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<?php

/**********************************************************************

* Author: Justin Vincent (jv@jvmultimedia.com)

* Web...: http://twitter.com/justinvincent

* Name..: ezSQL_sqlite

* Desc..: SQLite component (part of ezSQL databse abstraction library)

*

*/

/**********************************************************************

* ezSQL error strings - SQLite

*/

global $ezsql_sqlite_str;

$ezsql_sqlite_str = array

(

1 => 'Require $dbpath and $dbname to open an SQLite database'

);

/**********************************************************************

* ezSQL Database specific class - SQLite

*/

if ( ! function_exists ('sqlite_open') ) die('<b>Fatal Error:</b> ezSQL_sqlite requires SQLite Lib to be compiled and or linked in to the PHP engine');

if ( ! class_exists ('ezSQLcore') ) die('<b>Fatal Error:</b> ezSQL_sqlite requires ezSQLcore (ez_sql_core.php) to be included/loaded before it can be used');

class ezSQL_sqlite extends ezSQLcore

{

var $rows_affected = false;

/**********************************************************************

* Constructor - allow the user to perform a quick connect at the

* same time as initialising the ezSQL_sqlite class

*/

function ezSQL_sqlite($dbpath='', $dbname='')

{

// Turn on track errors

ini_set('track_errors',1);

if ( $dbpath && $dbname )

{

$this->connect($dbpath, $dbname);

}

}

/**********************************************************************

* Try to connect to SQLite database server

*/

function connect($dbpath='', $dbname='')

{

global $ezsql_sqlite_str; $return_val = false;

// Must have a user and a password

if ( ! $dbpath || ! $dbname )

{

$this->register_error($ezsql_sqlite_str[1].' in '.__FILE__.' on line '.__LINE__);

$this->show_errors ? trigger_error($ezsql_sqlite_str[1],E_USER_WARNING) : null;

}

// Try to establish the server database handle

else if ( ! $this->dbh = @sqlite_open($dbpath.$dbname) )

{

$this->register_error($php_errormsg);

$this->show_errors ? trigger_error($php_errormsg,E_USER_WARNING) : null;

}

else

{

$return_val = true;

$this->conn_queries = 0;

}

return $return_val;

}

/**********************************************************************

* In the case of SQLite quick_connect is not really needed

* because std. connect already does what quick connect does -

* but for the sake of consistency it has been included

*/

function quick_connect($dbpath='', $dbname='')

{

return $this->connect($dbpath, $dbname);

}

/**********************************************************************

* No real equivalent of mySQL select in SQLite

* once again, function included for the sake of consistency

*/

function select($dbpath='', $dbname='')

{

return $this->connect($dbpath, $dbname);

}

/**********************************************************************

* Format a SQLite string correctly for safe SQLite insert

* (no mater if magic quotes are on or not)

*/

function escape($str)

{

return sqlite_escape_string(stripslashes(preg_replace("/[\r\n]/",'',$str)));

}

/**********************************************************************

* Return SQLite specific system date syntax

* i.e. Oracle: SYSDATE Mysql: NOW()

*/

function sysdate()

{

return 'now';

}

/**********************************************************************

* Perform SQLite query and try to detirmin result value

*/

// ==================================================================

// Basic Query - see docs for more detail

function query($query)

{

// For reg expressions

$query = str_replace("/[\n\r]/",'',trim($query));

// initialise return

$return_val = 0;

// Flush cached values..

$this->flush();

// Log how the function was called

$this->func_call = "\$db->query(\"$query\")";

// Keep track of the last query for debug..

$this->last_query = $query;

// Perform the query via std mysql_query function..

$this->result = @sqlite_query($this->dbh,$query);

$this->count(true, true);

// If there is an error then take note of it..

if (@sqlite_last_error($this->dbh))

{

$err_str = sqlite_error_string (sqlite_last_error($this->dbh));

$this->register_error($err_str);

$this->show_errors ? trigger_error($err_str,E_USER_WARNING) : null;

return false;

}

// Query was an insert, delete, update, replace

if ( preg_match("/^(insert|delete|update|replace)\s+/i",$query) )

{

$this->rows_affected = @sqlite_changes($this->dbh);

// Take note of the insert_id

if ( preg_match("/^(insert|replace)\s+/i",$query) )

{

$this->insert_id = @sqlite_last_insert_rowid($this->dbh);

}

// Return number fo rows affected

$return_val = $this->rows_affected;

}

// Query was an select

else

{

// Take note of column info

$i=0;

while ($i < @sqlite_num_fields($this->result))

{

$this->col_info[$i]->name = sqlite_field_name ( $this->result, $i);

$this->col_info[$i]->type = null;

$this->col_info[$i]->max_length = null;

$i++;

}

// Store Query Results

$num_rows=0;

while ($row = @sqlite_fetch_array($this->result,SQLITE_ASSOC) )

{

// Store relults as an objects within main array

$obj= (object) $row; //convert to object

$this->last_result[$num_rows] = $obj;

$num_rows++;

}

// Log number of rows the query returned

$this->num_rows = $num_rows;

// Return number of rows selected

$return_val = $this->num_rows;

}

// If debug ALL queries

$this->trace||$this->debug_all ? $this->debug() : null ;

return $return_val;

}

}