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Python orderinglist.ordering_list函数代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了Python中sqlalchemy.ext.orderinglist.ordering_list函数的典型用法代码示例。如果您正苦于以下问题:Python ordering_list函数的具体用法?Python ordering_list怎么用?Python ordering_list使用的例子?那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。



在下文中一共展示了ordering_list函数的20个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于我们的系统推荐出更棒的Python代码示例。

示例1: test_funky_ordering

    def test_funky_ordering(self):
        class Pos(object):
            def __init__(self):
                self.position = None

        step_factory = ordering_list(
            "position", ordering_func=step_numbering(2)
        )

        stepped = step_factory()
        stepped.append(Pos())
        stepped.append(Pos())
        stepped.append(Pos())
        stepped.append(Pos())

        for li, pos in (0, 0), (1, 2), (2, 4), (3, 6):
            self.assert_(stepped[li].position == pos)

        fib_factory = ordering_list(
            "position", ordering_func=fibonacci_numbering("position")
        )

        fibbed = fib_factory()
        fibbed.append(Pos())
        fibbed.append(Pos())
        fibbed.append(Pos())
        fibbed.append(Pos())
        fibbed.append(Pos())

        for li, pos in (0, 1), (1, 2), (2, 3), (3, 5), (4, 8):
            self.assert_(fibbed[li].position == pos)

        fibbed.insert(2, Pos())
        fibbed.insert(4, Pos())
        fibbed.insert(6, Pos())

        for li, pos in (
            (0, 1),
            (1, 2),
            (2, 3),
            (3, 5),
            (4, 8),
            (5, 13),
            (6, 21),
            (7, 34),
        ):
            self.assert_(fibbed[li].position == pos)

        alpha_factory = ordering_list("position", ordering_func=alpha_ordering)
        alpha = alpha_factory()
        alpha.append(Pos())
        alpha.append(Pos())
        alpha.append(Pos())

        alpha.insert(1, Pos())

        for li, pos in (0, "A"), (1, "B"), (2, "C"), (3, "D"):
            self.assert_(alpha[li].position == pos)
开发者ID:BY-jk,项目名称:sqlalchemy,代码行数:58,代码来源:test_orderinglist.py


示例2: Doc

def Doc(models):

    if models.lang == 'ru':
        id = Column(Integer, primary_key=True)
    else:
        id = Column(Integer, ForeignKey(models.DocRu.id),
                    primary_key=True, autoincrement=False)

    date = Column(DateTime, nullable=False, default=datetime.now, index=True)
    title = Column(Html(String(1000)), nullable=False, default='')

    summary = Column(Html(Text), nullable=False, default='')
    body = deferred(Column(ExpandableHtml(MediumText), nullable=False,
                    default=ExpandableMarkup('')))

    _photos, photos_edit, photos = editable_ordered_relation(
            models.Doc_Photo, 'photo', use_property=False)
    _photo_sets, photo_sets_edit, photo_sets = editable_ordered_relation(
            models.Doc_PhotoSet, 'photo_set', use_property=False)

    link_blocks_edit = relationship(
            models.DocLinkBlock,
            order_by=[models.DocLinkBlock.order_position],
            collection_class=ordering_list('order_position'),
            cascade='all, delete-orphan')
    # do not display blocks without links
    link_blocks = FilteredProperty('link_blocks_edit', has_links=True)

    sections = relationship(
            models.Section,
            secondary=models.Doc_Section.__table__)

    __mapper_args__ = {'order_by': desc(date)}

    def __unicode__(self):
        if self.id is None:
            return u'Новый материал'
        return u'Материал: {}'.format(self.title)

    @cached_property
    def index_photo(self):
        if self.photos:
            return self.photos[0]
        elif self.photo_sets:
            return self.photo_sets[0].index_photo
        else:
            return None

    @cached_property
    def all_photos(self):
        photos = sum([x.photos for x in self.photo_sets], []) + self.photos
        return list(collections.OrderedDict.fromkeys(photos))

