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Python sqlalchemy_db.Session类代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了Python中sphinx.websupport.storage.sqlalchemy_db.Session的典型用法代码示例。如果您正苦于以下问题:Python Session类的具体用法?Python Session怎么用?Python Session使用的例子?那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。



在下文中一共展示了Session类的11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: get_data

 def get_data(self, node_id, username, moderator):
     session = Session()
     node = session.query(Node).filter(Node.id == node_id).one()
     session.close()
     comments = node.nested_comments(username, moderator)
     return {'source': node.source,
             'comments': comments}
开发者ID:nwf,项目名称:sphinx,代码行数:7,代码来源:sqlalchemystorage.py


示例2: update_username

    def update_username(self, old_username, new_username):
        session = Session()

        session.query(Comment).filter(Comment.username == old_username).\
            update({Comment.username: new_username})
        session.query(CommentVote).\
            filter(CommentVote.username == old_username).\
            update({CommentVote.username: new_username})

        session.commit()
        session.close()
开发者ID:nwf,项目名称:sphinx,代码行数:11,代码来源:sqlalchemystorage.py


示例3: accept_comment

    def accept_comment(self, comment_id):
        session = Session()
        session.query(Comment).filter(Comment.id == comment_id).update(
            {Comment.displayed: True}
        )

        session.commit()
        session.close()
开发者ID:nwf,项目名称:sphinx,代码行数:8,代码来源:sqlalchemystorage.py


示例4: get_metadata

 def get_metadata(self, docname, moderator):
     session = Session()
     subquery = session.query(
         Comment.node_id,
         func.count('*').label('comment_count')).group_by(
         Comment.node_id).subquery()
     nodes = session.query(Node.id, subquery.c.comment_count).outerjoin(
         (subquery, Node.id == subquery.c.node_id)).filter(
         Node.document == docname)
     session.close()
     session.commit()
     return dict([(k, v or 0) for k, v in nodes])
开发者ID:nwf,项目名称:sphinx,代码行数:12,代码来源:sqlalchemystorage.py


示例5: process_vote

    def process_vote(self, comment_id, username, value):
        session = Session()

        subquery = session.query(CommentVote).filter(
            CommentVote.username == username).subquery()
        vote_alias = aliased(CommentVote, subquery)
        q = session.query(Comment, vote_alias).outerjoin(vote_alias).filter(
            Comment.id == comment_id)
        comment, vote = q.one()

        if vote is None:
            vote = CommentVote(comment_id, username, value)
            comment.rating += value
        else:
            comment.rating += value - vote.value
            vote.value = value

        session.add(vote)
        session.commit()
        session.close()
开发者ID:nwf,项目名称:sphinx,代码行数:20,代码来源:sqlalchemystorage.py


示例6: delete_comment

 def delete_comment(self, comment_id, username, moderator):
     session = Session()
     comment = session.query(Comment).\
         filter(Comment.id == comment_id).one()
     if moderator:
         # moderator mode: delete the comment and all descendants
         # find descendants via path
         session.query(Comment).filter(
             Comment.path.like(comment.path + '.%')).delete(False)
         session.delete(comment)
         session.commit()
         session.close()
         return True
     elif comment.username == username:
         # user mode: do not really delete, but remove text and proposal
         comment.username = '[deleted]'
         comment.text = '[deleted]'
         comment.proposal = ''
         session.commit()
         session.close()
         return False
     else:
         session.close()
         raise UserNotAuthorizedError()
开发者ID:nwf,项目名称:sphinx,代码行数:24,代码来源:sqlalchemystorage.py


示例7: add_comment

    def add_comment(self, text, displayed, username, time,
                    proposal, node_id, parent_id, moderator):
        session = Session()
        proposal_diff = None
        proposal_diff_text = None

        if node_id and proposal:
            node = session.query(Node).filter(Node.id == node_id).one()
            differ = CombinedHtmlDiff(node.source, proposal)
            proposal_diff = differ.make_html()
            proposal_diff_text = differ.make_text()
        elif parent_id:
            parent = session.query(Comment.displayed).\
                filter(Comment.id == parent_id).one()
            if not parent.displayed:
                raise CommentNotAllowedError(
                    "Can't add child to a parent that is not displayed")

        comment = Comment(text, displayed, username, 0,
                          time or datetime.now(), proposal, proposal_diff)
        session.add(comment)
        session.flush()
        # We have to flush the session before setting the path so the
        # Comment has an id.
        comment.set_path(node_id, parent_id)
        session.commit()
        d = comment.serializable()
        d['document'] = comment.node.document
        d['proposal_diff_text'] = proposal_diff_text
        session.close()
        return d
开发者ID:nwf,项目名称:sphinx,代码行数:31,代码来源:sqlalchemystorage.py


