Python django.db.models.DateTimeField() Examples

The following are 30 code examples of django.db.models.DateTimeField(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module django.db.models , or try the search function .
Example #1
Source Project: GTDWeb   Author: lanbing510   File: dates.py    License: GNU General Public License v2.0 6 votes vote down vote up
def _make_single_date_lookup(self, date):
        """
        Get the lookup kwargs for filtering on a single date.

        If the date field is a DateTimeField, we can't just filter on
        date_field=date because that doesn't take the time into account.
        """
        date_field = self.get_date_field()
        if self.uses_datetime_field:
            since = self._make_date_lookup_arg(date)
            until = self._make_date_lookup_arg(date + datetime.timedelta(days=1))
            return {
                '%s__gte' % date_field: since,
                '%s__lt' % date_field: until,
            }
        else:
            # Skip self._make_date_lookup_arg, it's a no-op in this branch.
            return {date_field: date} 
Example #2
Source Project: GTDWeb   Author: lanbing510   File: operations.py    License: GNU General Public License v2.0 6 votes vote down vote up
def value_to_db_datetime(self, value):
        """
        Transform a datetime value to an object compatible with what is expected
        by the backend driver for datetime columns.

        If naive datetime is passed assumes that is in UTC. Normally Django
        models.DateTimeField makes sure that if USE_TZ is True passed datetime
        is timezone aware.
        """

        if value is None:
            return None

        # cx_Oracle doesn't support tz-aware datetimes
        if timezone.is_aware(value):
            if settings.USE_TZ:
                value = value.astimezone(timezone.utc).replace(tzinfo=None)
            else:
                raise ValueError("Oracle backend does not support timezone-aware datetimes when USE_TZ is False.")

        return Oracle_datetime.from_datetime(value) 
Example #3
Source Project: GTDWeb   Author: lanbing510   File: utils.py    License: GNU General Public License v2.0 6 votes vote down vote up
def display_for_field(value, field):
    from django.contrib.admin.templatetags.admin_list import _boolean_icon
    from django.contrib.admin.views.main import EMPTY_CHANGELIST_VALUE

    if field.flatchoices:
        return dict(field.flatchoices).get(value, EMPTY_CHANGELIST_VALUE)
    # NullBooleanField needs special-case null-handling, so it comes
    # before the general null test.
    elif isinstance(field, models.BooleanField) or isinstance(field, models.NullBooleanField):
        return _boolean_icon(value)
    elif value is None:
        return EMPTY_CHANGELIST_VALUE
    elif isinstance(field, models.DateTimeField):
        return formats.localize(timezone.template_localtime(value))
    elif isinstance(field, (models.DateField, models.TimeField)):
        return formats.localize(value)
    elif isinstance(field, models.DecimalField):
        return formats.number_format(value, field.decimal_places)
    elif isinstance(field, models.FloatField):
        return formats.number_format(value)
    elif isinstance(field, models.FileField) and value:
        return format_html('<a href="{}">{}</a>', value.url, value)
    else:
        return smart_text(value) 
Example #4
Source Project: GTDWeb   Author: lanbing510   File: checks.py    License: GNU General Public License v2.0 6 votes vote down vote up
def _check_date_hierarchy(self, cls, model):
        """ Check that date_hierarchy refers to DateField or DateTimeField. """

        if cls.date_hierarchy is None:
            return []
        else:
            try:
                field = model._meta.get_field(cls.date_hierarchy)
            except FieldDoesNotExist:
                return refer_to_missing_field(option='date_hierarchy',
                                              field=cls.date_hierarchy,
                                              model=model, obj=cls, id='admin.E127')
            else:
                if not isinstance(field, (models.DateField, models.DateTimeField)):
                    return must_be('a DateField or DateTimeField', option='date_hierarchy',
                                   obj=cls, id='admin.E128')
                else:
                    return [] 
Example #5
Source Project: GTDWeb   Author: lanbing510   File: validation.py    License: GNU General Public License v2.0 6 votes vote down vote up
def validate_prepopulated_fields(self, cls, model):
        " Validate that prepopulated_fields if a dictionary  containing allowed field types. "
        # prepopulated_fields
        if hasattr(cls, 'prepopulated_fields'):
            check_isdict(cls, 'prepopulated_fields', cls.prepopulated_fields)
            for field, val in cls.prepopulated_fields.items():
                f = get_field(cls, model, 'prepopulated_fields', field)
                if isinstance(f, (models.DateTimeField, models.ForeignKey,
                        models.ManyToManyField)):
                    raise ImproperlyConfigured("'%s.prepopulated_fields['%s']' "
                            "is either a DateTimeField, ForeignKey or "
                            "ManyToManyField. This isn't allowed."
                            % (cls.__name__, field))
                check_isseq(cls, "prepopulated_fields['%s']" % field, val)
                for idx, f in enumerate(val):
                    get_field(cls, model, "prepopulated_fields['%s'][%d]" % (field, idx), f) 
Example #6
Source Project: bioforum   Author: reBiocoder   File: dates.py    License: MIT License 6 votes vote down vote up
def _make_single_date_lookup(self, date):
        """
        Get the lookup kwargs for filtering on a single date.

