Add new directory structure. Tags will contain current and past releases, and stable will contain any bug fixes to the current stable release so users won't have to get the potentially broken trunk build to fix a screwup in stable.

Trunk updated to 0.9

git-svn-id: http://kusabax.cultnet.net/svn/repo/stable@176 73d99b7e-4f53-4972-b7b7-2ecd3c4d89ee
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Sazpaimon committed 2009-05-27 06:37:50 +00:00
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<?php
/**
* ADOdb Lite Meta Module for Postgres7
*
* Portions of the Meta Coding came from ADOdb
*/
/*
(c) 2000-2005 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. See License.txt.
*/
eval('class postgres7_meta_EXTENDER extends '. $last_module . '_ADOConnection { }');
class postgres7_meta_ADOConnection extends postgres7_meta_EXTENDER
{
var $metaDatabasesSQL = "select datname from pg_database where datname not in ('template0','template1') order by 1";
var $metaTablesSQL = "select tablename,'T' from pg_tables where tablename not like 'pg\_%'
and tablename not in ('sql_features', 'sql_implementation_info', 'sql_languages',
'sql_packages', 'sql_sizing', 'sql_sizing_profiles')
union
select viewname,'V' from pg_views where viewname not like 'pg\_%'";
var $metaColumnsSQL = "SELECT a.attname,t.typname,a.attlen,a.atttypmod,a.attnotnull,a.atthasdef,a.attnum
FROM pg_class c, pg_attribute a,pg_type t
WHERE relkind in ('r','v') AND (c.relname='%s' or c.relname = lower('%s')) and a.attname not like '....%%'
AND a.attnum > 0 AND a.atttypid = t.oid AND a.attrelid = c.oid ORDER BY a.attnum";
// used when schema defined
var $metaColumnsSQL1 = "SELECT a.attname, t.typname, a.attlen, a.atttypmod, a.attnotnull, a.atthasdef, a.attnum
FROM pg_class c, pg_attribute a, pg_type t, pg_namespace n
WHERE relkind in ('r','v') AND (c.relname='%s' or c.relname = lower('%s'))
and c.relnamespace=n.oid and n.nspname='%s'
and a.attname not like '....%%' AND a.attnum > 0
AND a.atttypid = t.oid AND a.attrelid = c.oid ORDER BY a.attnum";
// get primary key etc -- from Freek Dijkstra
var $metaKeySQL = "SELECT ic.relname AS index_name, a.attname AS column_name,i.indisunique AS unique_key, i.indisprimary AS primary_key
FROM pg_class bc, pg_class ic, pg_index i, pg_attribute a WHERE bc.oid = i.indrelid AND ic.oid = i.indexrelid AND (i.indkey[0] = a.attnum OR i.indkey[1] = a.attnum OR i.indkey[2] = a.attnum OR i.indkey[3] = a.attnum OR i.indkey[4] = a.attnum OR i.indkey[5] = a.attnum OR i.indkey[6] = a.attnum OR i.indkey[7] = a.attnum) AND a.attrelid = bc.oid AND bc.relname = '%s'";
var $metaDefaultsSQL = "SELECT d.adnum as num, d.adsrc as def from pg_attrdef d, pg_class c where d.adrelid=c.oid and c.relname='%s' order by d.adnum";
function MetaError($err=false)
{
include_once(ADODB_DIR."/adodb-error.inc.php");
if ($err === false)
$err = $this->ErrorNo();
return adodb_error($this->dataProvider,$this->databaseType,$err);
}
function MetaErrorMsg($errno)
{
include_once(ADODB_DIR."/adodb-error.inc.php");
return adodb_errormsg($errno);
}
/**
* @returns an array with the primary key columns in it.
