diff --git a/app/Caches/Chapter.php b/app/Caches/Chapter.php
index 4166fc96..2b8cb436 100644
--- a/app/Caches/Chapter.php
+++ b/app/Caches/Chapter.php
@@ -25,11 +25,7 @@ class Chapter extends Cache
 
         $chapter = $chapterRepo->findById($id);
 
-        if (!$chapter) {
-            return new \stdClass();
-        }
-
-        return $chapter;
+        return $chapter ?: null;
     }
 
 }
diff --git a/app/Caches/ChapterCounter.php b/app/Caches/ChapterCounter.php
index c3f840c9..3d928275 100644
--- a/app/Caches/ChapterCounter.php
+++ b/app/Caches/ChapterCounter.php
@@ -7,7 +7,7 @@ use App\Repos\Chapter as ChapterRepo;
 class ChapterCounter extends Counter
 {
 
-    protected $lifetime = 7 * 86400;
+    protected $lifetime = 1 * 86400;
 
     public function getLifetime()
     {
diff --git a/app/Caches/Course.php b/app/Caches/Course.php
index f353b063..b29c555f 100644
--- a/app/Caches/Course.php
+++ b/app/Caches/Course.php
@@ -25,11 +25,9 @@ class Course extends Cache
 
         $course = $courseRepo->findById($id);
 
-        $course->cover = kg_ci_img_url($course->cover);
+        if (!$course) return null;
 
-        if (!$course) {
-            return new \stdClass();
-        }
+        $course->cover = kg_ci_img_url($course->cover);
 
         return $course;
     }
diff --git a/app/Caches/CourseCounter.php b/app/Caches/CourseCounter.php
index bed56542..8270ff3f 100644
--- a/app/Caches/CourseCounter.php
+++ b/app/Caches/CourseCounter.php
@@ -7,7 +7,7 @@ use App\Repos\Course as CourseRepo;
 class CourseCounter extends Counter
 {
 
-    protected $lifetime = 7 * 86400;
+    protected $lifetime = 1 * 86400;
 
     public function getLifetime()
     {
diff --git a/app/Caches/CoursePackageList.php b/app/Caches/CoursePackageList.php
index 2f59296b..f3574e5f 100644
--- a/app/Caches/CoursePackageList.php
+++ b/app/Caches/CoursePackageList.php
@@ -4,8 +4,6 @@ namespace App\Caches;
 
 use App\Models\Package as PackageModel;
 use App\Repos\Course as CourseRepo;
-use App\Repos\Package as PackageRepo;
-use Phalcon\Mvc\Model\Resultset;
 
 class CoursePackageList extends Cache
 {
@@ -28,68 +26,27 @@ class CoursePackageList extends Cache
 
         $packages = $courseRepo->findPackages($id);
 
-        return $this->handleContent($packages);
-    }
-
-    /**
-     * @param Resultset|PackageModel[] $packages
-     * @return array
-     */
-    protected function handleContent($packages)
-    {
         if ($packages->count() == 0) {
             return [];
         }
 
+        return $this->handleContent($packages);
+    }
+
+    /**
+     * @param PackageModel[] $packages
+     * @return array
+     */
+    protected function handleContent($packages)
+    {
         $result = [];
 
         foreach ($packages as $package) {
-
-            $courses = $this->getPackageCourses($package->id);
-
             $result[] = [
                 'id' => $package->id,
                 'title' => $package->title,
                 'market_price' => $package->market_price,
                 'vip_price' => $package->vip_price,
-                'courses' => $courses,
-            ];
-        }
-
-        return $result;
-    }
-
-    protected function getPackageCourses($packageId)
-    {
-        $packageRepo = new PackageRepo();
-
-        $courses = $packageRepo->findCourses($packageId);
-
-        if ($courses->count() == 0) {
-            return [];
-        }
-
-        $result = [];
-
-        $baseUrl = kg_ci_base_url();
-
-        foreach ($courses as $course) {
-
-            $course->cover = $baseUrl . $course->cover;
-
-            $result[] = [
-                'id' => $course->id,
-                'title' => $course->title,
-                'cover' => $course->cover,
-                'summary' => $course->summary,
-                'market_price' => $course->market_price,
-                'vip_price' => $course->vip_price,
-                'model' => $course->model,
-                'level' => $course->level,
-                'user_count' => $course->user_count,
-                'lesson_count' => $course->lesson_count,
-                'review_count' => $course->review_count,
-                'favorite_count' => $course->favorite_count,
             ];
         }
 
