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| 1 | <?php |
| 2 | /** |
| 3 | * |
| 4 | * This file is part of the phpBB Forum Software package. |
| 5 | * |
| 6 | * @copyright (c) phpBB Limited <https://www.phpbb.com> |
| 7 | * @license GNU General Public License, version 2 (GPL-2.0) |
| 8 | * |
| 9 | * For full copyright and license information, please see |
| 10 | * the docs/CREDITS.txt file. |
| 11 | * |
| 12 | */ |
| 13 | namespace phpbb\db\doctrine; |
| 14 | |
| 15 | use InvalidArgumentException; |
| 16 | use phpbb\db\tools\doctrine as doctrine_dbtools; |
| 17 | |
| 18 | class table_helper |
| 19 | { |
| 20 | /** |
| 21 | * Converts phpBB's column representation to Doctrine's representation. |
| 22 | * |
| 23 | * @param array $column_data Column data. |
| 24 | * |
| 25 | * @return array<string, array> A pair of type and array of column options. |
| 26 | * @psalm-return array{string, array} |
| 27 | */ |
| 28 | public static function convert_column_data(array $column_data, string $dbms_layer): array |
| 29 | { |
| 30 | $options = self::resolve_dbms_specific_options($column_data, $dbms_layer); |
| 31 | list($type, $opts) = type_converter::convert($column_data[0], $dbms_layer); |
| 32 | $options = array_merge($options, $opts); |
| 33 | return [$type, $options]; |
| 34 | } |
| 35 | |
| 36 | /** |
| 37 | * Resolve DBMS specific options in column data. |
| 38 | * |
| 39 | * @param array $column_data Original column data. |
| 40 | * @param string $dbms_layer DBMS layer name. |
| 41 | * |
| 42 | * @return array Doctrine column options. |
| 43 | */ |
| 44 | private static function resolve_dbms_specific_options(array $column_data, string $dbms_layer): array |
| 45 | { |
| 46 | $doctrine_options = []; |
| 47 | |
| 48 | if (is_array($column_data[1])) |
| 49 | { |
| 50 | $column_data[1] = self::get_default_column_option($column_data[1], $dbms_layer); |
| 51 | } |
| 52 | |
| 53 | if (!is_null($column_data[1])) |
| 54 | { |
| 55 | $doctrine_options['default'] = $column_data[1]; |
| 56 | $doctrine_options['notnull'] = true; |
| 57 | } |
| 58 | else |
| 59 | { |
| 60 | $doctrine_options['notnull'] = false; |
| 61 | } |
| 62 | |
| 63 | $non_string_pattern = '/^[a-z]*(?:int|decimal|bool|timestamp)(?::[0-9]+)?$/'; |
| 64 | if ($dbms_layer === 'oracle' |
| 65 | && !preg_match($non_string_pattern, strtolower($column_data[0])) |
| 66 | && array_key_exists('default', $doctrine_options) |
| 67 | && $doctrine_options['default'] === '') |
| 68 | { |
| 69 | // Not null is true by default and Oracle does not allow empty strings in not null columns |
| 70 | $doctrine_options['notnull'] = false; |
| 71 | } |
| 72 | |
| 73 | if (isset($column_data[2])) |
| 74 | { |
| 75 | if ($column_data[2] === 'auto_increment') |
| 76 | { |
| 77 | $doctrine_options['autoincrement'] = true; |
| 78 | } |
| 79 | else if ($dbms_layer === 'mysql' && $column_data[2] === 'true_sort') |
| 80 | { |
| 81 | $doctrine_options['platformoptions']['collation'] = 'utf8_unicode_ci'; |
| 82 | } |
| 83 | } |
| 84 | |
| 85 | return $doctrine_options; |
| 86 | } |
| 87 | |
| 88 | /** |
| 89 | * Returns the DBMS specific default value for a column definition. |
| 90 | * |
| 91 | * @param array $default_options Database specific default value options. |
| 92 | * @param string $dbms_layer Name of the DBMS layer. |
| 93 | * |
| 94 | * @return mixed Default value for the current DBMS. |
| 95 | * |
