[4001] | 1 | <?php
|
---|
| 2 | require_once("db_common.php");
|
---|
| 3 | /*! Implementation of DataWrapper for PostgreSQL
|
---|
| 4 | **/
|
---|
| 5 | class PostgreDBDataWrapper extends DBDataWrapper{
|
---|
| 6 | public function query($sql){
|
---|
| 7 | LogMaster::log($sql);
|
---|
| 8 |
|
---|
| 9 | $res=pg_query($this->connection,$sql);
|
---|
| 10 | if ($res===false) throw new Exception("Postgre - sql execution failed\n".pg_last_error($this->connection));
|
---|
| 11 |
|
---|
| 12 | return $res;
|
---|
| 13 | }
|
---|
| 14 |
|
---|
| 15 | protected function select_query($select,$from,$where,$sort,$start,$count){
|
---|
| 16 | $sql="SELECT ".$select." FROM ".$from;
|
---|
| 17 | if ($where) $sql.=" WHERE ".$where;
|
---|
| 18 | if ($sort) $sql.=" ORDER BY ".$sort;
|
---|
| 19 | if ($start || $count)
|
---|
| 20 | $sql.=" OFFSET ".$start." LIMIT ".$count;
|
---|
| 21 | return $sql;
|
---|
| 22 | }
|
---|
| 23 |
|
---|
| 24 | public function get_next($res){
|
---|
| 25 | return pg_fetch_assoc($res);
|
---|
| 26 | }
|
---|
| 27 |
|
---|
| 28 | protected function get_new_id(){
|
---|
| 29 | $res = pg_query( $this->connection, "SELECT LASTVAL() AS seq");
|
---|
| 30 | $data = pg_fetch_assoc($res);
|
---|
| 31 | pg_free_result($res);
|
---|
| 32 | return $data['seq'];
|
---|
| 33 | }
|
---|
| 34 |
|
---|
| 35 | public function escape($data){
|
---|
| 36 | //need to use oci_bind_by_name
|
---|
| 37 | return pg_escape_string($this->connection,$data);
|
---|
| 38 | }
|
---|
| 39 |
|
---|
| 40 | public function tables_list() {
|
---|
| 41 | $sql = "SELECT table_name FROM information_schema.tables WHERE table_schema = 'public'";
|
---|
| 42 | $res = pg_query($this->connection, $sql);
|
---|
| 43 | $tables = array();
|
---|
| 44 | while ($table = pg_fetch_assoc($res)) {
|
---|
| 45 | $tables[] = $table['table_name'];
|
---|
| 46 | }
|
---|
| 47 | return $tables;
|
---|
| 48 | }
|
---|
| 49 |
|
---|
| 50 | public function fields_list($table) {
|
---|
| 51 | $sql = "SELECT * FROM information_schema.constraint_column_usage";
|
---|
| 52 | $result = pg_query($this->connection, $sql);
|
---|
| 53 | $field = pg_fetch_assoc($result);
|
---|
| 54 | $id = $field['column_name'];
|
---|
| 55 |
|
---|
| 56 | $sql = "SELECT * FROM information_schema.columns WHERE table_name ='".$table."';";
|
---|
| 57 | $result = pg_query($this->connection, $sql);
|
---|
| 58 | $fields = array();
|
---|
| 59 | $id = "";
|
---|
| 60 | while ($field = pg_fetch_assoc($result)) {
|
---|
| 61 | $fields[] = $field["column_name"];
|
---|
| 62 | }
|
---|
| 63 | return array('fields' => $fields, 'key' => $id );
|
---|
| 64 | }
|
---|
| 65 | }
|
---|
| 66 | ?> |
---|