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Initial working odbc class (MS Access compatible)
git-svn-id: file:///svn/phpbb/trunk@60 89ea8834-ac86-4346-8a33-228a782c2dd0
This commit is contained in:
Paul S. Owen
parent
35f60609f9
commit
fb54a622ff
1 changed files with 84 additions and 135 deletions
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@ -1,6 +1,6 @@
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<?php
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/***************************************************************************
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* mssql.php
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* odbc.php
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* -------------------
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* begin : Saturday, Feb 13, 2001
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* copyright : (C) 2001 The phpBB Group
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@ -31,9 +31,6 @@ class sql_db
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var $query_result;
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var $query_resultset;
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var $query_numrows;
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var $query_limit_offset;
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var $query_limit_numrows;
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var $query_limit_success;
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var $next_id;
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var $row;
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var $row_index;
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@ -118,70 +115,79 @@ class sql_db
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unset($this->row);
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if($query != "")
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{
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//
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// Does query contain any LIMIT code?
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// If so pull out relevant start and num_results
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// This isn't terribly easy with MSSQL, whatever
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// you do will potentially impact performance
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// compared to an 'in-built' limit
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//
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if(eregi(" LIMIT ", $query))
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if(!eregi("^INSERT ",$query))
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{
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eregi("^([a-zA-Z0-9 \*\,\'\"\+\?\.\(\)]+) LIMIT ([0-9]+)[, ]*([0-9]+)*", $query, $limits);
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$query = $limits[1];
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if($limits[3])
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if(eregi(" LIMIT ", $query))
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{
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$row_offset = $limits[2];
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$num_rows = $limits[3];
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eregi("^([a-zA-Z0-9 \*\,\'\"\+\?\.\(\)]+) LIMIT ([0-9]+)[, ]*([0-9]+)*", $query, $limits);
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$query = $limits[1];
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if($limits[3])
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{
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$row_offset = $limits[2];
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$num_rows = $limits[3];
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}
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else
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{
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$row_offset = 0;
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$num_rows = $limits[2];
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}
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$this->query_result = @odbc_exec($this->db_connect_id, $query);
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$query_limit_offset = $row_offset;
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$this->result_numrows[$this->query_result] = $num_rows;
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}
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else
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{
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$this->query_result = @odbc_exec($this->db_connect_id, $query);
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$row_offset = 0;
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$num_rows = $limits[2];
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$this->result_numrows[$this->query_result] = 5E6;
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}
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// odbc_exec("SET ROWCOUNT ".($row_offset + $num_rows));
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$this->query_result = @odbc_query($this->db_connect_id, $query);
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// odbc_exec("SET ROWCOUNT 0");
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$this->query_limit_success[$this->query_result] = true;
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$this->query_limit_offset[$this->query_result] = -1;
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$this->query_limit_numrows[$this->query_result] = $num_rows;
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if($this->query_result && $row_offset>0)
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if($this->query_result)
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{
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$result = @odbc_data_seek($this->query_result, $row_offset);
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if(!$result)
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$result_id = $this->query_result;
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for($i = 1; $i < @odbc_num_fields($result_id)+1; $i++)
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{
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$this->query_limit_success[$query_id] = false;
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$this->result_field_names[$result_id][] = @odbc_field_name($result_id, $i);
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}
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$this->query_limit_offset[$this->query_result] = $row_offset;
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$i = $row_offset + 1;
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$k = 0;
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while(odbc_fetch_row($result_id, $i) && $k < $this->result_numrows[$result_id])
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{
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for($j = 1; $j < count($this->result_field_names[$result_id])+1; $j++)
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{
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$this->result_rowset[$result_id][$k][$this->result_field_names[$result_id][$j-1]] = odbc_result($result_id, $j);
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}
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$i++;
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$k++;
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}
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$this->result_numrows[$result_id] = $k;
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$this->row_index[$result_id] = 0;
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}
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}
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else if(eregi("^INSERT ", $query))
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else
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{
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$this->query_result = @odbc_exec($this->db_connect_id, $query);
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$this->query_result = odbc_exec($this->db_connect_id, $query);
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// $next_id_query = @odbc_exec("SELECT @@IDENTITY AS this_id");
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$this->next_id[$this->query_result] = $this->sql_fetchfield("this_id", -1, $next_id_query);
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if($this->query_result)
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{
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// This works for MSSQL, MS Access ... no idea about other DBs ...
