From ab081cc992c04ab92e282ffbd82709cc399af30e Mon Sep 17 00:00:00 2001
From: weryques <weryques@outlook.com>
Date: Thu, 18 Jan 2018 10:45:31 -0200
Subject: [PATCH] Fetch all terms of a taxonomy

---
 .../class-tainacan-rest-terms-controller.php  | 62 +++++++++++++++++++
 tests/test-api-terms.php                      | 53 ++++++++++++++++
 2 files changed, 115 insertions(+)

diff --git a/src/api/endpoints/class-tainacan-rest-terms-controller.php b/src/api/endpoints/class-tainacan-rest-terms-controller.php
index 50df280d2..897611d4c 100644
--- a/src/api/endpoints/class-tainacan-rest-terms-controller.php
+++ b/src/api/endpoints/class-tainacan-rest-terms-controller.php
@@ -31,6 +31,11 @@ class TAINACAN_REST_Terms_Controller extends WP_REST_Controller {
 					'methods'             => WP_REST_Server::CREATABLE,
 					'callback'            => array($this, 'create_item'),
 					'permission_callback' => array($this, 'create_item_permissions_check')
+				),
+				array(
+					'methods'             => WP_REST_Server::READABLE,
+					'callback'            => array($this, 'get_items'),
+					'permission_callback' => array($this, 'get_items_permissions_check')
 				)
 			)
 		);
@@ -196,6 +201,63 @@ class TAINACAN_REST_Terms_Controller extends WP_REST_Controller {
 		$term = new Entities\Term($this->terms_repository->fetch($request['term_id']));
 		return $this->terms_repository->can_edit($term);
 	}
+
+	/**
+	 * @param mixed $item
+	 * @param WP_REST_Request $request
+	 *
+	 * @return array|mixed|WP_Error|WP_REST_Response
+	 */
+	public function prepare_item_for_response( $item, $request ) {
+
+		if(is_array($item)){
+			$prepared = [];
+
+			foreach ($item as $term){
+				$prepared[] = $term->__toArray();
+			}
+
+			return $prepared;
+		}
+
+		return $item;
+	}
+
+	/**
+	 * @param WP_REST_Request $request
+	 *
+	 * @return WP_Error|WP_REST_Response
+	 */
+	public function get_items( $request ) {
+		$taxonomy_id = $request['taxonomy_id'];
+
+		$taxonomy = $this->taxonomy_repository->fetch($taxonomy_id);
+
+		if(!empty($taxonomy)){
+			$args = json_decode($request->get_body(), true);
+
+			$terms = $this->terms_repository->fetch($args, $taxonomy);
+
+			$prepared_terms = $this->prepare_item_for_response($terms, $request);
+
+			return new WP_REST_Response($prepared_terms, 200);
+		}
+
+		return new WP_REST_Response([
+			'error_message' => "Taxonomy with this id ($taxonomy_id) not found.",
+			'taxonomy_id'   => $taxonomy_id
+		], 400);
+	}
+
+	/**
+	 * @param WP_REST_Request $request
+	 *
+	 * @return bool|WP_Error
+	 */
+	public function get_items_permissions_check( $request ) {
+		$taxonomy = $this->taxonomy_repository->fetch($request['taxonomy_id']);
+		return $this->taxonomy_repository->can_read($taxonomy);
+	}
 }
 
 ?>
\ No newline at end of file
diff --git a/tests/test-api-terms.php b/tests/test-api-terms.php
index b434c6dc7..1abedf0e7 100644
--- a/tests/test-api-terms.php
+++ b/tests/test-api-terms.php
@@ -112,6 +112,59 @@ class TAINACAN_REST_Terms extends TAINACAN_UnitApiTestCase {
 
 		$this->assertEquals($taxonomy->get_db_identifier(), $data['taxonomy']);
 	}
+
+	public function test_fetch_terms(){
+		$taxonomy = $this->tainacan_entity_factory->create_entity(
+			'taxonomy',
+			array(
+				'name'         => 'Gender',
+				'description'  => 'Music types',
+				'allow_insert' => 'yes',
+				'status'       => 'publish'
+			),
+			true
+		);
+
+		$this->tainacan_entity_factory->create_entity(
+			'term',
+			array(
+				'taxonomy' => $taxonomy->get_db_identifier(),
+				'name'     => 'Rock',
+				'user'     => get_current_user_id(),
+			),
+			true
+		);
+
+		$this->tainacan_entity_factory->create_entity(
+			'term',
+			array(
+				'taxonomy' => $taxonomy->get_db_identifier(),
+				'name'     => 'Trap',
+				'user'     => get_current_user_id(),
+			),
+			true
+		);
+
+		$show_empty = json_encode([
+			'hide_empty' => false
+		]);
+
+		$request = new \WP_REST_Request(
+			'GET', $this->namespace . '/terms/taxonomy/' . $taxonomy->get_id()
+		);
+
+		$request->set_body($show_empty);
+
+		$response = $this->server->dispatch($request);
+
+		$data = $response->get_data();
+
+		$termA = $data[0];
+		$termB = $data[1];
+
+		$this->assertEquals('Trap', $termB['name']);
+		$this->assertEquals('Rock', $termA['name']);
+	}
 }
 
 ?>
\ No newline at end of file