diff --git a/helper.php b/helper.php
index da0dc9c5..677b47f5 100644
--- a/helper.php
+++ b/helper.php
@@ -354,22 +354,25 @@ if (!function_exists('cache')) {
     {
         if (is_array($options)) {
             // 缓存操作的同时初始化
-            Cache::connect($options);
+            $cache = Cache::connect($options);
         } elseif (is_array($name)) {
             // 缓存初始化
             return Cache::connect($name);
+        } else {
+            $cache = Cache::init();
         }
+
         if (is_null($name)) {
-            return Cache::clear($value);
+            return $cache->clear($value);
         } elseif ('' === $value) {
             // 获取缓存
-            return 0 === strpos($name, '?') ? Cache::has(substr($name, 1)) : Cache::get($name);
+            return 0 === strpos($name, '?') ? $cache->has(substr($name, 1)) : $cache->get($name);
         } elseif (is_null($value)) {
             // 删除缓存
-            return Cache::rm($name);
+            return $cache->rm($name);
         } elseif (0 === strpos($name, '?') && '' !== $value) {
             $expire = is_numeric($options) ? $options : null;
-            return Cache::remember(substr($name, 1), $value, $expire);
+            return $cache->remember(substr($name, 1), $value, $expire);
         } else {
             // 缓存数据
             if (is_array($options)) {
@@ -378,9 +381,9 @@ if (!function_exists('cache')) {
                 $expire = is_numeric($options) ? $options : null; //默认快捷缓存设置过期时间
             }
             if (is_null($tag)) {
-                return Cache::set($name, $value, $expire);
+                return $cache->set($name, $value, $expire);
             } else {
-                return Cache::tag($tag)->set($name, $value, $expire);
+                return $cache->tag($tag)->set($name, $value, $expire);
             }
         }
     }
diff --git a/library/think/Model.php b/library/think/Model.php
index 976823aa..2e5531e5 100644
--- a/library/think/Model.php
+++ b/library/think/Model.php
@@ -36,6 +36,8 @@ abstract class Model implements \JsonSerializable, \ArrayAccess
     protected static $links = [];
     // 数据库配置
     protected $connection = [];
+    // 父关联模型对象
+    protected $parent;
     // 数据库查询对象
     protected $query;
     // 当前模型名称
@@ -219,6 +221,29 @@ abstract class Model implements \JsonSerializable, \ArrayAccess
     {
     }
 
+    /**
+     * 设置父关联对象
+     * @access public
+     * @param Model $model  模型对象
+     * @return $this
+     */
+    public function setParent($model)
+    {
+        $this->parent = $model;
+
+        return $this;
+    }
+
+    /**
+     * 获取父关联对象
+     * @access public
+     * @return Model
+     */
+    public function getParent()
+    {
+        return $this->parent;
+    }
+
     /**
      * 设置数据对象值
      * @access public
@@ -283,7 +308,7 @@ abstract class Model implements \JsonSerializable, \ArrayAccess
             // 检测修改器
             $method = 'set' . Loader::parseName($name, 1) . 'Attr';
             if (method_exists($this, $method)) {
-                $value = $this->$method($value, $data);
+                $value = $this->$method($value, array_merge($this->data, $data));
             } elseif (isset($this->type[$name])) {
                 // 类型转换
                 $value = $this->writeTransform($value, $this->type[$name]);
@@ -458,10 +483,9 @@ abstract class Model implements \JsonSerializable, \ArrayAccess
         } elseif ($notFound) {
             $method = Loader::parseName($name, 1, false);
             if (method_exists($this, $method) && $this->$method() instanceof Relation) {
-                // 清空之前的查询参数
-                $this->$method()->removeOption();
+                $modelRelation = $this->$method();
                 // 不存在该字段 获取关联数据
-                $value = $this->$method()->getRelation();
+                $value = $this->getRelationData($modelRelation);
                 // 保存关联对象值
                 $this->data[$name] = $value;
             } else {
@@ -471,6 +495,23 @@ abstract class Model implements \JsonSerializable, \ArrayAccess
         return $value;
     }
 