*/
function MetaPrimaryKeys($table, $owner=false)
{
// owner not used in base class - see oci8
$p = array();
$objs =& $this->MetaColumns($table);
if ($objs) {
foreach($objs as $v) {
if (!empty($v->primary_key))
$p[] = $v->name;
}
}
if (sizeof($p)) return $p;
if (function_exists('ADODB_VIEW_PRIMARYKEYS'))
return ADODB_VIEW_PRIMARYKEYS($this->databaseType, $this->database, $table, $owner);
return false;
}
/**
* @returns assoc array where keys are tables, and values are foreign keys
*/
function MetaForeignKeys($table, $owner=false, $upper=false)
{
$sql = 'SELECT t.tgargs as args
FROM
pg_trigger t,pg_class c,pg_proc p
WHERE
t.tgenabled AND
t.tgrelid = c.oid AND
t.tgfoid = p.oid AND
p.proname = \'RI_FKey_check_ins\' AND
c.relname = \''.strtolower($table).'\'
ORDER BY
t.tgrelid';
$rs =& $this->Execute($sql);
if (!$rs || $rs->EOF) return false;
$arr =& $rs->GetArray();
$a = array();
foreach($arr as $v) {
$data = explode(chr(0), $v['args']);
$size = count($data)-1; //-1 because the last node is empty
for($i = 4; $i < $size; $i++) {
if ($upper)
$a[strtoupper($data[2])][] = strtoupper($data[$i].'='.$data[++$i]);
else
$a[$data[2]][] = $data[$i].'='.$data[++$i];
}
}
return $a;
}
// not the fastest implementation - quick and dirty - jlim
// for best performance, use the actual $rs->MetaType().
function MetaType($t,$len=-1,$fieldobj=false)
{
if (empty($this->_metars)) {
$rsclass = $this->last_module_name . "_ResultSet";
$this->_metars =& new $rsclass(false,$this->fetchMode);
}
return $this->_metars->MetaType($t,$len,$fieldobj);
}
/**
* return the databases that the driver can connect to.
* Some databases will return an empty array.
*
* @return an array of database names.
*/
function MetaDatabases()
{
global $ADODB_FETCH_MODE;
if ($this->metaDatabasesSQL) {
$save = $ADODB_FETCH_MODE;
$ADODB_FETCH_MODE = ADODB_FETCH_NUM;
if ($this->fetchMode !== false) $savem = $this->SetFetchMode(false);
$arr = $this->GetCol($this->metaDatabasesSQL);
if (isset($savem)) $this->SetFetchMode($savem);
$ADODB_FETCH_MODE = $save;
return $arr;
}
return false;
}
/**
* @param ttype can either be 'VIEW' or 'TABLE' or false.
* If false, both views and tables are returned.
* "VIEW" returns only views
* "TABLE" returns only tables
* @param showSchema returns the schema/user with the table name, eg. USER.TABLE
* @param mask is the input mask - only supported by oci8 and postgresql
*
* @return array of tables for current database.
*/
function &MetaTables($ttype=false,$showSchema=false,$mask=false)
{
$info = $this->ServerInfo();
if ($info['version'] >= 7.3) {
$this->metaTablesSQL = "select tablename,'T' from pg_tables where tablename not like 'pg\_%'
and schemaname not in ( 'pg_catalog','information_schema')
union
select viewname,'V' from pg_views where viewname not like 'pg\_%' and schemaname not in ( 'pg_catalog','information_schema') ";
}
if ($mask) {
$save = $this->metaTablesSQL;
$mask = $this->qstr(strtolower($mask));
if ($info['version']>=7.3)
$this->metaTablesSQL = "
