- WIP on Collation

src/Adapter/MySQL.php

@@ -150,6 +150,7 @@ class MySQL implements AdapterInterface, MigrateInterface, SqlAdapterInterface {
     public static function escapeIdentifier(string $segment, int $type) : string
     {
         switch($type) {
+            default:
             case static::IDENTIFIER_DATABASE:
             case static::IDENTIFIER_TABLE:
             case static::IDENTIFIER_FIELD:

src/Adapter/SQLite.php

@@ -2,9 +2,9 @@
 
 namespace Ulmus\Adapter;
 
+use Collator;
 use Ulmus\Common\PdoObject;
 use Ulmus\ConnectionAdapter;
-
 use Ulmus\Entity;
 use Ulmus\Migration\FieldDefinition;
 use Ulmus\{Migration\MigrateInterface, Repository, QueryBuilder};
@@ -37,6 +37,7 @@ class SQLite implements AdapterInterface, MigrateInterface, SqlAdapterInterface
             };
 
             $this->exportFunctions($pdo);
+            $this->exportCollations($pdo);
             $this->registerPragma($pdo, $this->pragmaBegin);
         }
         catch(\PDOException $ex){
@@ -196,6 +197,37 @@ class SQLite implements AdapterInterface, MigrateInterface, SqlAdapterInterface
         $pdo->sqliteCreateFunction('year', fn($date) => ( new \DateTime($date) )->format('Y'), 1);
     }
 
+
+    public function exportCollations(PdoObject $pdo) : void
+    {
+
+        if ( class_exists('Locale') ) {
+            # @TODO debug this, case-sensitivity not working properly !!
+            $collator = new Collator(\Locale::getDefault());
+            $collator->setStrength(Collator::TERTIARY);
+            $collator->setAttribute(Collator::NUMERIC_COLLATION, Collator::ON);
+
+            $pdo->sqliteCreateCollation('locale_cmp', fn($e1, $e2) => $collator->compare($e1, $e2));
+            $pdo->sqliteCreateCollation('locale_cmp_desc', fn($e1, $e2) => $collator->compare($e2, $e1));
+
+            $collatorCi = new Collator(\Locale::getDefault());
+            $collatorCi->setStrength(Collator::SECONDARY);
+            $collatorCi->setAttribute(Collator::NUMERIC_COLLATION, Collator::ON);
+
+            $pdo->sqliteCreateCollation('locale_cmp_ci', fn($e1, $e2) => $collatorCi->compare($e1, $e2));
+            $pdo->sqliteCreateCollation('locale_cmp_ci_desc', fn($e1, $e2) => $collatorCi->compare($e2, $e1));
+        }
+        else {
+            $comp = fn(string $e1, string $e2) => \iconv('UTF-8', 'ASCII//TRANSLIT', $e1) <=> \iconv('UTF-8', 'ASCII//TRANSLIT', $e2);
+            $pdo->sqliteCreateCollation('locale_cmp', fn($e1, $e2) => $comp);
+            $pdo->sqliteCreateCollation('locale_cmp_desc', fn($e2, $e1) => $comp);
+
+            $compCi = fn(string $e1, string $e2) => strtoupper(\iconv('UTF-8', 'ASCII//TRANSLIT', $e1)) <=> strtoupper(\iconv('UTF-8', 'ASCII//TRANSLIT', $e2));
+            $pdo->sqliteCreateCollation('locale_cmp_ci', fn($e1, $e2) => $compCi);
+            $pdo->sqliteCreateCollation('locale_cmp_ci_desc', fn($e2, $e1) => $compCi);
+        }
+    }
+
     public static function registerPragma(PdoObject $pdo, array $pragmaList) : void
     {
         $builder = new QueryBuilder\Sql\SqliteQueryBuilder();