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from __future__ import print_function, division, absolute_import
import uuid
import datetime
import simplejson as json
from flask import request
from flask.ext.sqlalchemy import SQLAlchemy
from wqflask import app
import sqlalchemy
from sqlalchemy import (Column, Integer, String, Table, ForeignKey, Unicode, Boolean, DateTime,
Text, Index)
from sqlalchemy.orm import relationship, backref
from wqflask.database import Base, init_db
# Define models
#roles_users = Table('roles_users',
# Column('user_id', Integer(), ForeignKey('user.the_id')),
# Column('role_id', Integer(), ForeignKey('role.the_id')))
#class Role(Base):
# __tablename__ = "role"
# id = Column(Unicode(36), primary_key=True, default=lambda: unicode(uuid.uuid4()))
# name = Column(Unicode(80), unique=True, nullable=False)
# description = Column(Unicode(255))
class User(Base):
__tablename__ = "user"
id = Column(Unicode(36), primary_key=True, default=lambda: unicode(uuid.uuid4()))
email_address = Column(Unicode(50), unique=True, nullable=False)
# Todo: Turn on strict mode for Mysql
password = Column(Text, nullable=False)
full_name = Column(Unicode(50))
organization = Column(Unicode(50))
active = Column(Boolean(), nullable=False, default=True)
registration_info = Column(Text) # json detailing when they were registered, etc.
confirmed = Column(Text) # json detailing when they confirmed, etc.
superuser = Column(Text) # json detailing when they became a superuser, otherwise empty
# if not superuser
logins = relationship("Login",
order_by="desc(Login.timestamp)",
lazy='dynamic', # Necessary for filter in login_count
foreign_keys="Login.user",
)
user_collections = relationship("UserCollection",
order_by="asc(UserCollection.name)",
lazy='dynamic',
)
def display_num_collections(self):
"""
Returns the number of collections or a blank string if there are zero.
Because this is so unimportant...we wrap the whole thing in a try/expect...last thing we
want is a webpage not to be displayed because of an error here
Importand TODO: use redis to cache this, don't want to be constantly computing it
"""
try:
num = len(list(self.user_collections))
return display_collapsible(num)
except Exception as why:
print("Couldn't display_num_collections:", why)
return ""
def get_collection_by_name(self, collection_name):
try:
collect = self.user_collections.filter_by(name=collection_name).one()
except sqlalchemy.orm.exc.NoResultFound:
collect = None
return collect
@property
def name_and_org(self):
"""Nice shortcut for printing out who the user is"""
if self.organization:
return "{} from {}".format(self.full_name, self.organization)
else:
return self.full_name
@property
def login_count(self):
return self.logins.filter_by(successful=True).count()
@property
def confirmed_at(self):
if self.confirmed:
confirmed_info = json.loads(self.confirmed)
return confirmed_info['timestamp']
else:
return None
@property
def superuser_info(self):
if self.superuser:
return json.loads(self.superuser)
else:
return None
@property
def crowner(self):
"""If made superuser, returns object of person who did the crowning"""
if self.superuser:
superuser_info = json.loads(self.superuser)
crowner = User.query.get(superuser_info['crowned_by'])
return crowner
else:
return None
@property
def most_recent_login(self):
try:
return self.logins[0]
except IndexError:
return None
#roles = relationship('Role', secondary=roles_users,
# backref=backref('users', lazy='dynamic'))
class Login(Base):
__tablename__ = "login"
id = Column(Unicode(36), primary_key=True, default=lambda: unicode(uuid.uuid4()))
user = Column(Unicode(36), ForeignKey('user.id'))
timestamp = Column(DateTime(), default=lambda: datetime.datetime.utcnow())
ip_address = Column(Unicode(39))
successful = Column(Boolean(), nullable=False) # False if wrong password was entered
session_id = Column(Text) # Set only if successfully logged in, otherwise should be blank
# Set to user who assumes identity if this was a login for debugging purposes by a superuser
assumed_by = Column(Unicode(36), ForeignKey('user.id'))
def __init__(self, user):
self.user = user.id
self.ip_address = request.remote_addr
##################################################################################################
class UserCollection(Base):
__tablename__ = "user_collection"
id = Column(Unicode(36), primary_key=True, default=lambda: unicode(uuid.uuid4()))
user = Column(Unicode(36), ForeignKey('user.id'))
# I'd prefer this to not have a length, but for the index below it needs one
name = Column(Unicode(50))
created_timestamp = Column(DateTime(), default=lambda: datetime.datetime.utcnow())
changed_timestamp = Column(DateTime(), default=lambda: datetime.datetime.utcnow())
members = Column(Text) # We're going to store them as a json list
# This index ensures a user doesn't have more than one collection with the same name
__table_args__ = (Index('usercollection_index', "user", "name"), )
@property
def num_members(self):
print("members are:", json.loads(self.members))
return len(json.loads(self.members))
#@property
#def display_num_members(self):
# return display_collapsible(self.num_members)
def members_as_set(self):
return set(json.loads(self.members))
def display_collapsible(number):
if number:
return number
else:
return ""
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