| 96 | * @throws InvalidArgumentException When `$schema_name` contains an invalid legacy DBMS name. |
| 97 | */ |
| 98 | private static function get_default_column_option(array $default_options, string $dbms_layer) |
| 99 | { |
| 100 | switch ($dbms_layer) |
| 101 | { |
| 102 | case 'mysql': |
| 103 | return array_key_exists('mysql_41', $default_options) |
| 104 | ? $default_options['mysql_41'] |
| 105 | : $default_options['default']; |
| 106 | case 'oracle': |
| 107 | return array_key_exists('oracle', $default_options) |
| 108 | ? $default_options['oracle'] |
| 109 | : $default_options['default']; |
| 110 | case 'postgresql': |
| 111 | return array_key_exists('postgres', $default_options) |
| 112 | ? $default_options['postgres'] |
| 113 | : $default_options['default']; |
| 114 | case 'mssql': |
| 115 | return array_key_exists('mssqlnative', $default_options) |
| 116 | ? $default_options['mssqlnative'] |
| 117 | : (array_key_exists('mssql', $default_options) ? $default_options['mssql'] : $default_options['default']); |
| 118 | case 'sqlite': |
| 119 | return array_key_exists('sqlite3', $default_options) |
| 120 | ? $default_options['sqlite3'] |
| 121 | : $default_options['default']; |
| 122 | default: |
| 123 | throw new InvalidArgumentException('Invalid schema name.'); |
| 124 | } |
| 125 | } |
| 126 | |
| 127 | /** |
| 128 | * Maps table names to their short names for the purpose of prefixing tables' index names. |
| 129 | * |
| 130 | * @param array $table_names Table names with prefix to add to the map. |
| 131 | * @param string $table_prefix Tables prefix. |
| 132 | * |
| 133 | * @return array<string, string> Pairs of table names and their short name representations. |
| 134 | * @psalm-return array{string, string} |
| 135 | */ |
| 136 | public static function map_short_table_names(array $table_names = [], string $table_prefix = ''): array |
| 137 | { |
| 138 | $short_table_names_map = []; |
| 139 | foreach ($table_names as $table_name) |
| 140 | { |
| 141 | $short_table_names_map[$table_name] = self::generate_shortname(doctrine_dbtools::remove_prefix($table_name, $table_prefix)); |
| 142 | } |
| 143 | |
| 144 | return $short_table_names_map; |
| 145 | } |
| 146 | |
| 147 | /** |
| 148 | * Generates short table names for the purpose of prefixing tables' index names. |
| 149 | * |
| 150 | * @param string $table_name Table name without prefix to generate its short name. |
| 151 | * |
| 152 | * @return string Short table name. |
| 153 | */ |
| 154 | public static function generate_shortname(string $table_name = ''): string |
| 155 | { |
| 156 | // Only shorten actually long names |
| 157 | if (strlen($table_name) > 4) |
| 158 | { |
| 159 | // Remove vowels |
| 160 | $table_name = preg_replace('/([^aeiou_])([aeiou]+)/i', '$1', $table_name); |
| 161 | |
| 162 | // Remove underscores |
| 163 | $table_name = str_replace('_', '', $table_name); |
| 164 | |
| 165 | // Remove repeated consonants and their combinations (like 'ss', 'flfl' and similar) |
| 166 | $table_name = preg_replace('/(.+)\\1+/i', '$1', $table_name); |
| 167 | |
| 168 | // Restrict short name length to 10 chars |
| 169 | $table_name = substr($table_name, 0, 10); |
| 170 | } |
| 171 | |
| 172 | return $table_name; |
| 173 | } |
| 174 | |
| 175 | /** |
| 176 | * Private constructor. Call methods of table_helper statically. |
| 177 | */ |
| 178 | private function __construct() |
| 179 | { |
| 180 | } |
| 181 | } |