diff --git a/app/Caches/MaxCategoryId.php b/app/Caches/MaxCategoryId.php
new file mode 100644
index 00000000..dfc4fa4f
--- /dev/null
+++ b/app/Caches/MaxCategoryId.php
@@ -0,0 +1,29 @@
+<?php
+
+namespace App\Caches;
+
+use App\Models\Category as CategoryModel;
+
+class MaxCategoryId extends Cache
+{
+
+    protected $lifetime = 365 * 86400;
+
+    public function getLifetime()
+    {
+        return $this->lifetime;
+    }
+
+    public function getKey($id = null)
+    {
+        return 'max_category_id';
+    }
+
+    public function getContent($id = null)
+    {
+        $category = CategoryModel::findFirst(['order' => 'id DESC']);
+
+        return $category->id ?? 0;
+    }
+
+}
diff --git a/app/Caches/MaxChapterId.php b/app/Caches/MaxChapterId.php
index 4e2167a8..e751dfe8 100644
--- a/app/Caches/MaxChapterId.php
+++ b/app/Caches/MaxChapterId.php
@@ -23,7 +23,7 @@ class MaxChapterId extends Cache
     {
         $chapter = ChapterModel::findFirst(['order' => 'id DESC']);
 
-        return $chapter->id;
+        return $chapter->id ?? 0;
     }
 
 }
diff --git a/app/Caches/MaxCourseId.php b/app/Caches/MaxCourseId.php
index bbcc41eb..6f8b350c 100644
--- a/app/Caches/MaxCourseId.php
+++ b/app/Caches/MaxCourseId.php
@@ -23,7 +23,7 @@ class MaxCourseId extends Cache
     {
         $course = CourseModel::findFirst(['order' => 'id DESC']);
 
-        return $course->id;
+        return $course->id ?? 0;
     }
 
 }
diff --git a/app/Caches/MaxPackageId.php b/app/Caches/MaxPackageId.php
new file mode 100644
index 00000000..b5252a4c
--- /dev/null
+++ b/app/Caches/MaxPackageId.php
@@ -0,0 +1,29 @@
+<?php
+
+namespace App\Caches;
+
+use App\Models\Package as PackageModel;
+
+class MaxPackageId extends Cache
+{
+
+    protected $lifetime = 365 * 86400;
+
+    public function getLifetime()
+    {
+        return $this->lifetime;
+    }
+
+    public function getKey($id = null)
+    {
+        return 'max_package_id';
+    }
+
+    public function getContent($id = null)
+    {
+        $package = PackageModel::findFirst(['order' => 'id DESC']);
+
+        return $package->id ?? 0;
+    }
+
+}
diff --git a/app/Caches/MaxTopicId.php b/app/Caches/MaxTopicId.php
new file mode 100644
index 00000000..3c739d7a
--- /dev/null
+++ b/app/Caches/MaxTopicId.php
@@ -0,0 +1,29 @@
+<?php
+
+namespace App\Caches;
+
+use App\Models\Topic as TopicModel;
+
+class MaxTopicId extends Cache
+{
+
+    protected $lifetime = 365 * 86400;
+
+    public function getLifetime()
+    {
+        return $this->lifetime;
+    }
+
+    public function getKey($id = null)
+    {
+        return 'max_topic_id';
+    }
+
+    public function getContent($id = null)
+    {
+        $topic = TopicModel::findFirst(['order' => 'id DESC']);
+
+        return $topic->id ?? 0;
+    }
+
+}
diff --git a/app/Caches/MaxUserId.php b/app/Caches/MaxUserId.php
index 2724c06c..7109382b 100644
--- a/app/Caches/MaxUserId.php
+++ b/app/Caches/MaxUserId.php
@@ -21,9 +21,9 @@ class MaxUserId extends Cache
 
     public function getContent($id = null)
     {
-        $course = UserModel::findFirst(['order' => 'id DESC']);
+        $user = UserModel::findFirst(['order' => 'id DESC']);
 
