mirror of
https://github.com/ae-utbm/sith3.git
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305 lines
11 KiB
Python
305 lines
11 KiB
Python
from django.core.urlresolvers import reverse
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from django.core.exceptions import ValidationError
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from django.core import validators
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from django.db.models import Count
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from django.db import models
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from django.conf import settings
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from django.utils.translation import ugettext_lazy as _
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from django.template import defaultfilters
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from decimal import Decimal
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from core.models import User, SithFile
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from club.models import Club
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class CurrencyField(models.DecimalField):
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"""
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This is a custom database field used for currency
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"""
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__metaclass__ = models.SubfieldBase
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def __init__(self, *args, **kwargs):
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kwargs['max_digits'] = 12
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kwargs['decimal_places'] = 2
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super(CurrencyField, self).__init__(*args, **kwargs)
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def to_python(self, value):
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try:
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return super(CurrencyField, self).to_python(value).quantize(Decimal("0.01"))
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except AttributeError:
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return None
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# Accounting classes
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class Company(models.Model):
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name = models.CharField(_('name'), max_length=60)
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class Meta:
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verbose_name = _("company")
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def get_absolute_url(self):
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return reverse('accounting:co_edit', kwargs={'co_id': self.id})
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def get_display_name(self):
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return self.name
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class BankAccount(models.Model):
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name = models.CharField(_('name'), max_length=30)
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iban = models.CharField(_('iban'), max_length=255, blank=True)
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number = models.CharField(_('account number'), max_length=255, blank=True)
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club = models.ForeignKey(Club, related_name="bank_accounts", verbose_name=_("club"))
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def is_owned_by(self, user):
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"""
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Method to see if that object can be edited by the given user
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"""
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if user.is_in_group(settings.SITH_GROUPS['accounting-admin']['name']):
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return True
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m = self.club.get_membership_for(user)
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if m is not None and m.role >= 7:
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return True
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return False
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def get_absolute_url(self):
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return reverse('accounting:bank_details', kwargs={'b_account_id': self.id})
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def __str__(self):
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return self.name
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class ClubAccount(models.Model):
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name = models.CharField(_('name'), max_length=30)
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club = models.ForeignKey(Club, related_name="club_account", verbose_name=_("club"))
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bank_account = models.ForeignKey(BankAccount, related_name="club_accounts", verbose_name=_("bank account"))
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def is_owned_by(self, user):
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"""
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Method to see if that object can be edited by the given user
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"""
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if user.is_in_group(settings.SITH_GROUPS['accounting-admin']['name']):
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return True
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return False
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def can_be_edited_by(self, user):
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"""
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Method to see if that object can be edited by the given user
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"""
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m = self.club.get_membership_for(user)
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if m is not None and m.role >= 7:
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return True
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return False
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def has_open_journal(self):
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for j in self.journals.all():
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if not j.closed:
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return True
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return False
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def get_open_journal(self):
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return self.journals.filter(closed=False).first()
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def get_absolute_url(self):
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return reverse('accounting:club_details', kwargs={'c_account_id': self.id})
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def __str__(self):
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return self.name
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def get_display_name(self):
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return _("%(club_account)s on %(bank_account)s") % {"club_account": self.name, "bank_account": self.bank_account}
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class GeneralJournal(models.Model):
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"""
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Class storing all the operations for a period of time
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"""
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start_date = models.DateField(_('start date'))
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end_date = models.DateField(_('end date'), null=True, blank=True, default=None)
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name = models.CharField(_('name'), max_length=40)
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closed = models.BooleanField(_('is closed'), default=False)
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club_account = models.ForeignKey(ClubAccount, related_name="journals", null=False, verbose_name=_("club account"))
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amount = CurrencyField(_('amount'), default=0)
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effective_amount = CurrencyField(_('effective_amount'), default=0)
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def is_owned_by(self, user):
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"""
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Method to see if that object can be edited by the given user
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"""
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if user.is_in_group(settings.SITH_GROUPS['accounting-admin']['name']):
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return True
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if self.club_account.can_be_edited_by(user):
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return True
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return False
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def get_absolute_url(self):
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return reverse('accounting:journal_details', kwargs={'j_id': self.id})
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def __str__(self):
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return self.name
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def update_amounts(self):
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self.amount = 0
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self.effective_amount = 0
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for o in self.operations.all():
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if o.accounting_type.movement_type == "CREDIT":
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if o.done:
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self.effective_amount += o.amount
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self.amount += o.amount
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else:
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if o.done:
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self.effective_amount -= o.amount
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self.amount -= o.amount
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self.save()
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class Operation(models.Model):
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"""
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An operation is a line in the journal, a debit or a credit
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"""
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number = models.IntegerField(_('number'))
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journal = models.ForeignKey(GeneralJournal, related_name="operations", null=False, verbose_name=_("journal"))
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amount = CurrencyField(_('amount'))
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date = models.DateField(_('date'))
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remark = models.CharField(_('comment'), max_length=128)
