Laravel不同数据库的模型之间关联，laravel模型关联

Laravel不同数据库的模型之间关联，laravel模型关联

假设ModelA和ModelB之间是BelongsTo的关系

 

如果同属于一个数据库连接

那么

<span>public</span> <span>function</span><span> a(){
    </span><span>return</span> <span>$this</span>->belongsTo("ModelA"<span>)          
}</span>

如果两个模型属于不同的数据库

那么

<span>public</span> <span>function</span><span> a()
{
    </span><span>$instance</span> = <span>new</span><span> ModelA;
    </span><span>$instance</span>->setConnection(<span>$a_conn</span><span>);
    </span><span>$query</span> = <span>$instance</span>-><span>newQuery();
    </span><span>return</span> <span>new</span> BelongsTo(<span>$query</span>, <span>$this</span><span>);
}</span>