1 | <?php
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2 | require_once("db_common.php");
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3 | /*! Implementation of DataWrapper for PDO
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4 |
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5 | if you plan to use it for Oracle - use Oracle connection type instead
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6 | **/
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7 | class PDODBDataWrapper extends DBDataWrapper{
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8 | private $last_result;//!< store result or last operation
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9 |
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10 | public function query($sql){
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11 | LogMaster::log($sql);
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12 |
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13 | $res=$this->connection->query($sql);
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14 | if ($res===false) throw new Exception("PDO - sql execution failed\n".$this->connection->errorInfo());
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15 |
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16 | return new PDOResultSet($res);
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17 | }
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18 |
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19 | protected function select_query($select,$from,$where,$sort,$start,$count){
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20 | $sql="SELECT ".$select." FROM ".$from;
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21 | if ($where) $sql.=" WHERE ".$where;
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22 | if ($sort) $sql.=" ORDER BY ".$sort;
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23 | if ($start || $count) {
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24 | if ($this->connection->getAttribute(PDO::ATTR_DRIVER_NAME)=="pgsql")
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25 | $sql.=" OFFSET ".$start." LIMIT ".$count;
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26 | else
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27 | $sql.=" LIMIT ".$start.",".$count;
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28 | }
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29 | return $sql;
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30 | }
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31 |
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32 |
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33 | public function get_next($res){
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34 | $data = $res->next();
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35 | return $data;
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36 | }
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37 |
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38 | protected function get_new_id(){
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39 | return $this->connection->lastInsertId();
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40 | }
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41 |
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42 | public function escape($str){
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43 | $res=$this->connection->quote($str);
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44 | if ($res===false) //not supported by pdo driver
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45 | return str_replace("'","''",$str);
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46 | return substr($res,1,-1);
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47 | }
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48 |
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49 | }
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50 |
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51 | class PDOResultSet{
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52 | private $res;
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53 | public function __construct($res){
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54 | $this->res = $res;
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55 | }
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56 | public function next(){
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57 | $data = $this->res->fetch(PDO::FETCH_ASSOC);
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58 | if (!$data){
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59 | $this->res->closeCursor();
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60 | return null;
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61 | }
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62 | return $data;
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63 | }
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64 | }
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65 | ?> |
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