datadict-informix.inc.php

来自「一个bug追踪工具的PHP编写的源代码」· PHP 代码 · 共 82 行

<?php

/**
  V4.60 24 Jan 2005  (c) 2000-2005 John Lim ([e-mail]). All rights reserved.
  Released under both BSD license and Lesser GPL library license.
  Whenever there is any discrepancy between the two licenses,
  the BSD license will take precedence.

  Set tabs to 4 for best viewing.

*/

// security - hide paths
if (!defined('ADODB_DIR')) die();

class ADODB2_informix extends ADODB_DataDict {

	var $databaseType = 'informix';
	var $seqField = false;


	function ActualType($meta)
	{
		switch($meta) {
		case 'C': return 'VARCHAR';// 255
		case 'XS':
		case 'XL':
		case 'X': return 'TEXT';

		case 'C2': return 'NVARCHAR';
		case 'X2': return 'TEXT';

		case 'B': return 'BLOB';

		case 'D': return 'DATE';
		case 'T': return 'DATETIME';

		case 'L': return 'SMALLINT';
		case 'I': return 'INTEGER';
		case 'I1': return 'SMALLINT';
		case 'I2': return 'SMALLINT';
		case 'I4': return 'INTEGER';
		case 'I8': return 'DECIMAL(20)';

		case 'F': return 'FLOAT';
		case 'N': return 'DECIMAL';
		default:
			return $meta;
		}
	}

	function AlterColumnSQL($tabname, $flds)
	{
		if ($this->debug) ADOConnection::outp("AlterColumnSQL not supported");
		return array();
	}


	function DropColumnSQL($tabname, $flds)
	{
		if ($this->debug) ADOConnection::outp("DropColumnSQL not supported");
		return array();
	}

	// return string must begin with space
	function _CreateSuffix($fname, &$ftype, $fnotnull,$fdefault,$fautoinc,$fconstraint)
	{
		if ($fautoinc) {
			$ftype = 'SERIAL';
			return '';
		}
		$suffix = '';
		if (strlen($fdefault)) $suffix .= " DEFAULT $fdefault";
		if ($fnotnull) $suffix .= ' NOT NULL';
		if ($fconstraint) $suffix .= ' '.$fconstraint;
		return $suffix;
	}

}

?>