Docs

src/entity/relation.rs

@@ -168,6 +168,8 @@ impl RelationDef {
     /// This method takes a closure with two parameters
     /// denoting the left-hand side and right-hand side table in the join expression.
     ///
+    /// This replaces the current condition if it is already set.
+    ///
     /// # Examples
     ///
     /// ```