Allow to generate labels when we moved an entire package and compute the weight based on the children packages

[guewen]

Take the destination package. If empty, the package is moved so take the source one.

[guewen]

Not really correct, it works by accident.

Example of a flow:

I have 2 products on my SO, that I deliver in 3 steps (pick+pack+ship).

• PICK: I put product 1 and 2 in PACK0000065, we have 2 stock.pack.operation:
  • operation 1
  • product_id: product.product(1593,)
  • package_id: False
  • result_package_id: 'PACK0000065'
  • operation 2
  • product_id: product.product(1594,)
  • package_id: False
  • result_package_id: 'PACK0000065'
• PACK: I keep the PACK0000065 and move it to the next location
  • operation 3
  • product_id: False
  • package_id: 'PACK0000065'
  • result_package_id: False (means we keep 'PACK0000065') SHIP: I deliver PACK0000065
  • operation 4
  • product_id: False
  • package_id: 'PACK0000065'
  • result_package_id: False (means we keep 'PACK0000065')

The product_id is set only on the operations of the PICK picking, because afterwards we move only packages. Thus, I'm not sure that our method to get the pack is correct.

My first feeling is that we can filter all the operations where a product is set, whatever the picking is and as soon as we have a package_id or a result_package_id. My only doubt is : can we remove products from a package? If so, we'll have to subtract their weight.

[guewen]

Now, if I something like that:

• PICK: I put product 1 and 2 in PACK0000065, we have 2 stock.pack.operation:
  • operation 1
  • product_id: product.product(1593,)
  • package_id: False
  • result_package_id: 'PACK0000065'
  • operation 2
  • product_id: product.product(1594,)
  • package_id: False
  • result_package_id: 'PACK0000065'
• PACK: I keep the PACK0000065 and put it in a bigger pack PACK0000066
  • operation 3
  • product_id: False
  • package_id: 'PACK0000065'
  • result_package_id: 'PACK0000066' SHIP: I deliver PACK0000066
  • operation 4
  • product_id: False
  • package_id: 'PACK0000066'
  • result_package_id: False (means we keep 'PACK0000066')

Then, the weight must include the sum of the products included in PACK0000065!

[guewen]

My last commit covers the 2 scenarii

[guewen]

Could you review please?