+    /**
+     * 获取关联模型数据
+     * @access public
+     * @param Relation        $modelRelation 模型关联对象
+     * @return mixed
+     */
+    protected function getRelationData($modelRelation)
+    {
+        if ($this->parent && get_class($this->parent) == $modelRelation->getModel()) {
+            $value = $this->parent;
+        } else {
+            // 首先获取关联数据
+            $value = $modelRelation->removeOption()->getRelation();
+        }
+        return $value;
+    }
+
     /**
      * 数据读取 类型转换
      * @access public
@@ -1217,7 +1258,7 @@ abstract class Model implements \JsonSerializable, \ArrayAccess
     /**
      * 返回模型的错误信息
      * @access public
-     * @return string
+     * @return string|array
      */
     public function getError()
     {
@@ -1812,16 +1853,27 @@ abstract class Model implements \JsonSerializable, \ArrayAccess
         }
     }
 
-    public static function __callStatic($method, $params)
+    public static function __callStatic($method, $args)
     {
+        $model = new static();
+
         if (isset(static::$db)) {
             $query      = static::$db;
             static::$db = null;
         } else {
-            $query = (new static())->db();
+            $query = $model->db();
         }
 
-        return call_user_func_array([$query, $method], $params);
+        if (method_exists($model, 'scope' . $method)) {
+            // 动态调用命名范围
+            $method = 'scope' . $method;
+            array_unshift($args, $query);
+
+            call_user_func_array([$model, $method], $args);
+            return $query;
+        } else {
+            return call_user_func_array([$query, $method], $args);
+        }
     }
 
     /**
diff --git a/library/think/model/relation/BelongsTo.php b/library/think/model/relation/BelongsTo.php
index f693ef6d..630719c0 100644
--- a/library/think/model/relation/BelongsTo.php
+++ b/library/think/model/relation/BelongsTo.php
@@ -50,7 +50,16 @@ class BelongsTo extends OneToOne
         if ($closure) {
             call_user_func_array($closure, [ & $this->query]);
         }
-        return $this->query->where($this->localKey, $this->parent->$foreignKey)->relation($subRelation)->find();
+        $relationModel = $this->query
+            ->where($this->localKey, $this->parent->$foreignKey)
+            ->relation($subRelation)
+            ->find();
+
+        if ($relationModel) {
+            $relationModel->setParent(clone $this->parent);
+        }
+
+        return $relationModel;
     }
 
     /**
@@ -130,6 +139,8 @@ class BelongsTo extends OneToOne
                     $relationModel = null;
                 } else {
                     $relationModel = $data[$result->$foreignKey];
+                    $relationModel->setParent(clone $result);
+                    $relationModel->isUpdate(true);
                 }
 
                 if ($relationModel && !empty($this->bindAttr)) {
@@ -161,6 +172,8 @@ class BelongsTo extends OneToOne
             $relationModel = null;
         } else {
             $relationModel = $data[$result->$foreignKey];
+            $relationModel->setParent(clone $result);
+            $relationModel->isUpdate(true);
         }
         if ($relationModel && !empty($this->bindAttr)) {
             // 绑定关联属性
diff --git a/library/think/model/relation/HasMany.php b/library/think/model/relation/HasMany.php
index 4c045494..903293f0 100644
--- a/library/think/model/relation/HasMany.php
+++ b/library/think/model/relation/HasMany.php
@@ -11,7 +11,6 @@
 
 namespace think\model\relation;
 
-use think\Db;
 use think\db\Query;
 use think\Loader;
 use think\Model;
@@ -47,7 +46,14 @@ class HasMany extends Relation
         if ($closure) {
             call_user_func_array($closure, [ & $this->query]);
         }
-        return $this->relation($subRelation)->select();
+        $list   = $this->relation($subRelation)->select();
+        $parent = clone $this->parent;
+
+        foreach ($list as &$model) {
+            $model->setParent($parent);
+        }
+
+        return $list;
     }
 