        If the date field is a DateTimeField, we can't just filter on
        date_field=date because that doesn't take the time into account.
        """
        date_field = self.get_date_field()
        if self.uses_datetime_field:
            since = self._make_date_lookup_arg(date)
            until = self._make_date_lookup_arg(date + datetime.timedelta(days=1))
            return {
                '%s__gte' % date_field: since,
                '%s__lt' % date_field: until,
            }
        else:
            # Skip self._make_date_lookup_arg, it's a no-op in this branch.
            return {date_field: date} 
Example #7
Source Project: bioforum   Author: reBiocoder   File: operations.py    License: MIT License 6 votes vote down vote up
def adapt_datetimefield_value(self, value):
        """
        Transform a datetime value to an object compatible with what is expected
        by the backend driver for datetime columns.

        If naive datetime is passed assumes that is in UTC. Normally Django
        models.DateTimeField makes sure that if USE_TZ is True passed datetime
        is timezone aware.
        """

        if value is None:
            return None

        # Expression values are adapted by the database.
        if hasattr(value, 'resolve_expression'):
            return value

        # cx_Oracle doesn't support tz-aware datetimes
        if timezone.is_aware(value):
            if settings.USE_TZ:
                value = timezone.make_naive(value, self.connection.timezone)
            else:
                raise ValueError("Oracle backend does not support timezone-aware datetimes when USE_TZ is False.")

        return Oracle_datetime.from_datetime(value) 
Example #8
Source Project: bioforum   Author: reBiocoder   File: query.py    License: MIT License 6 votes vote down vote up
def datetimes(self, field_name, kind, order='ASC', tzinfo=None):
        """
        Return a list of datetime objects representing all available
        datetimes for the given field_name, scoped to 'kind'.
        """
        assert kind in ("year", "month", "day", "hour", "minute", "second"), \
            "'kind' must be one of 'year', 'month', 'day', 'hour', 'minute' or 'second'."
        assert order in ('ASC', 'DESC'), \
            "'order' must be either 'ASC' or 'DESC'."
        if settings.USE_TZ:
            if tzinfo is None:
                tzinfo = timezone.get_current_timezone()
        else:
            tzinfo = None
        return self.annotate(
            datetimefield=Trunc(field_name, kind, output_field=DateTimeField(), tzinfo=tzinfo),
            plain_field=F(field_name)
        ).values_list(
            'datetimefield', flat=True
        ).distinct().filter(plain_field__isnull=False).order_by(('-' if order == 'DESC' else '') + 'datetimefield') 
Example #9
Source Project: bioforum   Author: reBiocoder   File: utils.py    License: MIT License 6 votes vote down vote up
def display_for_field(value, field, empty_value_display):
    from django.contrib.admin.templatetags.admin_list import _boolean_icon

    if getattr(field, 'flatchoices', None):
        return dict(field.flatchoices).get(value, empty_value_display)
    # NullBooleanField needs special-case null-handling, so it comes
    # before the general null test.
    elif isinstance(field, (models.BooleanField, models.NullBooleanField)):
        return _boolean_icon(value)
    elif value is None:
        return empty_value_display
    elif isinstance(field, models.DateTimeField):
        return formats.localize(timezone.template_localtime(value))
    elif isinstance(field, (models.DateField, models.TimeField)):
        return formats.localize(value)
    elif isinstance(field, models.DecimalField):
        return formats.number_format(value, field.decimal_places)
    elif isinstance(field, (models.IntegerField, models.FloatField)):
        return formats.number_format(value)
    elif isinstance(field, models.FileField) and value:
        return format_html('<a href="{}">{}</a>', value.url, value)
    else:
        return display_for_value(value, empty_value_display) 
Example #10
Source Project: bioforum   Author: reBiocoder   File: checks.py    License: MIT License 6 votes vote down vote up
def _check_prepopulated_fields_key(self, obj, model, field_name, label):
        """ Check a key of `prepopulated_fields` dictionary, i.e. check that it
        is a name of existing field and the field is one of the allowed types.
        """

