Added deleteAllGraphs (#40)

Author: LaravelFreelancerNL

docs/schema-graphs.md

@@ -44,6 +44,13 @@ $arangoClient->schema()->hasGraph('relations');
 $arangoClient->schema()->deleteGraph('locations');
 ```
 
+###  deleteAllGraphs(): bool
+This method deletes all named graphs available on the current database.
+
+```
+$arangoClient->schema()->deleteAllGraphs();
+```
+
 ###  getGraphVertices(string $name): array
 ```
 $arangoClient->schema()->getGraphVertices('relations');

src/Schema/ManagesGraphs.php

@@ -92,6 +92,20 @@ public function deleteGraph(string $name): bool
         return (bool) $this->arangoClient->request('delete', $uri);
     }
 
+    /**
+     * @throws ArangoException
+     */
+    public function deleteAllGraphs(): bool
+    {
+        $graphs = $this->getGraphs();
+
+        foreach ($graphs as $graph) {
+            $this->deleteGraph($graph->name);
+        }
+
+        return true;
+    }
+
     /**
      * @see https://www.arangodb.com/docs/stable/http/gharial-management.html#list-vertex-collections
      *

tests/SchemaManagerGraphsTest.php

@@ -331,3 +331,18 @@
     $this->schemaManager->deleteCollection('characters');
     $this->schemaManager->deleteCollection('vassals');
 });
+
+test('deleteAllGraphs', function () {
+    $result = $this->schemaManager->createGraph('graph1', [], true);
+    $result = $this->schemaManager->createGraph('graph2', [], true);
+
+    $createdGraphs = $this->schemaManager->getGraphs();
+
+    $result = $this->schemaManager->deleteAllGraphs();
+
+    $finalGraphs = $this->schemaManager->getGraphs();
+
+    expect($result)->toBeTrue();
+    expect(count($createdGraphs))->toBe(2);
+    expect(count($finalGraphs))->toBe(0);
+})->only();