db_($query);
}
/* public: connection management */
function connect($Database = '', $Host = '', $User = '', $Password = '')
{
/* Handle defaults */
if ($Database == '')
{
$Database = $this->Database;
}
if ($Host == '')
{
$Host = $this->Host;
}
if ($User == '')
{
$User = $this->User;
}
if ($Password == '')
{
$Password = $this->Password;
}
/* establish connection, select database */
if (! $this->Link_ID)
{
if ($GLOBALS['phpgw_info']['server']['db_persistent'])
{
$this->Link_ID=mysql_pconnect($Host, $User, $Password);
}
else
{
$this->Link_ID=mysql_connect($Host, $User, $Password);
}
if (!$this->Link_ID)
{
$this->halt(($GLOBALS['phpgw_info']['server']['db_persistent']?'p':'')."connect($Host, $User, \$Password) failed.");
return 0;
}
if (!@mysql_select_db($Database,$this->Link_ID))
{
$this->halt("cannot use database ".$this->Database);
return 0;
}
}
return $this->Link_ID;
}
/* This only affects systems not using persistant connections */
function disconnect()
{
if($this->Link_ID <> 0)
{
@mysql_close($this->Link_ID);
$this->Link_ID = 0;
return 1;
}
else
{
return 0;
}
}
function to_timestamp($epoch)
{
return date('Y-m-d H:i:s',$epoch);
}
function from_timestamp($timestamp)
{
ereg('([0-9]{4})-([0-9]{2})-([0-9]{2}) ([0-9]{2}):([0-9]{2}):([0-9]{2})',$timestamp,$parts);
return mktime($parts[4],$parts[5],$parts[6],$parts[2],$parts[3],$parts[1]);
}
/* public: discard the query result */
function free()
{
@mysql_free_result($this->Query_ID);
$this->Query_ID = 0;
}
/* public: perform a query */
/* I added the line and file section so we can have better error reporting. (jengo) */
function query($Query_String, $line = '', $file = '')
{
/* No empty queries, please, since PHP4 chokes on them. */
/* The empty query string is passed on from the constructor,
* when calling the class without a query, e.g. in situations
* like these: '$db = new db_Subclass;'
*/
if ($Query_String == '')
{
return 0;
}
if (!$this->connect())
{
return 0; /* we already complained in connect() about that. */
};
# New query, discard previous result.
if ($this->Query_ID)
{
$this->free();
}
if ($this->Debug)
{
printf("Debug: query = %s
\n", $Query_String);
}
$this->Query_ID = @mysql_query($Query_String,$this->Link_ID);
$this->Row = 0;
$this->Errno = mysql_errno();
$this->Error = mysql_error();
if (! $this->Query_ID)
{
$this->halt("Invalid SQL: ".$Query_String, $line, $file);
}
# Will return nada if it fails. That's fine.
return $this->Query_ID;
}
// public: perform a query with limited result set
function limit_query($Query_String, $offset, $line = '', $file = '', $num_rows = '')
{
if (! $num_rows)
{
$num_rows = $GLOBALS['phpgw_info']['user']['preferences']['common']['maxmatchs'];
}
if ($offset == 0)
{
$Query_String .= ' LIMIT ' . $num_rows;
}
else
{
$Query_String .= ' LIMIT ' . $offset . ',' . $num_rows;
}
if ($this->Debug)
{
printf("Debug: limit_query = %s
offset=%d, num_rows=%d
\n", $Query_String, $offset, $num_rows);
}
return $this->query($Query_String, $line, $file);
}
/* public: walk result set */
function next_record()
{
if (!$this->Query_ID)
{
$this->halt('next_record called with no query pending.');
return 0;
}
$this->Record = @mysql_fetch_array($this->Query_ID);
$this->Row += 1;
$this->Errno = mysql_errno();
$this->Error = mysql_error();
$stat = is_array($this->Record);
if (!$stat && $this->Auto_Free)
{
$this->free();
}
return $stat;
}
/* public: position in result set */
function seek($pos = 0)
{
$status = @mysql_data_seek($this->Query_ID, $pos);
if ($status)
{
$this->Row = $pos;
}
else
{
$this->halt("seek($pos) failed: result has ".$this->num_rows()." rows");
/* half assed attempt to save the day,
* but do not consider this documented or even
* desireable behaviour.
*/
@mysql_data_seek($this->Query_ID, $this->num_rows());
$this->Row = $this->num_rows;
return 0;
}
return 1;
}
function get_last_insert_id($table, $field)
{
/* This will get the last insert ID created on the current connection. Should only be called
* after an insert query is run on a table that has an auto incrementing field. $table and
* $field are required, but unused here since it's unnecessary for mysql. For compatibility
* with pgsql, the params must be supplied.
