aviat/Query
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Misc cleanup.

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Start of SQL Standard-based driver.
This commit is contained in:
Timothy Warren 2012-03-29 21:20:03 -04:00
parent ab41936835
commit 885d0a0ea5
2 changed files with 260 additions and 174 deletions
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80
drivers/standard_sql.php Normal file
View File

@ -0,0 +1,80 @@
<?php
/**
* Query
*
* Free Query Builder / Database Abstraction Layer
*
* @author Timothy J. Warren
* @copyright Copyright (c) 2012
* @link https://github.com/aviat4ion/Query
* @license http://philsturgeon.co.uk/code/dbad-license
*/
// --------------------------------------------------------------------------
/**
* Dummy class for standardized sql
*/
class Standard_SQL extends DB_SQL {
/**
* Convenience public function to create a new table
*
* @param string $name //Name of the table
* @param array $columns //columns as straight array and/or column => type pairs
* @param array $constraints // column => constraint pairs
* @param array $indexes // column => index pairs
* @return string
*/
public function create_table($names, $columns, array $constraints=array(), array $indexes=array())
{
// @todo Implement
}
// --------------------------------------------------------------------------
/**
* SQL to drop the specified table
*
* @param string $name
* @return string
*/
public function delete_table($name)
{
// @todo Implement
}
// --------------------------------------------------------------------------
/**
* Random ordering keyword
*
* @return string
*/
public function random()
{
// @todo check if standardized
return FALSE;
}
// --------------------------------------------------------------------------
/**
* Limit clause
*
* @param string $sql
* @param int $limit
* @param int $offset
* @return string
*/
public function limit($sql, $limit, $offset=FALSE)
{
if (is_numeric($offset))
{
$sql .= ' OFFSET '.$offset.' ROWS ';
}
$sql .= ' FETCH FIRST '.$limit.' ROWS ONLY ';
}
}
// End of standard_sql.php

32
query_builder.php
View File

@ -21,8 +21,6 @@ class Query_Builder {
// Compiled query component strings
private $select_string,
$from_string,
$insert_string,
$update_string,
$set_string,
$order_string,
$group_string;
@ -78,29 +76,37 @@ class Query_Builder {
$params->type = strtolower($params->type);
$dbtype = ($params->type !== 'postgresql') ? $params->type : 'pgsql';
// Initiate the constructor for the selected database
// Create the dsn for the database to connect to
switch($dbtype)
{
default:
$this->db = new $dbtype("host={$params->host};port={$params->port};dbname={$params->database}", $params->user, $params->pass);
$dsn = "host={$params->host};dbname={$params->database}";
if ( ! empty($params->port))
{
$dsn .= ";port={$params->port}";
}
break;
case "sqlite":
if ( ! empty($params->user) && ! empty($params->pass))
{
$this->db = new $dbtype($params->file, $params->user, $params->pass);
}
else
{
$this->db = new $dbtype($params->file);
}
$dsn = $params->file;
break;
case "firebird":
$this->db = new $dbtype("{$params->host}:{$params->file}", $params->user, $params->pass);
$dsn = "{$params->host}:{$params->file}";
break;
}
// Create the database connection
if ( ! empty($params->user))
{
$this->db = new $dbtype($dsn, $params->user, $params->pass);
}
else
{
$this->db = new $dbtype($dsn);
}
// Make things just slightly shorter
$this->sql =& $this->db->sql;
}