    @cached_property
    def links_count(self):
        return sum([len(x.links) for x in self.link_blocks])

    @cached_property
    def date_formatted(self):
        return format_datetime(self.date, locale=self.models.lang)
开发者ID:SmartTeleMax,项目名称:iktomi-cms-demo,代码行数:60,代码来源:docs.py


示例3: test_replace

    def test_replace(self):
        self._setup(ordering_list("position"))

        s1 = Slide("Slide #1")
        s1.bullets = [Bullet("1"), Bullet("2"), Bullet("3")]

        self.assert_(len(s1.bullets) == 3)
        self.assert_(s1.bullets[2].position == 2)

        session = create_session()
        session.add(s1)
        session.flush()

        new_bullet = Bullet("new 2")
        self.assert_(new_bullet.position is None)

        # mark existing bullet as db-deleted before replacement.
        # session.delete(s1.bullets[1])
        s1.bullets[1] = new_bullet

        self.assert_(new_bullet.position == 1)
        self.assert_(len(s1.bullets) == 3)

        id_ = s1.id

        session.flush()
        session.expunge_all()

        srt = session.query(Slide).get(id_)

        self.assert_(srt.bullets)
        self.assert_(len(srt.bullets) == 3)

        self.assert_(srt.bullets[1].text == "new 2")
        self.assert_(srt.bullets[2].text == "3")
开发者ID:BY-jk,项目名称:sqlalchemy,代码行数:35,代码来源:test_orderinglist.py


示例4: test_append_no_reorder

    def test_append_no_reorder(self):
        self._setup(
            ordering_list("position", count_from=1, reorder_on_append=False)
        )

        s1 = Slide("Slide #1")

        self.assert_(not s1.bullets)
        self.assert_(len(s1.bullets) == 0)

        s1.bullets.append(Bullet("s1/b1"))

        self.assert_(s1.bullets)
        self.assert_(len(s1.bullets) == 1)
        self.assert_(s1.bullets[0].position == 1)

        s1.bullets.append(Bullet("s1/b2"))

        self.assert_(len(s1.bullets) == 2)
        self.assert_(s1.bullets[0].position == 1)
        self.assert_(s1.bullets[1].position == 2)

        bul = Bullet("s1/b100")
        bul.position = 100
        s1.bullets.append(bul)

        self.assert_(s1.bullets[0].position == 1)
        self.assert_(s1.bullets[1].position == 2)
        self.assert_(s1.bullets[2].position == 100)

        s1.bullets.append(Bullet("s1/b4"))
        self.assert_(s1.bullets[0].position == 1)
        self.assert_(s1.bullets[1].position == 2)
        self.assert_(s1.bullets[2].position == 100)
        self.assert_(s1.bullets[3].position == 4)

        s1.bullets._reorder()
        self.assert_(s1.bullets[0].position == 1)
        self.assert_(s1.bullets[1].position == 2)
        self.assert_(s1.bullets[2].position == 3)
        self.assert_(s1.bullets[3].position == 4)

        session = create_session()
        session.add(s1)
        session.flush()

        id_ = s1.id
        session.expunge_all()
        del s1

        srt = session.query(Slide).get(id_)

        self.assert_(srt.bullets)
        self.assert_(len(srt.bullets) == 4)

        titles = ["s1/b1", "s1/b2", "s1/b100", "s1/b4"]
        found = [b.text for b in srt.bullets]

        self.assert_(titles == found)
开发者ID:BY-jk,项目名称:sqlalchemy,代码行数:59,代码来源:test_orderinglist.py


示例5: test_replace_two

    def test_replace_two(self):
        """test #3191"""

        self._setup(ordering_list("position", reorder_on_append=True))

        s1 = Slide("Slide #1")

        b1, b2, b3, b4 = Bullet("1"), Bullet("2"), Bullet("3"), Bullet("4")
        s1.bullets = [b1, b2, b3]

        eq_([b.position for b in s1.bullets], [0, 1, 2])

        s1.bullets = [b4, b2, b1]
        eq_([b.position for b in s1.bullets], [0, 1, 2])
开发者ID:BY-jk,项目名称:sqlalchemy,代码行数:14,代码来源:test_orderinglist.py


