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635 | daniel-mar | 1 | <?php |
2 | |||
3 | /* |
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4 | * OIDplus 2.0 |
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1086 | daniel-mar | 5 | * Copyright 2019 - 2023 Daniel Marschall, ViaThinkSoft |
635 | 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 | |||
1050 | daniel-mar | 20 | namespace ViaThinkSoft\OIDplus; |
635 | daniel-mar | 21 | |
1086 | daniel-mar | 22 | // phpcs:disable PSR1.Files.SideEffects |
23 | \defined('INSIDE_OIDPLUS') or die; |
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24 | // phpcs:enable PSR1.Files.SideEffects |
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25 | |||
635 | daniel-mar | 26 | class OIDplusQueryResultODBC extends OIDplusQueryResult { |
1130 | daniel-mar | 27 | /** |
28 | * @var bool |
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29 | */ |
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635 | daniel-mar | 30 | protected $no_resultset; |
1130 | daniel-mar | 31 | |
32 | /** |
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33 | * @var mixed |
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34 | */ |
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635 | daniel-mar | 35 | protected $res; |
36 | |||
1116 | daniel-mar | 37 | /** |
1130 | daniel-mar | 38 | * @param mixed $res |
1116 | daniel-mar | 39 | */ |
635 | daniel-mar | 40 | public function __construct($res) { |
41 | $this->no_resultset = is_bool($res); |
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42 | |||
43 | if (!$this->no_resultset) { |
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44 | $this->res = $res; |
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45 | } |
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46 | } |
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47 | |||
1116 | daniel-mar | 48 | /** |
49 | * |
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50 | */ |
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635 | daniel-mar | 51 | public function __destruct() { |
52 | // odbc_close_cursor($this->res); |
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53 | } |
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54 | |||
1116 | daniel-mar | 55 | /** |
56 | * @return bool |
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57 | */ |
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635 | daniel-mar | 58 | public function containsResultSet(): bool { |
59 | return !$this->no_resultset; |
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60 | } |
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61 | |||
1116 | daniel-mar | 62 | /** |
63 | * @return int |
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64 | */ |
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635 | daniel-mar | 65 | private function num_rows_workaround(): int { |
1130 | daniel-mar | 66 | $dummy = array(); |
635 | daniel-mar | 67 | |
68 | // go to the end of the result set |
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69 | $till_eof = 0; |
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70 | while ($temp = odbc_fetch_into($this->res, $dummy)) $till_eof++; |
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71 | |||
72 | // reset cursor |
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73 | @odbc_fetch_row($this->res, 0); |
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74 | |||
75 | // count the rows in the result set |
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76 | $ret = 0; |
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77 | while ($temp = odbc_fetch_into($this->res, $dummy)) $ret++; |
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78 | |||
79 | // this would indicate that the odbc_fetch_row() could not reset the cursor |
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80 | if ($ret < $till_eof) return -1; |
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81 | |||
82 | // go back to the row were started with |
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83 | @odbc_fetch_row($this->res, $ret-$till_eof); |
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84 | |||
85 | return $ret; |
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86 | } |
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87 | |||
1116 | daniel-mar | 88 | /** |
89 | * @return int |
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90 | * @throws OIDplusException |
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91 | */ |
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1152 | daniel-mar | 92 | protected function do_num_rows(): int { |
635 | daniel-mar | 93 | $ret = odbc_num_rows($this->res); |
94 | |||
95 | // Workaround for drivers that do not support odbc_num_rows (e.g. Microsoft Access) |
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96 | if ($ret === -1) $ret = $this->num_rows_workaround(); |
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97 | |||
98 | return $ret; |
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99 | } |
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100 | |||
1116 | daniel-mar | 101 | /** |
102 | * @return array|null |
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103 | */ |
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1152 | daniel-mar | 104 | protected function do_fetch_array()/*: ?array*/ { |
635 | daniel-mar | 105 | $ret = odbc_fetch_array($this->res); |
106 | if ($ret === false) $ret = null; |
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107 | return $ret; |
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108 | } |
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109 | |||
1116 | daniel-mar | 110 | /** |
1156 | daniel-mar | 111 | * @return object|null |
1116 | daniel-mar | 112 | */ |
1152 | daniel-mar | 113 | protected function do_fetch_object()/*: ?object*/ { |
635 | daniel-mar | 114 | $ret = odbc_fetch_object($this->res); |
115 | if ($ret === false) $ret = null; |
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116 | return $ret; |
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117 | } |
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783 | daniel-mar | 118 | } |