select tablename,'T' from pg_tables where tablename like $mask and schemaname not in ( 'pg_catalog','information_schema')
union
select viewname,'V' from pg_views where viewname like $mask and schemaname not in ( 'pg_catalog','information_schema') ";
else
$this->metaTablesSQL = "
select tablename,'T' from pg_tables where tablename like $mask
union
select viewname,'V' from pg_views where viewname like $mask";
}
$ret =& $this->_MetaTables($ttype,$showSchema);
if ($mask) {
$this->metaTablesSQL = $save;
}
return $ret;
}
function &_MetaTables($ttype=false,$showSchema=false,$mask=false)
{
global $ADODB_FETCH_MODE;
$false = false;
if ($mask) {
return $false;
}
if ($this->metaTablesSQL) {
$save = $ADODB_FETCH_MODE;
$ADODB_FETCH_MODE = ADODB_FETCH_NUM;
if ($this->fetchMode !== false) $savem = $this->SetFetchMode(false);
$rs = $this->Execute($this->metaTablesSQL);
if (isset($savem)) $this->SetFetchMode($savem);
$ADODB_FETCH_MODE = $save;
if ($rs === false) return $false;
$arr =& $rs->GetArray();
$arr2 = array();
if ($hast = ($ttype && isset($arr[0][1]))) {
$showt = strncmp($ttype,'T',1);
}
for ($i=0; $i < sizeof($arr); $i++) {
if ($hast) {
if ($showt == 0) {
if (strncmp($arr[$i][1],'T',1) == 0) $arr2[] = trim($arr[$i][0]);
} else {
if (strncmp($arr[$i][1],'V',1) == 0) $arr2[] = trim($arr[$i][0]);
}
} else
$arr2[] = trim($arr[$i][0]);
}
$rs->Close();
return $arr2;
}
return $false;
}
function _findschema(&$table,&$schema)
{
if (!$schema && ($at = strpos($table,'.')) !== false) {
$schema = substr($table,0,$at);
$table = substr($table,$at+1);
}
}
/**
* List columns in a database as an array of ADOFieldObjects.
* See top of file for definition of object.
*
* @param $table table name to query
* @param $normalize makes table name case-insensitive (required by some databases)
* @schema is optional database schema to use - not supported by all databases.
*
* @return array of ADOFieldObjects for current table.
*/
function &MetaColumns($table,$normalize=true)
{
global $ADODB_FETCH_MODE;
$schema = false;
$false = false;
$this->_findschema($table,$schema);
if ($normalize) $table = strtolower($table);
$save = $ADODB_FETCH_MODE;
$ADODB_FETCH_MODE = ADODB_FETCH_NUM;
if ($this->fetchMode !== false) $savem = $this->SetFetchMode(false);
if ($schema) $rs =& $this->Execute(sprintf($this->metaColumnsSQL1,$table,$table,$schema));
else $rs =& $this->Execute(sprintf($this->metaColumnsSQL,$table,$table));
if (isset($savem)) $this->SetFetchMode($savem);
$ADODB_FETCH_MODE = $save;
if ($rs === false) {
return $false;
}
if (!empty($this->metaKeySQL)) {
// If we want the primary keys, we have to issue a separate query
// Of course, a modified version of the metaColumnsSQL query using a
// LEFT JOIN would have been much more elegant, but postgres does
// not support OUTER JOINS. So here is the clumsy way.
$ADODB_FETCH_MODE = ADODB_FETCH_ASSOC;
$rskey = $this->Execute(sprintf($this->metaKeySQL,($table)));
// fetch all result in once for performance.