示例6: get_dict

 def get_dict(self, models, factory=None):
     remote_cls_name = self.get_remote_cls_name(factory)
     remote_cls = getattr(models, remote_cls_name)
     kwargs = {}
     if self.ordered:
         kwargs['collection_class'] = ordering_list('order')
         kwargs['order_by'] = [remote_cls.order]
     if self.cascade:
         kwargs['cascade'] = self.cascade
     if self.remote_foreign_key:
         kwargs['foreign_keys'] = self.get_foreign_keys(models, factory)
     field = relation(remote_cls, **kwargs)
     return {
         self.name: field,
     }
开发者ID:SlivTime,项目名称:cms34,代码行数:15,代码来源:fields.py


示例7: test_slice

    def test_slice(self):
        self._setup(ordering_list("position"))

        b = [
            Bullet("1"),
            Bullet("2"),
            Bullet("3"),
            Bullet("4"),
            Bullet("5"),
            Bullet("6"),
        ]
        s1 = Slide("Slide #1")

        # 1, 2, 3
        s1.bullets[0:3] = b[0:3]
        for i in 0, 1, 2:
            self.assert_(s1.bullets[i].position == i)
            self.assert_(s1.bullets[i] == b[i])

        # 1, 4, 5, 6, 3
        s1.bullets[1:2] = b[3:6]
        for li, bi in (0, 0), (1, 3), (2, 4), (3, 5), (4, 2):
            self.assert_(s1.bullets[li].position == li)
            self.assert_(s1.bullets[li] == b[bi])

        # 1, 6, 3
        del s1.bullets[1:3]
        for li, bi in (0, 0), (1, 5), (2, 2):
            self.assert_(s1.bullets[li].position == li)
            self.assert_(s1.bullets[li] == b[bi])

        session = create_session()
        session.add(s1)
        session.flush()

        id_ = s1.id
        session.expunge_all()
        del s1

        srt = session.query(Slide).get(id_)

        self.assert_(srt.bullets)
        self.assert_(len(srt.bullets) == 3)

        texts = ["1", "6", "3"]
        for i, text in enumerate(texts):
            self.assert_(srt.bullets[i].position == i)
            self.assert_(srt.bullets[i].text == text)
开发者ID:BY-jk,项目名称:sqlalchemy,代码行数:48,代码来源:test_orderinglist.py


示例8: test_insert

    def test_insert(self):
        self._setup(ordering_list('position'))

        s1 = Slide('Slide #1')
        s1.bullets.append(Bullet('1'))
        s1.bullets.append(Bullet('2'))
        s1.bullets.append(Bullet('3'))
        s1.bullets.append(Bullet('4'))

        self.assert_(s1.bullets[0].position == 0)
        self.assert_(s1.bullets[1].position == 1)
        self.assert_(s1.bullets[2].position == 2)
        self.assert_(s1.bullets[3].position == 3)

        s1.bullets.insert(2, Bullet('insert_at_2'))
        self.assert_(s1.bullets[0].position == 0)
        self.assert_(s1.bullets[1].position == 1)
        self.assert_(s1.bullets[2].position == 2)
        self.assert_(s1.bullets[3].position == 3)
        self.assert_(s1.bullets[4].position == 4)

        self.assert_(s1.bullets[1].text == '2')
        self.assert_(s1.bullets[2].text == 'insert_at_2')
        self.assert_(s1.bullets[3].text == '3')

        s1.bullets.insert(999, Bullet('999'))

        self.assert_(len(s1.bullets) == 6)
        self.assert_(s1.bullets[5].position == 5)

        session = create_session()
        session.add(s1)
        session.flush()

        id = s1.id
        session.expunge_all()
        del s1

        srt = session.query(Slide).get(id)

        self.assert_(srt.bullets)
        self.assert_(len(srt.bullets) == 6)

        texts = ['1','2','insert_at_2','3','4','999']
        found = [b.text for b in srt.bullets]

        self.assert_(texts == found)
开发者ID:Attsun1031,项目名称:sqlalchemy,代码行数:47,代码来源:test_orderinglist.py


