Lines
100.00%
114 / 114
Functions and Methods
100.00%
11 / 11
Classes and Traits
100.00%
1 / 1
| Name | Lines | Functions and Methods | CRAP | Classes and Traits | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| MySqlSchemaInspector | 100.00% | 114 / 114 | 100.00% | 11 / 11 | 21 | 100.00% | 1 / 1 | |||
| getDefaultSchemaGrammar | 100.00% | 1 / 1 | 100.00% | 1 / 1 | 1 | |||||
| columnTypeMatches | 100.00% | 1 / 1 | 100.00% | 1 / 1 | 1 | |||||
| referencingTables | 100.00% | 10 / 10 | 100.00% | 1 / 1 | 2 | |||||
| tables | 100.00% | 9 / 9 | 100.00% | 1 / 1 | 2 | |||||
| table | 100.00% | 8 / 8 | 100.00% | 1 / 1 | 2 | |||||
| columns | 100.00% | 20 / 20 | 100.00% | 1 / 1 | 2 | |||||
| normalizeColumnType | 100.00% | 1 / 1 | 100.00% | 1 / 1 | 1 | |||||
| normalizeColumnDefault | 100.00% | 1 / 1 | 100.00% | 1 / 1 | 1 | |||||
| indexes | 100.00% | 26 / 26 | 100.00% | 1 / 1 | 4 | |||||
| foreignKeys | 100.00% | 35 / 35 | 100.00% | 1 / 1 | 3 | |||||
| normalizeAction | 100.00% | 2 / 2 | 100.00% | 1 / 1 | 2 | |||||
| 1 | <?php | |
| 2 | ||
| 3 | declare(strict_types=1); | |
| 4 | ||
| 5 | namespace BlueprintAU\Radiant\Database\Schema\Inspectors; | |
| 6 | ||
| 7 | /** | |
| 8 | * Reads the live schema on MySQL — `information_schema` tables. | |
| 9 | * | |
| 10 | * @extends SchemaInspector<\BlueprintAU\Radiant\Database\Schema\Grammars\MySqlSchemaGrammar> | |
| 11 | */ | |
| 12 | class MySqlSchemaInspector extends SchemaInspector | |
| 13 | { | |
| 14 | /** | |
| 15 | * The dialect's schema grammar (the factory hook). | |
| 16 | * | |
| 17 | * @return \BlueprintAU\Radiant\Database\Schema\Grammars\MySqlSchemaGrammar | |
| 18 | */ | |
| 19 | protected function getDefaultSchemaGrammar(): \BlueprintAU\Radiant\Database\Schema\Grammars\SchemaGrammar | |
| 20 | { | |
| 21 | return new \BlueprintAU\Radiant\Database\Schema\Grammars\MySqlSchemaGrammar(); | |
| 22 | } | |
| 23 | ||
| 24 | /** | |
| 25 | * Whether a live column's native type text matches the declared | |
| 26 | * logical type — the MySQL mapping. | |
| 27 | * | |
| 28 | * @param string $liveType | |
| 29 | * @param \BlueprintAU\Radiant\Database\Schema\Enums\ColumnType $declaredType | |
| 30 | * @param int|null $declaredLength | |
| 31 | * @param int|null $declaredPrecision | |
| 32 | * @param int|null $declaredScale | |
| 33 | * @return bool | |
| 34 | */ | |
| 35 | public function columnTypeMatches(string $liveType, \BlueprintAU\Radiant\Database\Schema\Enums\ColumnType $declaredType, int|null $declaredLength, int|null $declaredPrecision = null, int|null $declaredScale = null): bool | |
| 36 | { | |
| 37 | return strtolower($liveType) === strtolower($this->schemaGrammar->type($declaredType, $declaredLength, $declaredPrecision, $declaredScale)); | |
| 38 | } | |
| 39 | ||
| 40 | /** | |
| 41 | * The live tables that declare a foreign key into the given table. | |
| 42 | * | |
| 43 | * @param string $table | |
| 44 | * @return list<string> | |
| 45 | */ | |
| 46 | public function referencingTables(string $table): array | |
| 47 | { | |
| 48 | $statement = $this->pdo->prepare( | |
| 49 | 'SELECT DISTINCT table_name FROM information_schema.key_column_usage ' | |
