initial commit

lib/symfony/vendor/creole/drivers/mysql/MySQLResultSet.php

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+<?php
+/*
+ *  $Id: MySQLResultSet.php,v 1.24 2006/01/17 19:44:39 hlellelid Exp $
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * This software consists of voluntary contributions made by many individuals
+ * and is licensed under the LGPL. For more information please see
+ * <http://creole.phpdb.org>.
+ */
+ 
+require_once 'creole/ResultSet.php';
+require_once 'creole/common/ResultSetCommon.php';
+
+/**
+ * MySQL implementation of ResultSet class.
+ *
+ * MySQL supports OFFSET / LIMIT natively; this means that no adjustments or checking
+ * are performed.  We will assume that if the lmitSQL() operation failed that an
+ * exception was thrown, and that OFFSET/LIMIT will never be emulated for MySQL.
+ * 
+ * @author    Hans Lellelid <hans@xmpl.org>
+ * @version   $Revision: 1.24 $
+ * @package   creole.drivers.mysql
+ */
+class MySQLResultSet extends ResultSetCommon implements ResultSet {
+
+    /**
+     * @see ResultSet::seek()
+     */ 
+    public function seek($rownum)
+    {
+        // MySQL rows start w/ 0, but this works, because we are
+        // looking to move the position _before_ the next desired position
+         if (!@mysql_data_seek($this->result, $rownum)) {
+                return false;
+        }
+        $this->cursorPos = $rownum;
+        return true;
+    }
+    
+    /**
+     * @see ResultSet::next()
+     */ 
+    public function next()
+    {
+        $this->fields = mysql_fetch_array($this->result, $this->fetchmode);        
+
+           if (!$this->fields) {
+            $errno = mysql_errno($this->conn->getResource());
+            if (!$errno) {
+                // We've advanced beyond end of recordset.
+                $this->afterLast();
+                return false;
+            } else {
+                throw new SQLException("Error fetching result", mysql_error($this->conn->getResource()));
+            }
+        }
+        
+        if ($this->fetchmode === ResultSet::FETCHMODE_ASSOC && $this->lowerAssocCase) {
+            $this->fields = array_change_key_case($this->fields, CASE_LOWER);
+        }
+        
+        // Advance cursor position
+        $this->cursorPos++;                
+        return true;
+    }
+
+    /**
+     * @see ResultSet::getRecordCount()
+     */
+    function getRecordCount()
+    {
+        $rows = @mysql_num_rows($this->result);
+        if ($rows === null) {
+            throw new SQLException("Error fetching num rows", mysql_error($this->conn->getResource()));
+        }
+        return (int) $rows;
+    }
+
+    /**
+     * @see ResultSet::close()
+     */ 
+    function close()
+    {        
+        if(is_resource($this->result))
+            @mysql_free_result($this->result);
+        $this->fields = array();
+    }    
+        
+    /**
+     * Get string version of column.
+     * No rtrim() necessary for MySQL, as this happens natively.
+     * @see ResultSet::getString()
+     */
+    public function getString($column) 
+    {
+        $idx = (is_int($column) ? $column - 1 : $column);
+        if (!array_key_exists($idx, $this->fields)) { throw new SQLException("Invalid resultset column: " . $column); }
+        if ($this->fields[$idx] === null) { return null; }
+        return (string) $this->fields[$idx];
+    }
+    
+    /**
+     * Returns a unix epoch timestamp based on either a TIMESTAMP or DATETIME field.
+     * @param mixed $column Column name (string) or index (int) starting with 1.
+     * @return string
+     * @throws SQLException - If the column specified is not a valid key in current field array.
+     */
+    function getTimestamp($column, $format='Y-m-d H:i:s') 
+    {
+        if (is_int($column)) { $column--; } // because Java convention is to start at 1 
+        if (!array_key_exists($column, $this->fields)) { throw new SQLException("Invalid resultset column: " . (is_int($column) ? $column + 1 : $column)); }
+        if ($this->fields[$column] === null) { return null; }
+        
+        $ts = strtotime($this->fields[$column]);
+        if ($ts === -1 || $ts === false) { // in PHP 5.1 return value changes to FALSE
+            // otherwise it's an ugly MySQL timestamp!
+            // YYYYMMDDHHMMSS
+            if (preg_match('/([\d]{4})([\d]{2})([\d]{2})([\d]{2})([\d]{2})([\d]{2})/', $this->fields[$column], $matches)) {
+                //              YYYY      MM        DD      HH        MM       SS
+                //                $1        $2          $3      $4        $5         $6
+                $ts = mktime($matches[4], $matches[5], $matches[6], $matches[2], $matches[3], $matches[1]);        
+            }
+        }
+        if ($ts === -1 || $ts === false) { // if it's still -1, then there's nothing to be done; use a different method.
+            throw new SQLException("Unable to convert value at column " . (is_int($column) ? $column + 1 : $column) . " to timestamp: " . $this->fields[$column]);
+        }        
+        if ($format === null) {
+            return $ts;
+        }
+        if (strpos($format, '%') !== false) {
+            return strftime($format, $ts);
+        } else {
+            return date($format, $ts);
+        }
+    }
+
+}