改进Model类的getData方法

library/think/Model.php

@@ -163,7 +163,7 @@ abstract class Model implements \JsonSerializable, \ArrayAccess
      */
     public function getData($name = '')
     {
-        return isset($this->data[$name]) ? $this->data[$name] : $this->data;
+        return array_key_exists($name, $this->data) ? $this->data[$name] : $this->data;
     }
 
     /**

library/think/db/Query.php

@@ -797,6 +797,26 @@ class Query
         return $this;
     }
 
+    /**
+     * 得到当前的数据表
+     * @access public
+     * @param string $name
+     * @return string
+     */
+    public function getTable($name = '')
+    {
+        if ($name || empty($this->table)) {
+            $name      = $name ?: $this->name;
+            $tableName = $this->connection->getConfig('prefix');
+            if ($name) {
+                $tableName .= Loader::parseName($name);
+            }
+        } else {
+            $tableName = $this->table;
+        }
+        return $tableName;
+    }
+
     /**
      * 指定当前操作的数据表
      * @access public
@@ -1038,26 +1058,6 @@ class Query
         return $this;
     }
 
-    /**
-     * 得到当前的数据表
-     * @access public
-     * @param string $name
-     * @return string
-     */
-    public function getTable($name = '')
-    {
-        if ($name || empty($this->table)) {
-            $name      = $name ?: $this->name;
-            $tableName = $this->connection->getConfig('prefix');
-            if ($name) {
-                $tableName .= Loader::parseName($name);
-            }
-        } else {
-            $tableName = $this->table;
-        }
-        return $tableName;
-    }
-
     /**
      * 获取数据表信息
      * @access public