| 50 | . 'WHERE table_schema = DATABASE() AND referenced_table_name = ? ' | |
| 51 | . 'AND referenced_table_name IS NOT NULL', | |
| 52 | ); | |
| 53 | $statement->execute([$table]); | |
| 54 | ||
| 55 | $tables = []; | |
| 56 | foreach ($statement->fetchAll(\PDO::FETCH_COLUMN) as $name) { | |
| 57 | $tables[] = (string) $name; | |
| 58 | } | |
| 59 | ||
| 60 | return $tables; | |
| 61 | } | |
| 62 | /** | |
| 63 | * Every table name in the live schema (the connection's default database). | |
| 64 | * | |
| 65 | * @return list<string> | |
| 66 | */ | |
| 67 | public function tables(): array | |
| 68 | { | |
| 69 | $statement = $this->pdo->prepare( | |
| 70 | 'SELECT table_name FROM information_schema.tables ' | |
| 71 | . 'WHERE table_schema = DATABASE() ORDER BY table_name', | |
| 72 | ); | |
| 73 | $statement->execute(); | |
| 74 | ||
| 75 | // Build by append: the append target is inferred as list<string>, | |
| 76 | // which keeps the return type exact no matter how the underlying | |
| 77 | // PHP version types fetchAll(PDO::FETCH_COLUMN). | |
| 78 | $tables = []; | |
| 79 | foreach ($statement->fetchAll(\PDO::FETCH_COLUMN) as $name) { | |
| 80 | $tables[] = (string) $name; | |
| 81 | } | |
| 82 | ||
| 83 | return $tables; | |
| 84 | } | |
| 85 | ||
| 86 | /** | |
| 87 | * One table's live schema. | |
| 88 | * | |
| 89 | * @param string $name | |
| 90 | * @return LiveTable | |
| 91 | * @throws \RuntimeException | |
| 92 | */ | |
| 93 | public function table(string $name): LiveTable | |
| 94 | { | |
| 95 | if (!$this->hasTable($name)) { | |
| 96 | throw new \RuntimeException("Table [{$name}] does not exist in the MySQL schema."); | |
| 97 | } | |
| 98 | ||
| 99 | return new LiveTable( | |
| 100 | $name, | |
| 101 | $this->columns($name), | |
| 102 | $this->indexes($name), | |
| 103 | $this->foreignKeys($name), | |
| 104 | ); | |
| 105 | } | |
| 106 | ||
| 107 | /** | |
| 108 | * The live columns, from `information_schema.columns`. | |
| 109 | * | |
| 110 | * @param string $name | |
| 111 | * @return list<array{name: string, type: string, nullable: bool, default: mixed, primaryKey: bool}> | |
| 112 | */ | |
| 113 | private function columns(string $name): array | |
| 114 | { | |
| 115 | $statement = $this->pdo->prepare( | |
| 116 | 'SELECT c.column_name, c.column_type, c.is_nullable, c.column_default, ' | |
| 117 | . '(c.column_key = \'PRI\') AS is_primary ' | |
| 118 | . 'FROM information_schema.columns c ' | |
| 119 | . 'WHERE c.table_schema = DATABASE() AND c.table_name = ? ' | |
| 120 | . 'ORDER BY c.ordinal_position', | |
| 121 | ); | |
| 122 | $statement->execute([$name]); | |
| 123 | ||
| 124 | $columns = []; | |
| 125 | ||
| 126 | /** @var array<string, mixed> $row */ | |
| 127 | foreach ($statement->fetchAll(\PDO::FETCH_ASSOC) as $row) { | |
| 128 | // Native prepares (EMULATE_PREPARES=false) report information_ | |
| 129 | // schema bare-column metadata in UPPERCASE — normalize so the | |
| 130 | // lowercase reads below work on every driver. | |
| 131 | $row = array_change_key_case($row, CASE_LOWER); | |
| 132 | $default = $row['column_default']; | |
| 133 | ||
| 134 | $columns[] = [ | |
| 135 | 'name' => (string) $row['column_name'], | |
