[Sommaire] [Imprimer]

   1  <?php
   2  
   3  /**
   4    V4.94 23 Jan 2007  (c) 2000-2007 John Lim (jlim#natsoft.com.my). 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 'T': return 'TIMESTAMP';
  34          
  35          case 'L': return 'SMALLINT';
  36          case 'I': return 'INTEGER';
  37          case 'I1': return 'SMALLINT';
  38          case 'I2': return 'SMALLINT';
  39          case 'I4': return 'INTEGER';
  40          case 'I8': return 'INTEGER';
  41          
  42          case 'F': return 'DOUBLE PRECISION';
  43          case 'N': return 'DECIMAL';
  44          default:
  45              return $meta;
  46          }
  47      }
  48      
  49  	function NameQuote($name = NULL)
  50      {
  51          if (!is_string($name)) {
  52              return FALSE;
  53          }
  54          
  55          $name = trim($name);
  56          
  57          if ( !is_object($this->connection) ) {
  58              return $name;
  59          }
  60          
  61          $quote = $this->connection->nameQuote;
  62          
  63          // if name is of the form `name`, quote it
  64          if ( preg_match('/^`(.+)`$/', $name, $matches) ) {
  65              return $quote . $matches[1] . $quote;
  66          }
  67          
  68          // if name contains special characters, quote it
  69          if ( !preg_match('/^[' . $this->nameRegex . ']+$/', $name) ) {
  70              return $quote . $name . $quote;
  71          }
  72          
  73          return $quote . $name . $quote;
  74      }
  75  
  76  	function CreateDatabase($dbname, $options=false)
  77      {
  78          $options = $this->_Options($options);
  79          $sql = array();
  80          
  81          $sql[] = "DECLARE EXTERNAL FUNCTION LOWER CSTRING(80) RETURNS CSTRING(80) FREE_IT ENTRY_POINT 'IB_UDF_lower' MODULE_NAME 'ib_udf'";
  82          
  83          return $sql;
  84      }
  85      
  86  	function _DropAutoIncrement($t)
  87      {
  88          if (strpos($t,'.') !== false) {
  89              $tarr = explode('.',$t);
  90              return 'DROP GENERATOR '.$tarr[0].'."gen_'.$tarr[1].'"';
  91          }
  92          return 'DROP GENERATOR "GEN_'.$t;
  93      }
  94      
  95  
  96  	function _CreateSuffix($fname,$ftype,$fnotnull,$fdefault,$fautoinc,$fconstraint,$funsigned)
  97      {
  98          $suffix = '';
  99          
 100          if (strlen($fdefault)) $suffix .= " DEFAULT $fdefault";
 101          if ($fnotnull) $suffix .= ' NOT NULL';
 102          if ($fautoinc) $this->seqField = $fname;
 103          if ($fconstraint) $suffix .= ' '.$fconstraint;
 104          
 105          return $suffix;
 106      }
 107      
 108  /*
 109  CREATE or replace TRIGGER jaddress_insert
 110  before insert on jaddress
 111  for each row
 112  begin
 113  IF ( NEW."seqField" IS NULL OR NEW."seqField" = 0 ) THEN
 114    NEW."seqField" = GEN_ID("GEN_tabname", 1);
 115  end;
 116  */
 117  	function _Triggers($tabname,$tableoptions)
 118      {    
 119          if (!$this->seqField) return array();
 120          
 121          $tab1 = preg_replace( '/"/', '', $tabname );
 122          if ($this->schema) {
 123              $t = strpos($tab1,'.');
 124              if ($t !== false) $tab = substr($tab1,$t+1);
 125              else $tab = $tab1;
 126              $seqField = $this->seqField;
 127              $seqname = $this->schema.'.'.$this->seqPrefix.$tab;
 128              $trigname = $this->schema.'.trig_'.$this->seqPrefix.$tab;
 129          } else {
 130              $seqField = $this->seqField;
 131              $seqname = $this->seqPrefix.$tab1;
 132              $trigname = 'trig_'.$seqname;
 133          }
 134          if (isset($tableoptions['REPLACE']))
 135          { $sql[] = "DROP GENERATOR \"$seqname\"";
 136            $sql[] = "CREATE GENERATOR \"$seqname\"";
 137            $sql[] = "ALTER TRIGGER \"$trigname\" BEFORE INSERT OR UPDATE AS BEGIN IF ( NEW.$seqField IS NULL OR NEW.$seqField = 0 ) THEN NEW.$seqField = GEN_ID(\"$seqname\", 1); END";
 138          }
 139          else
 140          { $sql[] = "CREATE GENERATOR \"$seqname\"";
 141            $sql[] = "CREATE TRIGGER \"$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";
 142          }
 143          
 144          $this->seqField = false;
 145          return $sql;
 146      }
 147  
 148  }
 149  
 150  
 151  ?>