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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> |
+// +----------------------------------------------------------------------+
+//
+// $Id$
+
+/**
+ * @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 name of the table
+ * @param array $table_fields ordered array containing the fields names
+ * @param int $mode type of query to make (MDB2_AUTOQUERY_INSERT or MDB2_AUTOQUERY_UPDATE)
+ * @param string $where in case of update queries, this string will be put after the sql WHERE statement
+ * @return resource handle for the query
+ * @param mixed $types array that contains the types of the placeholders
+ * @param mixed $result_types array that contains the types of the columns in
+ * the result set
+ * @see buildManipSQL
+ * @access public
+ */
+ function autoPrepare($table, $table_fields, $mode = MDB2_AUTOQUERY_INSERT,
+ $where = false, $types = null, $result_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, $result_types);
+ }
+
+ // {{{
+ // }}} autoExecute()
+
+ /**
+ * Make automaticaly an insert or update query and call prepare() and execute() with it
+ *
+ * @param string $table name of the table
+ * @param array $fields_values assoc ($key=>$value) where $key is a field name and $value its value
+ * @param int $mode type of query to make (MDB2_AUTOQUERY_INSERT or MDB2_AUTOQUERY_UPDATE)
+ * @param string $where in case of update queries, this string will be put after the sql WHERE statement
+ * @param mixed $types array that contains the types of the placeholders
+ * @param mixed $result_types array that contains the types of the columns in
+ * the result set
+ * @param mixed $result_class string which specifies which result class to use
+ * @return mixed a new MDB2_Result or a MDB2 Error Object when fail
+ * @see buildManipSQL
+ * @see autoPrepare
+ * @access public
+ */
+ function &autoExecute($table, $fields_values, $mode = MDB2_AUTOQUERY_INSERT,
+ $where = false, $types = null, $result_types = null, $result_class = true)
+ {
+ $stmt = $this->autoPrepare($table, array_keys($fields_values), $mode, $where, $types, $result_types);
+ if (PEAR::isError($stmt)) {
+ return $stmt;
+ }
+ $params = array_values($fields_values);
+ $stmt->bindParamArray($params);
+ $result =& $stmt->execute($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 $table name of the table
+ * @param array $table_fields ordered array containing the fields names
+ * @param int $mode type of query to make (MDB2_AUTOQUERY_INSERT or MDB2_AUTOQUERY_UPDATE)
+ * @param string $where in case of update queries, this string will be put after the sql WHERE statement
+ * @return string sql query for prepare()
+ * @access public
+ */
+ function buildManipSQL($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 query
+ * @param mixed $types array that contains the types of the columns in
+ * the result set
+ * @param integer $from the row to start to fetching
+ * @param integer $count the numbers of rows to fetch
+ * @param mixed $result_class string which specifies which result class to use
+ * @return mixed a valid ressource pointer or a MDB2 Error Object
+ * @access public
+ */
+ function &limitQuery($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 $query the SQL query
+ * @param string $type string that contains the type of the column in the
+ * result set
+ * @param array $params if supplied, prepare/execute will be used
+ * with this array as execute parameters
+ * @param array $param_types array that contains the types of the values
+ * defined in $params
+ * @param mixed $colnum which column to return
+ * @return mixed MDB2_OK or data on success, a MDB2 error on failure
+ * @access public
+ */
+ function getOne($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 $query the SQL query
+ * @param array $types array that contains the types of the columns in
+ * the result set
+ * @param array $params array if supplied, prepare/execute will be used
+ * with this array as execute parameters
+ * @param array $param_types array that contains the types of the values
+ * defined in $params
+ * @param integer $fetchmode the fetch mode to use
+ * @return mixed MDB2_OK or data array on success, a MDB2 error on failure
+ * @access public
+ */
+ function getRow($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 $query the SQL query
+ * @param string $type string that contains the type of the column in the
+ * result set
+ * @param array $params array if supplied, prepare/execute will be used
+ * with this array as execute parameters
+ * @param array $param_types array that contains the types of the values
+ * defined in $params
+ * @param mixed $colnum which column to return
+ * @return mixed MDB2_OK or data array on success, a MDB2 error on failure
+ * @access public
+ */
+ function getCol($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 $query the SQL query
+ * @param array $types array that contains the types of the columns in
+ * the result set
+ * @param array $params array if supplied, prepare/execute will be used
+ * with this array as execute parameters
+ * @param array $param_types array that contains the types of the values
+ * defined in $params
+ * @param integer $fetchmode the fetch mode to use
+ * @param boolean $rekey if set to true, the $all will have the first
+ * column as its first dimension
+ * @param boolean $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 boolean $group if true, the values of the returned array is
+ * wrapped in another array. If the same key value (in the first
+ * column) repeats itself, the values will be appended to this array
+ * instead of overwriting the existing values.
+ * @return mixed MDB2_OK or data array on success, a MDB2 error on failure
+ * @access public
+ */
+ function getAll($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 MDB 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 $query the SQL query
+ * @param array $types array that contains the types of the columns in
+ * the result set
+ * @param array $params array if supplied, prepare/execute will be used
+ * with this array as execute parameters
+ * @param array $param_types array that contains the types of the values
+ * defined in $params
+ * @param boolean $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 boolean $group if TRUE, the values of the returned array
+ * is wrapped in another array. If the same key value (in the first
+ * column) repeats itself, the values will be appended to this array
+ * instead of overwriting the existing values.
+ * @return array associative array with results from the query.
+ * @access public
+ */
+ function getAssoc($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 $stmt query handle from prepare()
+ * @param array $params numeric array containing the
+ * data to insert into the query
+ * @return mixed a result handle or MDB2_OK on success, a MDB2 error on failure
+ * @access public
+ * @see prepare(), execute()
+ */
+ function executeMultiple(&$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 $table name of the table into which a new row was inserted
+ * @param boolean $ondemand when true the seqence is
+ * automatic created, if it
+ * not exists
+ *
+ * @return mixed MDB2 Error Object or id
+ * @access public
+ */
+ function getBeforeID($table, $field, $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 $id value as returned by getBeforeId()
+ * @param string $table name of the table into which a new row was inserted
+ * @return mixed MDB2 Error Object or id
+ * @access public
+ */
+ function getAfterID($id, $table, $field)
+ {
+ $db =& $this->getDBInstance();
+ if (PEAR::isError($db)) {
+ return $db;
+ }
+
+ if ($db->supports('auto_increment') !== true) {
+ return $id;
+ }
+ return $db->lastInsertID($table, $field);
+ }
+
+}
+?> \ No newline at end of file
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-06 05:05:03 +0000