-        return $course->id;
+        return $user->id ?? 0;
     }
 
 }
diff --git a/app/Caches/Package.php b/app/Caches/Package.php
new file mode 100644
index 00000000..512e9ccc
--- /dev/null
+++ b/app/Caches/Package.php
@@ -0,0 +1,31 @@
+<?php
+
+namespace App\Caches;
+
+use App\Repos\Package as PackageRepo;
+
+class Package extends Cache
+{
+
+    protected $lifetime = 7 * 86400;
+
+    public function getLifetime()
+    {
+        return $this->lifetime;
+    }
+
+    public function getKey($id = null)
+    {
+        return "package:{$id}";
+    }
+
+    public function getContent($id = null)
+    {
+        $packageRepo = new PackageRepo();
+
+        $package = $packageRepo->findById($id);
+
+        return $package ?: null;
+    }
+
+}
diff --git a/app/Caches/PackageCourseList.php b/app/Caches/PackageCourseList.php
new file mode 100644
index 00000000..c78f7b6a
--- /dev/null
+++ b/app/Caches/PackageCourseList.php
@@ -0,0 +1,57 @@
+<?php
+
+namespace App\Caches;
+
+use App\Models\Course as CourseModel;
+use App\Repos\Package as PackageRepo;
+
+class PackageCourseList extends Cache
+{
+
+    protected $lifetime = 1 * 86400;
+
+    public function getLifetime()
+    {
+        return $this->lifetime;
+    }
+
+    public function getKey($id = null)
+    {
+        return "package_course_list:{$id}";
+    }
+
+    public function getContent($id = null)
+    {
+        $packageRepo = new PackageRepo();
+
+        $courses = $packageRepo->findCourses($id);
+
+        if ($courses->count() == 0) {
+            return [];
+        }
+
+        return $this->handleContent($courses);
+    }
+
+    /**
+     * @param CourseModel[] $courses
+     * @return array
+     */
+    public function handleContent($courses)
+    {
+        $result = [];
+
+        foreach ($courses as $course) {
+            $result[] = [
+                'id' => $course->id,
+                'title' => $course->title,
+                'cover' => $course->cover,
+                'market_price' => $course->market_price,
+                'vip_price' => $course->vip_price,
+            ];
+        }
+
+        return $result;
+    }
+
+}
diff --git a/app/Caches/Topic.php b/app/Caches/Topic.php
new file mode 100644
index 00000000..a77c9d92
--- /dev/null
+++ b/app/Caches/Topic.php
@@ -0,0 +1,31 @@
+<?php
+
+namespace App\Caches;
+
+use App\Repos\Topic as TopicRepo;
+
+class Topic extends Cache
+{
+
+    protected $lifetime = 7 * 86400;
+
+    public function getLifetime()
+    {
+        return $this->lifetime;
+    }
+
+    public function getKey($id = null)
+    {
+        return "topic:{$id}";
+    }
+
+    public function getContent($id = null)
+    {
+        $topicRepo = new TopicRepo();
+
+        $topic = $topicRepo->findById($id);
+
+        return $topic ?: null;
+    }
+
+}
diff --git a/app/Caches/TopicCourseList.php b/app/Caches/TopicCourseList.php
new file mode 100644
index 00000000..b09328b4
--- /dev/null
+++ b/app/Caches/TopicCourseList.php
@@ -0,0 +1,57 @@
+<?php
+
+namespace App\Caches;
+
+use App\Models\Course as CourseModel;
+use App\Repos\Topic as TopicRepo;
+
+class TopicCourseList extends Cache
+{
+
+    protected $lifetime = 1 * 86400;
+
+    public function getLifetime()
+    {
+        return $this->lifetime;
+    }
+
+    public function getKey($id = null)
+    {
+        return "topic_course_list:{$id}";
+    }
+
+    public function getContent($id = null)
+    {
+        $topicRepo = new TopicRepo();
+
+        $courses = $topicRepo->findCourses($id);
+
+        if ($courses->count() == 0) {
+            return [];
+        }
+
+        return $this->handleContent($courses);
+    }
+
+    /**
+     * @param CourseModel[] $courses
+     * @return array
+     */
+    public function handleContent($courses)
+    {
+        $result = [];
+
+        foreach ($courses as $course) {
+            $result[] = [
+                'id' => $course->id,
+                'title' => $course->title,
+                'cover' => $course->cover,
+                'market_price' => $course->market_price,
+                'vip_price' => $course->vip_price,
+            ];
+        }
+
+        return $result;
+    }
+
+}
diff --git a/app/Caches/User.php b/app/Caches/User.php
index dd4be9b1..20e2fa95 100644
--- a/app/Caches/User.php
+++ b/app/Caches/User.php
@@ -7,7 +7,7 @@ use App\Repos\User as UserRepo;
 class User extends Cache
 {
 
