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<?php
// File get_tables.inc.php / ibWebAdmin
// Purpose function that gets the table properties for all tables in the database
// Author Lutz Brueckner <irie@gmx.de>
// Copyright (c) 2000, 2001, 2002, 2003, 2004 by Lutz Brueckner,
// published under the terms of the GNU General Public Licence v.2,
// see file LICENCE for details
// Created <00/10/06 08:34:43 lb>
//
// $Id: get_tables.inc.php,v 1.26 2004/02/07 15:37:53 lbrueckner Exp $
//
// set the session variables $s_tables[], $s_fields[]
// for the database $dbhandle
//
function get_tables() {
global $dbhandle, $ib_error, $s_tables, $s_fields, $s_foreigns, $s_primaries, $s_uniques, $s_login;
global $s_charsets, $s_tables_counts, $s_views_counts;
$previous = $s_tables;
$s_tables = array();
$s_fields = array();
// returns the tablenames, owner and the privileges for the current user
$sql = 'SELECT R.RDB$RELATION_NAME AS RNAME,'
.' R.RDB$VIEW_BLR AS VBLR,'
.' R.RDB$OWNER_NAME AS OWNER,'
.' P.RDB$PRIVILEGE AS PRIV'
.' FROM RDB$RELATIONS R'
.' LEFT JOIN RDB$USER_PRIVILEGES P'
.' ON R.RDB$RELATION_NAME=P.RDB$RELATION_NAME'
." AND (P.RDB\$USER='".$s_login['user']."' OR P.RDB\$USER='PUBLIC')"
.'WHERE R.RDB$SYSTEM_FLAG=0'
.' ORDER BY R.RDB$RELATION_NAME';
$res = @ibase_query($dbhandle, $sql) or ib_error(__FILE__, __LINE__, $sql);
if (!is_resource($res)) {
return FALSE;
}
// initialize $s_tables[]
$lastone = '';
while ($row = ibase_fetch_object($res)) {
$tablename = trim($row->RNAME);
if (isset($row->PRIV) && trim($row->PRIV) != '') {
$s_tables[$tablename]['privileges'][] = trim($row->PRIV);
}
else {
$s_tables[$tablename]['privileges'] = array();
}
// collect all privileges above, but do the rest only once
if ($tablename == $lastone) {
continue;
}
$s_tables[$tablename]['status'] = (isset($previous[$tablename])) ? $previous[$tablename]['status'] : 'close';
$s_tables[$tablename]['is_view'] = (isset($row->VBLR) && $row->VBLR !== NULL) ? TRUE : FALSE;
$s_tables[$tablename]['owner'] = trim($row->OWNER);
$lastone = $tablename;
}
ibase_free_result($res);
unset($previous);
// find the check, not null, unique, pk and fk and constraints
$sql ='SELECT RC.RDB$RELATION_NAME TNAME,'
.' RC.RDB$CONSTRAINT_TYPE RTYPE,'
.' RC.RDB$CONSTRAINT_NAME CNAME,'
.' RC.RDB$INDEX_NAME INAME,'
.' CC.RDB$TRIGGER_NAME TRIGNAME,'
.' SE.RDB$FIELD_NAME SENAME,'
.' SE.RDB$FIELD_POSITION POS,'
.' DP.RDB$FIELD_NAME DPNAME'
.' FROM RDB$RELATION_CONSTRAINTS RC'
.' LEFT JOIN RDB$CHECK_CONSTRAINTS CC'
.' ON RC.RDB$CONSTRAINT_NAME=CC.RDB$CONSTRAINT_NAME'
." AND (RC.RDB\$CONSTRAINT_TYPE='NOT NULL' OR RC.RDB\$CONSTRAINT_TYPE='CHECK')"
.' LEFT JOIN RDB$INDEX_SEGMENTS SE'
.' ON RC.RDB$INDEX_NAME=SE.RDB$INDEX_NAME'
.' LEFT JOIN RDB$DEPENDENCIES DP'
.' ON CC.RDB$TRIGGER_NAME=DP.RDB$DEPENDENT_NAME'
.' ORDER BY RC.RDB$RELATION_NAME';
$res = @ibase_query($dbhandle, $sql) or ib_error(__FILE__, __LINE__, $sql);
// reset the index infos
$s_foreigns = array();
$s_primaries = array();
$s_uniques = array();
$constraints = array();
while ($row = ibase_fetch_object($res)) {
$cname = trim($row->CNAME);
switch (trim($row->RTYPE)) {
case 'NOT NULL':
$constraints[trim($row->TNAME)][trim($row->TRIGNAME)]['notnull'] = $cname;
break;
case 'CHECK':
$constraints[trim($row->TNAME)][trim($row->DPNAME)]['check'] = $cname;
break;
case 'UNIQUE':
$constraints[trim($row->TNAME)][trim($row->SENAME)]['unique'] = $cname;
$s_uniques[$cname]['index'] = trim($row->INAME);
$s_uniques[$cname]['cols'] = isset($s_uniques[$cname]['cols']) ? $s_uniques[$cname]['cols']++ : 1;
break;
case 'FOREIGN KEY':
$constraints[trim($row->TNAME)][trim($row->SENAME)]['foreign'] = $cname;
$s_foreigns[$cname]['index'] = trim($row->INAME);
