Question

Knowing what is added/deleted in subform?

Asked by: Lexun

I have an order entry app that will also keep track of inventory stock quantities.

If a customer adds or deletes products in a typical order entry subform, how do I know what they added or deleted so I can update the inventory?

Is there a way to read each line of the subform so I can tell what is going on during an update or delete?

What is the best way to accomplish this?

Seems this would be easily accomplished using a trigger in SQL Server, but how is this done in an Access subform?

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Asked On
2004-02-29 at 19:56:55ID20902195
Tags

access

,

subform

Topic

Microsoft Access Database

Participating Experts
3
Points
500
Comments
3

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Answers

 

by: capricorn1Posted on 2004-02-29 at 21:25:31ID: 10484025

You may need an audit logging
Check this sites
http://www.itsgemeiner.com/service/EE/
    select  recordchange.mdb

http://members.iinet.net.au/~allenbrowne/AppAudit.html

 

by: eghtebasPosted on 2004-02-29 at 22:16:28ID: 10484170

Re:> I have an order entry app that will also keep track of inventory stock quantities.

"stock quantities" data need to be recorded in a table
"order/ cancled(deleted order)" date need to be recorded in a table
But, inventory shouldn't be recorded in a table, it needs to be examined by a quey to find:
 [inventory]=[stock + order] - [orders leaving stock]

Therefore, there is not anything to do when you are saying: "...so I can update the inventory..."
-------------
There should be a Yes/No field in your order table called OrderCanceledYN.  And, your form needs to be set Allow Deletion property to No.  No, if a customer enters different part numbers and whishes to cancle (delete) two of them, they have to check OrderCanceledYN field.  meaning, you will have a good record of it in your table always.  

Also, it is a good idea, to include a field called TimeStamp (Date/Time).  And in the after update event of your form incude:

Me!txtTimeStamp =Now()

This way, you will know what item is deleted and on what date and time.  If the decide to include it again, OrderCanceledYN for that item could be checked-off.

This is not like LogTable that banks use, but considering its simplicity, it seems quick and you may find it suficient for you application.  LogTable will track unlimited add/ reomve and is overkill.

Mike

 

by: nico5038Posted on 2004-02-29 at 23:31:35ID: 10484405

Normal order processing will be:
1) Enter the order
2) Show the order to the wharehouse
3) Pick the goods
4) Dispatch the goods

To do your stock corrections you'll need to determine when stocks need to be adjusted. Normally that's when the goods are dispatched. All you need in your database is to have an OrderDispatchDate. This can be used for correcting the stock and to be sure it's corrrected only once you can also add a OrderStockUpdateDate.
Using dates will make an historical insight in the handling of the goods possible !

The "deletion" of orders should only be allowed for orders having an empty OrderStockUpdateDate. When goods are returned (order not delivered or customer not satisfied), you just need another type of order. In common different processes are needed when good are returned. (Check or they are still OK, reason customer rejected goods, number of returned goods can differ from original order, etc.)

Getting the idea ?

Nic;o)

20120131-EE-VQP-002

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