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2024-05-18 02:28:01 +02:00
parent 9513cdba09
commit 9f30bc98c7
6149 changed files with 668407 additions and 0 deletions
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+<?php
+
+namespace Doctrine\DBAL\Platforms;
+
+use Doctrine\DBAL\Types\JsonType;
+use Doctrine\Deprecations\Deprecation;
+
+use function sprintf;
+
+/**
+ * Provides the behavior, features and SQL dialect of the MariaDB 10.4 (10.4.6 GA) database platform.
+ *
+ * Extend deprecated MariaDb1027Platform to ensure correct functions used in MySQLSchemaManager which
+ * tests for MariaDb1027Platform not MariaDBPlatform.
+ *
+ * @deprecated This class will be merged with {@see MariaDBPlatform} in 4.0 because support for MariaDB
+ *             releases prior to 10.4.3 will be dropped.
+ */
+class MariaDb1043Platform extends MariaDb1027Platform
+{
+    /**
+     * Use JSON rather than LONGTEXT for json columns. Since it is not a true native type, do not override
+     * hasNativeJsonType() so the DC2Type comment will still be set.
+     *
+     * {@inheritDoc}
+     */
+    public function getJsonTypeDeclarationSQL(array $column): string
+    {
+        return 'JSON';
+    }
+
+    /**
+     * {@inheritDoc}
+     *
+     * From version 10.4.3, MariaDb aliases JSON to LONGTEXT and adds a constraint CHECK (json_valid). Reverse
+     * this process when introspecting tables.
+     *
+     * @see https://mariadb.com/kb/en/information-schema-check_constraints-table/
+     * @see https://mariadb.com/kb/en/json-data-type/
+     * @see https://jira.mariadb.org/browse/MDEV-13916
+     */
+    public function getListTableColumnsSQL($table, $database = null): string
+    {
+        // @todo 4.0 - call getColumnTypeSQLSnippet() instead
+        [$columnTypeSQL, $joinCheckConstraintSQL] = $this->getColumnTypeSQLSnippets('c', $database);
+
+        return sprintf(
+            <<<SQL
+            SELECT c.COLUMN_NAME AS Field,
+                   $columnTypeSQL AS Type,
+                   c.IS_NULLABLE AS `Null`,
+                   c.COLUMN_KEY AS `Key`,
+                   c.COLUMN_DEFAULT AS `Default`,
+                   c.EXTRA AS Extra,
+                   c.COLUMN_COMMENT AS Comment,
+                   c.CHARACTER_SET_NAME AS CharacterSet,
+                   c.COLLATION_NAME AS Collation
+            FROM information_schema.COLUMNS c
+                $joinCheckConstraintSQL
+            WHERE c.TABLE_SCHEMA = %s
+            AND c.TABLE_NAME = %s
+            ORDER BY ORDINAL_POSITION ASC;
+            SQL
+            ,
+            $this->getDatabaseNameSQL($database),
+            $this->quoteStringLiteral($table),
+        );
+    }
+
+    /**
+     * Generate SQL snippets to reverse the aliasing of JSON to LONGTEXT.
+     *
+     * MariaDb aliases columns specified as JSON to LONGTEXT and sets a CHECK constraint to ensure the column
+     * is valid json. This function generates the SQL snippets which reverse this aliasing i.e. report a column
+     * as JSON where it was originally specified as such instead of LONGTEXT.
+     *
+     * The CHECK constraints are stored in information_schema.CHECK_CONSTRAINTS so query that table.
+     */
+    public function getColumnTypeSQLSnippet(string $tableAlias = 'c', ?string $databaseName = null): string
+    {
+        if ($this->getJsonTypeDeclarationSQL([]) !== 'JSON') {
+            return parent::getColumnTypeSQLSnippet($tableAlias, $databaseName);
+        }
+
+        if ($databaseName === null) {
+            Deprecation::trigger(
+                'doctrine/dbal',
+                'https://github.com/doctrine/dbal/pull/6215',
+                'Not passing a database name to methods "getColumnTypeSQLSnippet()", '
+                    . '"getColumnTypeSQLSnippets()", and "getListTableColumnsSQL()" of "%s" is deprecated.',
+                self::class,
+            );
+        }
+
+        $subQueryAlias = 'i_' . $tableAlias;
+
+        $databaseName = $this->getDatabaseNameSQL($databaseName);
+
+        // The check for `CONSTRAINT_SCHEMA = $databaseName` is mandatory here to prevent performance issues
+        return <<<SQL
+            IF(
+                $tableAlias.COLUMN_TYPE = 'longtext'
+                AND EXISTS(
+                    SELECT * from information_schema.CHECK_CONSTRAINTS $subQueryAlias
+                    WHERE $subQueryAlias.CONSTRAINT_SCHEMA = $databaseName
+                    AND $subQueryAlias.TABLE_NAME = $tableAlias.TABLE_NAME
+                    AND $subQueryAlias.CHECK_CLAUSE = CONCAT(
+                        'json_valid(`',
+                            $tableAlias.COLUMN_NAME,
+                        '`)'
+                    )
+                ),
+                'json',
+                $tableAlias.COLUMN_TYPE
+            )
+        SQL;
+    }
+
+    /** {@inheritDoc} */
+    public function getColumnDeclarationSQL($name, array $column)
+    {
+        // MariaDb forces column collation to utf8mb4_bin where the column was declared as JSON so ignore
+        // collation and character set for json columns as attempting to set them can cause an error.
+        if ($this->getJsonTypeDeclarationSQL([]) === 'JSON' && ($column['type'] ?? null) instanceof JsonType) {
+            unset($column['collation']);
+            unset($column['charset']);
+        }
+
+        return parent::getColumnDeclarationSQL($name, $column);
+    }
+}