investment/asset.py
2022-11-19 00:21:52 +01:00

346 lines
12 KiB
Python

# -*- coding: utf-8 -*-
# This file is part of the investment-module from m-ds for Tryton.
# The COPYRIGHT file at the top level of this repository contains the
# full copyright notices and license terms.
from trytond.model import ModelView, ModelSQL, fields
from trytond.transaction import Transaction
from trytond.pool import Pool
from trytond.pyson import Eval, Bool, And
from decimal import Decimal
from datetime import time
from sql.functions import CurrentTime
from sql.conditionals import Case
class Asset(ModelSQL, ModelView):
'Asset'
__name__ = 'investment.asset'
company = fields.Many2One(string='Company', model_name='company.company',
required=True, ondelete="RESTRICT")
product = fields.Many2One(string='Product', required=True,
model_name='product.product', ondelete='RESTRICT',
domain=[('type', '=', 'assets')])
product_uom = fields.Function(fields.Many2One(string='UOM Category',
readonly=True, model_name='product.uom.category',
help='Category of unit on the product.'),
'on_change_with_product_uom')
uom = fields.Many2One(string='UOM', required=True,
model_name='product.uom', ondelete='RESTRICT',
states={
'readonly': ~Bool(Eval('product')),
},
domain=[
('category', '=', Eval('product_uom')),
], depends=['product_uom', 'product'])
rates = fields.One2Many(string='Rates', field='asset',
model_name='investment.rate')
rate = fields.Function(fields.Numeric(string='Current Rate',
readonly=True, digits=(16, Eval('currency_digits', 4)),
depends=['currency_digits']), 'on_change_with_rate')
company_currency = fields.Function(fields.Many2One(readonly=True,
string='Company Currency', states={'invisible': True},
model_name='currency.currency'),
'on_change_with_company_currency')
company_currency_digits = fields.Function(fields.Integer(
string='Currency Digits (Ref.)', readonly=True),
'on_change_with_currency_digits')
currency = fields.Many2One(string='Currency', select=True,
required=True, model_name='currency.currency', ondelete='RESTRICT')
currency_digits = fields.Integer(string='Currency Digits',
required=True)
wkn = fields.Function(fields.Char(string='NSIN', readonly=True,
help='National Securities Identifying Number'),
'get_identifiers', searcher='search_identifier')
isin = fields.Function(fields.Char(string='ISIN', readonly=True,
help='International Securities Identification Number'),
'get_identifiers', searcher='search_identifier')
secsymb = fields.Function(fields.Char(string='Symbol', readonly=True,
help='Stock market symbol'),
'get_identifiers', searcher='search_identifier')
updtsource = fields.Many2One(string='Update Source',
help='Select a source for the course update.',
ondelete='SET NULL', model_name='investment.source')
updttime = fields.Time(string='Time',
states={
'readonly': ~Bool(Eval('updtsource')),
}, depends=['updtsource'])
updtneeded = fields.Function(fields.Boolean(string='Course update needed',
readonly=True),
'on_change_with_updtneeded', searcher='search_updtneeded')
@classmethod
def default_currency(cls):
""" currency of company
"""
Company = Pool().get('company.company')
company = cls.default_company()
if company:
company = Company(company)
if company.currency:
return company.currency.id
@staticmethod
def default_company():
return Transaction().context.get('company') or None
@classmethod
def default_currency_digits(cls):
""" default: 4
"""
return 4
@fields.depends('updtsource', 'updttime')
def on_change_updtsource(self):
""" clear time-fields
"""
if self.updtsource is None:
self.updttime = None
else :
self.updttime = time(11, 30)
@fields.depends('id', 'currency_digits')
def on_change_with_rate(self, name=None):
""" get current rate
"""
pool = Pool()
Rate = pool.get('investment.rate')
IrDate = pool.get('ir.date')
if self.id:
rates = Rate.search([
('date', '<=', IrDate.today()),
('asset.id', '=', self.id),
], order=[('date', 'DESC')], limit=1)
if len(rates) > 0:
exp = Decimal(Decimal(1) / 10 ** (self.currency_digits or 4))
return rates[0].rate.quantize(exp)
@fields.depends('product', 'uom')
def on_change_product(self):
""" update unit by product
"""
if self.product:
self.uom = self.product.default_uom
return
self.uom = None
@fields.depends('currency', 'currency_digits')
def on_change_currency(self):
""" update currency_digits by value on currency
"""
if self.currency:
self.currency_digits = self.currency.digits
@fields.depends('product')
def on_change_with_product_uom(self, name=None):
""" get category of product-uom
"""
if self.product:
return self.product.default_uom.category.id