示例9: test_insert

    def test_insert(self):
        self._setup(ordering_list("position"))

        s1 = Slide("Slide #1")
        s1.bullets.append(Bullet("1"))
        s1.bullets.append(Bullet("2"))
        s1.bullets.append(Bullet("3"))
        s1.bullets.append(Bullet("4"))

        self.assert_(s1.bullets[0].position == 0)
        self.assert_(s1.bullets[1].position == 1)
        self.assert_(s1.bullets[2].position == 2)
        self.assert_(s1.bullets[3].position == 3)

        s1.bullets.insert(2, Bullet("insert_at_2"))
        self.assert_(s1.bullets[0].position == 0)
        self.assert_(s1.bullets[1].position == 1)
        self.assert_(s1.bullets[2].position == 2)
        self.assert_(s1.bullets[3].position == 3)
        self.assert_(s1.bullets[4].position == 4)

        self.assert_(s1.bullets[1].text == "2")
        self.assert_(s1.bullets[2].text == "insert_at_2")
        self.assert_(s1.bullets[3].text == "3")

        s1.bullets.insert(999, Bullet("999"))

        self.assert_(len(s1.bullets) == 6)
        self.assert_(s1.bullets[5].position == 5)

        session = create_session()
        session.add(s1)
        session.flush()

        id_ = s1.id
        session.expunge_all()
        del s1

        srt = session.query(Slide).get(id_)

        self.assert_(srt.bullets)
        self.assert_(len(srt.bullets) == 6)

        texts = ["1", "2", "insert_at_2", "3", "4", "999"]
        found = [b.text for b in srt.bullets]

        self.assert_(texts == found)
开发者ID:BY-jk,项目名称:sqlalchemy,代码行数:47,代码来源:test_orderinglist.py


示例10: create_collection_class

def create_collection_class(owner, member, column, *,
                            sorted=True, duplicates=True):
    """
    Creates a class for holding the values of a collection in given *owner*
    class.

    The given *owner* class will be updated to have a new *member* with given
    name, which is a list containing elements as described by *column*:

    >>> create_collection_class(Group, 'permissions',
    ...                         Column(PermissionEnum.db_type(), nullable=False)

    Group objects will now have a member called 'permissions', which contain a
    sorted list of PermissionEnum values.

    See :func:`.create_relationship_class` for the description of the keyword
    arguments.
    """
    name = owner.__name__ + tbl2cls(member)
    if sorted:
        bref = backref(member + '_wrapper', order_by='%s.index' % name,
                       collection_class=ordering_list('index'))
    else:
        bref = backref(member + '_wrapper')
    members = {
        '__score_db__': {
            'inheritance': None
        },
        'owner_id': Column(IdType, ForeignKey('%s.id' % owner.__tablename__),
                           nullable=False),
        'owner': relationship(owner, backref=bref),
        'value': column,
    }
    if sorted:
        members['index'] = Column(Integer, nullable=False)
    if not duplicates:
        members['__table_args__'] = (
            UniqueConstraint(members['owner_id'], column),
        )
    cls = type(name, (owner.__score_db__['base'],), members)
    proxy = association_proxy(member + '_wrapper', 'value',
                              creator=lambda v: cls(value=v))
    setattr(owner, member, proxy)
    return cls
开发者ID:tronstoner,项目名称:py.db,代码行数:44,代码来源:helpers.py


示例11: test_slice

    def test_slice(self):
        self._setup(ordering_list('position'))

        b = [ Bullet('1'), Bullet('2'), Bullet('3'),
              Bullet('4'), Bullet('5'), Bullet('6') ]
        s1 = Slide('Slide #1')

        # 1, 2, 3
        s1.bullets[0:3] = b[0:3]
        for i in 0, 1, 2:
            self.assert_(s1.bullets[i].position == i)
            self.assert_(s1.bullets[i] == b[i])

