Changeset - 8849c07d8c62
[Not reviewed]
beta
0 1 0
Marcin Kuzminski - 13 years ago 2013-04-05 13:49:03
marcin@python-works.com
fixed prefix extractions from cache keys + cleanup
1 file changed with 18 insertions and 3 deletions:
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rhodecode/model/db.py
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@@ -1560,198 +1560,213 @@ class UserRepoGroupToPerm(Base, BaseMode
 
    user_id = Column("user_id", Integer(), ForeignKey('users.user_id'), nullable=False, unique=None, default=None)
 
    group_id = Column("group_id", Integer(), ForeignKey('groups.group_id'), nullable=False, unique=None, default=None)
 
    permission_id = Column("permission_id", Integer(), ForeignKey('permissions.permission_id'), nullable=False, unique=None, default=None)
 

	
 
    user = relationship('User')
 
    group = relationship('RepoGroup')
 
    permission = relationship('Permission')
 

	
 

	
 
class UserGroupRepoGroupToPerm(Base, BaseModel):
 
    __tablename__ = 'users_group_repo_group_to_perm'
 
    __table_args__ = (
 
        UniqueConstraint('users_group_id', 'group_id'),
 
        {'extend_existing': True, 'mysql_engine': 'InnoDB',
 
         'mysql_charset': 'utf8'}
 
    )
 

	
 
    users_group_repo_group_to_perm_id = Column("users_group_repo_group_to_perm_id", Integer(), nullable=False, unique=True, default=None, primary_key=True)
 
    users_group_id = Column("users_group_id", Integer(), ForeignKey('users_groups.users_group_id'), nullable=False, unique=None, default=None)
 
    group_id = Column("group_id", Integer(), ForeignKey('groups.group_id'), nullable=False, unique=None, default=None)
 
    permission_id = Column("permission_id", Integer(), ForeignKey('permissions.permission_id'), nullable=False, unique=None, default=None)
 

	
 
    users_group = relationship('UserGroup')
 
    permission = relationship('Permission')
 
    group = relationship('RepoGroup')
 

	
 

	
 
class Statistics(Base, BaseModel):
 
    __tablename__ = 'statistics'
 
    __table_args__ = (
 
         UniqueConstraint('repository_id'),
 
         {'extend_existing': True, 'mysql_engine': 'InnoDB',
 
          'mysql_charset': 'utf8'}
 
    )
 
    stat_id = Column("stat_id", Integer(), nullable=False, unique=True, default=None, primary_key=True)
 
    repository_id = Column("repository_id", Integer(), ForeignKey('repositories.repo_id'), nullable=False, unique=True, default=None)
 
    stat_on_revision = Column("stat_on_revision", Integer(), nullable=False)
 
    commit_activity = Column("commit_activity", LargeBinary(1000000), nullable=False)#JSON data
 
    commit_activity_combined = Column("commit_activity_combined", LargeBinary(), nullable=False)#JSON data
 
    languages = Column("languages", LargeBinary(1000000), nullable=False)#JSON data
 

	
 
    repository = relationship('Repository', single_parent=True)
 

	
 

	
 
class UserFollowing(Base, BaseModel):
 
    __tablename__ = 'user_followings'
 
    __table_args__ = (
 
        UniqueConstraint('user_id', 'follows_repository_id'),
 
        UniqueConstraint('user_id', 'follows_user_id'),
 
        {'extend_existing': True, 'mysql_engine': 'InnoDB',
 
         'mysql_charset': 'utf8'}
 
    )
 

	
 
    user_following_id = Column("user_following_id", Integer(), nullable=False, unique=True, default=None, primary_key=True)
 
    user_id = Column("user_id", Integer(), ForeignKey('users.user_id'), nullable=False, unique=None, default=None)
 
    follows_repo_id = Column("follows_repository_id", Integer(), ForeignKey('repositories.repo_id'), nullable=True, unique=None, default=None)
 
    follows_user_id = Column("follows_user_id", Integer(), ForeignKey('users.user_id'), nullable=True, unique=None, default=None)
 
    follows_from = Column('follows_from', DateTime(timezone=False), nullable=True, unique=None, default=datetime.datetime.now)
 

	
 
    user = relationship('User', primaryjoin='User.user_id==UserFollowing.user_id')
 

	
 
    follows_user = relationship('User', primaryjoin='User.user_id==UserFollowing.follows_user_id')
 
    follows_repository = relationship('Repository', order_by='Repository.repo_name')
 

	
 
    @classmethod
 
    def get_repo_followers(cls, repo_id):
 
        return cls.query().filter(cls.follows_repo_id == repo_id)
 

	
 

	
 
class CacheInvalidation(Base, BaseModel):
 
    __tablename__ = 'cache_invalidation'
 
    __table_args__ = (
 
        UniqueConstraint('cache_key'),
 
        Index('key_idx', 'cache_key'),
 
        {'extend_existing': True, 'mysql_engine': 'InnoDB',
 
         'mysql_charset': 'utf8'},
 
    )
 
    # cache_id, not used
 
    cache_id = Column("cache_id", Integer(), nullable=False, unique=True, default=None, primary_key=True)
 