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$id_result = odbc_exec($this->db_connect_id, "SELECT @@IDENTITY AS last_id");
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if($id_result)
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{
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@odbc_fetch_row($id_result);
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$this->next_id[$this->query_result] = odbc_result($id_result, 1);
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}
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}
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$this->query_limit_offset[$this->query_result] = -1;
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$this->query_limit_numrows[$this->query_result] = -1;
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}
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else
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{
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$this->query_result = @odbc_exec($this->db_connect_id, $query);
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$this->query_limit_offset[$this->query_result] = -1;
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$this->query_limit_numrows[$this->query_result] = -1;
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}
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if($this->query_result && !eregi("^INSERT ",$query))
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{
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$this->result_rowset[$this->query_result] = $this->sql_fetchrowset($this->query_result);
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$this->result_numrows[$this->query_result] = count($this->result_rowset[$this->query_result]);
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$this->row_index[$this->query_result] = 0;
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$this->query_limit_offset[$this->query_result] = 0;
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$this->result_numrows[$this->query_result] = 0;
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}
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return $this->query_result;
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@ -203,15 +209,7 @@ class sql_db
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}
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if($query_id)
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{
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if($this->query_limit_offset[$query_id] > 0)
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{
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$result = @odbc_num_rows($query_id) - $this->query_limit_offset[$query_id];
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}
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else
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{
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$result = $this->result_numrows[$query_id];
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}
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return $result;
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return $this->result_numrows[$query_id];
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}
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else
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{
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@ -226,7 +224,7 @@ class sql_db
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}
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if($query_id)
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{
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$result = @mssql_num_fields($query_id);
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$result = count($this->result_field_names[$query_id]);
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return $result;
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}
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else
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@ -242,7 +240,7 @@ class sql_db
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}
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if($query_id)
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{
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$result = @mssql_field_name($query_id, $offset);
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$result = $this->result_field_names[$query_id][$offset];
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return $result;
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}
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else
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@ -258,7 +256,7 @@ class sql_db
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}
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if($query_id)
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{
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$result = @mssql_field_type($query_id, $offset);
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$result = @odbc_field_type($query_id, $offset);
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return $result;
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}
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else
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@ -274,23 +272,15 @@ class sql_db
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}
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if($query_id)
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{
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if($this->query_limit_offset[$query_id] > 0)
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if($this->row_index[$query_id] < $this->result_numrows[$query_id])
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{
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if($this->query_limit_success)
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{
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$this->row = @mssql_fetch_array($query_id);
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return $this->row;
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}
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else
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{
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return false;
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}
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$result = $this->result_rowset[$query_id][$this->row_index[$query_id]];
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$this->row_index[$query_id]++;
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return $result;
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}
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else
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{
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return $this->result_rowset[$query_id][$this->row_index[$query_id]];
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$this->row_index[$query_id]++;
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return false;
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}
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}
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else
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@ -306,42 +296,15 @@ class sql_db
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}
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if($query_id)
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{
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if(!empty($this->result_rowset[$query_id])){
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return $this->result_rowset[$query_id];
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}
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for($i = 1; $i < @odbc_num_fields($query_id)+1; $i++)
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{
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$this->result_field_names[] = odbc_field_name($query_id, $i);
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}
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if($this->query_limit_success[$query_id])
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{
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}
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else if($this->query_limit_numrows[$query_id] == -1)
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{
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$i = 0;
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while(@odbc_fetch_row($query_id))
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{
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for($j = 1; $j < count($this->result_field_names)+1; $j++)
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{
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$result[$i][$this->result_field_names[$j-1]] = odbc_result($query_id, $j);
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}
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$i++;
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}
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}
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else
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{
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$result = false;
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}
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return $result;
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$this->row_index[$query_id] = $this->result_numrows[$query_id];
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return $this->result_rowset[$query_id];
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}
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else
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{
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return false;
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}
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}
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function sql_fetchfield($field, $row = -1, $query_id)
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function sql_fetchfield($field, $row = -1, $query_id = 0)
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{
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if(!$query_id)
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{
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@ -349,33 +312,24 @@ class sql_db
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}
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if($query_id)
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{
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if($row != -1)
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if($row < $this->result_numrows[$query_id])
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{
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if($this->query_limit_offset[$query_id] > 0)
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if($row == -1)
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{
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if($this->query_limit_offset[$query_id] > 0 && $this->query_limit_success)
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{
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$result = @mssql_result($this->query_result, ($this->query_limit_offset[$query_id] + $row), $field);
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}
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else
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{
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return false;
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}
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$getrow = $this->row_index[$query_id]-1;
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}
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else
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{
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$result = @mssql_result($this->query_result, $row, $field);
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$getrow = $row;
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}
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return $this->result_rowset[$query_id][$getrow][$this->result_field_names[$query_id][$field]];
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}
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else
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{
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if(empty($this->row))
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{
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$this->row = @mssql_fetch_array($query_id);
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$result = $this->row[$field];
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}
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return false;
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}
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return $result;
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}
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else
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{
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@ -390,15 +344,8 @@ class sql_db
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}
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if($query_id)
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{
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if($this->query_limit_offset[$query_id] > 0)
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{
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$result = @mssql_data_seek($query_id, ($this->query_limit_offset[$query_id] + $rownum));
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}
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else
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{
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$result = @mssql_data_seek($query_id, $rownum);
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}
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return $result;
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$this->row_index[$query_id] = 0;
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return true;
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}
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else
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{
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@ -428,7 +375,7 @@ class sql_db
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}
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if($query_id)
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{
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$result = @mssql_free_result($query_id);
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$result = @odbc_free_result($query_id);
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return $result;
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}
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else
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@ -438,7 +385,9 @@ class sql_db
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}
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function sql_error($query_id = 0)
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{
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$result[message] = @mssql_get_last_message();
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$result["code"] = @odbc_error($this->db_connect_id);
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$result["message"] = @odbc_errormsg($this->db_connect_id);
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return $result;
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}
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