本文整理汇总了Python中sqlalchemy.sql.expression.or_方法的典型用法代码示例。如果您正苦于以下问题:Python expression.or_方法的具体用法?Python expression.or_怎么用?Python expression.or_使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类sqlalchemy.sql.expression
的用法示例。
在下文中一共展示了expression.or_方法的15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,您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: feed_shelf
# 需要导入模块: from sqlalchemy.sql import expression [as 别名]
# 或者: from sqlalchemy.sql.expression import or_ [as 别名]
def feed_shelf(book_id):
off = request.args.get("offset") or 0
if current_user.is_anonymous:
shelf = ub.session.query(ub.Shelf).filter(ub.Shelf.is_public == 1,
ub.Shelf.id == book_id).first()
else:
shelf = ub.session.query(ub.Shelf).filter(or_(and_(ub.Shelf.user_id == int(current_user.id),
ub.Shelf.id == book_id),
and_(ub.Shelf.is_public == 1,
ub.Shelf.id == book_id))).first()
result = list()
# user is allowed to access shelf
if shelf:
books_in_shelf = ub.session.query(ub.BookShelf).filter(ub.BookShelf.shelf == book_id).order_by(
ub.BookShelf.order.asc()).all()
for book in books_in_shelf:
cur_book = calibre_db.get_book(book.book_id)
result.append(cur_book)
pagination = Pagination((int(off) / (int(config.config_books_per_page)) + 1), config.config_books_per_page,
len(result))
return render_xml_template('feed.xml', entries=result, pagination=pagination)
示例2: get_replica_locks
# 需要导入模块: from sqlalchemy.sql import expression [as 别名]
# 或者: from sqlalchemy.sql.expression import or_ [as 别名]
def get_replica_locks(scope, name, nowait=False, restrict_rses=None, session=None):
"""
Get the active replica locks for a file
:param scope: Scope of the did.
:param name: Name of the did.
:param nowait: Nowait parameter for the FOR UPDATE statement.
:param restrict_rses: Possible RSE_ids to filter on.
:param session: The db session.
:return: List of dicts {'rse': ..., 'state': ...}
:raises: NoResultFound
"""
query = session.query(models.ReplicaLock).filter_by(scope=scope, name=name)
if restrict_rses is not None:
rse_clause = []
for rse_id in restrict_rses:
rse_clause.append(models.ReplicaLock.rse_id == rse_id)
if rse_clause:
query = query.filter(or_(*rse_clause))
return query.with_for_update(nowait=nowait).all()
示例3: get_user
# 需要导入模块: from sqlalchemy.sql import expression [as 别名]
# 或者: from sqlalchemy.sql.expression import or_ [as 别名]
def get_user( session, broker_id, username=None, email=None, user_id=None ):
if username:
username = username.lower().strip()
if email:
email = email.lower().strip()
if user_id:
filter_obj = or_(User.id == user_id)
elif username and email:
filter_obj = or_( func.lower(User.username)==username, func.lower(User.email)==email )
elif username:
filter_obj = or_( func.lower(User.username)==username )
elif email:
filter_obj = or_( func.lower(User.email)==email )
else:
return None
user = session.query(User).filter(User.broker_id == broker_id).filter(filter_obj).first()
if user:
return user
return None
示例4: get_list
# 需要导入模块: from sqlalchemy.sql import expression [as 别名]
# 或者: from sqlalchemy.sql.expression import or_ [as 别名]
def get_list(session, broker_id, status_list, country = None, state=None, client_id=None, page_size = None, offset = None, sort_column = None, sort_order='ASC'):
query = session.query(User).filter( User.verified.in_( status_list ) ).filter(User.broker_id==broker_id)
if country:
query = query.filter(User.country_code == country)
if state:
query = query.filter(User.state == state)
if client_id:
query = query.filter( or_( User.username.like(client_id), User.email.like('%' + client_id + '%'), User.verification_data.like( '%' + client_id + '%') ) )
if page_size:
query = query.limit(page_size)
if offset:
query = query.offset(offset)
if sort_column:
if sort_order == 'ASC':
query = query.order(sort_column)
else:
query = query.order(sort_column).desc()
return query
示例5: search
# 需要导入模块: from sqlalchemy.sql import expression [as 别名]
# 或者: from sqlalchemy.sql.expression import or_ [as 别名]
def search(cls, querystr, sqlalchemy_query=None, user_name=None):
'''Search name, fullname, email and openid. '''
if sqlalchemy_query is None:
query = meta.Session.query(cls)
else:
query = sqlalchemy_query
qstr = '%' + querystr + '%'
filters = [
cls.name.ilike(qstr),
cls.fullname.ilike(qstr),
cls.openid.ilike(qstr),
]
# sysadmins can search on user emails
import ckan.authz as authz
if user_name and authz.is_sysadmin(user_name):
filters.append(cls.email.ilike(qstr))
query = query.filter(or_(*filters))
return query
示例6: sort_rses
# 需要导入模块: from sqlalchemy.sql import expression [as 别名]
# 或者: from sqlalchemy.sql.expression import or_ [as 别名]
def sort_rses(rses, session=None):
"""
Sort a list of RSES by free space (ascending order).