示例8: has_node

 def has_node(self, id):
     session = Session()
     node = session.query(Node).filter(Node.id == id).first()
     session.close()
     return bool(node)
开发者ID:nwf,项目名称:sphinx,代码行数:5,代码来源:sqlalchemystorage.py


示例9: pre_build

 def pre_build(self):
     self.build_session = Session()
开发者ID:nwf,项目名称:sphinx,代码行数:2,代码来源:sqlalchemystorage.py


示例10: __init__

 def __init__(self, uri):
     self.engine = sqlalchemy.create_engine(uri)
     Base.metadata.bind = self.engine
     Base.metadata.create_all()
     Session.configure(bind=self.engine)
开发者ID:nwf,项目名称:sphinx,代码行数:5,代码来源:sqlalchemystorage.py


示例11: SQLAlchemyStorage

class SQLAlchemyStorage(StorageBackend):
    """
    A :class:`.StorageBackend` using SQLAlchemy.
    """

    def __init__(self, uri):
        self.engine = sqlalchemy.create_engine(uri)
        Base.metadata.bind = self.engine
        Base.metadata.create_all()
        Session.configure(bind=self.engine)

    def pre_build(self):
        self.build_session = Session()

    def has_node(self, id):
        session = Session()
        node = session.query(Node).filter(Node.id == id).first()
        session.close()
        return bool(node)

    def add_node(self, id, document, source):
        node = Node(id, document, source)
        self.build_session.add(node)
        self.build_session.flush()

    def post_build(self):
        self.build_session.commit()
        self.build_session.close()

    def add_comment(self, text, displayed, username, time,
                    proposal, node_id, parent_id, moderator):
        session = Session()
        proposal_diff = None
        proposal_diff_text = None

        if node_id and proposal:
            node = session.query(Node).filter(Node.id == node_id).one()
            differ = CombinedHtmlDiff(node.source, proposal)
            proposal_diff = differ.make_html()
            proposal_diff_text = differ.make_text()
        elif parent_id:
            parent = session.query(Comment.displayed).\
                filter(Comment.id == parent_id).one()
            if not parent.displayed:
                raise CommentNotAllowedError(
                    "Can't add child to a parent that is not displayed")

        comment = Comment(text, displayed, username, 0,
                          time or datetime.now(), proposal, proposal_diff)
        session.add(comment)
        session.flush()
        # We have to flush the session before setting the path so the
        # Comment has an id.
        comment.set_path(node_id, parent_id)
        session.commit()
        d = comment.serializable()
        d['document'] = comment.node.document
        d['proposal_diff_text'] = proposal_diff_text
        session.close()
        return d

    def delete_comment(self, comment_id, username, moderator):
        session = Session()
        comment = session.query(Comment).\
            filter(Comment.id == comment_id).one()
        if moderator:
            # moderator mode: delete the comment and all descendants
            # find descendants via path
            session.query(Comment).filter(
                Comment.path.like(comment.path + '.%')).delete(False)
            session.delete(comment)
            session.commit()
            session.close()
            return True
        elif comment.username == username:
            # user mode: do not really delete, but remove text and proposal
            comment.username = '[deleted]'
            comment.text = '[deleted]'
            comment.proposal = ''
            session.commit()
            session.close()
            return False
        else:
            session.close()
            raise UserNotAuthorizedError()

    def get_metadata(self, docname, moderator):
        session = Session()
        subquery = session.query(
            Comment.node_id,
            func.count('*').label('comment_count')).group_by(
            Comment.node_id).subquery()
        nodes = session.query(Node.id, subquery.c.comment_count).outerjoin(
            (subquery, Node.id == subquery.c.node_id)).filter(
            Node.document == docname)
        session.close()
        session.commit()
        return dict([(k, v or 0) for k, v in nodes])

    def get_data(self, node_id, username, moderator):
#.........这里部分代码省略.........
开发者ID:nwf,项目名称:sphinx,代码行数:101,代码来源:sqlalchemystorage.py



注:本文中的sphinx.websupport.storage.sqlalchemy_db.Session类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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Python sqlalchemystorage.Session类代码示例发布时间:2022-05-27
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