*/
if (!isset($table) || $table == '' || !isset($field) || $field == '')
{
return -1;
}
return @mysql_insert_id($this->Link_ID);
}
/* public: table locking */
function lock($table, $mode='write')
{
$this->connect();
$query = "lock tables ";
if (is_array($table))
{
while (list($key,$value)=each($table))
{
if ($key == "read" && $key!=0)
{
$query .= "$value read, ";
}
else
{
$query .= "$value $mode, ";
}
}
$query = substr($query,0,-2);
}
else
{
$query .= "$table $mode";
}
$res = @mysql_query($query, $this->Link_ID);
if (!$res)
{
$this->halt("lock($table, $mode) failed.");
return 0;
}
return $res;
}
function unlock()
{
$this->connect();
$res = @mysql_query("unlock tables");
if (!$res)
{
$this->halt("unlock() failed.");
return 0;
}
return $res;
}
/* public: evaluate the result (size, width) */
function affected_rows()
{
return @mysql_affected_rows($this->Link_ID);
}
function num_rows()
{
return @mysql_num_rows($this->Query_ID);
}
function num_fields()
{
return @mysql_num_fields($this->Query_ID);
}
/* public: sequence numbers */
function nextid($seq_name)
{
$this->connect();
if ($this->lock($this->Seq_Table))
{
/* get sequence number (locked) and increment */
$q = sprintf("select nextid from %s where seq_name = '%s'",
$this->Seq_Table,
$seq_name);
$id = @mysql_query($q, $this->Link_ID);
$res = @mysql_fetch_array($id);
/* No current value, make one */
if (!is_array($res))
{
$currentid = 0;
$q = sprintf("insert into %s values('%s', %s)",
$this->Seq_Table,
$seq_name,
$currentid);
$id = @mysql_query($q, $this->Link_ID);
}
else
{
$currentid = $res["nextid"];
}
$nextid = $currentid + 1;
$q = sprintf("update %s set nextid = '%s' where seq_name = '%s'",
$this->Seq_Table,
$nextid,
$seq_name);
$id = @mysql_query($q, $this->Link_ID);
$this->unlock();
}
else
{
$this->halt("cannot lock ".$this->Seq_Table." - has it been created?");
return 0;
}
return $nextid;
}
/* public: return table metadata */
function metadata($table='',$full=false)
{
$count = 0;
$id = 0;
$res = array();
/* if no $table specified, assume that we are working with a query */
/* result */
if ($table)
{
$this->connect();
$id = @mysql_list_fields($this->Database, $table);
if (!$id)
{
$this->halt("Metadata query failed.");
}
}
else
{
$id = $this->Query_ID;
if (!$id)
{
$this->halt("No query specified.");
}
}
$count = @mysql_num_fields($id);
/* made this IF due to performance (one if is faster than $count if's) */
if (!$full)
{
for ($i=0; $i<$count; $i++)
{
$res[$i]['table'] = @mysql_field_table ($id, $i);
$res[$i]['name'] = @mysql_field_name ($id, $i);
$res[$i]['type'] = @mysql_field_type ($id, $i);
$res[$i]['len'] = @mysql_field_len ($id, $i);
$res[$i]['flags'] = @mysql_field_flags ($id, $i);
}
}
else
{
/* full */
$res["num_fields"]= $count;
for ($i=0; $i<$count; $i++)
{
$res[$i]['table'] = @mysql_field_table ($id, $i);
$res[$i]['name'] = @mysql_field_name ($id, $i);
$res[$i]['type'] = @mysql_field_type ($id, $i);
$res[$i]['len'] = @mysql_field_len ($id, $i);
$res[$i]['flags'] = @mysql_field_flags ($id, $i);
$res['meta'][$res[$i]['name']] = $i;
}
}
/* free the result only if we were called on a table */
if ($table)
{
@mysql_free_result($id);
}
return $res;
}
/* private: error handling */
function halt($msg, $line = '', $file = '')
{
$this->Error = @mysql_error($this->Link_ID); // need to be BEFORE unlock,
$this->Errno = @mysql_errno($this->Link_ID); // else we get its error or none
if ($this->Link_ID) // only if we have a link, else infinite loop
{
$this->unlock(); /* Just in case there is a table currently locked */
}
if ($this->Halt_On_Error == "no")
{
return;
}
$this->haltmsg($msg);
if ($file)
{
printf("
File: %s",$file);
}
if ($line)
{
printf("
Line: %s",$line);
}
printf("
Function: %s\n",function_backtrace());
if ($this->Halt_On_Error != "report")
{
echo "Session halted.";
$GLOBALS['phpgw']->common->phpgw_exit(True);
}
}
function haltmsg($msg)
{
printf("Database error: %s
\n", $msg);
if ($this->Errno != "0" && $this->Error != "()")
{
printf("MySQL Error: %s (%s)
\n",$this->Errno,$this->Error);
}
}
function table_names()
{
if (!$this->Link_ID)
{
$this->connect();
}
if (!$this->Link_ID)
{
return array();
}
$return = Array();
$this->query("SHOW TABLES");
$i=0;
while ($info=@mysql_fetch_row($this->Query_ID))
{
$return[$i]['table_name'] = $info[0];
$return[$i]['tablespace_name'] = $this->Database;
$return[$i]['database'] = $this->Database;
$i++;
}
return $return;
}
function create_database($adminname = '', $adminpasswd = '')
{
$currentUser = $this->User;
$currentPassword = $this->Password;
$currentDatabase = $this->Database;
if ($adminname != '')
{
$this->User = $adminname;
$this->Password = $adminpasswd;
$this->Database = "mysql";
}
$this->disconnect();
$this->query("CREATE DATABASE $currentDatabase");
$this->query("grant all on $currentDatabase.* to $currentUser@localhost identified by '$currentPassword'");
$this->disconnect();
$this->User = $currentUser;
$this->Password = $currentPassword;
$this->Database = $currentDatabase;
$this->connect();
/*return $return; */
}
}
?>