588 lines
23 KiB
Python
588 lines
23 KiB
Python
#This file is part of Tryton. The COPYRIGHT file at the top level of
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#this repository contains the full copyright notices and license terms.
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import datetime
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from trytond.model import ModelView, ModelSQL, fields
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from trytond.wizard import Wizard
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from trytond.pyson import PYSONEncoder
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from trytond.transaction import Transaction
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from trytond.tools import safe_eval
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from trytond.pool import Pool
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class Template(ModelSQL, ModelView):
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_name = "product.template"
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quantity = fields.Function(fields.Float('Quantity'), 'get_quantity')
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forecast_quantity = fields.Function(fields.Float('Forecast Quantity'),
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'get_quantity')
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def get_quantity(self, ids, name):
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res = {}
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if name not in ('quantity', 'forecast_quantity'):
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raise Exception('Bad argument')
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for template in self.browse(ids):
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res[template.id] = 0.0
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for product in template.products:
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res[template.id] += product[name]
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return res
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def __init__(self):
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super(Template, self).__init__()
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self._error_messages.update({
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'change_default_uom': 'You cannot change the default uom for '\
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'a product which is associated to stock moves.',
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})
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def write(self, ids, vals):
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move_obj = Pool().get('stock.move')
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cursor = Transaction().cursor
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if not vals.get("default_uom"):
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return super(Template, self).write(ids, vals)
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for i in range(0, len(ids), cursor.IN_MAX):
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sub_ids = ids[i:i + cursor.IN_MAX]
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res = self.search([
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('id', 'in', sub_ids),
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('default_uom', '!=', vals['default_uom']),
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])
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if res:
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res = move_obj.search([
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('product.template', 'in', res),
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], limit=1)
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if res:
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self.raise_user_error('change_default_uom')
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return super(Template, self).write(ids, vals)
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Template()
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class Product(ModelSQL, ModelView):
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_name = "product.product"
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quantity = fields.Function(fields.Float('Quantity'), 'get_quantity',
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searcher='search_quantity')
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forecast_quantity = fields.Function(fields.Float('Forecast Quantity'),
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'get_quantity', searcher='search_quantity')
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def get_quantity(self, ids, name):
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date_obj = Pool().get('ir.date')
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if not Transaction().context.get('locations'):
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return dict((id, 0.0) for id in ids)
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context = {}
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if (name == 'quantity'
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and Transaction().context.get('stock_date_end')
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and Transaction().context.get('stock_date_end') >
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date_obj.today()):
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context['stock_date_end'] = date_obj.today()
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if name == 'forecast_quantity':
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context['forecast'] = True
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if not Transaction().context.get('stock_date_end'):
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context['stock_date_end'] = datetime.date.max
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with Transaction().set_context(context):
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pbl = self.products_by_location(
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location_ids=Transaction().context['locations'],
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product_ids=ids, with_childs=True)
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res = {}.fromkeys(ids, 0.0)
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for location in Transaction().context['locations']:
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for product in ids:
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res[product] += pbl.get((location, product), 0.0)
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return res
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def _search_quantity_eval_domain(self, line, domain):
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field, operator, operand = domain
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value = line.get(field)
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if value == None:
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return False
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if operator not in ("=", ">=", "<=", ">", "<", "!="):
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return False
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if operator == "=":
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operator= "=="
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return (safe_eval(str(value) + operator + str(operand)))
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def search_quantity(self, name, domain=None):
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date_obj = Pool().get('ir.date')
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if not (Transaction().context.get('locations') and domain):
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return []
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context = {}
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if (name == 'quantity'
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and Transaction().context.get('stock_date_end')
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and Transaction().context.get('stock_date_end') >
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date_obj.today()):
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context['stock_date_end'] = date_obj.today()
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if name == 'forecast_quantity':
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context['forecast'] = True
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if not Transaction().context.get('stock_date_end'):
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context['stock_date_end'] = datetime.date.max
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with Transaction().set_context(context):
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pbl = self.products_by_location(
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location_ids=Transaction().context['locations'],
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with_childs=True, skip_zero=False).iteritems()
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processed_lines = []
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for (location, product), quantity in pbl:
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processed_lines.append({'location': location, #XXX useful ?
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'product': product,
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name: quantity})
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res= [line['product'] for line in processed_lines \
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if self._search_quantity_eval_domain(line, domain)]
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return [('id', 'in', res)]
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def products_by_location(self, location_ids, product_ids=None,
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with_childs=False, skip_zero=True):
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"""
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Compute for each location and product the stock quantity in the default
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uom of the product.
