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enabled so_sql::search to use UNION

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This commit is contained in:
Ralf Becker 2006-03-26 22:09:02 +00:00
parent a6a7b0b7d5
commit 23f5d80380
1 changed files with 103 additions and 41 deletions
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144
etemplate/inc/class.so_sql.inc.php
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@ -507,41 +507,113 @@ class so_sql
}
$query = $db_filter;
}
$num_rows = 0; // as spec. in max_matches in the user-prefs
if (is_array($start)) list($start,$num_rows) = $start;
if ($start !== false && $num_rows != 1) // need to get the total too, saved in $this->total
{
if ($this->db->Type == 'mysql' && $this->db->ServerInfo['version'] >= 4.0)
{
$mysql_calc_rows = 'SQL_CALC_FOUND_ROWS ';
}
elseif (!$need_full_no_count && (!$join || stristr($join,'LEFT JOIN')))
{
$this->db->select($this->table_name,'COUNT(*)',$query,__LINE__,__FILE__);
$this->total = $this->db->next_record() ? (int) $this->db->f(0) : false;
}
else // cant do a count, have to run the query without limit
{
$this->db->select($this->table_name,($only_keys === true ? implode(',',$this->db_key_cols) : (!$only_keys ? '*' : $only_keys)).
($extra_cols ? ','.(is_array($extra_cols) ? implode(',',$extra_cols) : $extra_cols) : ''),
$query,__LINE__,__FILE__,false,$order_by && !stristr($order_by,'ORDER BY') ? 'ORDER BY '.$order_by : $order_by,false,0,$join);
$this->total = $this->db->num_rows();
}
}
$this->db->select($this->table_name,$mysql_calc_rows.($only_keys === true ? implode(',',$this->db_key_cols) : (!$only_keys ? '*' : $only_keys)).
($extra_cols ? ','.(is_array($extra_cols) ? implode(',',$extra_cols) : $extra_cols) : ''),
$query,__LINE__,__FILE__,$start,$order_by && !stristr($order_by,'ORDER BY') ? 'ORDER BY '.$order_by : $order_by,false,$num_rows,$join);
if ($mysql_calc_rows)
{
$this->total = $this->db->Link_ID->GetOne('SELECT FOUND_ROWS()');
}
if ((int) $this->debug >= 4)
{
echo "<p>so_sql::search(,only_keys=$only_keys,order_by='$order_by',wildcard='$wildcard',empty=$empty,$op,start='$start',".print_r($filter,true).") query=".print_r($query,true).", total='$this->total'</p>\n";
echo "<br>criteria = "; _debug_array($criteria);
}
$colums = ($only_keys === true ? implode(',',$this->db_key_cols) : (!$only_keys ? '*' : $only_keys)).
($extra_cols ? ','.(is_array($extra_cols) ? implode(',',$extra_cols) : $extra_cols) : '');
$num_rows = 0; // as spec. in max_matches in the user-prefs
if (is_array($start)) list($start,$num_rows) = $start;
if (is_array($order_by))
{
list($order_by,$union_order_by) = $order_by;
}
if ($order_by && !stristr($order_by,'ORDER BY'))
{
$order_by = 'ORDER BY '.$order_by;
}
static $union = array();
static $union_cols = array();
if ($start === 'UNION' || $union)
{
$union[] = array(
'table' => $this->table_name,
'cols' => $colums,
'where' => $query,
'append' => $order_by,
'join' => $join,
);
if ($start === 'UNION')
{
if (!$union_cols) // union used the colum-names of the first query
{
$union_cols = $this->_get_columns($only_keys,$extra_cols);
}
return true; // waiting for further calls, before running the union-query
}
// running the union query now
if ($start !== false && $num_rows != 1) // need to get the total too, saved in $this->total
{
if ($this->db->Type == 'mysql' && $this->db->ServerInfo['version'] >= 4.0)
{
$union[0]['cols'] = ($mysql_calc_rows = 'SQL_CALC_FOUND_ROWS ').$union[0]['cols'];
}
else // cant do a count, have to run the query without limit
{
$this->db->union($union,__LINE__,__FILE__);
$this->total = $this->db->num_rows();
}
}
$this->db->union($union,__LINE__,__FILE__,$union_order_by,$start,$num_rows);
$cols = $union_cols;
$union = $union_cols = array();
}
else // no UNION
{
if ($start !== false && $num_rows != 1) // need to get the total too, saved in $this->total
{
if ($this->db->Type == 'mysql' && $this->db->ServerInfo['version'] >= 4.0)
{
$mysql_calc_rows = 'SQL_CALC_FOUND_ROWS ';
}
elseif (!$need_full_no_count && (!$join || stristr($join,'LEFT JOIN')))
{
$this->db->select($this->table_name,'COUNT(*)',$query,__LINE__,__FILE__);
$this->total = $this->db->next_record() ? (int) $this->db->f(0) : false;
}
else // cant do a count, have to run the query without limit
{
$this->db->select($this->table_name,$colums,$query,__LINE__,__FILE__,false,$order_by,false,0,$join);
$this->total = $this->db->num_rows();
}
}
$this->db->select($this->table_name,$mysql_calc_rows.$colums,$query,__LINE__,__FILE__,
$start,$order_by,false,$num_rows,$join);
$cols = $this->_get_columns($only_keys,$extra_cols);
}
if ($mysql_calc_rows)
{
$this->total = $this->db->Link_ID->GetOne('SELECT FOUND_ROWS()');
}
$arr = array();
for ($n = 0; ($row = $this->db->row(true)); ++$n)
{
$data = array();
foreach($cols as $db_col => $col)
{
$data[$col] = $row[$db_col];
}
$arr[] = $this->db2data($data);
}
return $n ? $arr : False;
}
/**
* extract the requested columns from $only_keys and $extra_cols param of a search
*
* @internal
* @param boolean/string $only_keys=true True returns only keys, False returns all cols. comma seperated list of keys to return
* @param string/array $extra_cols='' string or array of strings to be added to the SELECT, eg. "count(*) as num"
* @return array with columns as db-name => internal-name pairs
*/
function _get_columns($only_keys,$extra_cols)
{
if ($only_keys === true) // only primary key
{
$cols = $this->db_key_cols;
@ -570,17 +642,7 @@ class so_sql
$cols[$col] = $col;
}
}
$arr = array();
for ($n = 0; ($row = $this->db->row(true)); ++$n)
{
$data = array();
foreach($cols as $db_col => $col)
{
$data[$col] = $row[$db_col];
}
$arr[] = $this->db2data($data);
}
return $n ? $arr : False;
return $cols;
}
/**