151 lines
3.7 KiB
PHP
151 lines
3.7 KiB
PHP
<?php
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/**
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V4.80 8 Mar 2006 (c) 2000-2006 John Lim (jlim@natsoft.com.my). All rights reserved.
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Released under both BSD license and Lesser GPL library license.
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Whenever there is any discrepancy between the two licenses,
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the BSD license will take precedence.
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Set tabs to 4 for best viewing.
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*/
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class ADODB2_firebird extends ADODB_DataDict {
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var $databaseType = 'firebird';
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var $seqField = false;
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var $seqPrefix = 'gen_';
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var $blobSize = 40000;
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function ActualType($meta)
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{
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switch($meta) {
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case 'C': return 'VARCHAR';
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case 'XL': return 'VARCHAR(32000)';
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case 'X': return 'VARCHAR(4000)';
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case 'C2': return 'VARCHAR'; // up to 32K
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case 'X2': return 'VARCHAR(4000)';
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case 'B': return 'BLOB';
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case 'D': return 'DATE';
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case 'T': return 'TIMESTAMP';
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case 'L': return 'SMALLINT';
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case 'I': return 'INTEGER';
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case 'I1': return 'SMALLINT';
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case 'I2': return 'SMALLINT';
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case 'I4': return 'INTEGER';
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case 'I8': return 'INTEGER';
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case 'F': return 'DOUBLE PRECISION';
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case 'N': return 'DECIMAL';
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default:
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return $meta;
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}
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}
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function NameQuote($name = NULL)
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{
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if (!is_string($name)) {
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return FALSE;
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}
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$name = trim($name);
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if ( !is_object($this->connection) ) {
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return $name;
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}
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$quote = $this->connection->nameQuote;
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// if name is of the form `name`, quote it
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if ( preg_match('/^`(.+)`$/', $name, $matches) ) {
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return $quote . $matches[1] . $quote;
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}
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// if name contains special characters, quote it
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if ( !preg_match('/^[' . $this->nameRegex . ']+$/', $name) ) {
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return $quote . $name . $quote;
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}
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return $quote . $name . $quote;
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}
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function CreateDatabase($dbname, $options=false)
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{
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$options = $this->_Options($options);
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$sql = array();
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$sql[] = "DECLARE EXTERNAL FUNCTION LOWER CSTRING(80) RETURNS CSTRING(80) FREE_IT ENTRY_POINT 'IB_UDF_lower' MODULE_NAME 'ib_udf'";
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return $sql;
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}
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function _DropAutoIncrement($t)
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{
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if (strpos($t,'.') !== false) {
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$tarr = explode('.',$t);
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return 'DROP GENERATOR '.$tarr[0].'."gen_'.$tarr[1].'"';
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}
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return 'DROP GENERATOR "GEN_'.$t;
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}
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function _CreateSuffix($fname,$ftype,$fnotnull,$fdefault,$fautoinc,$fconstraint,$funsigned)
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{
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$suffix = '';
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if (strlen($fdefault)) $suffix .= " DEFAULT $fdefault";
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if ($fnotnull) $suffix .= ' NOT NULL';
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if ($fautoinc) $this->seqField = $fname;
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if ($fconstraint) $suffix .= ' '.$fconstraint;
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return $suffix;
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}
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/*
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CREATE or replace TRIGGER jaddress_insert
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before insert on jaddress
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for each row
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begin
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IF ( NEW."seqField" IS NULL OR NEW."seqField" = 0 ) THEN
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NEW."seqField" = GEN_ID("GEN_tabname", 1);
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end;
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*/
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function _Triggers($tabname,$tableoptions)
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{
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if (!$this->seqField) return array();
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$tab1 = preg_replace( '/"/', '', $tabname );
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if ($this->schema) {
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$t = strpos($tab1,'.');
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if ($t !== false) $tab = substr($tab1,$t+1);
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else $tab = $tab1;
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$seqField = $this->seqField;
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$seqname = $this->schema.'.'.$this->seqPrefix.$tab;
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$trigname = $this->schema.'.trig_'.$this->seqPrefix.$tab;
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} else {
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$seqField = $this->seqField;
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$seqname = $this->seqPrefix.$tab1;
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$trigname = 'trig_'.$seqname;
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}
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if (isset($tableoptions['REPLACE']))
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{ $sql[] = "DROP GENERATOR \"$seqname\"";
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$sql[] = "CREATE GENERATOR \"$seqname\"";
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$sql[] = "ALTER TRIGGER \"$trigname\" BEFORE INSERT OR UPDATE AS BEGIN IF ( NEW.$seqField IS NULL OR NEW.$seqField = 0 ) THEN NEW.$seqField = GEN_ID(\"$seqname\", 1); END";
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}
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else
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{ $sql[] = "CREATE GENERATOR \"$seqname\"";
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$sql[] = "CREATE TRIGGER \"$trigname\" FOR $tabname BEFORE INSERT OR UPDATE AS BEGIN IF ( NEW.$seqField IS NULL OR NEW.$seqField = 0 ) THEN NEW.$seqField = GEN_ID(\"$seqname\", 1); END";
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}
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$this->seqField = false;
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return $sql;
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}
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}
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