        # 1, 4, 5, 6, 3
        s1.bullets[1:2] = b[3:6]
        for li, bi in (0,0), (1,3), (2,4), (3,5), (4,2):
            self.assert_(s1.bullets[li].position == li)
            self.assert_(s1.bullets[li] == b[bi])

        # 1, 6, 3
        del s1.bullets[1:3]
        for li, bi in (0,0), (1,5), (2,2):
            self.assert_(s1.bullets[li].position == li)
            self.assert_(s1.bullets[li] == b[bi])

        session = create_session()
        session.add(s1)
        session.flush()

        id = s1.id
        session.expunge_all()
        del s1

        srt = session.query(Slide).get(id)

        self.assert_(srt.bullets)
        self.assert_(len(srt.bullets) == 3)

        texts = ['1', '6', '3']
        for i, text in enumerate(texts):
            self.assert_(srt.bullets[i].position == i)
            self.assert_(srt.bullets[i].text == text)
开发者ID:Attsun1031,项目名称:sqlalchemy,代码行数:42,代码来源:test_orderinglist.py


示例12: test_replace_two

    def test_replace_two(self):
        """test #3191"""

        self._setup(ordering_list('position', reorder_on_append=True))

        s1 = Slide('Slide #1')

        b1, b2, b3, b4 = Bullet('1'), Bullet('2'), Bullet('3'), Bullet('4')
        s1.bullets = [b1, b2, b3]

        eq_(
            [b.position for b in s1.bullets],
            [0, 1, 2]
        )

        s1.bullets = [b4, b2, b1]
        eq_(
            [b.position for b in s1.bullets],
            [0, 1, 2]
        )
开发者ID:Attsun1031,项目名称:sqlalchemy,代码行数:20,代码来源:test_orderinglist.py


示例13: DocLinkBlock

def DocLinkBlock(models):
    id = Column(Integer, primary_key=True)
    title = Column(String(250), nullable=False, default='')
    doc_id = Column(Integer, ForeignKey(models.Doc.id, ondelete='CASCADE'),
                    nullable=False)
    doc = relationship(models.Doc)

    links_edit = relationship(models.DocLink,
                      collection_class=ordering_list('order_position'),
                      order_by=[models.DocLink.order_position],
                      cascade='all, delete-orphan')
    # do not display links which can not be transformed to urls,
    # for example links to unpublished documents
    links = FilteredProperty('links_edit', has_url=True)
    order_position = Column(Integer, nullable=False, default=0)

    @property
    def has_links(self):
        return bool(self.links)

    def __unicode__(self):
        return u"Блок ссылок: {}".format(self.title)
开发者ID:SmartTeleMax,项目名称:iktomi-cms-demo,代码行数:22,代码来源:docs.py


示例14: InitMapper

	def InitMapper( cls, metadata, Board ):
		cls.__table__ = Table( cls.__tablename__, metadata,
					Column('id',        Integer, index = True, primary_key = True ),
					Column('board_id',  ForeignKey( Board.id ), index = True, nullable = False ),
					Column('slot',      Integer, index = True, nullable = False ),
					Column('subject',   String(255), nullable = False ),
					Column('body',      Text, nullable = False ),
					Column('turn',		Integer, nullable = False ),
					Column('mtime',	    DateTime, nullable = False,
						onupdate = func.current_timestamp(), default = func.current_timestamp()))

		cols = cls.__table__.c

		Index('ix_%s_id_board' % cls.__tablename__, cols.id, cols.board_id)

		mapper( cls, cls.__table__, properties = {
			'board': relation( Board,
				uselist = False,
				backref = backref( 'messages',
					collection_class = ordering_list('slot', count_from = 1),
					order_by = [ cols.slot ] ))
			})
开发者ID:cahirwpz,项目名称:tpserver-py,代码行数:22,代码来源:Message.py