        try:
            field = model._meta.get_field(field_name)
        except FieldDoesNotExist:
            return refer_to_missing_field(field=field_name, option=label,
                                          model=model, obj=obj, id='admin.E027')
        else:
            if isinstance(field, (models.DateTimeField, models.ForeignKey, models.ManyToManyField)):
                return [
                    checks.Error(
                        "The value of '%s' refers to '%s', which must not be a DateTimeField, "
                        "a ForeignKey, a OneToOneField, or a ManyToManyField." % (label, field_name),
                        obj=obj.__class__,
                        id='admin.E028',
                    )
                ]
            else:
                return [] 
Example #11
Source Project: pasportaservo   Author: tejoesperanto   File: 0029_tracking_fields_using_datetime.py    License: GNU Affero General Public License v3.0 6 votes vote down vote up
def populate_tracking_fields(apps, schema_editor):
    managers = [
        apps.get_model('hosting', 'Phone')._default_manager.all(),
        apps.get_model('hosting', 'Place')._default_manager.all(),
        apps.get_model('hosting', 'Profile')._default_manager.all(),
        apps.get_model('hosting', 'Website')._default_manager.all(),
    ]

    for objects in managers:
        objects.update(
            deleted_on=Case(
                When(deleted=False, then=None),
                default=F('modified'),
                output_field=DateTimeField())
        )
        objects.update(
            checked_on=Case(
                When(checked=False, then=None),
                default=F('modified'),
                output_field=DateTimeField())
        ) 
Example #12
Source Project: urbanfootprint   Author: CalthorpeAnalytics   File: feature_class_creator.py    License: GNU General Public License v3.0 6 votes vote down vote up
def resolve_field(meta):
        type = meta['type']
        rest = merge(filter_dict(
            # Don't allow default='SEQUENCE'
            lambda key, value: not (key=='default' and value=='SEQUENCE'),
            # Ignore these keys
            remove_keys(meta, ['type', 'auto_populate', 'visible', 'geometry_type', 'nullable'])
        ), dict(null=True))
        if type=='string':
            return models.CharField(**rest)
        elif type=='integer':
            return models.IntegerField(**rest)
        elif type=='float':
            return models.FloatField(**rest)
        elif type=='biginteger':
            return models.BigIntegerField(**rest)
        elif type=='geometry':
            return models.GeometryField(geography=False, **rest)
        elif type=='date':
            return models.DateField(**rest)
        elif type=='datetime':
            return models.DateTimeField(**rest) 
Example #13
Source Project: ishare   Author: jeeyshe   File: simpletags.py    License: MIT License 6 votes vote down vote up
def load_dates(context):
    data = {}
    cl = context.get('cl')
    if cl.has_filters:
        for spec in cl.filter_specs:
            # 自定义的filter,没有field
            if not hasattr(spec, 'field'):
                continue

            field = spec.field
            field_type = None
            if isinstance(field, models.DateTimeField):
                field_type = 'datetime'
            elif isinstance(field, models.DateField):
                field_type = 'date'
            elif isinstance(field, models.TimeField):
                field_type = 'time'

            if field_type:
                data[spec.field_path] = field_type
    context['date_field'] = data

    return '<script type="text/javascript">var searchDates={}</script>'.format(json.dumps(data, cls=LazyEncoder)) 
Example #14
Source Project: Hands-On-Application-Development-with-PyCharm   Author: PacktPublishing   File: dates.py    License: MIT License 6 votes vote down vote up
def _make_single_date_lookup(self, date):
        """
        Get the lookup kwargs for filtering on a single date.