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The context with keys:
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stock_date_end: if set the date of the stock computation.
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stock_date_start: if set return the delta of the stock
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between the two dates, (ignored if stock_date_end is
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missing).
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stock_assign: if set compute also the assigned moves as done.
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forecast: if set compute the forecast quantity.
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stock_destinations: A list of location ids. If set, restrict the
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computation to moves from and to those locations.
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stock_skip_warehouse: if set, quantities on a warehouse are no
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more quantities of all child locations but quantities of the
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storage zone.
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:param location_ids: the ids of locations
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:param product_ids: the ids of the products
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if None all products are used
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:param with_childs: a boolean to compute also for child locations
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:param skip_zero: a boolean to list also items with zero quantity
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:return: a dictionary with (location id, product id) as key
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and quantity as value
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"""
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pool = Pool()
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uom_obj = pool.get("product.uom")
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product_obj = pool.get("product.product")
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rule_obj = pool.get('ir.rule')
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location_obj = pool.get('stock.location')
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date_obj = pool.get('ir.date')
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period_obj = pool.get('stock.period')
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today = date_obj.today()
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if not location_ids:
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return {}
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cursor = Transaction().cursor
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context = Transaction().context.copy()
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# Skip warehouse location in favor of their storage location
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# to compute quantities. Keep track of which ids to remove
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# and to add after the query.
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location_ids = set(location_ids)
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storage_to_remove = set()
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wh_to_add = {}
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for location in location_obj.browse(list(location_ids)):
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if (location.type == 'warehouse'
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and Transaction().context.get('stock_skip_warehouse')):
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location_ids.remove(location.id)
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if location.storage_location.id not in location_ids:
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storage_to_remove.add(location.storage_location.id)
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location_ids.add(location.storage_location.id)
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wh_to_add[location.id] = location.storage_location.id
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location_ids = list(location_ids)
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move_rule_query, move_rule_val = rule_obj.domain_get('stock.move')
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period_clause, period_vals = 'period = %s', [0]
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if not context.get('stock_date_end'):
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context['stock_date_end'] = datetime.date.max
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# date end in the past or today: filter on state done
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if (context['stock_date_end'] < today
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or (context['stock_date_end'] == today
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and not context.get('forecast'))):
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state_date_clause = \
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'('\
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'(state in (%s, %s)) '\
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'AND '\
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'('\
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'('\
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'(effective_date IS NULL) '\
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'AND ' \
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'(planned_date <= %s) '\
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') '\
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'OR '\
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'(effective_date <= %s)'\
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')'\
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')'
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state_date_vals = ["done",
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context.get('stock_assign') and 'assigned' or 'done',
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context['stock_date_end'],
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context['stock_date_end'],
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]
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# future date end: filter move on state done and date
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# before today, or on all state and date between today and
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# date_end.
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else:
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state_date_clause = \
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'(' \
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'('\
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'(state in (%s, %s)) '\
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'AND '\
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'('\
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'('\
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'(effective_date IS NULL) '\
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'AND ' \
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'(planned_date <= %s) '\
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') '\
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'OR '\
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'(effective_date <= %s)' \
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')'\
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')'\
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'OR '\
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'('\
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'(state in (%s, %s, %s)) '\
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'AND '\
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'('\
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'(' \
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'(effective_date IS NULL) '\
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'AND '\
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'(planned_date <= %s) '\
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'AND '\
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'(planned_date >= %s)'\
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')'\
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'OR '\
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'(' \
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'(effective_date <= %s) '\
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'AND '\
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'(effective_date >= %s)'\
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')'\
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')'\
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')'\
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')'
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state_date_vals = [
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'done', context.get('stock_assign') and 'assigned' or 'done',
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today, today,
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'done', 'assigned', 'draft',
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context['stock_date_end'], today,
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context['stock_date_end'], today,
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]
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if context.get('stock_date_start'):
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if context['stock_date_start'] > today:
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state_date_clause += 'AND '\
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'('\
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'(state in (%s, %s, %s)) '\
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'AND '\
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'('\
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'('\
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'(effective_date IS NULL) '\
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'AND '\
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'('\
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'(planned_date >= %s) '\
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'OR '\
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'(planned_date IS NULL)'\
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')'\
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') '\
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'OR '\
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'(effective_date >= %s)'\
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')'\
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')'
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state_date_vals.extend(['done', 'assigned', 'draft',
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context['stock_date_start'], context['stock_date_start']])
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else:
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state_date_clause += 'AND '\
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'('\
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'('\
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'(state in (%s, %s, %s)) '\
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'AND '\
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'('\
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'('\
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'(effective_date IS NULL) '\
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'AND '\
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'('\
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'(planned_date >= %s) '\