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mode = models.CharField(_('payment method'), max_length=255, choices=settings.SITH_ACCOUNTING_PAYMENT_METHOD)
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cheque_number = models.CharField(_('cheque number'), max_length=32, default="", null=True, blank=True)
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invoice = models.ForeignKey(SithFile, related_name='operations', verbose_name=_("invoice"), null=True, blank=True)
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done = models.BooleanField(_('is done'), default=False)
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simpleaccounting_type = models.ForeignKey('SimplifiedAccountingType', related_name="operations",
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verbose_name=_("simple type"), null=True, blank=True)
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accounting_type = models.ForeignKey('AccountingType', related_name="operations",
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verbose_name=_("accounting type"), null=True, blank=True)
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target_type = models.CharField(_('target type'), max_length=10,
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choices=[('USER', _('User')), ('CLUB', _('Club')), ('ACCOUNT', _('Account')), ('COMPANY', _('Company')), ('OTHER', _('Other'))])
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target_id = models.IntegerField(_('target id'), null=True, blank=True)
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target_label = models.CharField(_('target label'), max_length=32, default="", blank=True)
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linked_operation = models.OneToOneField('self', related_name='operation_linked_to', verbose_name=_("linked operation"),
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null=True, blank=True, default=None)
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class Meta:
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unique_together = ('number', 'journal')
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ordering = ['-number']
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def __getattribute__(self, attr):
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if attr == "target":
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return self.get_target()
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else:
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return object.__getattribute__(self, attr)
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def clean(self):
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super(Operation, self).clean()
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if self.date < self.journal.start_date:
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raise ValidationError(_("""The date can not be before the start date of the journal, which is
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%(start_date)s.""") % {'start_date': defaultfilters.date(self.journal.start_date, settings.DATE_FORMAT)})
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if self.target_type != "OTHER" and self.get_target() is None:
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raise ValidationError(_("Target does not exists"))
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if self.target_type == "OTHER" and self.target_label == "":
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raise ValidationError(_("Please add a target label if you set no existing target"))
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if not self.accounting_type and not self.simpleaccounting_type:
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raise ValidationError(_("You need to provide ether a simplified accounting type or a standard accounting type"))
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if self.simpleaccounting_type:
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self.accounting_type = self.simpleaccounting_type.accounting_type
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@property
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def target(self):
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return self.get_target()
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def get_target(self):
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tar = None
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if self.target_type == "USER":
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tar = User.objects.filter(id=self.target_id).first()
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elif self.target_type == "CLUB":
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tar = Club.objects.filter(id=self.target_id).first()
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elif self.target_type == "ACCOUNT":
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tar = ClubAccount.objects.filter(id=self.target_id).first()
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elif self.target_type == "COMPANY":
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tar = Company.objects.filter(id=self.target_id).first()
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return tar
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def save(self):
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if self.number is None:
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self.number = self.journal.operations.count() + 1
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super(Operation, self).save()
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self.journal.update_amounts()
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def is_owned_by(self, user):
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"""
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Method to see if that object can be edited by the given user
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"""
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if user.is_in_group(settings.SITH_GROUPS['accounting-admin']['name']):
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return True
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if self.journal.closed:
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return False
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m = self.journal.club_account.club.get_membership_for(user)
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if m is not None and m.role >= 7:
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return True
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return False
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def can_be_edited_by(self, user):
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"""
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Method to see if that object can be edited by the given user
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"""
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if self.is_owned_by(user):
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return True
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return False
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def get_absolute_url(self):
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return reverse('accounting:journal_details', kwargs={'j_id': self.journal.id})
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def __str__(self):
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return "%d € | %s | %s | %s" % (
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self.amount, self.date, self.accounting_type, self.done,
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)
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class AccountingType(models.Model):
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"""
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Class describing the accounting types.
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Thoses are numbers used in accounting to classify operations
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"""
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code = models.CharField(_('code'), max_length=16,
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validators=[
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validators.RegexValidator(r'^[0-9]*$', _('An accounting type code contains only numbers')),
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],
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)
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label = models.CharField(_('label'), max_length=128)
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movement_type = models.CharField(_('movement type'), choices=[('CREDIT', 'Credit'), ('DEBIT', 'Debit'), ('NEUTRAL', 'Neutral')], max_length=12)
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class Meta:
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verbose_name = _("accounting type")
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def is_owned_by(self, user):
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"""
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Method to see if that object can be edited by the given user
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"""
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if user.is_in_group(settings.SITH_GROUPS['accounting-admin']['name']):
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return True
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return False
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def get_absolute_url(self):
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return reverse('accounting:type_list')
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def __str__(self):
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return self.code+" - "+self.movement_type+" - "+self.label
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class SimplifiedAccountingType(models.Model):
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"""
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Class describing the simplified accounting types.
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"""
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label = models.CharField(_('label'), max_length=128)
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accounting_type = models.ForeignKey(AccountingType, related_name="simplified_types",
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verbose_name=_("simplified accounting types"))
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class Meta:
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verbose_name = _("simplified type")
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@property
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def movement_type(self):
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return self.accounting_type.movement_type
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def get_movement_type_display(self):
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return self.accounting_type.get_movement_type_display()
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def get_absolute_url(self):
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return reverse('accounting:simple_type_list')
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def __str__(self):
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return self.label+" - "+self.accounting_type.code+" - "+self.get_movement_type_display()
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