     /**
@@ -84,6 +90,11 @@ class HasMany extends Relation
                 if (!isset($data[$result->$localKey])) {
                     $data[$result->$localKey] = [];
                 }
+
+                foreach ($data[$result->$localKey] as &$relationModel) {
+                    $relationModel->setParent(clone $result);
+                }
+
                 $result->setAttr($attr, $this->resultSetBuild($data[$result->$localKey]));
             }
         }
@@ -108,6 +119,11 @@ class HasMany extends Relation
             if (!isset($data[$result->$localKey])) {
                 $data[$result->$localKey] = [];
             }
+
+            foreach ($data[$result->$localKey] as &$relationModel) {
+                $relationModel->setParent(clone $result);
+            }
+
             $result->setAttr(Loader::parseName($relation), $this->resultSetBuild($data[$result->$localKey]));
         }
     }
diff --git a/library/think/model/relation/HasManyThrough.php b/library/think/model/relation/HasManyThrough.php
index dd6f6a55..4d9240c5 100644
--- a/library/think/model/relation/HasManyThrough.php
+++ b/library/think/model/relation/HasManyThrough.php
@@ -11,7 +11,6 @@
 
 namespace think\model\relation;
 
-use think\Db;
 use think\db\Query;
 use think\Exception;
 use think\Loader;
@@ -57,6 +56,7 @@ class HasManyThrough extends Relation
         if ($closure) {
             call_user_func_array($closure, [ & $this->query]);
         }
+
         return $this->relation($subRelation)->select();
     }
 
@@ -96,8 +96,7 @@ class HasManyThrough extends Relation
      * @return void
      */
     public function eagerlyResultSet(&$resultSet, $relation, $subRelation, $closure, $class)
-    {
-    }
+    {}
 
     /**
      * 预载入关联查询 返回模型对象
@@ -110,8 +109,7 @@ class HasManyThrough extends Relation
      * @return void
      */
     public function eagerlyResult(&$result, $relation, $subRelation, $closure, $class)
-    {
-    }
+    {}
 
     /**
      * 关联统计
@@ -121,8 +119,7 @@ class HasManyThrough extends Relation
      * @return integer
      */
     public function relationCount($result, $closure)
-    {
-    }
+    {}
 
     /**
      * 执行基础查询（进执行一次）
diff --git a/library/think/model/relation/HasOne.php b/library/think/model/relation/HasOne.php
index 95a401bf..e5a557a0 100644
--- a/library/think/model/relation/HasOne.php
+++ b/library/think/model/relation/HasOne.php
@@ -50,7 +50,13 @@ class HasOne extends OneToOne
             call_user_func_array($closure, [ & $this->query]);
         }
         // 判断关联类型执行查询
-        return $this->query->where($this->foreignKey, $this->parent->$localKey)->relation($subRelation)->find();
+        $relationModel = $this->query->where($this->foreignKey, $this->parent->$localKey)->relation($subRelation)->find();
+
+        if ($relationModel) {
+            $relationModel->setParent(clone $this->parent);
+        }
+
+        return $relationModel;
     }
 
     /**
@@ -132,10 +138,12 @@ class HasOne extends OneToOne
                     $relationModel = null;
                 } else {
                     $relationModel = $data[$result->$localKey];
-                }
-                if ($relationModel && !empty($this->bindAttr)) {
-                    // 绑定关联属性
-                    $this->bindAttr($relationModel, $result, $this->bindAttr);
+                    $relationModel->setParent(clone $result);
+                    $relationModel->isUpdate(true);
+                    if (!empty($this->bindAttr)) {
+                        // 绑定关联属性
+                        $this->bindAttr($relationModel, $result, $this->bindAttr);
+                    }
                 }
                 // 设置关联属性
                 $result->setAttr($attr, $relationModel);
@@ -163,12 +171,14 @@ class HasOne extends OneToOne
             $relationModel = null;
         } else {
             $relationModel = $data[$result->$localKey];
+            $relationModel->setParent(clone $result);
+            $relationModel->isUpdate(true);
+            if (!empty($this->bindAttr)) {
+                // 绑定关联属性
+                $this->bindAttr($relationModel, $result, $this->bindAttr);
+            }
         }
 