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'OR '\
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'(planned_date IS NULL)'\
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') '\
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')'\
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'OR '\
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'(effective_date >= %s)'\
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')'\
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') '\
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'OR '\
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'('\
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'(state in (%s, %s)) '\
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'AND '\
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'('\
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'('\
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'(effective_date IS NULL) '\
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'AND '\
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'('\
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'('\
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'(planned_date >= %s) '\
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'AND '\
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'(planned_date < %s)'\
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') '\
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'OR '\
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'(planned_date IS NULL)'\
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')'\
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') '\
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'OR '\
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'('\
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'(effective_date >= %s) '\
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'AND '\
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'(effective_date < %s)'\
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')'\
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')'\
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')'\
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')'
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state_date_vals.extend(['done', 'assigned', 'draft',
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today, today,
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'done',
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context.get('stock_assign') and 'assigned' or 'done',
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context['stock_date_start'], today,
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context['stock_date_start'], today,
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])
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else:
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period_ids = period_obj.search([
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('date', '<', context['stock_date_end']),
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], order=[('date', 'DESC')], limit=1)
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if period_ids:
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period_id, = period_ids
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period = period_obj.browse(period_id)
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state_date_clause += (' AND '
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'(COALESCE(effective_date, planned_date) > %s)')
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state_date_vals.append(period.date)
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period_vals[0] = period.id
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if with_childs:
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query, args = location_obj.search([
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('parent', 'child_of', location_ids),
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], query_string=True, order=[])
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where_clause = " IN (" + query + ") "
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where_vals = args
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else:
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where_clause = " IN (" + \
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",".join(('%s',) * len(location_ids)) + ") "
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where_vals = location_ids[:]
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if move_rule_query:
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move_rule_query = " AND " + move_rule_query + " "
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product_template_join = ""
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product_template_join_period = ""
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if product_ids:
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where_clause += "AND product in (" + \
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",".join(('%s',) * len(product_ids)) + ")"
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where_vals += product_ids
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else:
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where_clause += "AND product_template.active = %s"
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where_vals.append(True)
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product_template_join = \
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"JOIN product_product "\
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"ON (stock_move.product = product_product.id) "\
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"JOIN product_template "\
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"ON (product_product.template = "\
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"product_template.id) "
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product_template_join_period = (
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"JOIN product_product "
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"ON (stock_period_cache.product = product_product.id) "
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"JOIN product_template "
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"ON (product_product.template = product_template.id) ")
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if context.get('stock_destinations'):
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destinations = context.get('stock_destinations')
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dest_clause_from = " AND from_location in ("
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dest_clause_from += ",".join(('%s',) * len(destinations))
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dest_clause_from += ") "
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dest_clause_to = " AND to_location in ("
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dest_clause_to += ",".join(('%s',) * len(destinations))
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dest_clause_to += ") "
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dest_vals = destinations
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dest_clause_period = (' AND location IN ('
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+ ','.join(('%s',) * len(destinations)) + ') ')
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else:
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dest_clause_from = dest_clause_to = dest_clause_period = ""
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dest_vals = []
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# The main select clause is a union between three similar subqueries.
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# One that sums incoming moves towards locations, one that sums
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# outgoing moves and one for the period cache. UNION ALL is used
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# because we already know that there will be no duplicates.
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select_clause = (
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"SELECT location, product, sum(quantity) AS quantity "
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"FROM ( "
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"SELECT to_location AS location, product, "
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"SUM(internal_quantity) AS quantity "
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"FROM stock_move " + product_template_join + " "
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"WHERE (%s) "
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"AND to_location %s "
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"GROUP BY to_location, product "
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"UNION ALL "
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"SELECT from_location AS location, product, "
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"-SUM(internal_quantity) AS quantity "
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"FROM stock_move " + product_template_join + " "
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"WHERE (%s) "
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"AND from_location %s "
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"GROUP BY from_location, product, uom "
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"UNION ALL "
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"SELECT location, product, internal_quantity AS quantity "
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"FROM stock_period_cache "
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+ product_template_join_period + " "
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"WHERE (%s) "
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"AND location %s "
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") AS T GROUP BY T.location, T.product")
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cursor.execute(select_clause % (
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state_date_clause,
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where_clause + move_rule_query + dest_clause_from,
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state_date_clause,
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where_clause + move_rule_query + dest_clause_to,
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period_clause, where_clause + dest_clause_period),
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state_date_vals + where_vals + move_rule_val + dest_vals + \
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state_date_vals + where_vals + move_rule_val + dest_vals + \
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period_vals + where_vals + dest_vals)
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raw_lines = cursor.fetchall()
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res_product_ids = set(product for _, product, _ in raw_lines)
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res = dict(((location, product), quantity)
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for location, product, quantity in raw_lines)
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# Propagate quantities on from child locations to their parents
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if with_childs:
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# Fetch all child locations
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all_location_ids = location_obj.search([
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('parent', 'child_of', location_ids),
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])
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locations = location_obj.browse(all_location_ids)
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# Generate a set of locations without childs and a dict
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# giving the parent of each location.
