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See Release Notes

  • Bug fixes for general core bugs in 3.11.x will end 14 Nov 2022 (12 months plus 6 months extension).
  • Bug fixes for security issues in 3.11.x will end 13 Nov 2023 (18 months plus 12 months extension).
  • PHP version: minimum PHP 7.3.0 Note: minimum PHP version has increased since Moodle 3.10. PHP 7.4.x is supported too.
<?php
<
/**
< @version v5.20.16 12-Jan-2020
> @version v5.21.0 2021-02-27
@copyright (c) 2000-2013 John Lim (jlim#natsoft.com). All rights reserved. @copyright (c) 2014 Damien Regad, Mark Newnham and the ADOdb community 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. Set tabs to 4 for best viewing. */ // security - hide paths if (!defined('ADODB_DIR')) die(); class ADODB2_db2 extends ADODB_DataDict { var $databaseType = 'db2'; var $seqField = false;
> var $dropCol = 'ALTER TABLE %s DROP COLUMN %s'; > function ActualType($meta) > public $blobAllowsDefaultValue = true; { > public $blobAllowsNotNull = true; switch($meta) { >
case 'C': return 'VARCHAR'; case 'XL': return 'CLOB'; case 'X': return 'VARCHAR(3600)'; case 'C2': return 'VARCHAR'; // up to 32K case 'X2': return 'VARCHAR(3600)'; // up to 32000, but default page size too small 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 'BIGINT'; case 'F': return 'DOUBLE'; case 'N': return 'DECIMAL'; default: return $meta; } } // return string must begin with space function _CreateSuffix($fname,&$ftype,$fnotnull,$fdefault,$fautoinc,$fconstraint,$funsigned) { $suffix = ''; if ($fautoinc) return ' GENERATED ALWAYS AS IDENTITY'; # as identity start with if (strlen($fdefault)) $suffix .= " DEFAULT $fdefault"; if ($fnotnull) $suffix .= ' NOT NULL'; if ($fconstraint) $suffix .= ' '.$fconstraint; return $suffix; }
< function AlterColumnSQL($tabname, $flds, $tableflds='',$tableoptions='')
> function alterColumnSQL($tabname, $flds, $tableflds='',$tableoptions='') > { > $tabname = $this->TableName ($tabname); > $sql = array(); > list($lines,$pkey,$idxs) = $this->_GenFields($flds); > // genfields can return FALSE at times > if ($lines == null) $lines = array(); > $alter = 'ALTER TABLE ' . $tabname . $this->alterCol . ' '; > > $dataTypeWords = array('SET','DATA','TYPE'); > > foreach($lines as $v)
{
< if ($this->debug) ADOConnection::outp("AlterColumnSQL not supported"); < return array();
> /* > * We must now post-process the line to insert the 'SET DATA TYPE' > * text into the alter statement > */ > $e = explode(' ',$v); > > array_splice($e,1,0,$dataTypeWords); > > $v = implode(' ',$e); > > $sql[] = $alter . $v; > } > if (is_array($idxs)) > { > foreach($idxs as $idx => $idxdef) { > $sql_idxs = $this->CreateIndexSql($idx, $tabname, $idxdef['cols'], $idxdef['opts']); > $sql = array_merge($sql, $sql_idxs);
}
> } > return $sql; function DropColumnSQL($tabname, $flds, $tableflds='',$tableoptions='') > } { > if ($this->debug) ADOConnection::outp("DropColumnSQL not supported"); > return array(); > } > function dropColumnSql($tabname, $flds, $tableflds='',$tableoptions='') > { > function ChangeTableSQL($tablename, $flds, $tableoptions = false) > { > $tabname = $this->connection->getMetaCasedValue($tabname); > $flds = $this->connection->getMetaCasedValue($flds);
< function DropColumnSQL($tabname, $flds, $tableflds='',$tableoptions='')
> if (ADODB_ASSOC_CASE == ADODB_ASSOC_CASE_NATIVE )
< if ($this->debug) ADOConnection::outp("DropColumnSQL not supported"); < return array();
> /* > * METACASE_NATIVE > */ > $tabname = $this->connection->nameQuote . $tabname . $this->connection->nameQuote; > $flds = $this->connection->nameQuote . $flds . $this->connection->nameQuote; > } > $sql = sprintf($this->dropCol,$tabname,$flds); > return (array)$sql; >
< function ChangeTableSQL($tablename, $flds, $tableoptions = false)
> function changeTableSQL($tablename, $flds, $tableoptions = false, $dropOldFields=false)
*/ $validTypes = array("CHAR","VARC"); $invalidTypes = array("BIGI","BLOB","CLOB","DATE", "DECI","DOUB", "INTE", "REAL","SMAL", "TIME"); // check table exists
< $cols = $this->MetaColumns($tablename);
> > > $cols = $this->metaColumns($tablename);
if ( empty($cols)) {
< return $this->CreateTableSQL($tablename, $flds, $tableoptions);
> return $this->createTableSQL($tablename, $flds, $tableoptions);
} // already exists, alter table instead list($lines,$pkey) = $this->_GenFields($flds);
< $alter = 'ALTER TABLE ' . $this->TableName($tablename);
> $alter = 'ALTER TABLE ' . $this->tableName($tablename);
$sql = array(); foreach ( $lines as $id => $v ) {
> /* if ( isset($cols[$id]) && is_object($cols[$id]) ) { > * If the metaCasing was NATIVE the col returned with nameQuotes /** > * around the field. We need to remove this for the metaColumn If the first field of $v is the fieldname, and > * match the second is the field type/size, we assume its an > */ attempt to modify the column size, so check that it is allowed > $id = str_replace($this->connection->nameQuote,'',$id);
$v can have an indeterminate number of blanks between the fields, so account for that too */ $vargs = explode(' ' , $v); // assume that $vargs[0] is the field name. $i=0; // Find the next non-blank value; for ($i=1;$i<sizeof($vargs);$i++) if ($vargs[$i] != '') break; // if $vargs[$i] is one of the following, we are trying to change the // size of the field, if not allowed, simply ignore the request. if (in_array(substr($vargs[$i],0,4),$invalidTypes)) continue; // insert the appropriate DB2 syntax if (in_array(substr($vargs[$i],0,4),$validTypes)) { array_splice($vargs,$i,0,array('SET','DATA','TYPE')); } // Now Look for the NOT NULL statement as this is not allowed in // the ALTER table statement. If it is in there, remove it if (in_array('NOT',$vargs) && in_array('NULL',$vargs)) { for ($i=1;$i<sizeof($vargs);$i++) if ($vargs[$i] == 'NOT') break; array_splice($vargs,$i,2,''); } $v = implode(' ',$vargs); $sql[] = $alter . $this->alterCol . ' ' . $v; } else { $sql[] = $alter . $this->addCol . ' ' . $v; } } return $sql; } }