改进软删除操作

library/think/db/Builder.php

@@ -280,6 +280,13 @@ abstract class Builder
 
             $whereStr .= empty($whereStr) ? substr(implode(' ', $str), strlen($key) + 1) : implode(' ', $str);
         }
+        if (!empty($options['soft_delete'])) {
+            // 附加软删除条件
+            list($field, $condition) = $options['soft_delete'];
+
+            $whereStr = $whereStr ? '( ' . $whereStr . ' ) AND ' : '';
+            $whereStr = $whereStr . $this->parseWhereItem($field, $condition, '', $options, $binds);
+        }
         return $whereStr;
     }
 

library/think/db/Query.php

@@ -1120,6 +1120,20 @@ class Query
         return $this;
     }
 
+    /**
+     * 设置软删除字段及条件
+     * @access public
+     * @param false|string  $field     查询字段
+     * @param mixed         $condition 查询条件
+     * @return $this
+     */
+    public function useSoftDelete($field, $condition = null)
+    {
+        if ($field) {
+            $this->options['soft_delete'] = [$field, $condition ?: ['null', '']];
+        }
+    }
+
     /**
      * 分析查询表达式
      * @access public