_TRUNCATED error is returned.
- *
- * For example, if the table 'mytable' contains:
- *
- * ID TEXT DATE
- * --------------------------------
- * 1 'one' 944679408
- * 2 'two' 944679408
- * 3 'three' 944679408
- *
- * Then the call getAssoc('SELECT id,text FROM mytable') returns:
- * array(
- * '1' => 'one',
- * '2' => 'two',
- * '3' => 'three',
- * )
- *
- * ...while the call getAssoc('SELECT id,text,date FROM mytable') returns:
- * array(
- * '1' => array('one', '944679408'),
- * '2' => array('two', '944679408'),
- * '3' => array('three', '944679408')
- * )
- *
- * If the more than one row occurs with the same value in the
- * first column, the last row overwrites all previous ones by
- * default. Use the $group parameter if you don't want to
- * overwrite like this. Example:
- *
- * getAssoc('SELECT category,id,name FROM mytable', null, null
- * MDB2_FETCHMODE_ASSOC, false, true) returns:
- * array(
- * '1' => array(array('id' => '4', 'name' => 'number four'),
- * array('id' => '6', 'name' => 'number six')
- * ),
- * '9' => array(array('id' => '4', 'name' => 'number four'),
- * array('id' => '6', 'name' => 'number six')
- * )
- * )
- *
- * Keep in mind that database functions in PHP usually return string
- * values for results regardless of the database's internal type.
- *
- * @param string the SQL query
- * @param array that contains the types of the columns in the result set
- * @param array if supplied, prepare/execute will be used
- * with this array as execute parameters
- * @param array that contains the types of the values defined in $params
- * @param bool $force_array used only when the query returns
- * exactly two columns. If TRUE, the values of the returned array
- * will be one-element arrays instead of scalars.
- * @param bool $group if TRUE, the values of the returned array
- * is wrapped in another array. If the same key value (in the first
- * column) repeats itself, the values will be appended to this array
- * instead of overwriting the existing values.
- *
- * @return array|MDB2_Error data on success, a MDB2 error on failure
- * @access public
- */
- function getAssoc($query, $types = null, $params = array(), $param_types = null,
- $fetchmode = MDB2_FETCHMODE_DEFAULT, $force_array = false, $group = false)
- {
- $db =& $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
-
- settype($params, 'array');
- if (count($params) == 0) {
- return $db->queryAll($query, $types, $fetchmode, true, $force_array, $group);
- }
-
- $stmt = $db->prepare($query, $param_types, $types);
- if (PEAR::isError($stmt)) {
- return $stmt;
- }
-
- $stmt->bindParamArray($params);
- $result = $stmt->execute();
- if (!MDB2::isResultCommon($result)) {
- return $result;
- }
-
- $all = $result->fetchAll($fetchmode, true, $force_array, $group);
- $stmt->free();
- $result->free();
- return $all;
- }
- // }}}
-
- // {{{ executeMultiple()
-
- /**
- * This function does several execute() calls on the same statement handle.
- * $params must be an array indexed numerically from 0, one execute call is
- * done for every 'row' in the array.
- *
- * If an error occurs during execute(), executeMultiple() does not execute
- * the unfinished rows, but rather returns that error.
- *
- * @param resource query handle from prepare()
- * @param array numeric array containing the data to insert into the query
- *
- * @return bool|MDB2_Error true on success, a MDB2 error on failure
- * @access public
- * @see prepare(), execute()
- */
- function executeMultiple(&$stmt, $params = null)
- {
- for ($i = 0, $j = count($params); $i < $j; $i++) {
- $stmt->bindParamArray($params[$i]);
- $result = $stmt->execute();
- if (PEAR::isError($result)) {
- return $result;
- }
- }
- return MDB2_OK;
- }
- // }}}
-
- // {{{ getBeforeID()
-
- /**
- * returns the next free id of a sequence if the RDBMS
- * does not support auto increment
- *
- * @param string name of the table into which a new row was inserted
- * @param string name of the field into which a new row was inserted
- * @param bool when true the sequence is automatic created, if it not exists
- *
- * @return int|MDB2_Error id on success, a MDB2 error on failure
- * @access public
- */
- function getBeforeID($table, $field = null, $ondemand = true)
- {
- $db =& $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
-
- if ($db->supports('auto_increment') !== true) {
- $seq = $table.(empty($field) ? '' : '_'.$field);
- $id = $db->nextID($seq, $ondemand);
- if (PEAR::isError($id)) {
- return $id;
- }
- return $db->quote($id, 'integer');
- }
- return 'NULL';
- }
- // }}}
-
- // {{{ getAfterID()
-
- /**
- * returns the autoincrement ID if supported or $id
- *
- * @param mixed value as returned by getBeforeId()
- * @param string name of the table into which a new row was inserted
- * @param string name of the field into which a new row was inserted
- *
- * @return int|MDB2_Error id on success, a MDB2 error on failure
- * @access public
- */
- function getAfterID($id, $table, $field = null)
- {
- $db =& $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
-
- if ($db->supports('auto_increment') !== true) {
- return $id;
- }
- return $db->lastInsertID($table, $field);
- }
- // }}}
- }
- ?>
-