        If the date field is a DateTimeField, we can't just filter on
        date_field=date because that doesn't take the time into account.
        """
        date_field = self.get_date_field()
        if self.uses_datetime_field:
            since = self._make_date_lookup_arg(date)
            until = self._make_date_lookup_arg(date + datetime.timedelta(days=1))
            return {
                '%s__gte' % date_field: since,
                '%s__lt' % date_field: until,
            }
        else:
            # Skip self._make_date_lookup_arg, it's a no-op in this branch.
            return {date_field: date} 
Example #15
Source Project: Hands-On-Application-Development-with-PyCharm   Author: PacktPublishing   File: operations.py    License: MIT License 6 votes vote down vote up
def adapt_datetimefield_value(self, value):
        """
        Transform a datetime value to an object compatible with what is expected
        by the backend driver for datetime columns.

        If naive datetime is passed assumes that is in UTC. Normally Django
        models.DateTimeField makes sure that if USE_TZ is True passed datetime
        is timezone aware.
        """

        if value is None:
            return None

        # Expression values are adapted by the database.
        if hasattr(value, 'resolve_expression'):
            return value

        # cx_Oracle doesn't support tz-aware datetimes
        if timezone.is_aware(value):
            if settings.USE_TZ:
                value = timezone.make_naive(value, self.connection.timezone)
            else:
                raise ValueError("Oracle backend does not support timezone-aware datetimes when USE_TZ is False.")

        return Oracle_datetime.from_datetime(value) 
Example #16
Source Project: Hands-On-Application-Development-with-PyCharm   Author: PacktPublishing   File: query.py    License: MIT License 6 votes vote down vote up
def datetimes(self, field_name, kind, order='ASC', tzinfo=None):
        """
        Return a list of datetime objects representing all available
        datetimes for the given field_name, scoped to 'kind'.
        """
        assert kind in ('year', 'month', 'week', 'day', 'hour', 'minute', 'second'), \
            "'kind' must be one of 'year', 'month', 'week', 'day', 'hour', 'minute', or 'second'."
        assert order in ('ASC', 'DESC'), \
            "'order' must be either 'ASC' or 'DESC'."
        if settings.USE_TZ:
            if tzinfo is None:
                tzinfo = timezone.get_current_timezone()
        else:
            tzinfo = None
        return self.annotate(
            datetimefield=Trunc(field_name, kind, output_field=DateTimeField(), tzinfo=tzinfo),
            plain_field=F(field_name)
        ).values_list(
            'datetimefield', flat=True
        ).distinct().filter(plain_field__isnull=False).order_by(('-' if order == 'DESC' else '') + 'datetimefield') 
Example #17
Source Project: Hands-On-Application-Development-with-PyCharm   Author: PacktPublishing   File: utils.py    License: MIT License 6 votes vote down vote up
def display_for_field(value, field, empty_value_display):
    from django.contrib.admin.templatetags.admin_list import _boolean_icon

    if getattr(field, 'flatchoices', None):
        return dict(field.flatchoices).get(value, empty_value_display)
    # BooleanField needs special-case null-handling, so it comes before the
    # general null test.
    elif isinstance(field, models.BooleanField):
        return _boolean_icon(value)
    elif value is None:
        return empty_value_display
    elif isinstance(field, models.DateTimeField):
        return formats.localize(timezone.template_localtime(value))
    elif isinstance(field, (models.DateField, models.TimeField)):
        return formats.localize(value)
    elif isinstance(field, models.DecimalField):
        return formats.number_format(value, field.decimal_places)
    elif isinstance(field, (models.IntegerField, models.FloatField)):
        return formats.number_format(value)
    elif isinstance(field, models.FileField) and value:
        return format_html('<a href="{}">{}</a>', value.url, value)
    else:
        return display_for_value(value, empty_value_display) 
Example #18
Source Project: Hands-On-Application-Development-with-PyCharm   Author: PacktPublishing   File: checks.py    License: MIT License 6 votes vote down vote up
def _check_prepopulated_fields_key(self, obj, model, field_name, label):
        """ Check a key of `prepopulated_fields` dictionary, i.e. check that it
        is a name of existing field and the field is one of the allowed types.
        """

