diff --git a/application/modules/opac/controllers/DatasController.php b/application/modules/opac/controllers/DatasController.php
new file mode 100644
index 0000000000000000000000000000000000000000..4b520a76a03ac5e9f16eba3d640cca08d5a5b313
--- /dev/null
+++ b/application/modules/opac/controllers/DatasController.php
@@ -0,0 +1,41 @@
+<?php
+/**
+ * Copyright (c) 2012-2014, Agence Française Informatique (AFI). All rights reserved.
+ *
+ * AFI-OPAC 2.0 is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE as published by
+ * the Free Software Foundation.
+ *
+ * There are special exceptions to the terms and conditions of the AGPL as it
+ * is applied to this software (see README file).
+ *
+ * AFI-OPAC 2.0 is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU AFFERO GENERAL PUBLIC LICENSE for more details.
+ *
+ * You should have received a copy of the GNU AFFERO GENERAL PUBLIC LICENSE
+ * along with AFI-OPAC 2.0; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA 
+ */
+
+
+class DatasController extends Zend_Controller_Action {
+	public function fieldsAction() {
+		$this->_json(Class_CustomField::findAllBy(['model' => $this->_getParam('model', '')]));
+	}
+
+
+	public function valuesAction() {
+		$this->_json(Class_CustomField_Value::findAllBy(['custom_field_id' => $this->_getParam('field', 0)]));
+	}
+
+
+	protected function _json($values) {
+		$response = [];
+		foreach ($values as $value)
+			$response[] = $value->toArray();
+		$this->_helper->json($response);
+	}
+}
+?>
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diff --git a/tests/application/modules/opac/controllers/DatasControllerTest.php b/tests/application/modules/opac/controllers/DatasControllerTest.php
new file mode 100644
index 0000000000000000000000000000000000000000..99838ce497d46bfe3ee0cb997d57d71b2a2114a9
--- /dev/null
+++ b/tests/application/modules/opac/controllers/DatasControllerTest.php
@@ -0,0 +1,56 @@
+<?php
+/**
+ * Copyright (c) 2012-2014, Agence Française Informatique (AFI). All rights reserved.
+ *
+ * AFI-OPAC 2.0 is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE as published by
+ * the Free Software Foundation.
+ *
+ * There are special exceptions to the terms and conditions of the AGPL as it
+ * is applied to this software (see README file).
+ *
+ * AFI-OPAC 2.0 is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU AFFERO GENERAL PUBLIC LICENSE for more details.
+ *
+ * You should have received a copy of the GNU AFFERO GENERAL PUBLIC LICENSE
+ * along with AFI-OPAC 2.0; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA 
+ */
+
+
+class DatasControllerTest extends AbstractControllerTestCase {
+	public function setUp() {
+		parent::setUp();
+		$this->fixture('Class_CustomField', [
+			'id' => 19,
+			'model' => 'SessionFormation',
+			'meta' => $this->fixture('Class_CustomField_Meta', ['id' => 1, 'label' => 'thématique'])]);
+
+		$this->fixture('Class_CustomField_Value', [
+			'id' => 23,
+			'custom_field_id' => 19,
+			'value' => 'Macramé'
+		]);
+	}
+
+
+	/** @test */
+	public function fieldsOfSessionFormationShouldReturnJson() {
+		$this->dispatch('/opac/datas/fields/model/SessionFormation');
+		$this->assertEquals(
+			'[{"priority":0,"id":19,"model":"SessionFormation","meta_id":1,"label":"th\u00e9matique","field_type":"text","options_list":""}]', 
+			$this->_response->getBody());
+	}
+
+
+	/** @test */
+	public function valuesOfFieldThematiqueShouldReturnJson() {
+		$this->dispatch('/opac/datas/values/field/19');
+		$this->assertEquals(
+			'[{"value":"Macram\u00e9","id":23,"custom_field_id":19}]', 
+			$this->_response->getBody());
+	}
+}
+?>
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