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360 | daniel-mar | 1 | <?php |
2 | |||
3 | /* |
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4 | * OIDplus 2.0 |
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5 | * Copyright 2019 Daniel Marschall, ViaThinkSoft |
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6 | * |
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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 | |||
20 | class OIDplusSqlSlangPluginMsSQL extends OIDplusSqlSlangPlugin { |
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21 | |||
22 | public static function id(): string { |
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23 | return 'mssql'; |
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24 | } |
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25 | |||
26 | public function natOrder($fieldname, $order='asc'): string { |
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27 | |||
28 | $order = strtolower($order); |
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29 | if (($order != 'asc') && ($order != 'desc')) { |
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30 | throw new OIDplusException(_L('Invalid order "%1" (needs to be "asc" or "desc")',$order)); |
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31 | } |
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32 | |||
33 | $out = array(); |
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34 | |||
35 | $max_arc_len = OIDplus::baseConfig()->getValue('LIMITS_MAX_OID_ARC_SIZE'); |
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36 | |||
37 | // 1. sort by namespace (oid, guid, ...) |
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38 | $out[] = "SUBSTRING($fieldname,1,CHARINDEX(':',$fieldname)-1) $order"; |
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39 | |||
40 | for ($i=1; $i<=OIDplus::baseConfig()->getValue('LIMITS_MAX_OID_DEPTH'); $i++) { |
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41 | // 2. Sort by the rest arcs one by one; note that MySQL can only handle decimal(65), not decimal($max_arc_len) |
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42 | $out[] = "dbo.getOidArc($fieldname, $max_arc_len, $i) $order"; |
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43 | } |
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44 | |||
45 | // 3. as last resort, sort by the identifier itself, e.g. if the function getOidArc always return 0 (happens if it is not an OID) |
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46 | $out[] = "$fieldname $order"; |
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47 | |||
48 | return implode(', ', $out); |
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49 | |||
50 | } |
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51 | |||
52 | public function sqlDate(): string { |
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53 | return 'getdate()'; |
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54 | } |
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55 | |||
56 | public function detect(OIDplusDatabaseConnection $db): bool { |
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57 | try { |
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58 | $vers = $db->query("select @@version as dbms_version")->fetch_object()->dbms_version; |
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59 | $vers = strtolower($vers); |
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60 | return strpos($vers, 'microsoft sql server') !== false; |
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61 | } catch (Exception $e) { |
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62 | return false; |
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63 | } |
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64 | } |
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65 | |||
66 | public function insert_id(OIDplusDatabaseConnection $db): int { |
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67 | // Note: SCOPE_IDENTITY() does not work, does only give 0. |
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68 | // $res = $db->query("SELECT SCOPE_IDENTITY() AS ID"); |
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69 | $res = $db->query("SELECT @@IDENTITY AS ID"); |
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70 | $row = $res->fetch_array(); |
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71 | return (int)$row['ID']; |
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72 | } |
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73 | |||
74 | public function setupSetTablePrefix($cont, $table, $prefix): string { |
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75 | $cont = str_replace('['.$table.']', '['.$prefix.$table.']', $cont); |
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76 | $cont = str_replace("'dbo.$table'", "'dbo.$prefix$table'", $cont); |
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77 | $cont = str_replace('PK_'.$table, 'PK_'.$prefix.$table, $cont); |
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78 | $cont = str_replace('IX_'.$table, 'PK_'.$prefix.$table, $cont); |
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79 | $cont = str_replace('DF__'.$table, 'DF__'.$prefix.$table, $cont); |
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80 | return $cont; |
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81 | } |
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82 | |||
83 | public function setupCreateDbIfNotExists($database): string { |
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84 | return ""; |
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85 | } |
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86 | |||
87 | public function setupUseDatabase($database): string { |
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88 | return "USE [$database]\n\nGO\n\n"; |
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89 | } |
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433 | daniel-mar | 90 | |
91 | public function isNullFunction($expr1, $expr2): string { |
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92 | return "isnull($expr1, $expr2)"; |
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93 | } |
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502 | daniel-mar | 94 | |
95 | public function filterQuery($sql): string { |
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96 | return $sql; |
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97 | } |
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98 | |||
99 | public function getSQLBool($bool): string { |
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100 | return $bool ? '1' : '0'; |
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101 | } |
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360 | daniel-mar | 102 | } |