        try:
            field = model._meta.get_field(field_name)
        except FieldDoesNotExist:
            return refer_to_missing_field(field=field_name, option=label,
                                          model=model, obj=obj, id='admin.E027')
        else:
            if isinstance(field, (models.DateTimeField, models.ForeignKey, models.ManyToManyField)):
                return [
                    checks.Error(
                        "The value of '%s' refers to '%s', which must not be a DateTimeField, "
                        "a ForeignKey, a OneToOneField, or a ManyToManyField." % (label, field_name),
                        obj=obj.__class__,
                        id='admin.E028',
                    )
                ]
            else:
                return [] 
Example #19
Source Project: django-andablog   Author: WimpyAnalytics   File: 0002_auto_20150507_1708.py    License: BSD 2-Clause "Simplified" License 6 votes vote down vote up
def get_operations():
    """
    This will break things if you upgrade Django to 1.8 having already applied this migration in 1.7.
    Since this is for a demo site it doesn't really matter (simply blow away the DB if you want to go to 1.8)

    Our demo site is a unusual in that we want to run it's tests (for integration testing) in multiple Django versions.
    Typical sites don't have to worry about that sort of thing.
    """
    compatible = (1, 8) <= DJANGO_VERSION < (1, 10)
    if not compatible:
        return []

    return [
        migrations.AlterField(
            model_name='user',
            name='groups',
            field=models.ManyToManyField(related_query_name='user', related_name='user_set', to='auth.Group', blank=True, help_text='The groups this user belongs to. A user will get all permissions granted to each of their groups.', verbose_name='groups'),
        ),
        migrations.AlterField(
            model_name='user',
            name='last_login',
            field=models.DateTimeField(null=True, verbose_name='last login', blank=True),
        ),
    ] 
Example #20
Source Project: python   Author: Yeah-Kun   File: dates.py    License: Apache License 2.0 6 votes vote down vote up
def _make_single_date_lookup(self, date):
        """
        Get the lookup kwargs for filtering on a single date.

        If the date field is a DateTimeField, we can't just filter on
        date_field=date because that doesn't take the time into account.
        """
        date_field = self.get_date_field()
        if self.uses_datetime_field:
            since = self._make_date_lookup_arg(date)
            until = self._make_date_lookup_arg(date + datetime.timedelta(days=1))
            return {
                '%s__gte' % date_field: since,
                '%s__lt' % date_field: until,
            }
        else:
            # Skip self._make_date_lookup_arg, it's a no-op in this branch.
            return {date_field: date} 
Example #21
Source Project: python   Author: Yeah-Kun   File: operations.py    License: Apache License 2.0 6 votes vote down vote up
def adapt_datetimefield_value(self, value):
        """
        Transform a datetime value to an object compatible with what is expected
        by the backend driver for datetime columns.

        If naive datetime is passed assumes that is in UTC. Normally Django
        models.DateTimeField makes sure that if USE_TZ is True passed datetime
        is timezone aware.
        """

        if value is None:
            return None

        # Expression values are adapted by the database.
        if hasattr(value, 'resolve_expression'):
            return value

        # cx_Oracle doesn't support tz-aware datetimes
        if timezone.is_aware(value):
            if settings.USE_TZ:
                value = timezone.make_naive(value, self.connection.timezone)
            else:
                raise ValueError("Oracle backend does not support timezone-aware datetimes when USE_TZ is False.")

        return Oracle_datetime.from_datetime(value) 
Example #22
Source Project: StormOnline   Author: stormsha   File: util.py    License: Apache License 2.0 5 votes vote down vote up
def display_for_field(value, field):
    from xadmin.views.list import EMPTY_CHANGELIST_VALUE

