Fix mapping issue for aliases #588

changes.txt

@@ -4,6 +4,7 @@ CHANGES
 - Update to elasticsearch 1.1.1 http://www.elasticsearch.org/downloads/1-1-1/
 - Remove CustomFiltersScore and CustomScore query as removed in elasticsearch 1.1.0 https://github.com/elasticsearch/elasticsearch/pull/5076/files
 - Update Node Info to use plugins instead of plugin (https://github.com/elasticsearch/elasticsearch/pull/5072)
+- Fix mapping issue for aliases #588
 
 2014-04-17
 - Only trap real JSON parse errors in Response class #586

lib/Elastica/Index.php

@@ -94,8 +94,12 @@ public function getMapping()
 
         $response = $this->request($path, Request::GET);
         $data = $response->getData();
-        if (isset($data[$this->getName()]['mappings'])) {
-            return $data[$this->getName()]['mappings'];
+
+        // Get first entry as if index is an Alias, the name of the mapping is the real name and not alias name
+        $mapping = array_shift($data);
+
+        if (isset($mapping['mappings'])) {
+            return $mapping['mappings'];
         }
 
         return array();

test/lib/Elastica/Test/TypeTest.php

@@ -771,6 +771,37 @@ public function testExists()
         $index->delete();
         $this->assertFalse($index->exists());
     }
+
+    public function testGetMappingAlias() {
+
+        $indexName = 'test-mapping';
+        $aliasName = 'test-mapping-alias';
+
+        $index = $this->_createIndex($indexName);
+        $indexName = $index->getName();
+        $index->addAlias($aliasName);
+
+        $type = new Type($index, 'test');
+        $mapping = new Mapping($type, array(
+                'id' => array('type' => 'integer', 'store' => 'yes'),
+            ));
+        $type->setMapping($mapping);
+
+        $client = $index->getClient();
+
+        // Index mapping
+        $mapping1 = $client->getIndex($indexName)->getMapping();
+
+        // Alias mapping
+        $mapping2 = $client->getIndex($aliasName)->getMapping();
+
+        // Make sure, a mapping is set
+        $this->assertNotEmpty($mapping1);
+
+        // Alias and index mapping should be identical
+        $this->assertEquals($mapping1, $mapping2);
+
+    }
 }
 
 class SerializerMock