record_id = Column (Integer, primary_key=True)
# this is the discriminator that tells which class to use
classtype = Column (String)
+ # in a first version type was the discriminator
+ # but that could not accomodate for 'authority+sa' and the like
type = Column (String)
hrn = Column (String)
gid = Column (String)
if dict: self.load_from_dict (dict)
def __repr__(self):
- result="[Record id=%s, type=%s, hrn=%s, authority=%s, pointer=%s" % \
+ result="<Record id=%s, type=%s, hrn=%s, authority=%s, pointer=%s" % \
(self.record_id, self.type, self.hrn, self.authority, self.pointer)
# skip the uniform '--- BEGIN CERTIFICATE --' stuff
if self.gid: result+=" gid=%s..."%self.gid[28:36]
else: result+=" nogid"
- result += "]"
+ result += ">"
return result
@validates ('gid')
self.last_updated=now
##############################
-class RegUser (RegRecord):
- __tablename__ = 'users'
- # these objects will have type='user' in the records table
- __mapper_args__ = { 'polymorphic_identity' : 'user' }
- record_id = Column (Integer, ForeignKey ("records.record_id"), primary_key=True)
- email = Column ('email', String)
-
- # append stuff at the end of the record __repr__
- def __repr__ (self):
- result = RegRecord.__repr__(self).replace("Record","User")
- result.replace ("]"," email=%s"%self.email)
- result += "]"
- return result
-
- @validates('email')
- def validate_email(self, key, address):
- assert '@' in address
- return address
-
+# all subclasses define a convenience constructor with a default value for type,
+# and when applicable a way to define local fields in a kwd=value argument
+####################
class RegAuthority (RegRecord):
__tablename__ = 'authorities'
__mapper_args__ = { 'polymorphic_identity' : 'authority' }
record_id = Column (Integer, ForeignKey ("records.record_id"), primary_key=True)
+ def __init__ (self, **kwds):
+ # fill in type if not previously set
+ if 'type' not in kwds: kwds['type']='authority'
+ # base class constructor
+ RegRecord.__init__(self, **kwds)
+
# no proper data yet, just hack the typename
def __repr__ (self):
return RegRecord.__repr__(self).replace("Record","Authority")
+####################
+# slice x user (researchers) association
+slice_researcher_table = \
+ Table ( 'slice_researcher', Base.metadata,
+ Column ('slice_id', Integer, ForeignKey ('records.record_id'), primary_key=True),
+ Column ('researcher_id', Integer, ForeignKey ('records.record_id'), primary_key=True),
+ )
+
+####################
class RegSlice (RegRecord):
__tablename__ = 'slices'
__mapper_args__ = { 'polymorphic_identity' : 'slice' }
record_id = Column (Integer, ForeignKey ("records.record_id"), primary_key=True)
-
+ #### extensions come here
+ reg_researchers = relationship \
+ ('RegUser',
+ secondary=slice_researcher_table,
+ primaryjoin=RegRecord.record_id==slice_researcher_table.c.slice_id,
+ secondaryjoin=RegRecord.record_id==slice_researcher_table.c.researcher_id,
+ backref="reg_slices_as_researcher")
+
+ def __init__ (self, **kwds):
+ if 'type' not in kwds: kwds['type']='slice'
+ RegRecord.__init__(self, **kwds)
+
def __repr__ (self):
return RegRecord.__repr__(self).replace("Record","Slice")
+####################
class RegNode (RegRecord):
__tablename__ = 'nodes'
__mapper_args__ = { 'polymorphic_identity' : 'node' }
record_id = Column (Integer, ForeignKey ("records.record_id"), primary_key=True)
+ def __init__ (self, **kwds):
+ if 'type' not in kwds: kwds['type']='node'
+ RegRecord.__init__(self, **kwds)
+
def __repr__ (self):
return RegRecord.__repr__(self).replace("Record","Node")
+####################
+class RegUser (RegRecord):
+ __tablename__ = 'users'
+ # these objects will have type='user' in the records table
+ __mapper_args__ = { 'polymorphic_identity' : 'user' }
+ record_id = Column (Integer, ForeignKey ("records.record_id"), primary_key=True)
+ #### extensions come here
+ email = Column ('email', String)
+ # can't use name 'keys' here because when loading from xml we're getting
+ # a 'keys' tag, and assigning a list of strings in a reference column like this crashes
+ reg_keys = relationship \
+ ('RegKey', backref='reg_user',
+ cascade="all, delete, delete-orphan")
+
+ # so we can use RegUser (email=.., hrn=..) and the like
+ def __init__ (self, **kwds):
+ # handle local settings
+ if 'email' in kwds: self.email=kwds.pop('email')
+ if 'type' not in kwds: kwds['type']='user'
+ RegRecord.__init__(self, **kwds)
+
+ # append stuff at the end of the record __repr__
+ def __repr__ (self):
+ result = RegRecord.__repr__(self).replace("Record","User")
+ result.replace (">"," email=%s"%self.email)
+ result += ">"
+ return result
+
+ @validates('email')
+ def validate_email(self, key, address):
+ assert '@' in address
+ return address
+
+####################
+# xxx tocheck : not sure about eager loading of this one
+# meaning, when querying the whole records, we expect there should
+# be a single query to fetch all the keys
+# or, is it enough that we issue a single query to retrieve all the keys
+class RegKey (Base):
+ __tablename__ = 'keys'
+ key_id = Column (Integer, primary_key=True)
+ record_id = Column (Integer, ForeignKey ("records.record_id"))
+ key = Column (String)
+ pointer = Column (Integer, default = -1)
+
+ def __init__ (self, key, pointer=None):
+ self.key=key
+ if pointer: self.pointer=pointer
+
+ def __repr__ (self):
+ result="<key id=%s key=%s..."%(self.key_id,self.key[8:16],)
+ try: result += " user=%s"%self.reg_user.record_id
+ except: result += " no-user"
+ result += ">"
+ return result
+
##############################
-# although the db needs of course to be reachable,
+# although the db needs of course to be reachable for the following functions
# the schema management functions are here and not in alchemy
# because the actual details of the classes need to be known
# migrations: this code has no notion of the previous versions
elif type=='node':
result=RegNode (dict=record_dict)
else:
+ logger.debug("Untyped RegRecord instance")
result=RegRecord (dict=record_dict)
logger.info ("converting dict into Reg* with type=%s"%type)
logger.info ("returning=%s"%result)
xml_dict = xml_record.todict()
logger.info("load from xml, keys=%s"%xml_dict.keys())
return make_record_dict (xml_dict)
+
git://git.onelab.eu / sfa.git / blobdiff