-    protected $lifetime = 7 * 86400;
+    protected $lifetime = 1 * 86400;
 
     public function getLifetime()
     {
@@ -25,11 +25,7 @@ class User extends Cache
 
         $user = $userRepo->findById($id);
 
-        if (!$user) {
-            return new \stdClass();
-        }
-
-        return $user;
+        return $user ?: null;
     }
 
 }
diff --git a/app/Http/Admin/Services/Package.php b/app/Http/Admin/Services/Package.php
index e3df0de4..e510fc7c 100644
--- a/app/Http/Admin/Services/Package.php
+++ b/app/Http/Admin/Services/Package.php
@@ -2,6 +2,8 @@
 
 namespace App\Http\Admin\Services;
 
+use App\Caches\Package as PackageCache;
+use App\Caches\PackageCourseList as PackageCourseListCache;
 use App\Library\Paginator\Query as PagerQuery;
 use App\Models\CoursePackage as CoursePackageModel;
 use App\Models\Package as PackageModel;
@@ -9,6 +11,7 @@ use App\Repos\Course as CourseRepo;
 use App\Repos\CoursePackage as CoursePackageRepo;
 use App\Repos\Package as PackageRepo;
 use App\Validators\Package as PackageValidator;
+use Yansongda\Supports\Collection;
 
 class Package extends Service
 {
@@ -50,6 +53,8 @@ class Package extends Service
 
         $package->create($data);
 
+        $this->rebuildPackageCache($package);
+
         return $package;
     }
 
@@ -91,6 +96,8 @@ class Package extends Service
 
         $this->updateCourseCount($package);
 
+        $this->rebuildPackageCache($package);
+
         return $package;
     }
 
@@ -102,6 +109,8 @@ class Package extends Service
 
         $package->update();
 
+        $this->rebuildPackageCache($package);
+
         return $package;
     }
 
@@ -113,6 +122,8 @@ class Package extends Service
 
         $package->update();
 
+        $this->rebuildPackageCache($package);
+
         return $package;
     }
 
@@ -141,11 +152,10 @@ class Package extends Service
         $sgtMarketPrice = sprintf('%0.2f', intval($totalMarketPrice * 0.9));
         $sgtVipPrice = sprintf('%0.2f', intval($totalVipPrice * 0.8));
 
-        $price = new \stdClass();
-        $price->market_price = $sgtMarketPrice;
-        $price->vip_price = $sgtVipPrice;
-
-        return $price;
+        return new Collection([
+            'market_price' => $sgtMarketPrice,
+            'vip_price' => $sgtVipPrice,
+        ]);
     }
 
     public function getXmCourses($id)
@@ -220,6 +230,17 @@ class Package extends Service
         $package->update();
     }
 
+    protected function rebuildPackageCache(PackageModel $package)
+    {
+        $cache = new PackageCache();
+
+        $cache->rebuild($package->id);
+
+        $cache = new PackageCourseListCache();
+
+        $cache->rebuild($package->id);
+    }
+
     protected function findOrFail($id)
     {
         $validator = new PackageValidator();
diff --git a/app/Http/Admin/Services/Topic.php b/app/Http/Admin/Services/Topic.php
index 2c504df8..ac8289bf 100644
--- a/app/Http/Admin/Services/Topic.php
+++ b/app/Http/Admin/Services/Topic.php
@@ -2,6 +2,8 @@
 
 namespace App\Http\Admin\Services;
 
