NYCPHP Meetup

[Phil Powell]

Yes thanx, however, the client wanted a "FIFO" solution which means that if there are 30 items in stock and you ordered all 30 while someone else ordered 1, both of you will see 30 in stock until one of you checks out; whoever checks out first, wins!

Phil
  ----- Original Message ----- 
  From: tom at supertom.com 
  To: NYPHP Talk 
  Sent: Tuesday, September 30, 2003 8:40 AM
  Subject: RE: [nycphp-talk] Yet another dissatisfied customer...


  Phil,

  The way this is done in the manufacturing world is with an "inventory allocated" field.  This field holds the number of quantity of your current inventory that is "held" or allocated for another purpose, such as checkout.  Similar to inventory in a store, nothing should get removed from inventory until it is sold.  What this means to you - I would decrement inventory on the screen, and if he is that particular about it, display both the inventory and the allocated fields.

  However, with this said, personally I feel that you need to do whatever the customer is asking for, as long as it is in the scope and budget of the project.  As a consultant, it is your job to inform him of the risks involved (which you have done), but ultimately do what he asks.

  Phil, I hope you are doing this job for ALOT more than the last one (architecture for $68, remember?). :-)

  Good Luck!

  Tom





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    -----Original Message-----
    From: talk-bounces at lists.nyphp.org [mailto:talk-bounces at lists.nyphp.org]On Behalf Of Phil Powell
    Sent: Tuesday, September 30, 2003 1:37 AM
    To: NYPHP Talk
    Subject: [nycphp-talk] Yet another dissatisfied customer...


    ...am I cursed?

    Another client is threatening to "delete everything" calling my work a "waste of time".  There is, however, one possible sane reason for this, and I need to get some PHP guru advice on how to handle this.

    You have ordered one item and placed it into your cart.  Let's say you ordered one small black t-shirt.  Your cart will have the product_id, color_id and size_id for the small black t-shirt.  The quantity of this item is, let's say 30.  You have one in your cart, so how many are available:

    1) 29
    2) 30

    Now let's say that while I ordered one small black t-shirt, Sven ordered 1 small black t-shirt, Anders ordered one black t-shirt, and Olov ordered one black t-shirt.  If all four of us, at one time, are all ordering the same item and putting it into our carts, how many should there be available to us:

    1) 26
    2) 25
    3) 29
    4) 30

    This is where the contention comes in.  The client wants it done "FIFO" (First In First Out) meaning that whoever gets it first will subtract the quantity - but I dispute that (coming from somewhat of a Java background) that since PHP doesn't so single-threading, that means that all four of us could order t-shirts,  but the quantity has to reflect that all four of us are ordering (multi-threading).

    I dunno, help!

    Phil


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