-        if ($relationModel && !empty($this->bindAttr)) {
-            // 绑定关联属性
-            $this->bindAttr($relationModel, $result, $this->bindAttr);
-        }
         $result->setAttr(Loader::parseName($relation), $relationModel);
     }
 
diff --git a/library/think/model/relation/MorphMany.php b/library/think/model/relation/MorphMany.php
index 964d3d3a..4eee60fe 100644
--- a/library/think/model/relation/MorphMany.php
+++ b/library/think/model/relation/MorphMany.php
@@ -11,7 +11,6 @@
 
 namespace think\model\relation;
 
-use think\Db;
 use think\db\Query;
 use think\Exception;
 use think\Loader;
@@ -56,7 +55,14 @@ class MorphMany extends Relation
         if ($closure) {
             call_user_func_array($closure, [ & $this->query]);
         }
-        return $this->relation($subRelation)->select();
+        $list   = $this->relation($subRelation)->select();
+        $parent = clone $this->parent;
+
+        foreach ($list as &$model) {
+            $model->setParent($parent);
+        }
+
+        return $list;
     }
 
     /**
@@ -119,6 +125,10 @@ class MorphMany extends Relation
                 if (!isset($data[$result->$pk])) {
                     $data[$result->$pk] = [];
                 }
+                foreach ($data[$result->$pk] as &$relationModel) {
+                    $relationModel->setParent(clone $result);
+                    $relationModel->isUpdate(true);
+                }
                 $result->setAttr($attr, $this->resultSetBuild($data[$result->$pk]));
             }
         }
@@ -141,6 +151,12 @@ class MorphMany extends Relation
                 $this->morphKey  => $result->$pk,
                 $this->morphType => $this->type,
             ], $relation, $subRelation, $closure);
+
+            foreach ($data[$result->$pk] as &$relationModel) {
+                $relationModel->setParent(clone $result);
+                $relationModel->isUpdate(true);
+            }
+
             $result->setAttr(Loader::parseName($relation), $this->resultSetBuild($data[$result->$pk]));
         }
     }
diff --git a/library/think/model/relation/MorphOne.php b/library/think/model/relation/MorphOne.php
index 1bcc7710..e22198bb 100644
--- a/library/think/model/relation/MorphOne.php
+++ b/library/think/model/relation/MorphOne.php
@@ -11,7 +11,6 @@
 
 namespace think\model\relation;
 
-use think\Db;
 use think\db\Query;
 use think\Exception;
 use think\Loader;
@@ -56,7 +55,13 @@ class MorphOne extends Relation
         if ($closure) {
             call_user_func_array($closure, [ & $this->query]);
         }
-        return $this->relation($subRelation)->find();
+        $relationModel = $this->relation($subRelation)->find();
+
+        if ($relationModel) {
+            $relationModel->setParent(clone $this->parent);
+        }
+
+        return $relationModel;
     }
 
