feat(wiki support): Created the api and models for the Wiki endpoint for the gitlab API.

References #335

Author: Luc Morin

lib/Gitlab/Api/Wiki.php

@@ -0,0 +1,54 @@
+<?php namespace Gitlab\Api;
+
+class Wiki extends AbstractApi
+{
+
+    /**
+     * @param int $project_id
+     * @param array $params
+     * @return mixed
+     */
+    public function create($project_id, array $params)
+    {
+        return $this->post($this->getProjectPath($project_id, 'wikis'), $params);
+    }
+
+    /**
+     * @param int $project_id
+     * @param int $wiki_slug
+     * @return mixed
+     */
+    public function show($project_id, $wiki_slug)
+    {
+        return $this->get($this->getProjectPath($project_id, 'wikis/'.$this->encodePath($wiki_slug)));
+    }
+
+    /**
+     * @param int $project_id
+     * @return mixed
+     */
+    public function showAll($project_id)
+    {
+        return $this->get($this->getProjectPath($project_id, 'wikis'));
+    }
+
+    /**
+     * @param int $project_id
+     * @param array $params
+     * @return mixed
+     */
+    public function update($project_id, $wiki_slug, array $params)
+    {
+        return $this->put($this->getProjectPath($project_id, 'wikis/'.$this->encodePath($wiki_slug)), $params);
+    }
+
+    /**
+     * @param int $project_id
+     * @param int $wiki_slug
+     * @return mixed
+     */
+    public function remove($project_id, $wiki_slug)
+    {
+        return $this->delete($this->getProjectPath($project_id, 'wikis/'.$this->encodePath($wiki_slug)));
+    }
+}

lib/Gitlab/Client.php

@@ -305,6 +305,14 @@ public function schedules()
         return new Api\Schedules($this);
     }
 
+    /**
+     * @return Api\Wiki
+     */
+    public function wiki()
+    {
+        return new Api\Wiki($this);
+    }
+
     /**
      * @param string $name
      *
@@ -390,6 +398,9 @@ public function api($name)
             case 'schedules':
                 return $this->schedules();
 
+            case 'wiki':
+                return $this->wiki();
+
             default:
                 throw new InvalidArgumentException('Invalid endpoint: "'.$name.'"');
         }

lib/Gitlab/Model/Wiki.php

@@ -0,0 +1,73 @@
+<?php
+
+namespace Gitlab\Model;
+
+use Gitlab\Client;
+
+/**
+ * Class Wiki
+ *
+ * @property-read string $slug
+ * @property-read string $title
+ * @property-read string $format
+ * @property-read string $content
+ * @property-read Project $project
+ */
+class Wiki extends AbstractModel
+{
+    /**
+     * @var array
+     */
+    protected static $properties = array(
+        "slug",
+        "title",
+        "format",
+        "content",
+    );
+
+    /**
+     * @param Client  $client
+     * @param Project $project
+     * @param array   $data
+     * @return Wiki
+     */
+    public static function fromArray(Client $client, Project $project, array $data)
+    {
+        $wiki = new static($project, $data['id'], $client);
+
+        return $wiki->hydrate($data);
+    }
+
+    /**
+     * @param Project $project
+     * @param int $id
+     * @param Client  $client
+     */
+    public function __construct(Project $project, $id = null, Client $client = null)
+    {
+        $this->setClient($client);
+        $this->setData('project', $project);
+        $this->setData('id', $id);
+    }
+
+    /**
+     * @return Wiki
+     */
+    public function show()
+    {
+        $data = $this->client->wiki()->show($this->project->id, $this->id);
+
+        return static::fromArray($this->getClient(), $this->project, $data);
+    }
+
+    /**
+     * @param array $params
+     * @return Schedule
+     */
+    public function update(array $params)
+    {
+        $data = $this->client->wiki()->update($this->project->id, $this->id, $params);
+
+        return static::fromArray($this->getClient(), $this->project, $data);
+    }
+}