+use App\Caches\Topic as TopicCache;
+use App\Caches\TopicCourseList as TopicCourseListCache;
 use App\Library\Paginator\Query as PagerQuery;
 use App\Models\CourseTopic as CourseTopicModel;
 use App\Models\Topic as TopicModel;
@@ -49,6 +51,8 @@ class Topic extends Service
 
         $topic->create($data);
 
+        $this->rebuildTopicCache($topic);
+
         return $topic;
     }
 
@@ -82,6 +86,8 @@ class Topic extends Service
 
         $this->updateCourseCount($topic);
 
+        $this->rebuildTopicCache($topic);
+
         return $topic;
     }
 
@@ -93,6 +99,8 @@ class Topic extends Service
 
         $topic->update();
 
+        $this->rebuildTopicCache($topic);
+
         return $topic;
     }
 
@@ -104,6 +112,8 @@ class Topic extends Service
 
         $topic->update();
 
+        $this->rebuildTopicCache($topic);
+
         return $topic;
     }
 
@@ -179,6 +189,17 @@ class Topic extends Service
         $topic->update();
     }
 
+    protected function rebuildTopicCache(TopicModel $topic)
+    {
+        $cache = new TopicCache();
+
+        $cache->rebuild($topic->id);
+
+        $cache = new TopicCourseListCache();
+
+        $cache->rebuild($topic->id);
+    }
+
     protected function findOrFail($id)
     {
         $validator = new TopicValidator();
diff --git a/app/Http/Admin/Views/course/edit_basic.volt b/app/Http/Admin/Views/course/edit_basic.volt
index 3556b3d9..49cbe2de 100644
--- a/app/Http/Admin/Views/course/edit_basic.volt
+++ b/app/Http/Admin/Views/course/edit_basic.volt
@@ -11,11 +11,11 @@
         <label class="layui-form-label">封面</label>
         <div class="layui-input-inline">
             {% if course.cover %}
-                <img id="cover-img" class="kg-cover" src="{{ ci_img(course.cover) }}">
+                <img id="cover-img" class="kg-cover" src="{{ course.cover }}">
             {% else %}
                 <img id="cover-img" class="kg-cover" src="{{ image('admin/img/default_cover.png') }}">
             {% endif %}
-            <input type="hidden" name="cover" value="{{ ci_img(course.cover) }}">
+            <input type="hidden" name="cover" value="{{ course.cover }}">
         </div>
         <div class="layui-input-inline" style="padding-top:35px;">
             <a href="javascript:" class="layui-btn layui-btn-sm" id="choose-cover">编辑</a>
diff --git a/app/Http/Admin/Views/slide/edit.volt b/app/Http/Admin/Views/slide/edit.volt
index 3483821e..67a6e390 100644
--- a/app/Http/Admin/Views/slide/edit.volt
+++ b/app/Http/Admin/Views/slide/edit.volt
@@ -18,11 +18,11 @@
         <label class="layui-form-label">封面</label>
         <div class="layui-input-inline">
             {% if slide.cover %}
-                <img id="cover-img" class="kg-cover" src="{{ ci_img(slide.cover) }}">
+                <img id="cover-img" class="kg-cover" src="{{ slide.cover }}">
             {% else %}
                 <img id="cover-img" class="kg-cover" src="{{ image('admin/img/default_cover.png') }}">
             {% endif %}
-            <input type="hidden" name="cover" value="{{ ci_img(slide.cover) }}">
+            <input type="hidden" name="cover" value="{{ slide.cover }}">
         </div>
         <div class="layui-input-inline" style="padding-top:35px;">
             <a href="javascript:" class="layui-btn layui-btn-sm" id="choose-cover">编辑</a>
diff --git a/app/Library/Cache/Frontend/Json.php b/app/Library/Cache/Frontend/Json.php
index cc498b8c..c8fa2fa9 100644
--- a/app/Library/Cache/Frontend/Json.php
+++ b/app/Library/Cache/Frontend/Json.php
@@ -13,7 +13,7 @@ class Json extends \Phalcon\Cache\Frontend\Json
      */
     public function beforeStore($data)
     {
-        $options = JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE;
+        $options = JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE | JSON_PRESERVE_ZERO_FRACTION;
 