    # cache_key as created by _get_cache_key
 
    cache_key = Column("cache_key", String(255, convert_unicode=False, assert_unicode=None), nullable=True, unique=None, default=None)
 
    # cache_args is a repo_name
 
    cache_args = Column("cache_args", String(255, convert_unicode=False, assert_unicode=None), nullable=True, unique=None, default=None)
 
    # instance sets cache_active True when it is caching,
 
    # other instances set cache_active to False to indicate that this cache is invalid
 
    cache_active = Column("cache_active", Boolean(), nullable=True, unique=None, default=False)
 

	
 
    def __init__(self, cache_key, repo_name=''):
 
        self.cache_key = cache_key
 
        self.cache_args = repo_name
 
        self.cache_active = False
 

	
 
    def __unicode__(self):
 
        return u"<%s('%s:%s[%s]')>" % (self.__class__.__name__,
 
                            self.cache_id, self.cache_key, self.cache_active)
 

	
 
    def _cache_key_partition(self):
 
        prefix, repo_name, suffix = self.cache_key.partition(self.cache_args)
 
        return prefix, repo_name, suffix
 

	
 
    def get_prefix(self):
 
        """
 
        Guess prefix that might have been used in _get_cache_key to generate self.cache_key .
 
        Only used for informational purposes in repo_edit.html .
 
        get prefix that might have been used in _get_cache_key to
 
        generate self.cache_key. Only used for informational purposes
 
        in repo_edit.html.
 
        """
 
        return self.cache_key.split(self.cache_args, 1)[0]
 
        # prefix, repo_name, suffix
 
        return self._cache_key_partition()[0]
 

	
 
    def get_suffix(self):
 
        """
 
        get suffix that might have been used in _get_cache_key to
 
        generate self.cache_key. Only used for informational purposes
 
        in repo_edit.html.
 
        """
 
        # prefix, repo_name, suffix
 
        return self._cache_key_partition()[2]
 

	
 
    @classmethod
 
    def _get_cache_key(cls, key):
 
        """
 
        Wrapper for generating a unique cache key for this instance and "key".
 
        key must / will start with a repo_name which will be stored in .cache_args .
 
        """
 
        import rhodecode
 
        prefix = rhodecode.CONFIG.get('instance_id', '')
 
        return "%s%s" % (prefix, key)
 

	
 
    @classmethod
 
    def invalidate(cls, key):
 
        """
 
        Returns Invalidation object if the local cache with the given key is invalid,
 
        None otherwise.
 
        """
 
        repo_name = key
 
        repo_name = remove_suffix(repo_name, '_README')
 
        repo_name = remove_suffix(repo_name, '_RSS')
 
        repo_name = remove_suffix(repo_name, '_ATOM')
 

	
 
        cache_key = cls._get_cache_key(key)
 
        inv_obj = Session().query(cls).filter(cls.cache_key == cache_key).scalar()
 
        if not inv_obj:
 
            try:
 
                inv_obj = CacheInvalidation(cache_key, repo_name)
 
                Session().add(inv_obj)
 
                Session().commit()
 
            except Exception:
 
                log.error(traceback.format_exc())
 
                Session().rollback()
 
                return
 

	
 
        if not inv_obj.cache_active:
 
            # `cache_active = False` means that this cache
 
            # no longer is valid
 
            return inv_obj
 

	
 
    @classmethod
 
    def set_invalidate(cls, repo_name):
 
        """
 
        Mark all caches of a repo as invalid in the database.
 
        """
 
        invalidated_keys = []
 
        inv_objs = Session().query(cls).filter(cls.cache_args == repo_name).all()
 

	
 
        try:
 
            for inv_obj in inv_objs:
 
                log.debug('marking %s key for invalidation based on repo_name=%s'
 
                          % (inv_obj, safe_str(repo_name)))
 
                inv_obj.cache_active = False
 
                invalidated_keys.append(inv_obj.cache_key)
 
                Session().add(inv_obj)
 
            Session().commit()
 
        except Exception:
 
            log.error(traceback.format_exc())
 
            Session().rollback()
 
        return invalidated_keys
 

	
 
    @classmethod
 
    def set_valid(cls, cache_key):
 
        """
 
        Mark this cache key as active and currently cached
 
        """
 
        inv_obj = cls.query().filter(cls.cache_key == cache_key).scalar()
 
        inv_obj.cache_active = True
 
        Session().add(inv_obj)
 
        Session().commit()
 

	
 
    @classmethod
 
    def get_cache_map(cls):
 

	
 
        class cachemapdict(dict):
 

	
 
            def __init__(self, *args, **kwargs):
 
                self.fixkey = kwargs.pop('fixkey', False)
 
                super(cachemapdict, self).__init__(*args, **kwargs)
 

	
 
            def __getattr__(self, name):
 
                cache_key = name
 
                if self.fixkey:
 
                    cache_key = cls._get_cache_key(name)
 
                if cache_key in self.__dict__:
 
                    return self.__dict__[cache_key]
 
                else:
 
                    return self[cache_key]
 

	
 
            def __getitem__(self, name):
 
                cache_key = name
 
                if self.fixkey:
 
                    cache_key = cls._get_cache_key(name)
 
                try:
 
                    return super(cachemapdict, self).__getitem__(cache_key)
 
                except KeyError:
 
                    return None
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