$keys =& $rskey->GetArray();
if (isset($savem)) $this->SetFetchMode($savem);
$ADODB_FETCH_MODE = $save;
$rskey->Close();
unset($rskey);
}
$rsdefa = array();
if (!empty($this->metaDefaultsSQL)) {
$ADODB_FETCH_MODE = ADODB_FETCH_ASSOC;
$sql = sprintf($this->metaDefaultsSQL, ($table));
$rsdef = $this->Execute($sql);
if (isset($savem)) $this->SetFetchMode($savem);
$ADODB_FETCH_MODE = $save;
if ($rsdef) {
while (!$rsdef->EOF) {
$num = $rsdef->fields['num'];
$s = $rsdef->fields['def'];
if (strpos($s,'::')===false && substr($s, 0, 1) == "'") { /* quoted strings hack... for now... fixme */
$s = substr($s, 1);
$s = substr($s, 0, strlen($s) - 1);
}
$rsdefa[$num] = $s;
$rsdef->MoveNext();
}
} else {
ADOConnection::outp( "==> SQL => " . $sql);
}
unset($rsdef);
}
$retarr = array();
while (!$rs->EOF) {
$fld = new ADOFieldObject();
$fld->name = $rs->fields[0];
$fld->type = $rs->fields[1];
$fld->max_length = $rs->fields[2];
$fld->attnum = $rs->fields[6];
if ($fld->max_length <= 0) $fld->max_length = $rs->fields[3]-4;
if ($fld->max_length <= 0) $fld->max_length = -1;
if ($fld->type == 'numeric') {
$fld->scale = $fld->max_length & 0xFFFF;
$fld->max_length >>= 16;
}
// dannym
// 5 hasdefault; 6 num-of-column
$fld->has_default = ($rs->fields[5] == 't');
if ($fld->has_default) {
$fld->default_value = $rsdefa[$rs->fields[6]];
}
//Freek
$fld->not_null = $rs->fields[4] == 't';
// Freek
if (is_array($keys)) {
foreach($keys as $key) {
if ($fld->name == $key['column_name'] AND $key['primary_key'] == 't')
$fld->primary_key = true;
if ($fld->name == $key['column_name'] AND $key['unique_key'] == 't')
$fld->unique = true; // What name is more compatible?
}
}
if ($ADODB_FETCH_MODE == ADODB_FETCH_NUM) $retarr[] = $fld;
else $retarr[($normalize) ? strtoupper($fld->name) : $fld->name] = $fld;
$rs->MoveNext();
}
$rs->Close();
if (empty($retarr))
return $false;
else
return $retarr;
}
/**
* List indexes on a table as an array.
* @param table table name to query
* @param primary true to only show primary keys. Not actually used for most databases
*
* @return array of indexes on current table. Each element represents an index, and is itself an associative array.
Array (
[name_of_index] => Array
(
[unique] => true or false
[columns] => Array
(
[0] => firstname
[1] => lastname
)
)
*/
function &MetaIndexes ($table, $primary = FALSE)
{
global $ADODB_FETCH_MODE;
$schema = false;
$this->_findschema($table,$schema);
if ($schema) { // requires pgsql 7.3+ - pg_namespace used.
$sql = '
SELECT c.relname as "Name", i.indisunique as "Unique", i.indkey as "Columns"
FROM pg_catalog.pg_class c
JOIN pg_catalog.pg_index i ON i.indexrelid=c.oid
JOIN pg_catalog.pg_class c2 ON c2.oid=i.indrelid
,pg_namespace n
WHERE (c2.relname=\'%s\' or c2.relname=lower(\'%s\')) and c.relnamespace=c2.relnamespace and c.relnamespace=n.oid and n.nspname=\'%s\'';
} else {
$sql = '
SELECT c.relname as "Name", i.indisunique as "Unique", i.indkey as "Columns"
FROM pg_catalog.pg_class c
JOIN pg_catalog.pg_index i ON i.indexrelid=c.oid
JOIN pg_catalog.pg_class c2 ON c2.oid=i.indrelid
WHERE (c2.relname=\'%s\' or c2.relname=lower(\'%s\'))';
}
if ($primary == FALSE) {
$sql .= ' AND i.indisprimary=false;';
}
$save = $ADODB_FETCH_MODE;
$ADODB_FETCH_MODE = ADODB_FETCH_NUM;
if ($this->fetchMode !== FALSE) {
$savem = $this->SetFetchMode(FALSE);
}
$rs = $this->Execute(sprintf($sql,$table,$table,$schema));
if (isset($savem)) {
$this->SetFetchMode($savem);
}
$ADODB_FETCH_MODE = $save;
if (!is_object($rs)) {
$false = false;
return $false;
}
$col_names = $this->MetaColumnNames($table,true,true);
//3rd param is use attnum,
// see http://sourceforge.net/tracker/index.php?func=detail&aid=1451245&group_id=42718&atid=433976
$indexes = array();
while ($row = $rs->FetchRow()) {
$columns = array();
foreach (explode(' ', $row[2]) as $col) {
$columns[] = $col_names[$col];
}
$indexes[$row[0]] = array(
'unique' => ($row[1] == 't'),
'columns' => $columns
);
}
return $indexes;
}
/**
* List columns names in a table as an array.