    if field.flatchoices:
        return dict(field.flatchoices).get(value, EMPTY_CHANGELIST_VALUE)
    # NullBooleanField needs special-case null-handling, so it comes
    # before the general null test.
    elif isinstance(field, models.BooleanField) or isinstance(field, models.NullBooleanField):
        return boolean_icon(value)
    elif value is None:
        return EMPTY_CHANGELIST_VALUE
    elif isinstance(field, models.DateTimeField):
        return formats.localize(tz_localtime(value))
    elif isinstance(field, (models.DateField, models.TimeField)):
        return formats.localize(value)
    elif isinstance(field, models.DecimalField):
        return formats.number_format(value, field.decimal_places)
    elif isinstance(field, models.FloatField):
        return formats.number_format(value)
    elif isinstance(field.rel, models.ManyToManyRel):
        return ', '.join([smart_text(obj) for obj in value.all()])
    else:
        return smart_text(value) 
Example #23
Source Project: django-idcops   Author: Wenvki   File: utils.py    License: Apache License 2.0 5 votes vote down vote up
def display_for_field(value, field, html=True, only_date=True):
    if getattr(field, 'flatchoices', None):
        if html and field.name == 'color' and value:
            return make_color_icon(value)
        return dict(field.flatchoices).get(value, '')
    elif html and (isinstance(field, (models.BooleanField, models.NullBooleanField))):
        return make_boolean_icon(value)
    elif isinstance(field, (models.BooleanField, models.NullBooleanField)):
        boolchoice = {False: "否", True: "是"}
        return boolchoice.get(value)
    elif value is None:
        return ""
    elif isinstance(field, models.DecimalField):
        return formats.number_format(value, field.decimal_places)
    elif isinstance(field, (models.IntegerField, models.FloatField)):
        return formats.number_format(value)
    elif isinstance(field, models.ForeignKey) and value:
        rel_obj = field.related_model.objects.get(pk=value)
        if html and COLOR_FK_FIELD and isinstance(rel_obj, Option):
            text_color = rel_obj.color
            if not text_color:
                text_color = 'text-info'
            safe_value = format_html(
                '<span class="text-{}">{}</span>', text_color, rel_obj.text)
            return safe_value
        return force_text(rel_obj)
    elif isinstance(field, models.TextField) and value:
        return force_text(value)
    elif isinstance(field, models.DateTimeField):
        if only_date:
            return formats.date_format(value)
        return formats.localize(timezone.template_localtime(value))
    elif isinstance(field, (models.DateField, models.TimeField)):
        return formats.localize(value)
    elif isinstance(field, models.FileField) and value:
        return format_html('<a href="{}">{}</a>', value.url, value)
    else:
        return display_for_value(value) 
Example #24
Source Project: django-angularjs-blog   Author: bluedazzle   File: test_Serializer.py    License: BSD 2-Clause "Simplified" License 5 votes vote down vote up
def setUp(self):
        self.time_func = TimeFormatFactory.get_time_func('string')
        # DATABASES = {
        #     'default': {
        #     'ENGINE': 'django.db.backends.sqlite3',
        #     'NAME': ':memory:',
        #     'USER': '',                      # Not used with sqlite3.
        #     'PASSWORD': '',                  # Not used with sqlite3.
        #     'HOST': '',                      # Set to empty string for localhost. Not used with sqlite3.
        #     'PORT': '',
        #     }
        # }
        # settings.configure(DATABASES=DATABASES, DEBUG=True)
        # class TestAuthor(models.Model):
        #     name = models.CharField(default='test_author')
        #
        #     def __unicode__(self):
        #         return self.name
        #
        # class TestTags(models.Model):
        #     tag = models.CharField(default='test_tag')
        #     create_time = models.DateTimeField(auto_now=True)
        #
        # class TestArticle(models.Model):
        #     title = models.CharField(default='test')
        #     content = models.CharField(default='test')
        #     author = models.ForeignKey(TestAuthor, related_name='author_art')
        #     tags = models.ManyToManyField(TestTags, related_name='tag_art')
        #     create_time = models.DateTimeField(auto_now=True)
        #
        #
        # self.author = TestAuthor()
        # self.author.save()
        # tags = TestTags(tag='tag1')
        # tags.save()
        # self.article = TestArticle(author=self.author)
        # self.article.tags.add(tags)
        # self.article.save() 
Example #25
Source Project: GTDWeb   Author: lanbing510   File: dates.py    License: GNU General Public License v2.0 5 votes vote down vote up
def uses_datetime_field(self):
        """
        Return `True` if the date field is a `DateTimeField` and `False`
        if it's a `DateField`.
        """
        model = self.get_queryset().model if self.model is None else self.model
        field = model._meta.get_field(self.get_date_field())
        return isinstance(field, models.DateTimeField) 
Example #26
Source Project: GTDWeb   Author: lanbing510   File: dates.py    License: GNU General Public License v2.0 5 votes vote down vote up
def _make_date_lookup_arg(self, value):
        """
        Convert a date into a datetime when the date field is a DateTimeField.

