朋友圈列表查询逻辑优化

app/enterprise/controller/Posts.php

@@ -27,36 +27,37 @@ class Posts extends BaseController
     // 朋友圈列表
     public function index()
     {
-        $where = '(p.delete_time = 0 and p.privacy > 0) and ';
-        $whereOr = $where . ' ( (p.user_id = ' . $this->uid;
+        $where = '(p.delete_time = 0 and p.privacy > 0) ';
+        $where .= ' and ( p.user_id = ' . $this->uid;
 
+        $prefix = config('database.connections.mysql.prefix');
         $friendIds = Friend::getFriendIds($this->uid);
 
         if ($friendIds) {
             $friendIdStr = implode(',',$friendIds);
-            $whereOr .= ' or ( p.privacy = 1 and p.user_id in (' . $friendIdStr . '))';
-        }
+            $where .= ' or ( p.privacy = 1 and p.user_id in (' . $friendIdStr . '))';
 
-        $prefix = config('database.connections.mysql.prefix');
+            // 可见
+            $where .= " or ( p.privacy = 2 and exists (
+                select 1 from {$prefix}posts_privacy_users pvu
+                where pvu.posts_id = p.id and pvu.user_id = p.user_id 
+                and pvu.type = 1 and pvu.user_id in ({$friendIdStr})
+            ))";
 
-        // 可见
-        $whereOr .= " or ( p.privacy = 2 and exists (
-            select 1 from {$prefix}posts_privacy_users pvu
-            where pvu.posts_id = p.id and pvu.user_id = p.user_id 
-            and pvu.type = 1 and pvu.user_id = {$this->uid}
-        ))";
+        }
 
         // 不可见
-        $whereOr .= " or ( p.privacy = 4 and not exists (
-            select 1 from {$prefix}posts_privacy_users peu
-            where peu.posts_id = p.id and peu.user_id = p.user_id 
-            and peu.type = 2 and peu.user_id = {$this->uid}
-        )))";
+        $where .= " or ( p.privacy = 4 and not exists (
+                select 1 from {$prefix}posts_privacy_users peu
+                where peu.posts_id = p.id and peu.user_id = p.user_id 
+                and peu.type = 2 and peu.user_id = {$this->uid}
+            ))";
+        $where .= ')';
 
         $field = 'p.id,p.content,p.location,p.address as location_address,p.type,p.user_id,p.create_time';
         $order = 'p.create_time desc';
         $model = new PostsModel();
-        $list = $this->paginate($model->alias('p')->where($whereOr)->field($field)->order($order));
+        $list = $this->paginate($model->alias('p')->where($where)->field($field)->order($order));
 
         $data = [];
         if ($list) {
@@ -319,7 +320,7 @@ class Posts extends BaseController
     {
         $existsWhere = ['user_id' => $this->uid, 'privacy' => 0, 'delete_time' => 0];
         $field = 'id as posts_id,content,type,location,address as location_address';
-        $data = PostsModel::where($existsWhere)->field($field)->find()->toArray();
+        $data = PostsModel::where($existsWhere)->field($field)->find();
         if ($data) {
             $fileWhere = [
                 'posts_id' => $data['posts_id'],