     /**
@@ -117,9 +122,14 @@ class MorphOne extends Relation
             // 关联数据封装
             foreach ($resultSet as $result) {
                 if (!isset($data[$result->$pk])) {
-                    $data[$result->$pk] = [];
+                    $relationModel = null;
+                } else {
+                    $relationModel = $data[$result->$pk];
+                    $relationModel->setParent(clone $result);
+                    $relationModel->isUpdate(true);
                 }
-                $result->setAttr($attr, $this->resultSetBuild($data[$result->$pk]));
+
+                $result->setAttr($attr, $relationModel);
             }
         }
     }
@@ -137,11 +147,21 @@ class MorphOne extends Relation
     {
         $pk = $result->getPk();
         if (isset($result->$pk)) {
+            $pk   = $result->$pk;
             $data = $this->eagerlyMorphToOne([
-                $this->morphKey  => $result->$pk,
+                $this->morphKey  => $pk,
                 $this->morphType => $this->type,
             ], $relation, $subRelation, $closure);
-            $result->setAttr(Loader::parseName($relation), $this->resultSetBuild($data[$result->$pk]));
+
+            if (isset($data[$pk])) {
+                $relationModel = $data[$pk];
+                $relationModel->setParent(clone $result);
+                $relationModel->isUpdate(true);
+            } else {
+                $relationModel = null;
+            }
+
+            $result->setAttr(Loader::parseName($relation), $relationModel);
         }
     }
 
diff --git a/library/think/model/relation/MorphTo.php b/library/think/model/relation/MorphTo.php
index 9c020b85..d67989c4 100644
--- a/library/think/model/relation/MorphTo.php
+++ b/library/think/model/relation/MorphTo.php
@@ -56,8 +56,13 @@ class MorphTo extends Relation
         // 多态模型
         $model = $this->parseModel($this->parent->$morphType);
         // 主键数据
-        $pk = $this->parent->$morphKey;
-        return (new $model)->relation($subRelation)->find($pk);
+        $pk            = $this->parent->$morphKey;
+        $relationModel = (new $model)->relation($subRelation)->find($pk);
+
+        if ($relationModel) {
+            $relationModel->setParent(clone $this->parent);
+        }
+        return $relationModel;
     }
 
     /**
@@ -168,7 +173,11 @@ class MorphTo extends Relation
                         if (!isset($data[$result->$morphKey])) {
                             throw new Exception('relation data not exists :' . $this->model);
                         } else {
-                            $result->setAttr($attr, $data[$result->$morphKey]);
+                            $relationModel = $data[$result->$morphKey];
+                            $relationModel->setParent(clone $result);
+                            $relationModel->isUpdate(true);
+
+                            $result->setAttr($attr, $relationModel);
                         }
                     }
                 }
@@ -220,6 +229,7 @@ class MorphTo extends Relation
         $pk   = $this->parent->{$this->morphKey};
         $data = (new $model)->with($subRelation)->find($pk);
         if ($data) {
+            $data->setParent(clone $result);
             $data->isUpdate(true);
         }
         $result->setAttr(Loader::parseName($relation), $data ?: null);
diff --git a/library/think/model/relation/OneToOne.php b/library/think/model/relation/OneToOne.php
index b0cf931d..4368618e 100644
--- a/library/think/model/relation/OneToOne.php
+++ b/library/think/model/relation/OneToOne.php
@@ -245,13 +245,19 @@ abstract class OneToOne extends Relation
                 }
             }
         }
+
         if (isset($list[$relation])) {
             $relationModel = new $model($list[$relation]);
+            $relationModel->setParent(clone $result);
+            $relationModel->isUpdate(true);
+
             if (!empty($this->bindAttr)) {
                 $this->bindAttr($relationModel, $result, $this->bindAttr);
             }
+        } else {
+            $relationModel = null;
         }
-        $result->setAttr(Loader::parseName($relation), !isset($relationModel) ? null : $relationModel->isUpdate(true));
+        $result->setAttr(Loader::parseName($relation), $relationModel);
     }
 
     /**
diff --git a/tests/thinkphp/library/think/requestTest.php b/tests/thinkphp/library/think/requestTest.php
index 7d89fa36..f86546e6 100644
--- a/tests/thinkphp/library/think/requestTest.php
+++ b/tests/thinkphp/library/think/requestTest.php
@@ -17,7 +17,6 @@ namespace tests\thinkphp\library\think;
 
 use think\Config;
 use think\Request;
-use think\Route;
 
 class requestTest extends \PHPUnit_Framework_TestCase
 {