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leafs = set(all_location_ids)
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parent = {}
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for location in locations:
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if not location.parent: continue
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if location.parent.id in leafs:
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leafs.remove(location.parent.id)
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parent[location.id] = location.parent.id
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while leafs:
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next_leafs = set()
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for l in leafs:
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if l not in parent:
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continue
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next_leafs.add(parent[l])
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for product in res_product_ids:
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res.setdefault((parent[l], product), 0)
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res[(parent[l], product)] += res.get((l,product), 0)
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leafs = next_leafs
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# clean result
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for location, product in res.keys():
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if location not in location_ids:
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del res[(location, product)]
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# Complete result with missing products if asked
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if not skip_zero:
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# Search for all products, even if not linked with moves
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if product_ids:
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all_product_ids = product_ids
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else:
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all_product_ids = Pool().get("product.product").search([])
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keys = ((l,p) for l in location_ids for p in all_product_ids)
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for location_id, product_id in keys:
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if (location_id, product_id) not in res:
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res[(location_id, product_id)] = 0.0
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if wh_to_add:
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for wh, storage in wh_to_add.iteritems():
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for product in product_ids:
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if (storage, product) in res:
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res[(wh, product)] = res[(storage, product)]
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if storage in storage_to_remove:
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del res[(storage, product)]
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return res
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def view_header_get(self, value, view_type='form'):
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value = super(Product, self).view_header_get(value,
|
|
view_type=view_type)
|
|
if not Transaction().context.get('locations'):
|
|
return value
|
|
location_obj = Pool().get('stock.location')
|
|
locations = location_obj.browse(Transaction().context.get('locations'))
|
|
return value + " (" + ",".join(l.name for l in locations) + ")"
|
|
|
|
Product()
|
|
|
|
|
|
class ChooseStockDateInit(ModelView):
|
|
_name = 'stock.product_stock_date.init'
|
|
_description = "Compute stock quantities"
|
|
forecast_date = fields.Date(
|
|
'At Date', help='Allow to compute expected '\
|
|
'stock quantities for this date.\n'\
|
|
'* An empty value is an infinite date in the future.\n'\
|
|
'* A date in the past will provide historical values.')
|
|
|
|
def default_forecast_date(self):
|
|
date_obj = Pool().get('ir.date')
|
|
return date_obj.today()
|
|
|
|
ChooseStockDateInit()
|
|
|
|
class OpenLocation(Wizard):
|
|
'Products by Locations'
|
|
_name = 'stock.location.open'
|
|
states = {
|
|
'init': {
|
|
'result': {
|
|
'type': 'form',
|
|
'object': 'stock.product_stock_date.init',
|
|
'state': [
|
|
('end', 'Cancel', 'tryton-cancel'),
|
|
('open', 'Open', 'tryton-ok', True),
|
|
],
|
|
},
|
|
},
|
|
'open': {
|
|
'result': {
|
|
'type': 'action',
|
|
'action': '_action_open_location',
|
|
'state': 'end',
|
|
},
|
|
},
|
|
}
|
|
|
|
def _action_open_location(self, data):
|
|
model_data_obj = Pool().get('ir.model.data')
|
|
act_window_obj = Pool().get('ir.action.act_window')
|
|
act_window_id = model_data_obj.get_id('stock',
|
|
'act_location_quantity_tree')
|
|
res = act_window_obj.read(act_window_id)
|
|
|
|
context = {}
|
|
context['product'] = data['id']
|
|
if data['form']['forecast_date']:
|
|
context['stock_date_end'] = data['form']['forecast_date']
|
|
else:
|
|
context['stock_date_end'] = datetime.date.max
|
|
res['pyson_context'] = PYSONEncoder().encode(context)
|
|
|
|
return res
|
|
|
|
OpenLocation()
|