X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=sfa%2Fstorage%2Frecord.py;h=b88b02a0c7e4e4789f61fee43c0894185d2c0c92;hb=HEAD;hp=b31ed26a8c8e806819298f5ca1ef78e0bfa28f6a;hpb=a7f2c200e3337fe74e92562f1aeb9d6f8c1eb63c;p=sfa.git diff --git a/sfa/storage/record.py b/sfa/storage/record.py index b31ed26a..b88b02a0 100644 --- a/sfa/storage/record.py +++ b/sfa/storage/record.py @@ -1,99 +1,120 @@ + + from sfa.util.sfatime import utcparse, datetime_to_string -from types import StringTypes from datetime import datetime from sfa.util.xml import XML from sfa.trust.gid import GID +from sfa.util.sfalogging import logger + + class Record: - def __init__(self, dict=None, xml=None): + def __init__(self, dict=None, xml_str=None): if dict: self.load_from_dict(dict) - elif xml: - xml_record = XML(xml) - xml_dict = xml_record.todict() - self.load_from_dict(xml_dict) + elif xml_str: + xml = XML(xml_str) + xml_dict = xml.todict() + self.load_from_dict(xml_dict) + + def get_field(self, field): + return self.__dict__.get(field, None) # xxx fixme # turns out the date_created field is received by the client as a 'created' int # (and 'last_updated' does not make it at all) # let's be flexible - def date_repr (self,fields): - if not isinstance(fields,list): fields=[fields] + def date_repr(self, fields): + if not isinstance(fields, list): + fields = [fields] for field in fields: - value=getattr(self,field,None) - if isinstance (value,datetime): - return datetime_to_string (value) - elif isinstance (value,(int,float)): + value = getattr(self, field, None) + if isinstance(value, datetime): + return datetime_to_string(value) + elif isinstance(value, (int, float)): return datetime_to_string(utcparse(value)) # fallback return "** undef_datetime **" - - def todict (self): - d=self.__dict__ - keys=[k for k in d.keys() if not k.startswith('_')] - return dict ( [ (k,d[k]) for k in keys ] ) - - def load_from_dict (self, d): - for (k,v) in d.iteritems(): + + # + # need to filter out results, esp. wrt relationships + # exclude_types must be a tuple so we can use isinstance + # + def record_to_dict(self, exclude_types=None): + if exclude_types is None: + exclude_types = () + d = self.__dict__ + + def exclude(k, v): + return k.startswith('_') or isinstance(v, exclude_types) + keys = [k for k, v in list(d.items()) if not exclude(k, v)] + return {k: d[k] for k in keys} + + def toxml(self): + return self.save_as_xml() + + def load_from_dict(self, d): + for (k, v) in d.items(): # experimental - if isinstance(v, StringTypes) and v.lower() in ['true']: v=True - if isinstance(v, StringTypes) and v.lower() in ['false']: v=False - setattr(self,k,v) + if isinstance(v, str) and v.lower() in ['true']: + v = True + if isinstance(v, str) and v.lower() in ['false']: + v = False + setattr(self, k, v) # in addition we provide convenience for converting to and from xml records # for this purpose only, we need the subclasses to define 'fields' as either # a list or a dictionary - def xml_fields (self): - fields=self.fields - if isinstance(fields,dict): fields=fields.keys() + def fields(self): + fields = list(self.__dict__.keys()) return fields - def save_as_xml (self): + def save_as_xml(self): # xxx not sure about the scope here - input_dict = dict( [ (key, getattr(self.key), ) for key in self.xml_fields() if getattr(self,key,None) ] ) - xml_record=XML("") - xml_record.parse_dict (input_dict) + input_dict = dict([(key, getattr(self, key)) + for key in self.fields() if getattr(self, key, None)]) + xml_record = XML("") + xml_record.parse_dict(input_dict) return xml_record.toxml() - def dump(self, format=None, dump_parents=False): + def dump(self, format=None, dump_parents=False, sort=False): if not format: format = 'text' else: format = format.lower() if format == 'text': - self.dump_text(dump_parents) + self.dump_text(dump_parents, sort=sort) elif format == 'xml': - print self.save_to_string() + print(self.save_as_xml()) elif format == 'simple': - print self.dump_simple() + print(self.dump_simple()) else: - raise Exception, "Invalid format %s" % format - - def dump_text(self, dump_parents=False): - # print core fields in this order - core_fields = [ 'hrn', 'type', 'authority', 'date_created', 'created', 'last_updated', 'gid', ] - print "".join(['=' for i in range(40)]) - print "RECORD" - print " hrn:", self.hrn - print " type:", self.type - print " authority:", self.authority - print " date created:", self.date_repr( ['date_created','created'] ) - print " last updated:", self.date_repr('last_updated') - print " gid:" - if self.gid: - print GID(self.gid).dump_string(8, dump_parents) + raise Exception("Invalid format %s" % format) + def dump_text(self, dump_parents=False, sort=False): + print(40 * '=') + print("RECORD") # print remaining fields - for attrib_name in dir(self): + fields = self.fields() + if sort: + fields.sort() + for attrib_name in fields: attrib = getattr(self, attrib_name) # skip internals - if attrib_name.startswith('_'): continue - # skip core fields - if attrib_name in core_fields: continue + if attrib_name.startswith('_'): + continue # skip callables - if callable (attrib): continue - print " %s: %s" % (attrib_name, attrib) + if callable(attrib): + continue + # handle gid + if attrib_name == 'gid': + print(" gid:") + print(GID(string=attrib).dump_string(8, dump_parents)) + elif attrib_name in ['date created', 'last updated']: + print(" %s: %s" % (attrib_name, self.date_repr(attrib_name))) + else: + print(" %s: %s" % (attrib_name, attrib)) def dump_simple(self): - return "%s"%self + return "%s" % self