         return json_encode($data, $options);
     }
diff --git a/app/Library/Helper.php b/app/Library/Helper.php
index 69be136a..7c693427 100644
--- a/app/Library/Helper.php
+++ b/app/Library/Helper.php
@@ -171,6 +171,8 @@ function kg_ci_base_url()
  */
 function kg_ci_img_url($path, $width = 0, $height = 0)
 {
+    if (!$path) return '';
+
     $storage = new StorageService();
 
     return $storage->getCiImageUrl($path, $width, $height);
diff --git a/app/Models/Course.php b/app/Models/Course.php
index cf1252a0..8a814af0 100644
--- a/app/Models/Course.php
+++ b/app/Models/Course.php
@@ -292,6 +292,10 @@ class Course extends Model
         $this->rating = (float)$this->rating;
         $this->score = (float)$this->score;
 
+        if (!empty($this->cover)) {
+            $this->cover = kg_ci_img_url($this->cover);
+        }
+
         if (!empty($this->attrs)) {
             $this->attrs = json_decode($this->attrs, true);
         }
diff --git a/app/Models/Slide.php b/app/Models/Slide.php
index 8260dd9f..439c6e03 100644
--- a/app/Models/Slide.php
+++ b/app/Models/Slide.php
@@ -118,6 +118,13 @@ class Slide extends Model
         $this->update_time = time();
     }
 
+    public function afterFetch()
+    {
+        if (!empty($this->cover)) {
+            $this->cover = kg_ci_img_url($this->cover);
+        }
+    }
+
     public static function targetTypes()
     {
         return [
diff --git a/app/Providers/Volt.php b/app/Providers/Volt.php
index b56127a4..a266487c 100644
--- a/app/Providers/Volt.php
+++ b/app/Providers/Volt.php
@@ -38,7 +38,7 @@ class Volt extends Provider
                 return 'kg_js_include(' . $resolvedArgs . ')';
             });
 
-            $compiler->addFunction('ci_img', function ($resolvedArgs) {
+            $compiler->addFunction('ci_image', function ($resolvedArgs) {
                 return 'kg_ci_img_url(' . $resolvedArgs . ')';
             });
 
diff --git a/app/Services/Frontend/ChapterTrait.php b/app/Services/Frontend/ChapterTrait.php
index 2c9e6a70..750d9c3d 100644
--- a/app/Services/Frontend/ChapterTrait.php
+++ b/app/Services/Frontend/ChapterTrait.php
@@ -27,6 +27,13 @@ trait ChapterTrait
         return $validator->checkChapter($id);
     }
 
+    public function checkChapterCache($id)
+    {
+        $validator = new ChapterValidator();
+
+        return $validator->checkChapterCache($id);
+    }
+
     public function setChapterUser(ChapterModel $chapter, UserModel $user)
     {
         $chapterUserRepo = new ChapterUserRepo();
diff --git a/app/Services/Frontend/Course/PackageList.php b/app/Services/Frontend/Course/PackageList.php
index 4de932be..0d43216e 100644
--- a/app/Services/Frontend/Course/PackageList.php
+++ b/app/Services/Frontend/Course/PackageList.php
@@ -7,7 +7,6 @@ use App\Repos\Course as CourseRepo;
 use App\Repos\Package as PackageRepo;
 use App\Services\Frontend\CourseTrait;
 use App\Services\Frontend\Service;
-use Phalcon\Mvc\Model\Resultset;
 
 class PackageList extends Service
 {
@@ -22,19 +21,19 @@ class PackageList extends Service
 
         $packages = $courseRepo->findPackages($course->id);
 
-        return $this->handlePackages($packages);
-    }
-
-    /**
-     * @param Resultset|PackageModel[] $packages
-     * @return array
-     */
-    protected function handlePackages($packages)
-    {
         if ($packages->count() == 0) {
             return [];
         }
 
