library/adodb/datadict/datadict-firebird.inc.php

   1 <?php
   2
   3 /**
   4   V5.14 8 Sept 2011  (c) 2000-2011 John Lim (jlim#natsoft.com). All rights reserved.
   5   Released under both BSD license and Lesser GPL library license.
   6   Whenever there is any discrepancy between the two licenses,
   7   the BSD license will take precedence.
   8
   9   Set tabs to 4 for best viewing.
  10
  11 */
  12
  13 class ADODB2_firebird extends ADODB_DataDict {
  14
  15         var $databaseType = 'firebird';
  16         var $seqField = false;
  17         var $seqPrefix = 'gen_';
  18         var $blobSize = 40000;
  19
  20         function ActualType($meta)
  21         {
  22                 switch($meta) {
  23                 case 'C': return 'VARCHAR';
  24                 case 'XL': return 'VARCHAR(32000)';
  25                 case 'X': return 'VARCHAR(4000)';
  26
  27                 case 'C2': return 'VARCHAR'; // up to 32K
  28                 case 'X2': return 'VARCHAR(4000)';
  29
  30                 case 'B': return 'BLOB';
  31
  32                 case 'D': return 'DATE';
  33                 case 'TS':
  34                 case 'T': return 'TIMESTAMP';
  35
  36                 case 'L': return 'SMALLINT';
  37                 case 'I': return 'INTEGER';
  38                 case 'I1': return 'SMALLINT';
  39                 case 'I2': return 'SMALLINT';
  40                 case 'I4': return 'INTEGER';
  41                 case 'I8': return 'INTEGER';
  42
  43                 case 'F': return 'DOUBLE PRECISION';
  44                 case 'N': return 'DECIMAL';
  45                 default:
  46                         return $meta;
  47                 }
  48         }
  49
  50         function NameQuote($name = NULL)
  51         {
  52                 if (!is_string($name)) {
  53                         return FALSE;
  54                 }
  55
  56                 $name = trim($name);
  57
  58                 if ( !is_object($this->connection) ) {
  59                         return $name;
  60                 }
  61
  62                 $quote = $this->connection->nameQuote;
  63
  64                 // if name is of the form `name`, quote it
  65                 if ( preg_match('/^`(.+)`$/', $name, $matches) ) {
  66                         return $quote . $matches[1] . $quote;
  67                 }
  68
  69                 // if name contains special characters, quote it
  70                 if ( !preg_match('/^[' . $this->nameRegex . ']+$/', $name) ) {
  71                         return $quote . $name . $quote;
  72                 }
  73
  74                 return $quote . $name . $quote;
  75         }
  76
  77         function CreateDatabase($dbname, $options=false)
  78         {
  79                 $options = $this->_Options($options);
  80                 $sql = array();
  81
  82                 $sql[] = "DECLARE EXTERNAL FUNCTION LOWER CSTRING(80) RETURNS CSTRING(80) FREE_IT ENTRY_POINT 'IB_UDF_lower' MODULE_NAME 'ib_udf'";
  83
  84                 return $sql;
  85         }
  86
  87         function _DropAutoIncrement($t)
  88         {
  89                 if (strpos($t,'.') !== false) {
  90                         $tarr = explode('.',$t);
  91                         return 'DROP GENERATOR '.$tarr[0].'."gen_'.$tarr[1].'"';
  92                 }
  93                 return 'DROP GENERATOR "GEN_'.$t;
  94         }
  95
  96
  97         function _CreateSuffix($fname,&$ftype,$fnotnull,$fdefault,$fautoinc,$fconstraint,$funsigned)
  98         {
  99                 $suffix = '';
 100
 101                 if (strlen($fdefault)) $suffix .= " DEFAULT $fdefault";
 102                 if ($fnotnull) $suffix .= ' NOT NULL';
 103                 if ($fautoinc) $this->seqField = $fname;
 104                 if ($fconstraint) $suffix .= ' '.$fconstraint;
 105
 106                 return $suffix;
 107         }
 108
 109 /*
 110 CREATE or replace TRIGGER jaddress_insert
 111 before insert on jaddress
 112 for each row
 113 begin
 114 IF ( NEW."seqField" IS NULL OR NEW."seqField" = 0 ) THEN
 115   NEW."seqField" = GEN_ID("GEN_tabname", 1);
 116 end;
 117 */
 118         function _Triggers($tabname,$tableoptions)
 119         {
 120                 if (!$this->seqField) return array();
 121
 122                 $tab1 = preg_replace( '/"/', '', $tabname );
 123                 if ($this->schema) {
 124                         $t = strpos($tab1,'.');
 125                         if ($t !== false) $tab = substr($tab1,$t+1);
 126                         else $tab = $tab1;
 127                         $seqField = $this->seqField;
 128                         $seqname = $this->schema.'.'.$this->seqPrefix.$tab;
 129                         $trigname = $this->schema.'.trig_'.$this->seqPrefix.$tab;
 130                 } else {
 131                         $seqField = $this->seqField;
 132                         $seqname = $this->seqPrefix.$tab1;
 133                         $trigname = 'trig_'.$seqname;
 134                 }
 135                 if (isset($tableoptions['REPLACE']))
 136                 { $sql[] = "DROP GENERATOR \"$seqname\"";
 137                   $sql[] = "CREATE GENERATOR \"$seqname\"";
 138                   $sql[] = "ALTER TRIGGER \"$trigname\" BEFORE INSERT OR UPDATE AS BEGIN IF ( NEW.$seqField IS NULL OR NEW.$seqField = 0 ) THEN NEW.$seqField = GEN_ID(\"$seqname\", 1); END";
 139                 }
 140                 else
 141                 { $sql[] = "CREATE GENERATOR \"$seqname\"";
 142                   $sql[] = "CREATE TRIGGER \"$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";
 143                 }
 144
 145                 $this->seqField = false;
 146                 return $sql;
 147         }
 148
 149 }
 150
 151
 152 ?>