示例15: InitMapper

	def InitMapper( cls, metadata, OrderType, Object, Player ):
		cls.__table__ = Table( cls.__tablename__, metadata,
				Column('id',        Integer,     index = True, primary_key = True),
				Column('slot',      Integer,     nullable = False),
				Column('type_id',   ForeignKey( OrderType.id ), nullable = False),
				Column('object_id', ForeignKey( Object.id ), nullable = True),
				Column('owner_id',  ForeignKey( Player.id ), index = True, nullable = True),
				Column('eta',       Integer,     nullable = False, default = 0),
				Column('mtime',     DateTime,    nullable = False,
					onupdate = func.current_timestamp(), default = func.current_timestamp()))

		cols = cls.__table__.c

		mapper( cls, cls.__table__, polymorphic_on = cols.type_id, properties = {
			'type': relation( OrderType,
				uselist = False ),
			'object': relation( Object,
				uselist = False,
				backref = backref( 'orders',
					collection_class = ordering_list('slot', count_from = 1),
					order_by = [ cols.slot ] )),
			'owner': relation( Player,
				uselist = False )
			})
开发者ID:cahirwpz,项目名称:tpserver-py,代码行数:24,代码来源:Order.py


示例16: Column

                       primary_key=True)

    position = Column(Integer, nullable=False)

    creation_date = deferred(Column(DateTime, default=datetime.now,
                                    nullable=False))
    comments = deferred(Column(String(255), nullable=True))

    service_instance = relation(ServiceInstance)
    system = relation(System, uselist=False, backref='sislist')

    def __str__(self):
        return str(self.system.fqdn)

    def __repr__(self):
        return self.__class__.__name__ + " " + str(self.system.fqdn)


service_instance_server = ServiceInstanceServer.__table__
service_instance_server.primary_key.name='service_instance_server_pk'

table = service_instance_server

#TODO: would we like this mapped in service_instance.py instead?
ServiceInstance.servers = relation(ServiceInstanceServer,
                          collection_class=ordering_list('position'),
                          order_by=[ServiceInstanceServer.__table__.c.position])



开发者ID:jrha,项目名称:aquilon,代码行数:27,代码来源:service_instance_server.py


示例17:

        return cls.extra_columns


## Mappers

meta.mapper(
    Resource,
    resource_table,
    properties={
        "resource_group": orm.relation(
            ResourceGroup,
            # all resources including deleted
            # formally package_resources_all
            backref=orm.backref(
                "resources_all",
                collection_class=ordering_list("position"),
                cascade="all, delete",
                order_by=resource_table.c.position,
            ),
        )
    },
    order_by=[resource_table.c.resource_group_id],
    extension=[vdm.sqlalchemy.Revisioner(resource_revision_table), extension.PluginMapperExtension()],
)


meta.mapper(
    ResourceGroup,
    resource_group_table,
    properties={
        "package": orm.relation(
开发者ID:netconstructor,项目名称:ckan,代码行数:31,代码来源:resource.py


示例18: test_append_reorder

    def test_append_reorder(self):
        self._setup(ordering_list('position', count_from=1,
                                  reorder_on_append=True))

        s1 = Slide('Slide #1')

        self.assert_(not s1.bullets)
        self.assert_(len(s1.bullets) == 0)

        s1.bullets.append(Bullet('s1/b1'))

        self.assert_(s1.bullets)
        self.assert_(len(s1.bullets) == 1)
        self.assert_(s1.bullets[0].position == 1)

        s1.bullets.append(Bullet('s1/b2'))

        self.assert_(len(s1.bullets) == 2)
        self.assert_(s1.bullets[0].position == 1)
        self.assert_(s1.bullets[1].position == 2)

        bul = Bullet('s1/b100')
        bul.position = 100
        s1.bullets.append(bul)

        self.assert_(s1.bullets[0].position == 1)
        self.assert_(s1.bullets[1].position == 2)
        self.assert_(s1.bullets[2].position == 3)

        s1.bullets.append(Bullet('s1/b4'))
        self.assert_(s1.bullets[0].position == 1)
        self.assert_(s1.bullets[1].position == 2)
        self.assert_(s1.bullets[2].position == 3)
        self.assert_(s1.bullets[3].position == 4)