:param rses: List of RSEs.
:param session: The database session in use.
:returns: Sorted list of RSEs
"""
if not rses:
raise exception.InputValidationError('The list rses should not be empty!')
if len(rses) == 1:
return rses
false_value = False
query = session.query(models.RSE.rse, models.RSE.staging_area, models.RSEUsage.rse_id).\
filter(models.RSEUsage.source == 'storage').\
filter(models.RSEUsage.rse_id == models.RSE.id).\
filter(models.RSE.deleted == false_value)
condition = []
for rse in rses:
condition.append(models.RSE.id == rse['id'])
query = query.filter(or_(*condition)).order_by(models.RSEUsage.free.asc())
return [{'rse': rse, 'staging_area': staging_area, 'id': rse_id} for rse, staging_area, rse_id in query]
# return sample(rses, len(rses))
示例7: get_local_account_limits
# 需要导入模块: from sqlalchemy.sql import expression [as 别名]
# 或者: from sqlalchemy.sql.expression import or_ [as 别名]
def get_local_account_limits(account, rse_ids=None, session=None):
"""
Returns the account limits for the account on the list of rses.
:param account: Account to check the limit for.
:param rse_ids: List of RSE ids to check the limit for.
:param session: Database session in use.
:return: Dictionary {'rse_id': bytes, ...}.
"""
account_limits = {}
if rse_ids:
rse_id_clauses = []
for rse_id in rse_ids:
rse_id_clauses.append(and_(models.AccountLimit.rse_id == rse_id, models.AccountLimit.account == account))
rse_id_clause_chunks = [rse_id_clauses[x:x + 10] for x in range(0, len(rse_id_clauses), 10)]
for rse_id_chunk in rse_id_clause_chunks:
tmp_limits = session.query(models.AccountLimit).filter(or_(*rse_id_chunk)).all()
for limit in tmp_limits:
if limit.bytes == -1:
account_limits[limit.rse_id] = float("inf")
else:
account_limits[limit.rse_id] = limit.bytes
else:
account_limits_tmp = session.query(models.AccountLimit).filter(models.AccountLimit.account == account).all()
for limit in account_limits_tmp:
if limit.bytes == -1:
account_limits[limit.rse_id] = float("inf")
else:
account_limits[limit.rse_id] = limit.bytes
return account_limits
示例8: compile_expression
# 需要导入模块: from sqlalchemy.sql import expression [as 别名]
# 或者: from sqlalchemy.sql.expression import or_ [as 别名]
def compile_expression(self):
# So, this is what we expect here
# self.operator_str: $and, $or, $nor, $not
# self.value: list[FilterExpressionBase], or just FilterExpressionBase for $not
# This means `value` is a list of (column, operator, value), wrapped into an object.
# For example: (`age`, ">=", 18)
# And the current boolean clause puts it together.
if self.operator_str == '$not':
# This operator accepts a FilterExpressionBase, not a list.
criterion = self.sql_anded_together([
c.compile_expression()
for c in self.value
])
return not_(criterion)
else:
