Commit 5f7bac66 authored by Łukasz Nowak's avatar Łukasz Nowak

- added basic Inventory Chart view for Component and Product

- added script python method to do sampling of inventory

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@22480 20353a03-c40f-0410-a6d1-a30d3c3de9de
parent 4bb9a40a
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"""Returns inventory list for resource scaled for chart\n
\n
Needs from_date and at_date to know time size.\n
\n
Uses sampling_amount, defaults to 20.\n
\n
Samples inventory by proper differency, returns\n
sampling_amount inventory lines, sorted by date.\n
"""\n
\n
# XXX: Might be set in preferences\n
sampling_amount = kwargs.get(\'sampling_amount\',20)\n
\n
from Products.ERP5Type.Document import newTempDocument\n
from DateTime import DateTime\n
\n
resource = context\n
request = context.REQUEST\n
portal = context.getPortalObject()\n
\n
node = portal.restrictedTraverse(kwargs.get(\'node\'))\n
from_date = kwargs.get(\'from_date\')\n
at_date = kwargs.get(\'at_date\')\n
variation_list = kwargs.get(\'variation_list\')\n
variation_text = \'\'\n
\n
if variation_list is not None and len(variation_list) > 0:\n
# imitate behaviour from ERP5/Variated.py:getVariationText\n
# to create text\n
variation_list.sort()\n
variation_text = \'\\n\'.join(variation_list)\n
\n
if from_date is None or at_date is None or node is None:\n
return []\n
\n
# Lower by one, to be include from_date and at_date\n
sampling_delta = ( DateTime(at_date) - DateTime(from_date) ) / (sampling_amount - 1)\n
\n
common_kw = {}\n
common_kw.update(\n
node_uid = node.getUid(),\n
sort_on = ((\'stock.date\',\'desc\'),),\n
variation_text = variation_text,\n
)\n
\n
inventory_tuple_list = []\n
\n
precise_time_format = \'%Y/%m/%d %H:%M.%S\'\n
base_time_format = precise_time_format\n
rough_time_form = \'%Y/%m/%d\'\n
# XXX: Below performance issues:\n
# * sampling made in dumb way - it shall use SQL\n
# * inventory is invoked 3 times for each sample\n
for i in range(0,sampling_amount):\n
this_date = DateTime(from_date + sampling_delta * i)\n
formatted_date = this_date.strftime(base_time_format)\n
internal_tuple = (\n
formatted_date,\n
resource.getCurrentInventory(\n
at_date = this_date,\n
**common_kw\n
),\n
resource.getAvailableInventory(\n
at_date = this_date,\n
**common_kw\n
),\n
resource.getFutureInventory(\n
at_date = this_date,\n
**common_kw\n
),\n
)\n
inventory_tuple_list.append(internal_tuple)\n
\n
return_list = [] \n
for a in range(0,len(inventory_tuple_list)):\n
d = newTempDocument( portal, str(a) )\n
data = inventory_tuple_list[a]\n
d.edit(\n
title = \'title %s\'%(a,),\n
date = data[0],\n
current = data[1],\n
available = data[2],\n
future = data[3],\n
)\n
return_list.append(d)\n
return return_list\n
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