* @param table table name to query
*
* @return array of column names for current table.
*/
function &MetaColumnNames($table, $numIndexes=false,$useattnum=false /* only for postgres */)
{
$objarr =& $this->MetaColumns($table);
if (!is_array($objarr)) {
$false = false;
return $false;
}
$arr = array();
if ($numIndexes) {
$i = 0;
if ($useattnum) {
foreach($objarr as $v)
$arr[$v->attnum] = $v->name;
} else
foreach($objarr as $v) $arr[$i++] = $v->name;
} else
foreach($objarr as $v) $arr[strtoupper($v->name)] = $v->name;
return $arr;
}
function MetaTransaction($mode,$db)
{
$mode = strtoupper($mode);
$mode = str_replace('ISOLATION LEVEL ','',$mode);
switch($mode) {
case 'READ UNCOMMITTED':
switch($db) {
case 'oci8':
case 'oracle':
return 'ISOLATION LEVEL READ COMMITTED';
default:
return 'ISOLATION LEVEL READ UNCOMMITTED';
}
break;
case 'READ COMMITTED':
return 'ISOLATION LEVEL READ COMMITTED';
break;
case 'REPEATABLE READ':
switch($db) {
case 'oci8':
case 'oracle':
return 'ISOLATION LEVEL SERIALIZABLE';
default:
return 'ISOLATION LEVEL REPEATABLE READ';
}
break;
case 'SERIALIZABLE':
return 'ISOLATION LEVEL SERIALIZABLE';
break;
default:
return $mode;
}
}
}
eval('class postgres7_meta_resultset_EXTENDER extends '. $last_module . '_ResultSet { }');
class postgres7_meta_ResultSet extends postgres7_meta_resultset_EXTENDER
{
/**
* Get the metatype of the column. This is used for formatting. This is because
* many databases use different names for the same type, so we transform the original
* type to our standardised version which uses 1 character codes:
*
* @param t is the type passed in. Normally is ADOFieldObject->type.
* @param len is the maximum length of that field. This is because we treat character
* fields bigger than a certain size as a 'B' (blob).
* @param fieldobj is the field object returned by the database driver. Can hold
* additional info (eg. primary_key for mysql).
*
* @return the general type of the data:
* C for character < 250 chars
* X for teXt (>= 250 chars)
* B for Binary
* N for numeric or floating point
* D for date
* T for timestamp
* L for logical/Boolean
* I for integer
* R for autoincrement counter/integer
*
*
*/
function MetaType($t,$len=-1,$fieldobj=false)
{
if (is_object($t)) {
$fieldobj = $t;
$t = $fieldobj->type;
$len = $fieldobj->max_length;
}
$is_serial = is_object($fieldobj) && $fieldobj->primary_key && $fieldobj->unique && $fieldobj->has_default && substr($fieldobj->default_value,0,8) == 'nextval(';
switch (strtoupper($t)) {
case 'MONEY': // stupid, postgres expects money to be a string
case 'INTERVAL':
case 'CHAR':
case 'CHARACTER':
case 'VARCHAR':
case 'NAME':
case 'BPCHAR':
case '_VARCHAR':
case 'INET':
case 'MACADDR':
