Initial xentral_oss_20.3.c9ffacf

2021-05-21 08:49:41 +02:00
parent 5406e4a551
commit 34e5ac43d9
18884 changed files with 2109867 additions and 0 deletions
@@ -0,0 +1,72 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Xentral\Components\SchemaCreator\LineGenerator\Common;
+
+use Xentral\Components\Database\Database;
+use Xentral\Components\Database\Exception\QueryFailureException;
+use Xentral\Components\SchemaCreator\Exception\LineGeneratorException;
+
+final class ConstraintLineGenerator
+{
+    /** @var Database $db */
+    private $db;
+
+    /**
+     * @param Database $db
+     */
+    public function __construct(Database $db)
+    {
+        $this->db = $db;
+    }
+
+    /**
+     * @param string $tableName
+     *
+     * @throws LineGeneratorException
+     *
+     * @return array
+     */
+    public function fetchConstraintsFromDb(string $tableName): array
+    {
+        try {
+            $dbName = $this->db->fetchValue('SELECT DATABASE()');
+            $constraints = $this->db->fetchAll(
+                sprintf(
+                    "SELECT `COLUMN_NAME`, `REFERENCED_TABLE_NAME`, 
+                    `REFERENCED_COLUMN_NAME`, `CONSTRAINT_NAME` 
+                    FROM `information_schema`.`key_column_usage` 
+                    WHERE `referenced_table_name` IS NOT NULL AND `TABLE_SCHEMA` = '%s' AND `TABLE_NAME` = '%s' ",
+                    $dbName,
+                    $tableName
+
+                )
+            );
+        } catch (QueryFailureException $exception) {
+            throw new LineGeneratorException(
+                $exception->getMessage(), $exception->getCode(), $exception->getPrevious()
+            );
+        }
+        $result = [];
+
+        foreach ($constraints as $constraint) {
+            $constraintName = $constraint['CONSTRAINT_NAME'];
+            $resultKey = array_search($constraintName, array_column($result, 'name'), true);
+            if ($resultKey !== false) {
+                $result[$resultKey]['columns'][] = $constraint['COLUMN_NAME'];
+                $result[$resultKey]['reference_columns'][] = $constraint['COLUMN_NAME'];
+                continue;
+            }
+
+            $result[] = [
+                'name'              => $constraint['CONSTRAINT_NAME'],
+                'reference_table'   => $constraint['REFERENCED_TABLE_NAME'],
+                'reference_columns' => [$constraint['REFERENCED_COLUMN_NAME']],
+                'columns'           => [$constraint['COLUMN_NAME']],
+            ];
+        }
+
+        return $result;
+    }
+}