datadict/datadict-firebird.inc.php

<?php

class ADODB2_firebird extends ADODB_DataDict {
        
        var $databaseType = 'firebird';
        var $seqField = false;
        var $seqPrefix = 'gen_';
        var $blobSize = 40000;  
        
        function ActualType($meta)
        {
                switch($meta) {
                case 'C': return 'VARCHAR';
                case 'XL': return 'VARCHAR(32000)'; 
                case 'X': return 'VARCHAR(4000)'; 
                
                case 'C2': return 'VARCHAR'; // up to 32K
                case 'X2': return 'VARCHAR(4000)';
                
                case 'B': return 'BLOB';
                        
                case 'D': return 'DATE';
                case 'TS':
                case 'T': return 'TIMESTAMP';
                
                case 'L': return 'SMALLINT';
                case 'I': return 'INTEGER';
                case 'I1': return 'SMALLINT';
                case 'I2': return 'SMALLINT';
                case 'I4': return 'INTEGER';
                case 'I8': return 'INTEGER';
                
                case 'F': return 'DOUBLE PRECISION';
                case 'N': return 'DECIMAL';
                default:
                        return $meta;
                }
        }
        
        function NameQuote($name = NULL)
        {
                if (!is_string($name)) {
                        return FALSE;
                }
                
                $name = trim($name);
                
                if ( !is_object($this->connection) ) {
                        return $name;
                }
                
                $quote = $this->connection->nameQuote;
                
                // if name is of the form `name`, quote it
                if ( preg_match('/^`(.+)`$/', $name, $matches) ) {
                        return $quote . $matches[1] . $quote;
                }
                
                // if name contains special characters, quote it
                if ( !preg_match('/^[' . $this->nameRegex . ']+$/', $name) ) {
                        return $quote . $name . $quote;
                }
                
                return $quote . $name . $quote;
        }

        function CreateDatabase($dbname, $options=false)
        {
                $options = $this->_Options($options);
                $sql = array();
                
                $sql[] = "DECLARE EXTERNAL FUNCTION LOWER CSTRING(80) RETURNS CSTRING(80) FREE_IT ENTRY_POINT 'IB_UDF_lower' MODULE_NAME 'ib_udf'";
                
                return $sql;
        }
        
        function _DropAutoIncrement($t)
        {
                if (strpos($t,'.') !== false) {
                        $tarr = explode('.',$t);
                        return 'DROP GENERATOR '.$tarr[0].'."gen_'.$tarr[1].'"';
                }
                return 'DROP GENERATOR "GEN_'.$t;
        }
        

        function _CreateSuffix($fname,&$ftype,$fnotnull,$fdefault,$fautoinc,$fconstraint,$funsigned)
        {
                $suffix = '';
                
                if (strlen($fdefault)) $suffix .= " DEFAULT $fdefault";
                if ($fnotnull) $suffix .= ' NOT NULL';
                if ($fautoinc) $this->seqField = $fname;
                if ($fconstraint) $suffix .= ' '.$fconstraint;
                
                return $suffix;
        }
        
/*
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();
                
                $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";
                }
                
                $this->seqField = false;
                return $sql;
        }

}


?>