如何在Firebase中执行多个查询搜索

Question

您好，我试图通过各种查询搜索拉取多个对象，但我想知道如何在不产生多个“ orderBy”入口点和等于入口点的情况下做到这一点。

这是我的数据

    {
      Item: {
        IDNumber1: {
          productDepartment: Cullinary,
          productStore: JCPenny
        }
        IDNumber2: {
          productDepartment: Cullinary,
          productStore: Macys
        }
        IDNumber3: {
          productDepartment: Home,
          productStore: JCPenny
        }
        IDNumber4: {
          productDepartment: Ties,
          productStore: JCPenny
        }
        IDNumber5: {
          productDepartment: Cullinary,
          productStore: Macys
        }
        IDNumber6: {
          productDepartment: Cullinary,
          productStore: Dillards
        }
        IDNumber7: {
          productDepartment: Ties,
          productStore: Dillards
        }
      }
    }

如果我想拉出所有包含梅西百货公司领带和迪拉德百货公司的对象，那么不同的对象在这种情况下为productStore和productDepartment 我想知道如何对各种Item名称进行OrderByChild并将其等于我要提取的数据。

    const query = dataFirebase.ref("jobs");
    query.orderByChild('productName').equalTo('Home').on('child_added', function(snapshot) { 


        var test = snapshot.val();
        console.log(test)
  }

我想知道使用

这样的东西是否是一个好主意

    const query = dataFirebase.ref("jobs");
    query.orderByChild('productName','productDepartment').equalTo('Home','Dillards').on('child_added', function(snapshot) { 


        var test = snapshot.val();
        console.log(test)
  }