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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 | |
| 14 | namespace phpbb\db\doctrine; |
| 15 | |
| 16 | use Doctrine\DBAL\Platforms\SQLServerPlatform; |
| 17 | use Doctrine\DBAL\Schema\Identifier; |
| 18 | use Doctrine\DBAL\Schema\TableDiff; |
| 19 | |
| 20 | /** |
| 21 | * SQLServer specific schema restrictions for BC. |
| 22 | */ |
| 23 | class sqlsrv_platform extends SQLServerPlatform |
| 24 | { |
| 25 | /** |
| 26 | * {@inheritDoc} |
| 27 | * |
| 28 | * Renames the default constraints to use the classic phpBB's names |
| 29 | */ |
| 30 | public function getDefaultConstraintDeclarationSQL($table, array $column) |
| 31 | { |
| 32 | $sql = parent::getDefaultConstraintDeclarationSQL($table, $column); |
| 33 | |
| 34 | return str_replace( |
| 35 | [ |
| 36 | $this->generate_doctrine_identifier_name($table), |
| 37 | $this->generate_doctrine_identifier_name($column['name']), |
| 38 | ], [ |
| 39 | $table, |
| 40 | $column['name'] . '_1', |
| 41 | ], |
| 42 | $sql); |
| 43 | } |
| 44 | |
| 45 | /** |
| 46 | * {@inheritDoc} |
| 47 | * |
| 48 | * Renames the default constraints to use the classic phpBB's names |
| 49 | */ |
| 50 | public function getAlterTableSQL(TableDiff $diff) |
| 51 | { |
| 52 | $sql = []; |
| 53 | |
| 54 | // When dropping a column, if it has a default we need to drop the default constraint first |
| 55 | foreach ($diff->removedColumns as $column) |
| 56 | { |
| 57 | if (!$column->getAutoincrement()) |
| 58 | { |
| 59 | $sql[] = $this->getDropConstraintSQL($this->generate_doctrine_default_constraint_name($diff->name, $column->getQuotedName($this)), $diff->name); |
| 60 | } |
| 61 | } |
| 62 | |
| 63 | // When dropping a primary key, the constraint needs to be dropped |
| 64 | foreach ($diff->removedIndexes as $key => $index) |
| 65 | { |
| 66 | if ($index->isPrimary()) |
| 67 | { |
| 68 | unset($diff->removedIndexes[$key]); |
| 69 | $sql[] = $this->getDropConstraintSQL($index->getQuotedName($this), $diff->name); |
| 70 | } |
| 71 | } |
| 72 | |
| 73 | $sql = array_merge($sql, parent::getAlterTableSQL($diff)); |
| 74 | |
| 75 | $doctrine_names = []; |
| 76 | $phpbb_names = []; |
| 77 | |
| 78 | // OLD Table name |
| 79 | $doctrine_names[] = $this->generate_doctrine_identifier_name($diff->name); |
| 80 | $phpbb_names[] = $diff->name; |
| 81 | |
| 82 | // NEW Table name if relevant |
| 83 | if ($diff->getNewName() !== false) |
| 84 | { |
| 85 | $doctrine_names[] = $this->generate_doctrine_identifier_name($diff->getNewName()->getName()); |
| 86 | $phpbb_names[] = $diff->getNewName()->getName(); |
| 87 | } |
| 88 | |
| 89 | foreach ($diff->addedColumns as $column) |
| 90 | { |
| 91 | $doctrine_names[] = $this->generate_doctrine_identifier_name($column->getQuotedName($this)); |
| 92 | $phpbb_names[] = $column->getQuotedName($this) . '_1'; |
| 93 | } |
| 94 | |
| 95 | foreach ($diff->removedColumns as $column) |
| 96 | { |
| 97 | $doctrine_names[] = $this->generate_doctrine_identifier_name($column->getQuotedName($this)); |
| 98 | $phpbb_names[] = $column->getQuotedName($this) . '_1'; |
| 99 | } |
| 100 | |
| 101 | foreach ($diff->renamedColumns as $column) |
| 102 | { |
| 103 | $doctrine_names[] = $this->generate_doctrine_identifier_name($column->getQuotedName($this)); |
| 104 | $phpbb_names[] = $column->getQuotedName($this) . '_1'; |
| 105 | } |
| 106 | |
| 107 | foreach ($diff->changedColumns as $column) |
| 108 | { |
| 109 | $doctrine_names[] = $this->generate_doctrine_identifier_name($column->column->getQuotedName($this)); |
| 110 | $phpbb_names[] = $column->column->getQuotedName($this) . '_1'; |
| 111 | |
| 112 | if ($column->oldColumnName != $column->column->getQuotedName($this)) |
| 113 | { |
| 114 | $doctrine_names[] = $this->generate_doctrine_identifier_name($column->oldColumnName); |
| 115 | $phpbb_names[] = $column->oldColumnName . '_1'; |
| 116 | } |
| 117 | } |
| 118 | |
| 119 | return str_replace($doctrine_names, $phpbb_names, $sql); |
| 120 | } |
| 121 | |
| 122 | /** |
| 123 | * Returns a hash value for a given identifier. |
| 124 | * |
| 125 | * @param string $identifier Identifier to generate a hash value for. |
| 126 | * |
| 127 | * @return string |
| 128 | */ |
| 129 | private function generate_doctrine_identifier_name(string $identifier): string |
| 130 | { |
| 131 | // Always generate name for unquoted identifiers to ensure consistency. |
| 132 | $identifier = new Identifier($identifier); |
| 133 | |
| 134 | return strtoupper(dechex(crc32($identifier->getName()))); |
| 135 | } |
| 136 | |
| 137 | /** |
| 138 | * Returns a unique default constraint name for a table and column. |
| 139 | * |
| 140 | * @param string $table Name of the table to generate the unique default constraint name for. |
| 141 | * @param string $column Name of the column in the table to generate the unique default constraint name for. |
| 142 | * |
| 143 | * @return string |
| 144 | */ |
| 145 | private function generate_doctrine_default_constraint_name(string $table, string $column): string |
| 146 | { |
| 147 | return 'DF_' . $this->generate_doctrine_identifier_name($table) . '_' . $this->generate_doctrine_identifier_name($column); |
| 148 | } |
| 149 | } |