Rev 360 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 277 | daniel-mar | 1 | <?php |
| 2 | |||
| 3 | /* |
||
| 4 | * OIDplus 2.0 |
||
| 5 | * Copyright 2019 Daniel Marschall, ViaThinkSoft |
||
| 6 | * |
||
| 7 | * Licensed under the Apache License, Version 2.0 (the "License"); |
||
| 8 | * you may not use this file except in compliance with the License. |
||
| 9 | * You may obtain a copy of the License at |
||
| 10 | * |
||
| 11 | * http://www.apache.org/licenses/LICENSE-2.0 |
||
| 12 | * |
||
| 13 | * Unless required by applicable law or agreed to in writing, software |
||
| 14 | * distributed under the License is distributed on an "AS IS" BASIS, |
||
| 15 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
||
| 16 | * See the License for the specific language governing permissions and |
||
| 17 | * limitations under the License. |
||
| 18 | */ |
||
| 19 | |||
| 20 | class OIDplusQueryResultODBC extends OIDplusQueryResult { |
||
| 21 | protected $no_resultset; |
||
| 22 | protected $res; |
||
| 23 | |||
| 24 | public function __construct($res) { |
||
| 25 | $this->no_resultset = is_bool($res); |
||
| 26 | |||
| 27 | if (!$this->no_resultset) { |
||
| 28 | $this->res = $res; |
||
| 29 | } |
||
| 30 | } |
||
| 31 | |||
| 32 | public function __destruct() { |
||
| 33 | // odbc_close_cursor($this->res); |
||
| 34 | } |
||
| 35 | |||
| 36 | public function containsResultSet(): bool { |
||
| 37 | return !$this->no_resultset; |
||
| 38 | } |
||
| 39 | |||
| 502 | daniel-mar | 40 | private function num_rows_workaround(): int { |
| 41 | $dummy = 0; |
||
| 42 | |||
| 43 | // go to the end of the result set |
||
| 44 | $till_eof = 0; |
||
| 45 | while ($temp = odbc_fetch_into($this->res, $dummy)) $till_eof++; |
||
| 46 | |||
| 47 | // reset cursor |
||
| 48 | @odbc_fetch_row($this->res, 0); |
||
| 49 | |||
| 50 | // count the rows in the result set |
||
| 51 | $ret = 0; |
||
| 52 | while ($temp = odbc_fetch_into($this->res, $dummy)) $ret++; |
||
| 53 | |||
| 54 | // this would indicate that the odbc_fetch_row() could not reset the cursor |
||
| 55 | if ($ret < $till_eof) return -1; |
||
| 56 | |||
| 57 | // go back to the row were started with |
||
| 58 | @odbc_fetch_row($this->res, $ret-$till_eof); |
||
| 59 | |||
| 60 | return $ret; |
||
| 61 | } |
||
| 62 | |||
| 277 | daniel-mar | 63 | public function num_rows(): int { |
| 360 | daniel-mar | 64 | if ($this->no_resultset) throw new OIDplusException(_L('The query has returned no result set (i.e. it was not a SELECT query)')); |
| 502 | daniel-mar | 65 | $ret = odbc_num_rows($this->res); |
| 66 | |||
| 67 | // Workaround for drivers that do not support odbc_num_rows (e.g. Microsoft Access) |
||
| 68 | if ($ret === -1) $ret = $this->num_rows_workaround(); |
||
| 69 | |||
| 70 | if ($ret === -1) throw new OIDplusException(_L('The database driver has problems with "%1"','num_rows')); |
||
| 71 | |||
| 72 | return $ret; |
||
| 277 | daniel-mar | 73 | } |
| 74 | |||
| 75 | public function fetch_array()/*: ?array*/ { |
||
| 360 | daniel-mar | 76 | if ($this->no_resultset) throw new OIDplusException(_L('The query has returned no result set (i.e. it was not a SELECT query)')); |
| 277 | daniel-mar | 77 | $ret = odbc_fetch_array($this->res); |
| 78 | if ($ret === false) $ret = null; |
||
| 79 | if (!is_null($ret)) { |
||
| 80 | // ODBC gives bit(1) as binary, MySQL as integer and PDO as string. |
||
| 81 | // We'll do it like MySQL does, even if ODBC is actually more correct. |
||
| 82 | foreach ($ret as &$value) { |
||
| 83 | if ($value === chr(0)) $value = 0; |
||
| 84 | if ($value === chr(1)) $value = 1; |
||
| 85 | } |
||
| 86 | } |
||
| 87 | return $ret; |
||
| 88 | } |
||
| 89 | |||
| 90 | public function fetch_object()/*: ?object*/ { |
||
| 360 | daniel-mar | 91 | if ($this->no_resultset) throw new OIDplusException(_L('The query has returned no result set (i.e. it was not a SELECT query)')); |
| 277 | daniel-mar | 92 | $ret = odbc_fetch_object($this->res); |
| 93 | if ($ret === false) $ret = null; |
||
| 94 | if (!is_null($ret)) { |
||
| 95 | // ODBC gives bit(1) as binary, MySQL as integer and PDO as string. |
||
| 96 | // We'll do it like MySQL does, even if ODBC is actually more correct. |
||
| 97 | foreach ($ret as &$value) { |
||
| 98 | if ($value === chr(0)) $value = 0; |
||
| 99 | if ($value === chr(1)) $value = 1; |
||
| 100 | } |
||
| 101 | } |
||
| 102 | return $ret; |
||
| 103 | } |
||
| 360 | daniel-mar | 104 | } |