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| Rev | Author | Line No. | Line |
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| 277 | daniel-mar | 1 | <?php |
| 2 | |||
| 3 | /* |
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| 4 | * OIDplus 2.0 |
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| 511 | daniel-mar | 5 | * Copyright 2019 - 2021 Daniel Marschall, ViaThinkSoft |
| 277 | daniel-mar | 6 | * |
| 7 | * Licensed under the Apache License, Version 2.0 (the "License"); |
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| 8 | * you may not use this file except in compliance with the License. |
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| 9 | * You may obtain a copy of the License at |
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| 10 | * |
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| 11 | * http://www.apache.org/licenses/LICENSE-2.0 |
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| 12 | * |
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| 13 | * Unless required by applicable law or agreed to in writing, software |
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| 14 | * distributed under the License is distributed on an "AS IS" BASIS, |
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| 15 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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| 16 | * See the License for the specific language governing permissions and |
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| 17 | * limitations under the License. |
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| 18 | */ |
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| 19 | |||
| 511 | daniel-mar | 20 | if (!defined('INSIDE_OIDPLUS')) die(); |
| 21 | |||
| 277 | daniel-mar | 22 | class OIDplusQueryResultODBC extends OIDplusQueryResult { |
| 23 | protected $no_resultset; |
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| 24 | protected $res; |
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| 25 | |||
| 26 | public function __construct($res) { |
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| 27 | $this->no_resultset = is_bool($res); |
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| 28 | |||
| 29 | if (!$this->no_resultset) { |
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| 30 | $this->res = $res; |
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| 31 | } |
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| 32 | } |
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| 33 | |||
| 34 | public function __destruct() { |
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| 35 | // odbc_close_cursor($this->res); |
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| 36 | } |
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| 37 | |||
| 38 | public function containsResultSet(): bool { |
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| 39 | return !$this->no_resultset; |
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| 40 | } |
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| 41 | |||
| 502 | daniel-mar | 42 | private function num_rows_workaround(): int { |
| 43 | $dummy = 0; |
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| 44 | |||
| 45 | // go to the end of the result set |
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| 46 | $till_eof = 0; |
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| 47 | while ($temp = odbc_fetch_into($this->res, $dummy)) $till_eof++; |
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| 48 | |||
| 49 | // reset cursor |
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| 50 | @odbc_fetch_row($this->res, 0); |
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| 51 | |||
| 52 | // count the rows in the result set |
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| 53 | $ret = 0; |
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| 54 | while ($temp = odbc_fetch_into($this->res, $dummy)) $ret++; |
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| 55 | |||
| 56 | // this would indicate that the odbc_fetch_row() could not reset the cursor |
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| 57 | if ($ret < $till_eof) return -1; |
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| 58 | |||
| 59 | // go back to the row were started with |
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| 60 | @odbc_fetch_row($this->res, $ret-$till_eof); |
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| 61 | |||
| 62 | return $ret; |
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| 63 | } |
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| 64 | |||
| 277 | daniel-mar | 65 | public function num_rows(): int { |
| 360 | daniel-mar | 66 | if ($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 | 67 | $ret = odbc_num_rows($this->res); |
| 68 | |||
| 69 | // Workaround for drivers that do not support odbc_num_rows (e.g. Microsoft Access) |
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| 70 | if ($ret === -1) $ret = $this->num_rows_workaround(); |
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| 71 | |||
| 72 | if ($ret === -1) throw new OIDplusException(_L('The database driver has problems with "%1"','num_rows')); |
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| 73 | |||
| 74 | return $ret; |
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| 277 | daniel-mar | 75 | } |
| 76 | |||
| 77 | public function fetch_array()/*: ?array*/ { |
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| 360 | daniel-mar | 78 | if ($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 | 79 | $ret = odbc_fetch_array($this->res); |
| 80 | if ($ret === false) $ret = null; |
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| 81 | if (!is_null($ret)) { |
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| 82 | // ODBC gives bit(1) as binary, MySQL as integer and PDO as string. |
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| 83 | // We'll do it like MySQL does, even if ODBC is actually more correct. |
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| 84 | foreach ($ret as &$value) { |
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| 85 | if ($value === chr(0)) $value = 0; |
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| 86 | if ($value === chr(1)) $value = 1; |
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| 87 | } |
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| 88 | } |
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| 89 | return $ret; |
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| 90 | } |
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| 91 | |||
| 92 | public function fetch_object()/*: ?object*/ { |
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| 360 | daniel-mar | 93 | if ($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 | 94 | $ret = odbc_fetch_object($this->res); |
| 95 | if ($ret === false) $ret = null; |
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| 96 | if (!is_null($ret)) { |
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| 97 | // ODBC gives bit(1) as binary, MySQL as integer and PDO as string. |
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| 98 | // We'll do it like MySQL does, even if ODBC is actually more correct. |
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| 99 | foreach ($ret as &$value) { |
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| 100 | if ($value === chr(0)) $value = 0; |
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| 101 | if ($value === chr(1)) $value = 1; |
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| 102 | } |
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| 103 | } |
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| 104 | return $ret; |
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| 105 | } |
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| 360 | daniel-mar | 106 | } |