        When time zone support is enabled, `date` is assumed to be in the
        current time zone, so that displayed items are consistent with the URL.
        """
        if self.uses_datetime_field:
            value = datetime.datetime.combine(value, datetime.time.min)
            if settings.USE_TZ:
                value = timezone.make_aware(value, timezone.get_current_timezone())
        return value 
Example #27
Source Project: GTDWeb   Author: lanbing510   File: lookups.py    License: GNU General Public License v2.0 5 votes vote down vote up
def process_lhs(self, compiler, connection, lhs=None):
        from django.db.models import DateTimeField
        lhs, params = super(DateLookup, self).process_lhs(compiler, connection, lhs)
        if isinstance(self.lhs.output_field, DateTimeField):
            tzname = timezone.get_current_timezone_name() if settings.USE_TZ else None
            sql, tz_params = connection.ops.datetime_extract_sql(self.extract_type, lhs, tzname)
            return connection.ops.lookup_cast(self.lookup_name) % sql, tz_params
        else:
            return connection.ops.date_extract_sql(self.lookup_name, lhs), [] 
Example #28
Source Project: GTDWeb   Author: lanbing510   File: checks.py    License: GNU General Public License v2.0 5 votes vote down vote up
def _check_prepopulated_fields_key(self, cls, model, field_name, label):
        """ Check a key of `prepopulated_fields` dictionary, i.e. check that it
        is a name of existing field and the field is one of the allowed types.
        """

        forbidden_field_types = (
            models.DateTimeField,
            models.ForeignKey,
            models.ManyToManyField
        )

        try:
            field = model._meta.get_field(field_name)
        except FieldDoesNotExist:
            return refer_to_missing_field(field=field_name, option=label,
                                          model=model, obj=cls, id='admin.E027')
        else:
            if isinstance(field, forbidden_field_types):
                return [
                    checks.Error(
                        "The value of '%s' refers to '%s', which must not be a DateTimeField, "
                        "ForeignKey or ManyToManyField." % (
                            label, field_name
                        ),
                        hint=None,
                        obj=cls,
                        id='admin.E028',
                    )
                ]
            else:
                return [] 
Example #29
Source Project: GTDWeb   Author: lanbing510   File: validation.py    License: GNU General Public License v2.0 5 votes vote down vote up
def validate_date_hierarchy(self, cls, model):
        " Validate that date_hierarchy refers to DateField or DateTimeField. "
        if cls.date_hierarchy:
            f = get_field(cls, model, 'date_hierarchy', cls.date_hierarchy)
            if not isinstance(f, (models.DateField, models.DateTimeField)):
                raise ImproperlyConfigured("'%s.date_hierarchy is "
                        "neither an instance of DateField nor DateTimeField."
                        % cls.__name__) 
Example #30
Source Project: aswan   Author: momosecurity   File: models.py    License: GNU Lesser General Public License v2.1 5 votes vote down vote up
def get_hit_log_model(db_table):
    class CustomMetaClass(ModelBase):
        def __new__(cls, name, bases, attrs):
            model = super(CustomMetaClass, cls).__new__(cls, name, bases,
                                                        attrs)
            model._meta.db_table = db_table
            model._meta.index_together = (
                ('time',),
                ('user_id',),
            )
            model.managed = False
            return model

    class HitLogModel(models.Model, metaclass=CustomMetaClass):
        time = models.DateTimeField(verbose_name=_(u'命中时间'))
        rule_id = models.IntegerField(verbose_name=_(u'规则ID'))
        user_id = models.IntegerField(verbose_name=_(u'命中用户'))
        kwargs = models.CharField(max_length=128, null=False, default='', verbose_name=_(u'扩展参数'))
        req_body = models.CharField(max_length=512, null=False, default='', verbose_name=_(u'请求参数'))
        control = models.CharField(max_length=16, null=False, default='', verbose_name=_(u'管控原子'))
        custom = models.CharField(max_length=50, null=False, default='', verbose_name=_(u'策略组解释'))
        group_name = models.CharField(max_length=256, null=False, default='',
                                      verbose_name=_(u'策略原子组名称'))
        group_uuid = models.CharField(max_length=36, null=False, default='',
                                      verbose_name=_(u'策略原子组UUID'))
        hit_number = models.PositiveSmallIntegerField(null=False, default=1, verbose_name=_(u'命中次序'))

        objects = Manager()

    return HitLogModel