| 136 | 'type' => $this->normalizeColumnType(strtolower((string) $row['column_type'])), | |
| 137 | 'nullable' => strtoupper((string) $row['is_nullable']) === 'YES', | |
| 138 | // MySQL reports CURRENT_TIMESTAMP (and other literals) as | |
| 139 | // strings; pass through as-is — the differ compares text. | |
| 140 | 'default' => $this->normalizeColumnDefault($default), | |
| 141 | 'primaryKey' => ((int) $row['is_primary']) === 1, | |
| 142 | ]; | |
| 143 | } | |
| 144 | ||
| 145 | return $columns; | |
| 146 | } | |
| 147 | ||
| 148 | /** | |
| 149 | * Normalize a live column type's dialect spelling. | |
| 150 | * | |
| 151 | * @param string $type | |
| 152 | * @return string | |
| 153 | */ | |
| 154 | protected function normalizeColumnType(string $type): string | |
| 155 | { | |
| 156 | return $type; | |
| 157 | } | |
| 158 | ||
| 159 | /** | |
| 160 | * Normalize a live column default's dialect spelling. | |
| 161 | * | |
| 162 | * @param mixed $default | |
| 163 | * @return mixed | |
| 164 | */ | |
| 165 | protected function normalizeColumnDefault(mixed $default): mixed | |
| 166 | { | |
| 167 | return $default; | |
| 168 | } | |
| 169 | ||
| 170 | /** | |
| 171 | * The live indexes, from `information_schema.statistics`. | |
| 172 | * | |
| 173 | * @param string $name | |
| 174 | * @return list<array{name: string|null, columns: list<string>, unique: bool, where: string|null, nullsNotDistinct: bool}> | |
| 175 | */ | |
| 176 | private function indexes(string $name): array | |
| 177 | { | |
| 178 | $statement = $this->pdo->prepare( | |
| 179 | 'SELECT index_name, column_name, non_unique, seq_in_index ' | |
| 180 | . 'FROM information_schema.statistics ' | |
| 181 | . 'WHERE table_schema = DATABASE() AND table_name = ? ' | |
| 182 | . 'ORDER BY index_name, seq_in_index', | |
| 183 | ); | |
| 184 | $statement->execute([$name]); | |
| 185 | ||
| 186 | /** @var list<array<string, mixed>> $rows */ | |
| 187 | $rows = $statement->fetchAll(\PDO::FETCH_ASSOC); | |
| 188 | ||
| 189 | $groups = []; | |
| 190 | ||
| 191 | foreach ($rows as $row) { | |
| 192 | // Native prepares report information_schema keys in UPPERCASE. | |
| 193 | $row = array_change_key_case($row, CASE_LOWER); | |
| 194 | $indexName = (string) $row['index_name']; | |
| 195 | ||
| 196 | // PRIMARY rides the columns' primaryKey flag, not the index list. | |
| 197 | if ($indexName === 'PRIMARY') { | |
| 198 | continue; | |
| 199 | } | |
| 200 | ||
| 201 | $groups[$indexName]['columns'][(int) $row['seq_in_index']] = (string) $row['column_name']; | |
| 202 | $groups[$indexName]['unique'] = ((int) $row['non_unique']) === 0; | |
| 203 | } | |
| 204 | ||
| 205 | $indexes = []; | |
| 206 | ||
| 207 | foreach ($groups as $indexName => $group) { | |
| 208 | $indexes[] = [ | |
| 209 | 'name' => $indexName, | |
| 210 | 'columns' => array_values($group['columns']), | |
| 211 | 'unique' => $group['unique'], | |
| 212 | 'where' => null, | |
| 213 | 'nullsNotDistinct' => false, | |
| 214 | ]; | |
| 215 | } | |
| 216 | ||
| 217 | return $indexes; | |
| 218 | } | |
| 219 | ||
| 220 | /** | |
| 221 | * The live foreign keys, from `information_schema.key_column_usage` + | |
| 222 | * `referential_constraints` (for the actions). | |