if ($len <= $this->blobSize) return 'C';
case 'TEXT':
return 'X';
case 'IMAGE': // user defined type
case 'BLOB': // user defined type
case 'BIT': // This is a bit string, not a single bit, so don't return 'L'
case 'VARBIT':
case 'BYTEA':
return 'B';
case 'BOOL':
case 'BOOLEAN':
return 'L';
case 'DATE':
return 'D';
case 'TIMESTAMP WITHOUT TIME ZONE':
case 'TIME':
case 'DATETIME':
case 'TIMESTAMP':
case 'TIMESTAMPTZ':
return 'T';
case 'INTEGER': return !$is_serial ? 'I' : 'R';
case 'SMALLINT':
case 'INT2': return !$is_serial ? 'I2' : 'R';
case 'INT4': return !$is_serial ? 'I4' : 'R';
case 'BIGINT':
case 'INT8': return !$is_serial ? 'I8' : 'R';
case 'OID':
case 'SERIAL':
return 'R';
case 'FLOAT4':
case 'FLOAT8':
case 'DOUBLE PRECISION':
case 'REAL':
return 'F';
default:
static $typeMap = array(
'VARCHAR' => 'C',
'VARCHAR2' => 'C',
'CHAR' => 'C',
'C' => 'C',
'STRING' => 'C',
'NCHAR' => 'C',
'NVARCHAR' => 'C',
'VARYING' => 'C',
'BPCHAR' => 'C',
'CHARACTER' => 'C',
'INTERVAL' => 'C', # Postgres
'MACADDR' => 'C', # postgres
##
'LONGCHAR' => 'X',
'TEXT' => 'X',
'NTEXT' => 'X',
'M' => 'X',
'X' => 'X',
'CLOB' => 'X',
'NCLOB' => 'X',
'LVARCHAR' => 'X',
##
'BLOB' => 'B',
'IMAGE' => 'B',
'BINARY' => 'B',
'VARBINARY' => 'B',
'LONGBINARY' => 'B',
'B' => 'B',
##
'YEAR' => 'D', // mysql
'DATE' => 'D',
'D' => 'D',
##
'UNIQUEIDENTIFIER' => 'C', # MS SQL Server
##
'TIME' => 'T',
'TIMESTAMP' => 'T',
'DATETIME' => 'T',
'TIMESTAMPTZ' => 'T',
'T' => 'T',
'TIMESTAMP WITHOUT TIME ZONE' => 'T', // postgresql
##
'BOOL' => 'L',
'BOOLEAN' => 'L',
'BIT' => 'L',
'L' => 'L',
##
'COUNTER' => 'R',
'R' => 'R',
'SERIAL' => 'R', // ifx
'INT IDENTITY' => 'R',
##
'INT' => 'I',
'INT2' => 'I',
'INT4' => 'I',
'INT8' => 'I',
'INTEGER' => 'I',
'INTEGER UNSIGNED' => 'I',
'SHORT' => 'I',
'TINYINT' => 'I',
'SMALLINT' => 'I',
'I' => 'I',
##
'LONG' => 'N', // interbase is numeric, oci8 is blob
'BIGINT' => 'N', // this is bigger than PHP 32-bit integers
'DECIMAL' => 'N',
'DEC' => 'N',
'REAL' => 'N',
'DOUBLE' => 'N',
'DOUBLE PRECISION' => 'N',
'SMALLFLOAT' => 'N',
'FLOAT' => 'N',
'NUMBER' => 'N',
'NUM' => 'N',
'NUMERIC' => 'N',
'MONEY' => 'N',
## informix 9.2
'SQLINT' => 'I',
'SQLSERIAL' => 'I',
'SQLSMINT' => 'I',
'SQLSMFLOAT' => 'N',
'SQLFLOAT' => 'N',
'SQLMONEY' => 'N',
'SQLDECIMAL' => 'N',
'SQLDATE' => 'D',
'SQLVCHAR' => 'C',
'SQLCHAR' => 'C',
'SQLDTIME' => 'T',
'SQLINTERVAL' => 'N',
'SQLBYTES' => 'B',
'SQLTEXT' => 'X',
## informix 10
"SQLINT8" => 'I8',
"SQLSERIAL8" => 'I8',
"SQLNCHAR" => 'C',
"SQLNVCHAR" => 'C',
"SQLLVARCHAR" => 'X',
"SQLBOOL" => 'L'
);
$tmap = false;
$t = strtoupper($t);
$tmap = (isset($typeMap[$t])) ? $typeMap[$t] : 'N';
if ($t == 'LONG' && $this->dataProvider == 'oci8') return 'B';
return $tmap;
}
}
}
?>