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config and functions useful when working with relationfeatures

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This commit is contained in:
Mike Beck
2002-06-15 01:39:11 +00:00
parent 153e8f52bf
commit d65c2cb7b0
1 changed files with 171 additions and 0 deletions
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libraries/relation.lib.php3 Normal file
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<?php
/**
* Set of functions used with the relation and pdf feature
*/
if (!defined('PMA_RELATION_LIB_INCLUDED')){
define('PMA_RELATION_LIB_INCLUDED', 1);
/**
* do a query as controluser if possible, otherwise
* as normal user
* @return integer resultid
* @global string URL of Page to show in case of error
* @global string Name of db to come back to
* @global integer Ressourceid of DB connect as controluser
* @global array Configurationinfo about relationstuff
*
* @author Mike Beck<mikebeck@users.sourceforge.net>
* @access public
*/
function PMA_query_as_cu($sql) {
global $err_url_0, $db, $dbh, $cfgRelation;
if (isset($dbh)) {
PMA_mysql_select_db($cfgRelation['db'],$dbh);
$result = @PMA_mysql_query($sql, $dbh) or PMA_mysqlDie(mysql_error($dbh), $sql, '', $err_url_0);
PMA_mysql_select_db($db,$dbh);
} else {
PMA_mysql_select_db($cfgRelation['db']);
$result = @PMA_mysql_query($sql) or PMA_mysqlDie('', $sql, '', $err_url_0);
PMA_mysql_select_db($db);
}
if($result){
return $result;
} else {
return FALSE;
}
}
/**
* Defines the relation parameters for the current user
* just a copy of the functions used for relations ;-)
* but added some stuff to check what will work
*
* @return array the relation parameters for the current user
*
* @global array the list of settings for the current server
* @global integer the id of the current server
* @author Mike Beck <mikebeck@users.sourceforge.net>
*
* @access public
*/
function PMA_getRelationsParam()
{
global $server, $err_url_0, $db, $table,$cfg;
$cfgRelation = '';
$cfgRelation['relwork'] = FALSE;
$cfgRelation['displaywork'] = FALSE;
$cfgRelation['pdfwork'] = FALSE;
$cfgRelation['commwork'] = FALSE;
// No server selected -> no bookmark table
if ($server == 0) {
return '';
}
$cfgRelation['user'] = $GLOBALS['cfg']['Server']['user'];
$cfgRelation['db'] = $GLOBALS['cfg']['Server']['pmadb'];
// now i just check if all tables that i need are present
// so i can for example enable relations but not pdf...
// i was thinking of checking if they have all required columns
// but i fear it might be too slow
// PMA_mysql_select_db($cfgRelation['db']);
$tab_query = 'SHOW TABLES FROM ' . PMA_backquote($cfgRelation['db']);
$tab_rs = PMA_query_as_cu($tab_query);
//while ($curr_table = @PMA_mysql_fetch_array($tab_rs)) {
while ($curr_table = @PMA_mysql_fetch_array($tab_rs)) {
if($curr_table[0] == $cfg['Servers']['Server']['bookmarktable']) {
continue;
} else if ($curr_table[0] == $GLOBALS['cfg']['Server']['relation']) {
$cfgRelation['relation'] = $curr_table[0];
} else if ($curr_table[0] == $GLOBALS['cfg']['Server']['table_info']) {
$cfgRelation['table_info'] = $curr_table[0];
} else if ($curr_table[0] == $GLOBALS['cfg']['Server']['table_coords']) {
$cfgRelation['table_coords'] = $curr_table[0];
} else if ($curr_table[0] == $GLOBALS['cfg']['Server']['column_comments']) {
$cfgRelation['column_comments'] = $curr_table[0];
} else if ($curr_table[0] == $GLOBALS['cfg']['Server']['pdf_pages']) {
$cfgRelation['pdf_pages'] = $curr_table[0];
}
}
if(isset($cfgRelation['relation'])) {
$cfgRelation['relwork'] = TRUE;
if(isset($cfgRelation['table_info'])) {
$cfgRelation['displaywork'] = TRUE;
}
if(isset($cfgRelation['table_coords']) && isset($cfgRelation['pdf_pages'])) {
$cfgRelation['pdfwork'] = TRUE;
}
if(isset($cfgRelation['column_comments'])) {
$cfgRelation['commwork'] = TRUE;
}
}
mysql_free_result($tab_rs);
return $cfgRelation;
} // end of the 'PMA_getRelationsParam()' function
/**
* Get all Relations to foreign tables for a given table
* or optionally a given column in a table
*
* @return array db,table,column
*
* @global array the list of Relationsettings
*
* @access public
* @author Mike Beck <mikebeck@users.sourceforge.net>
*/
function getForeigners($db,$table,$column=FALSE) {
global $cfgRelation, $err_url_0;
$_rel_query = 'SELECT master_field, foreign_db,foreign_table,foreign_field'
. ' FROM ' . PMA_backquote($cfgRelation['relation'])
. ' WHERE master_db = \'' . $db . '\' '
. ' AND master_table = \'' . $table . '\' ';
if(!empty($column)){
$_rel_query .= ' AND master_field = \'' . $column . '\'';
}
$_relations = PMA_query_as_cu($_rel_query);
$i=0;
while ($relrow = @PMA_mysql_fetch_array($_relations)) {
$field = $relrow['master_field'];
$foreign[$field]['foreign_db'] = $relrow['foreign_db'];
$foreign[$field]['foreign_table'] = $relrow['foreign_table'];
$foreign[$field]['foreign_field'] = $relrow['foreign_field'];
$i++;
} // end while
if(is_array($foreign)) {
return $foreign;
} else {
return FALSE;
}
} // End function getForeigners
/**
* Get the displayfield of a table
* @return string fieldname
* @global array the list of Relationsettings
* @access public
* @author Mike Beck <mikebeck@users.sourceforge.net>
*/
function getDisplayField($db,$table) {
global $cfgRelation;
$_disp_query = 'SELECT display_field FROM ' . PMA_backquote($cfgRelation['table_info'])
. ' WHERE db_name = \'' . PMA_sqlAddslashes($db) . '\''
. ' AND table_name = \'' . PMA_sqlAddslashes($table) . '\'';
$_disp_res = PMA_query_as_cu($_disp_query);
$row = ($_disp_res ? PMA_mysql_fetch_array($_disp_res) : '');
if (isset($row['display_field'])) {
return $row['display_field'];
} else {
return FALSE;
}
}
} // $__PMA_RELATION_LIB__INCLUDED
?>