How to get total sum of different quantity products for each distinct order? with condition like delivered, dispatched for daily and weekly basis

[gary5]

My in my case one Item assigned with OrderID may  have quantity more than 1. For example one item with 2 quantity has been ordered

My fields are 

1) date flag which have delivered and dispatched

2) Quantity 

3) orderID

4) date field as logistic_date 

however i am able to count order ID using flag and able to plot it on weekly basis.

kindly help me to figure out 

How should I calculate sum of  quantity  with different flag like delivered and dispatched on weekly and daily basis?