$s_foreigns[$cname]['cols'] = isset($s_foreigns[$cname]['cols']) ? $s_foreigns[$cname]['cols']++ : 1;
break;
case 'PRIMARY KEY':
$constraints[trim($row->TNAME)][trim($row->SENAME)]['primary'] = $cname;
$s_primaries[$cname]['index'] = trim($row->INAME);
$s_primaries[$cname]['cols'] = isset($s_primaries[$cname]['cols']) ? $s_primaries[$cname]['cols']++ : 1;
break;
}
}
ibase_free_result($res);
// debug_var($sql);
// debug_var($constraints);
// debug_var($s_foreigns);
// debug_var($s_primaries);
// find the field properties for all non-system tables
$sql = 'SELECT DISTINCT R.RDB$FIELD_NAME AS FNAME,'
.' R.RDB$NULL_FLAG AS NFLAG,'
.' R.RDB$DEFAULT_SOURCE AS DSOURCE,'
.' R.RDB$FIELD_POSITION,'
.' R.RDB$RELATION_NAME AS TNAME,'
.' R.RDB$COLLATION_ID AS COLLID,'
.' F.RDB$FIELD_NAME AS DNAME,'
.' F.RDB$FIELD_TYPE AS FTYPE,'
.' F.RDB$FIELD_SUB_TYPE AS STYPE,'
.' F.RDB$FIELD_LENGTH AS FLEN,'
.' F.RDB$COMPUTED_SOURCE AS CSOURCE,'
.' F.RDB$FIELD_PRECISION AS FPREC,'
.' F.RDB$FIELD_SCALE AS FSCALE,'
.' F.RDB$SEGMENT_LENGTH AS SEGLEN,'
.' F.RDB$CHARACTER_SET_ID AS CHARID,'
.' D.RDB$LOWER_BOUND AS LBOUND,'
.' D.RDB$UPPER_BOUND AS UBOUND'
.' FROM RDB$RELATION_FIELDS R '
.' JOIN RDB$FIELDS F ON R.RDB$FIELD_SOURCE=F.RDB$FIELD_NAME'
.' LEFT JOIN RDB$FIELD_DIMENSIONS D ON R.RDB$FIELD_SOURCE=D.RDB$FIELD_NAME'
.' WHERE F.RDB$SYSTEM_FLAG=0'
. ' ORDER BY R.RDB$FIELD_POSITION';
$res = @ibase_query($dbhandle, $sql) or ib_error(__FILE__, __LINE__, $sql);
//initialize $s_fields[]
$i = 0;
while ($row = ibase_fetch_object($res)) {
$field = $s_fields[$i]['name'] = trim($row->FNAME);
$table = $s_fields[$i]['table'] = trim($row->TNAME);
if (strpos($row->DNAME, 'RDB$') !== 0){
$s_fields[$i]['domain'] = 'Yes';
$s_fields[$i]['type'] = trim($row->DNAME);
} else {
$s_fields[$i]['stype'] = (isset($row->STYPE)) ? $row->STYPE : NULL;
$s_fields[$i]['type'] = get_datatype($row->FTYPE, $s_fields[$i]['stype']);
}
if ($s_fields[$i]['type'] == 'VARCHAR' || $s_fields[$i]['type'] == 'CHARACTER') {
$s_fields[$i]['size'] = $row->FLEN;
}
// this field is computed
if (isset($row->CSOURCE)) {
$s_fields[$i]['comp'] = 'Yes';
$s_fields[$i]['csource'] = FALSE;
}
// this field has a default value
if (isset($row->DSOURCE)) {
$s_fields[$i]['default']= 'Yes';
$s_fields[$i]['dsource'] = FALSE;
}
if (($s_fields[$i]['type'] == 'DECIMAL') or ($s_fields[$i]['type'] == 'NUMERIC')) {
$s_fields[$i]['prec'] = $row->FPREC;
$s_fields[$i]['scale'] = -($row->FSCALE);
}
if ($s_fields[$i]['type'] == 'BLOB') {
$s_fields[$i]['segsize'] = $row->SEGLEN;
}
$s_fields[$i]['charset'] = isset($row->CHARID) ? $s_charsets[$row->CHARID]['name'] : NULL;
$s_fields[$i]['collate'] = (isset($row->COLLID) && $row->COLLID != 0 && isset($s_charsets[$row->CHARID]['collations'][$row->COLLID]))
? $s_charsets[$row->CHARID]['collations'][$row->COLLID]
: NULL;
// optional array dimensions
if (isset($row->LBOUND)) {
$s_fields[$i]['lower_bound'] = $row->LBOUND;
$s_fields[$i]['upper_bound'] = $row->UBOUND;
}
// column constraints
foreach (array('notnull', 'check', 'unique', 'foreign', 'primary') as $ctype) {
if (isset($constraints[$table][$field][$ctype])) {
$s_fields[$i][$ctype] = $constraints[$table][$field][$ctype];
}
}
$i++;
}
// debug_var($s_fields);
foreach ($s_tables as $name => $properties) {
if (($properties['is_view'] == FALSE && $s_tables_counts == 'yes')
|| ($properties['is_view'] == TRUE && $s_views_counts == 'yes')) {
$sql = 'SELECT COUNT(*) AS CNT FROM '.$name;
$res = ibase_query($dbhandle, $sql)
or $ib_error .= ibase_errmsg()."<br>\n";
if (is_resource($res)) {
$row = ibase_fetch_object($res);
$s_tables[$name]['count'] = $row->CNT;
ibase_free_result($res);
}
}
}
return TRUE;
}
?>
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