0,0 → 1,151 |
<?php |
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/** |
V4.80 8 Mar 2006 (c) 2000-2006 John Lim (jlim@natsoft.com.my). 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. |
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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'; |
var $seqField = false; |
var $seqPrefix = 'gen_'; |
var $blobSize = 40000; |
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function ActualType($meta) |
{ |
switch($meta) { |
case 'C': return 'VARCHAR'; |
case 'XL': return 'VARCHAR(32000)'; |
case 'X': return 'VARCHAR(4000)'; |
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case 'C2': return 'VARCHAR'; // up to 32K |
case 'X2': return 'VARCHAR(4000)'; |
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case 'B': return 'BLOB'; |
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case 'D': return 'DATE'; |
case 'T': return 'TIMESTAMP'; |
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case 'L': return 'SMALLINT'; |
case 'I': return 'INTEGER'; |
case 'I1': return 'SMALLINT'; |
case 'I2': return 'SMALLINT'; |
case 'I4': return 'INTEGER'; |
case 'I8': return 'INTEGER'; |
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case 'F': return 'DOUBLE PRECISION'; |
case 'N': return 'DECIMAL'; |
default: |
return $meta; |
} |
} |
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function NameQuote($name = NULL) |
{ |
if (!is_string($name)) { |
return FALSE; |
} |
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$name = trim($name); |
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if ( !is_object($this->connection) ) { |
return $name; |
} |
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$quote = $this->connection->nameQuote; |
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// if name is of the form `name`, quote it |
if ( preg_match('/^`(.+)`$/', $name, $matches) ) { |
return $quote . $matches[1] . $quote; |
} |
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// if name contains special characters, quote it |
if ( !preg_match('/^[' . $this->nameRegex . ']+$/', $name) ) { |
return $quote . $name . $quote; |
} |
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return $quote . $name . $quote; |
} |
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function CreateDatabase($dbname, $options=false) |
{ |
$options = $this->_Options($options); |
$sql = array(); |
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$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 $sql; |
} |
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function _DropAutoIncrement($t) |
{ |
if (strpos($t,'.') !== false) { |
$tarr = explode('.',$t); |
return 'DROP GENERATOR '.$tarr[0].'."gen_'.$tarr[1].'"'; |
} |
return 'DROP GENERATOR "GEN_'.$t; |
} |
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function _CreateSuffix($fname,$ftype,$fnotnull,$fdefault,$fautoinc,$fconstraint,$funsigned) |
{ |
$suffix = ''; |
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if (strlen($fdefault)) $suffix .= " DEFAULT $fdefault"; |
if ($fnotnull) $suffix .= ' NOT NULL'; |
if ($fautoinc) $this->seqField = $fname; |
if ($fconstraint) $suffix .= ' '.$fconstraint; |
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return $suffix; |
} |
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/* |
CREATE or replace TRIGGER jaddress_insert |
before insert on jaddress |
for each row |
begin |
IF ( NEW."seqField" IS NULL OR NEW."seqField" = 0 ) THEN |
NEW."seqField" = GEN_ID("GEN_tabname", 1); |
end; |
*/ |
function _Triggers($tabname,$tableoptions) |
{ |
if (!$this->seqField) return array(); |
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$tab1 = preg_replace( '/"/', '', $tabname ); |
if ($this->schema) { |
$t = strpos($tab1,'.'); |
if ($t !== false) $tab = substr($tab1,$t+1); |
else $tab = $tab1; |
$seqField = $this->seqField; |
$seqname = $this->schema.'.'.$this->seqPrefix.$tab; |
$trigname = $this->schema.'.trig_'.$this->seqPrefix.$tab; |
} else { |
$seqField = $this->seqField; |
$seqname = $this->seqPrefix.$tab1; |
$trigname = 'trig_'.$seqname; |
} |
if (isset($tableoptions['REPLACE'])) |
{ $sql[] = "DROP GENERATOR \"$seqname\""; |
$sql[] = "CREATE GENERATOR \"$seqname\""; |
$sql[] = "ALTER TRIGGER \"$trigname\" BEFORE INSERT OR UPDATE AS BEGIN IF ( NEW.$seqField IS NULL OR NEW.$seqField = 0 ) THEN NEW.$seqField = GEN_ID(\"$seqname\", 1); END"; |
} |
else |
{ $sql[] = "CREATE GENERATOR \"$seqname\""; |
$sql[] = "CREATE TRIGGER \"$trigname\" FOR $tabname BEFORE INSERT OR UPDATE AS BEGIN IF ( NEW.$seqField IS NULL OR NEW.$seqField = 0 ) THEN NEW.$seqField = GEN_ID(\"$seqname\", 1); END"; |
} |
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$this->seqField = false; |
return $sql; |
} |
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} |
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?> |