# Those operators share some steps, so they've been put into one section
# Their argument (self.value) is a list[FilterExpressionBase].
# Compile it
criteria = [self.sql_anded_together([c.compile_expression() for c in cs])
for cs in self.value]
# Build an expression for the boolean operator
if self.operator_str in ('$or', '$nor'):
cc = or_(*criteria)
# for $nor, it will be negated later
elif self.operator_str == '$and':
cc = and_(*criteria)
else:
raise NotImplementedError('Unknown operator: {}'.format(self.operator_str))
# Put parentheses around it when there are multiple clauses
cc = cc.self_group() if len(criteria) > 1 else cc
# for $nor, we promised to negate the result
if self.operator_str == '$nor':
return ~cc
# Done
return cc
示例9: _find_zone_transfer_requests
# 需要导入模块: from sqlalchemy.sql import expression [as 别名]
# 或者: from sqlalchemy.sql.expression import or_ [as 别名]
def _find_zone_transfer_requests(self, context, criterion, one=False,
marker=None, limit=None, sort_key=None,
sort_dir=None):
table = tables.zone_transfer_requests
ljoin = tables.zone_transfer_requests.join(
tables.zones,
tables.zone_transfer_requests.c.zone_id == tables.zones.c.id)
query = select(
[table, tables.zones.c.name.label("zone_name")]
).select_from(ljoin)
if not context.all_tenants:
query = query.where(or_(
table.c.tenant_id == context.project_id,
table.c.target_tenant_id == context.project_id))
return self._find(
context, table, objects.ZoneTransferRequest,
objects.ZoneTransferRequestList,
exceptions.ZoneTransferRequestNotFound,
criterion,
one=one, marker=marker, limit=limit, sort_dir=sort_dir,
sort_key=sort_key, query=query, apply_tenant_criteria=False
)
示例10: get_trade
# 需要导入模块: from sqlalchemy.sql import expression [as 别名]
# 或者: from sqlalchemy.sql.expression import or_ [as 别名]
def get_trade(session, trade_id=None):
if trade_id:
filter_obj = or_(Trade.id == trade_id)
else:
return None
trade = session.query(Trade).filter(filter_obj).first()
if trade:
return trade
return None
示例11: get
# 需要导入模块: from sqlalchemy.sql import expression [as 别名]
# 或者: from sqlalchemy.sql.expression import or_ [as 别名]
def get(cls, user_reference):
# double slashes in an openid often get turned into single slashes
# by browsers, so correct that for the openid lookup
corrected_openid_user_ref = cls.DOUBLE_SLASH.sub('://\\1',
user_reference)
query = meta.Session.query(cls).autoflush(False)
query = query.filter(or_(cls.name == user_reference,
cls.openid == corrected_openid_user_ref,
cls.id == user_reference))
return query.first()
示例12: user_ids_for_name_or_id
# 需要导入模块: from sqlalchemy.sql import expression [as 别名]
# 或者: from sqlalchemy.sql.expression import or_ [as 别名]
def user_ids_for_name_or_id(self, user_list=[]):
'''
This function returns a list of ids from an input that can be a list of
names or ids
'''
query = meta.Session.query(self.id)
query = query.filter(or_(self.name.in_(user_list),
self.id.in_(user_list)))
return [user.id for user in query.all()]
示例13: forward
# 需要导入模块: from sqlalchemy.sql import expression [as 别名]
# 或者: from sqlalchemy.sql.expression import or_ [as 别名]
def forward(cls, subjecttype_id, from_date, to_date, whole_time_required):
q = select([t_subjects.c.id, ]).where(t_subjects.c.subjecttype_id == subjecttype_id)
if from_date != None and to_date != None:
if whole_time_required:
q = q.where(and_(
t_subjects.c.created_at <= from_date
#or_(
# t_subjects.c.deleted_at == None,
# t_subjects.c.deleted_at >= to_date
#)
))
else:
q = q.where(or_(
and_(
t_subjects.c.created_at <= from_date,
#or_(
# t_subjects.c.deleted_at >= from_date,
# t_subjects.c.deleted_at == None,
#)
),
and_(
t_subjects.c.created_at >= from_date,
t_subjects.c.created_at <= to_date,
)
))
return [x.id for x in DBSession.execute(q).fetchall()]
#@classmethod
#def reverse(cls):
# return cls.forward()
示例14: complete
# 需要导入模块: from sqlalchemy.sql import expression [as 别名]
# 或者: from sqlalchemy.sql.expression import or_ [as 别名]
def complete(format='json'):
if not current_user.is_authenticated():
msg = _("You are not authorized to see that page")
return jsonify({'status': 'error', 'message': msg}, status=403)
query = db.session.query(Account)
filter_string = request.args.get('q', '') + '%'
query = query.filter(or_(Account.name.ilike(filter_string),
Account.fullname.ilike(filter_string)))
return jsonify(Pager(query))
示例15: all_by_account
# 需要导入模块: from sqlalchemy.sql import expression [as 别名]
# 或者: from sqlalchemy.sql.expression import or_ [as 别名]
def all_by_account(cls, account, order=True):
""" Query available datasets based on dataset visibility. """
from spendb.model.account import Account
has_user = account and account.is_authenticated()
has_admin = has_user and account.admin
q = db.session.query(cls)
if not has_admin:
criteria = [cls.private == False] # noqa
if has_user:
criteria.append(cls.managers.any(Account.id == account.id))
q = q.filter(or_(*criteria))
if order:
q = q.order_by(cls.label.asc())
return q