+        return $this->handlePackages($packages);
+    }
+
+    /**
+     * @param PackageModel[] $packages
+     * @return array
+     */
+    protected function handlePackages($packages)
+    {
         $result = [];
 
         foreach ($packages as $package) {
diff --git a/app/Services/Frontend/CourseTrait.php b/app/Services/Frontend/CourseTrait.php
index 38687fe3..537ff95f 100644
--- a/app/Services/Frontend/CourseTrait.php
+++ b/app/Services/Frontend/CourseTrait.php
@@ -33,6 +33,13 @@ trait CourseTrait
         return $validator->checkCourse($id);
     }
 
+    public function checkCourseCache($id)
+    {
+        $validator = new CourseValidator();
+
+        return $validator->checkCourseCache($id);
+    }
+
     public function setCourseUser(CourseModel $course, UserModel $user)
     {
         $courseUserRepo = new CourseUserRepo();
diff --git a/app/Services/Frontend/Order/OrderConfirm.php b/app/Services/Frontend/Order/OrderConfirmInfo.php
similarity index 84%
rename from app/Services/Frontend/Order/OrderConfirm.php
rename to app/Services/Frontend/Order/OrderConfirmInfo.php
index bd46b485..3e5d2fe9 100644
--- a/app/Services/Frontend/Order/OrderConfirm.php
+++ b/app/Services/Frontend/Order/OrderConfirmInfo.php
@@ -11,10 +11,10 @@ use App\Repos\Package as PackageRepo;
 use App\Services\Frontend\Service;
 use App\Validators\Order as OrderValidator;
 
-class OrderConfirm extends Service
+class OrderConfirmInfo extends Service
 {
 
-    public function confirmOrder()
+    public function getConfirmInfo()
     {
         $query = $this->request->getQuery();
 
@@ -75,20 +75,7 @@ class OrderConfirm extends Service
 
     protected function handleCourseInfo(CourseModel $course)
     {
-        $course->cover = kg_ci_img_url($course->cover);
-
-        return [
-            'id' => $course->id,
-            'title' => $course->title,
-            'cover' => $course->cover,
-            'summary' => $course->summary,
-            'model' => $course->model,
-            'level' => $course->level,
-            'study_expiry' => $course->study_expiry,
-            'refund_expiry' => $course->refund_expiry,
-            'market_price' => $course->market_price,
-            'vip_price' => $course->vip_price,
-        ];
+        return $this->formatCourseInfo($course);
     }
 
     protected function handlePackageInfo(PackageModel $package)
@@ -105,24 +92,8 @@ class OrderConfirm extends Service
 
         $courses = $packageRepo->findCourses($package->id);
 
-        $baseUrl = kg_ci_base_url();
-
         foreach ($courses as $course) {
-
-            $course->cover = $baseUrl . $course->cover;
-
-            $result['courses'][] = [
-                'id' => $course->id,
-                'title' => $course->title,
-                'cover' => $course->cover,
-                'summary' => $course->summary,
-                'model' => $course->model,
-                'level' => $course->level,
-                'study_expiry' => $course->study_expiry,
-                'refund_expiry' => $course->refund_expiry,
-                'market_price' => $course->market_price,
-                'vip_price' => $course->vip_price,
-            ];
+            $result['courses'][] = $this->formatCourseInfo($course);
         }
 
         return $result;
@@ -147,4 +118,22 @@ class OrderConfirm extends Service
         ];
     }
 
+    protected function formatCourseInfo(CourseModel $course)
+    {
+        $course->cover = kg_ci_img_url($course->cover);
+
+        return [
+            'id' => $course->id,
+            'title' => $course->title,
+            'cover' => $course->cover,
+            'summary' => $course->summary,
+            'model' => $course->model,
+            'level' => $course->level,
+            'study_expiry' => $course->study_expiry,
+            'refund_expiry' => $course->refund_expiry,
+            'market_price' => $course->market_price,
+            'vip_price' => $course->vip_price,
+        ];
+    }
+
 }