改进关联统计

2026-07-06 23:02:48 +08:00 · 2016-12-26 15:52:53 +08:00
parent bfcc08cdeb
commit a74b842d71
4 changed files with 61 additions and 2 deletions
--- a/library/think/model/relation/BelongsToMany.php
+++ b/library/think/model/relation/BelongsToMany.php
@@ -161,6 +161,17 @@ class BelongsToMany extends Relation
        return $count;
    }

+    /**
+     * 获取关联统计子查询
+     * @access public
+     * @param \Closure  $closure 闭包
+     * @return string
+     */
+    public function getRelationCountQuery($closure)
+    {
+        return $this->belongsToManyQuery($this->middle, $this->foreignKey, $this->localKey, ['pivot.' . $this->localKey => ['exp', '=' . $this->parent->getTable() . '.' . $this->parent->getPk()]])->fetchSql()->count();
+    }
+
    /**
     * 多对多 关联模型预查询
     * @access public