        s1.bullets._reorder()
        self.assert_(s1.bullets[0].position == 1)
        self.assert_(s1.bullets[1].position == 2)
        self.assert_(s1.bullets[2].position == 3)
        self.assert_(s1.bullets[3].position == 4)

        s1.bullets._raw_append(Bullet('raw'))
        self.assert_(s1.bullets[4].position is None)

        s1.bullets._reorder()
        self.assert_(s1.bullets[4].position == 5)
        session = create_session()
        session.add(s1)
        session.flush()

        id = s1.id
        session.expunge_all()
        del s1

        srt = session.query(Slide).get(id)

        self.assert_(srt.bullets)
        self.assert_(len(srt.bullets) == 5)

        titles = ['s1/b1','s1/b2','s1/b100','s1/b4', 'raw']
        found = [b.text for b in srt.bullets]
        eq_(titles, found)

        srt.bullets._raw_append(Bullet('raw2'))
        srt.bullets[-1].position = 6
        session.flush()
        session.expunge_all()

        srt = session.query(Slide).get(id)
        titles = ['s1/b1','s1/b2','s1/b100','s1/b4', 'raw', 'raw2']
        found = [b.text for b in srt.bullets]
        eq_(titles, found)
开发者ID:Attsun1031,项目名称:sqlalchemy,代码行数:72,代码来源:test_orderinglist.py


示例19: association_proxy

        primaryjoin=ArtworkArtifact.artifact_id == Artifact.id,
        backref='artwork_artifacts')
ArtworkArtifact.artwork = association_proxy('artwork_version', 'artwork')

ArtworkAuthor.author = relationship(User,
        primaryjoin=ArtworkAuthor.author_id == User.id,
        backref='artwork_authors')
ArtworkAuthor.description = relationship(Post,
        primaryjoin=ArtworkAuthor.description_id == Post.id)
ArtworkAuthor.artwork = relationship(Artwork,
        primaryjoin=ArtworkAuthor.artwork_id == Artwork.id,
        backref=backref(
            'artwork_authors',
            cascade="all, delete-orphan",
            order_by=ArtworkAuthor.order,
            collection_class=ordering_list('order', reorder_on_append=True)))

Post.poster = relationship(User,
        primaryjoin=Post.poster_id == User.id)
Post.active_text = relationship(PostText,
        primaryjoin=Post.active_text_id == PostText.id)

PostText.post = relationship(Post,
        primaryjoin=PostText.post_id == Post.id,
        backref=backref(
            "texts",
            order_by=PostText.posted_at))
PostText.poster = relationship(User,
        primaryjoin=PostText.poster_id == User.id)

ArtworkComment.artwork = relationship(Artwork,
开发者ID:encukou,项目名称:fanart,代码行数:31,代码来源:tables.py


示例20: object_session

        "Add a field model."
        self.fieldModels.append(field)
        s = object_session(self)
        if s:
            s.flush()

    def addCardModel(self, card):
        "Add a card model."
        self.cardModels.append(card)
        s = object_session(self)
        if s:
            s.flush()

mapper(Model, modelsTable, properties={
    'fieldModels': relation(FieldModel, backref='model',
                             collection_class=ordering_list('ordinal'),
                             order_by=[fieldModelsTable.c.ordinal],
                            cascade="all, delete-orphan"),
    'cardModels': relation(CardModel, backref='model',
                           collection_class=ordering_list('ordinal'),
                           order_by=[cardModelsTable.c.ordinal],
                           cascade="all, delete-orphan"),
       })

# Model deletions
##########################################################################

modelsDeletedTable = Table(
    'modelsDeleted', metadata,
    Column('modelId', Integer, ForeignKey("models.id"),
           nullable=False),
开发者ID:sanna,项目名称:libanki,代码行数:31,代码来源:models.py



注:本文中的sqlalchemy.ext.orderinglist.ordering_list函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。


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