| 223 | * | |
| 224 | * @param string $name | |
| 225 | * @return list<array{columns: list<string>, referencesTable: string, referencesColumns: list<string>, onDelete: string|null, onUpdate: string|null, deferrable: bool, name: string}> | |
| 226 | */ | |
| 227 | private function foreignKeys(string $name): array | |
| 228 | { | |
| 229 | $statement = $this->pdo->prepare( | |
| 230 | 'SELECT kcu.constraint_name, kcu.column_name, kcu.referenced_table_name, ' | |
| 231 | . 'kcu.referenced_column_name, kcu.ordinal_position, ' | |
| 232 | . 'rc.delete_rule, rc.update_rule ' | |
| 233 | . 'FROM information_schema.key_column_usage kcu ' | |
| 234 | . 'JOIN information_schema.referential_constraints rc ' | |
| 235 | . 'ON rc.constraint_name = kcu.constraint_name ' | |
| 236 | . 'AND rc.constraint_schema = kcu.constraint_schema ' | |
| 237 | . 'WHERE kcu.table_schema = DATABASE() AND kcu.table_name = ? ' | |
| 238 | . 'AND kcu.referenced_table_name IS NOT NULL ' | |
| 239 | . 'ORDER BY kcu.constraint_name, kcu.ordinal_position', | |
| 240 | ); | |
| 241 | $statement->execute([$name]); | |
| 242 | ||
| 243 | /** @var list<array<string, mixed>> $rows */ | |
| 244 | $rows = $statement->fetchAll(\PDO::FETCH_ASSOC); | |
| 245 | ||
| 246 | $groups = []; | |
| 247 | ||
| 248 | foreach ($rows as $row) { | |
| 249 | // Native prepares report information_schema keys in UPPERCASE. | |
| 250 | $row = array_change_key_case($row, CASE_LOWER); | |
| 251 | $constraintName = (string) $row['constraint_name']; | |
| 252 | $groups[$constraintName]['columns'][] = (string) $row['column_name']; | |
| 253 | $groups[$constraintName]['referencesTable'] = (string) $row['referenced_table_name']; | |
| 254 | $groups[$constraintName]['referencesColumns'][(int) $row['ordinal_position']] = (string) $row['referenced_column_name']; | |
| 255 | $groups[$constraintName]['onDelete'] = $row['delete_rule']; | |
| 256 | $groups[$constraintName]['onUpdate'] = $row['update_rule']; | |
| 257 | } | |
| 258 | ||
| 259 | $constraints = []; | |
| 260 | ||
| 261 | foreach ($groups as $constraintName => $group) { | |
| 262 | $constraints[] = [ | |
| 263 | 'columns' => $group['columns'], | |
| 264 | 'referencesTable' => $group['referencesTable'], | |
| 265 | 'referencesColumns' => array_values($group['referencesColumns']), | |
| 266 | 'onDelete' => $this->normalizeAction($group['onDelete']), | |
| 267 | 'onUpdate' => $this->normalizeAction($group['onUpdate']), | |
| 268 | // MySQL has no DEFERRABLE — always false. | |
| 269 | 'deferrable' => false, | |
| 270 | // The live constraint name — the drop handle. | |
| 271 | 'name' => $constraintName, | |
| 272 | ]; | |
| 273 | } | |
| 274 | ||
| 275 | return $constraints; | |
| 276 | } | |
| 277 | ||
| 278 | /** | |
| 279 | * Normalize MySQL's referential-action text to a canonical value. | |
| 280 | * | |
| 281 | * @param mixed $action | |
| 282 | * @return string|null | |
| 283 | */ | |
| 284 | private function normalizeAction(mixed $action): ?string | |
| 285 | { | |
| 286 | $normalized = strtoupper(trim((string) $action)); | |
| 287 | ||
| 288 | return $normalized === 'NO ACTION' ? null : $normalized; | |
| 289 | } | |
| 290 | } |