credativ team mailing list archive

["Olivier Dony \(OpenERP\)" <746620@xxxxxxxxxxxxxxxxxx>]

On 12/15/2011 03:14 PM, Ferdinand @ Camptocamp wrote:
> well I can at most agree with your saying for SO/PO , but not for
> pickings -
> 
> at least in Austria we have the requirement that pickings are "totally"
> gap-less, because stock accounting is considered as part of the
> accounting and to have gap-less numbering is the only way to proof
> completeness.

Oh I see, then you would probably need something like a
"stock_sequence_nogap" module to apply the same behavior we have for
invoices to pickings. This would be a fairly simple module, in a nutshell:
- change the type of the sequence used for pickings (as this is
configurable manually, adding a check for the proper sequence type
before allowing picking confirmation should be sufficient). You would
need to ensure that 'implementation' = 'no_gap' for the sequence.
- disable the '_default' for numbering pickings at creation and do it
later in the workflow
- finally forbid deleting a numbered picking by inheriting the unlink()
method for pickings

If limited to this minimal set of changes, such a module could probably
be accepted in the official addons, and could then be a dependency of
l10n_at and any localization that has this requirement.

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https://bugs.launchpad.net/bugs/746620

Title:
  Implementation of faster gap-tolerant sequences

Status in OpenERP Server:
  Fix Released

Bug description:
  OpenERP is classified as an Enterprise class software package. Meaning
  that more than one person, at least 2 should be able to use the system
  simultaneously. Like packers shipping products, taking orders,
  reserving products. I find that in fact, it is not possible for
  creation of stock moves simultaneously.

   Say I am importing orders from a shop. It is creating stock moves  because the order is paid. 
  At the same time I am shipping products which is normal for an ERP system.
  I might also import orders from a separate shop say a POS system.
  It is not possible!
  [2011-03-31 13:10:47,657][midwestsupplies] WARNING:stock.location:Failed attempt to reserve 1.0 x product 1669, li
  kely due to another transaction already in progress. Next attempt is likely to work. Detailed error available at D
  EBUG level.  
  OperationalError: could not obtain lock on row in relation "ir_sequence"
  Two different errors.
  I  can only perform one action at a time!
  What happens is that any time the program calls for a stock_move it will lock the stock_move table so no other process can access it which means that you cant do hardly anything unless its done individually. Now say with a MS system, or any Enterprise system would be able to handle many simultaneous actions but this program has a serious architecture flaw to not be able to support this.

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