@fields.depends('currency')
def on_change_with_currency_digits(self, name=None):
""" currency of cashbook
"""
if self.currency:
return self.currency.digits
else:
return 2
@fields.depends('company', 'currency')
def on_change_with_company_currency(self, name=None):
""" get company-currency if its different from current
asset-currency
"""
if self.company:
if self.currency:
if self.company.currency.id != self.currency.id:
return self.company.currency.id
@fields.depends('id')
def on_change_with_updtneeded(self, name=None):
""" get state of update
"""
Asset2 = Pool().get('investment.asset')
if self.id:
if Asset2.search_count([
('updtneeded', '=', True),
('id', '=', self.id)
]) == 1:
return True
return False
@classmethod
def search_updtneeded(cls, names, clause):
""" search for assets to update
"""
pool = Pool()
Asset2 = pool.get('investment.asset')
Rate = pool.get('investment.rate')
IrDate = pool.get('ir.date')
tab_asset = Asset2.__table__()
tab_rate = Rate.__table__()
Operator = fields.SQL_OPERATORS[clause[1]]
context = Transaction().context
query_date = context.get('qdate', IrDate.today())
query_time = context.get('qtime', CurrentTime())
query = tab_asset.join(tab_rate,
condition=(tab_asset.id==tab_rate.asset) & \
(tab_rate.date == query_date),
type_ = 'LEFT OUTER',
).select(tab_asset.id,
where=Operator(
Case(
((tab_rate.id == None) & \
(tab_asset.updtsource != None) & \
(tab_asset.updttime <= query_time), True),
default_ = False,
),
clause[2]),
)
return [('id', '=', query)]
@classmethod
def get_identifier_sql(cls, tab_asset):
""" sql-query for identifiers
"""
pool = Pool()
Product = pool.get('product.product')
Identifier = pool.get('product.identifier')
tab_prod = Product.__table__()
tab_wkn = Identifier.__table__()
tab_secsymb = Identifier.__table__()
tab_isin = Identifier.__table__()
query = tab_asset.join(tab_prod,
condition=tab_asset.product==tab_prod.id,
).join(tab_wkn,
condition=(tab_prod.id==tab_wkn.product) & \
(tab_wkn.type == 'wkn'),
type_ = 'LEFT OUTER',
).join(tab_secsymb,
condition=(tab_prod.id==tab_secsymb.product) & \
(tab_secsymb.type == 'secsymb'),
type_ = 'LEFT OUTER',
).join(tab_isin,
condition=(tab_prod.id==tab_isin.product) & \
(tab_isin.type == 'isin'),
type_ = 'LEFT OUTER',
).select(
tab_asset.id,
tab_wkn.code.as_('wkn'),
tab_secsymb.code.as_('secsymb'),
tab_isin.code.as_('isin'),
)
return query
@classmethod
def search_identifier(cls, names, clause):
""" search in identifier
"""
pool = Pool()
Asset = pool.get('investment.asset')
tab_asset = Asset.__table__()
Operator = fields.SQL_OPERATORS[clause[1]]
tab_ids = cls.get_identifier_sql(tab_asset)
field_qu = getattr(tab_ids, names)
query = tab_ids.join(tab_asset,
condition=tab_ids.id==tab_asset.id,
).select(
tab_asset.id,
where=Operator(field_qu, clause[2]) & \
(field_qu != None),
)
return [('id', 'in', query)]
@classmethod
def get_identifiers(cls, assets, names):
""" get identifiers of assets
"""
pool = Pool()
Asset = pool.get('investment.asset')
tab_asset = Asset.__table__()
cursor = Transaction().connection.cursor()
result = {x:{y.id: None for y in assets} for x in names}
query = cls.get_identifier_sql(tab_asset)
query.where = tab_asset.id.in_([x.id for x in assets])
cursor.execute(*query)
l1 = cursor.fetchall()
for x in l1:
(id1, wkn, secsymb, isin) = x
r1 = {'wkn': wkn, 'secsymb': secsymb, 'isin': isin}
for n in names:
result[n][id1] = r1[n]
return result
def get_rec_name(self, name):
if self.product:
return self.product.rec_name
else:
return self.id
@classmethod
def search_rec_name(cls, name, clause):
""" search in rec_name
"""
return [('product.rec_name',) + tuple(clause[1:])]
@classmethod
def cron_update(cls):
""" update asset-rates
"""
pool = Pool()
Asset2 = pool.get('investment.asset')
OnlineSource = pool.get('investment.source')
for asset in Asset2.search([
('updtneeded', '=', True),
]):
OnlineSource.update_rate(asset)
@classmethod
def create(cls, vlist):
""" add debit/credit
"""
vlist = [x.copy() for x in vlist]
for values in vlist:
if 'updtsource' in values.keys():
if values['updtsource'] is None:
values['updttime1'] = None
values['updttime2'] = None
values['updttime3'] = None
return super(Asset, cls).create(vlist)
@classmethod
def write(cls, *args):
""" deny update if cashbook.line!='open',
add or update debit/credit
"""
actions = iter(args)
for lines, values in zip(actions, actions):
if 'updtsource' in values.keys():
if values['updtsource'] is None:
values['updttime1'] = None
values['updttime2'] = None
values['updttime3'] = None
super(Asset, cls).write(*args)
# end Asset