1 from sfa.util.sfatime import utcparse, datetime_to_string
2 from types import StringTypes
3 from datetime import datetime
4 from sfa.util.xml import XML
5 from sfa.trust.gid import GID
9 def __init__(self, dict=None, xml=None):
11 self.load_from_dict(dict)
14 xml_dict = xml_record.todict()
15 self.load_from_dict(xml_dict)
18 def get_field(self, field):
19 return self.__dict__.get(field, None)
22 # turns out the date_created field is received by the client as a 'created' int
23 # (and 'last_updated' does not make it at all)
25 def date_repr (self,fields):
26 if not isinstance(fields,list): fields=[fields]
28 value=getattr(self,field,None)
29 if isinstance (value,datetime):
30 return datetime_to_string (value)
31 elif isinstance (value,(int,float)):
32 return datetime_to_string(utcparse(value))
34 return "** undef_datetime **"
36 # it may be important to exclude relationships, which fortunately
38 def todict (self, exclude_types=[]):
41 if k.startswith('_'): return True
43 for exclude_type in exclude_types:
44 if isinstance (v,exclude_type): return True
46 keys=[k for (k,v) in d.items() if not exclude(k,v)]
47 return dict ( [ (k,d[k]) for k in keys ] )
50 return self.save_as_xml()
52 def load_from_dict (self, d):
53 for (k,v) in d.iteritems():
55 if isinstance(v, StringTypes) and v.lower() in ['true']: v=True
56 if isinstance(v, StringTypes) and v.lower() in ['false']: v=False
59 # in addition we provide convenience for converting to and from xml records
60 # for this purpose only, we need the subclasses to define 'fields' as either
61 # a list or a dictionary
63 fields = self.__dict__.keys()
66 def save_as_xml (self):
67 # xxx not sure about the scope here
68 input_dict = dict( [ (key, getattr(self,key)) for key in self.fields() if getattr(self,key,None) ] )
69 xml_record=XML("<record />")
70 xml_record.parse_dict (input_dict)
71 return xml_record.toxml()
73 def dump(self, format=None, dump_parents=False, sort=False):
77 format = format.lower()
79 self.dump_text(dump_parents,sort=sort)
81 print self.save_as_xml()
82 elif format == 'simple':
83 print self.dump_simple()
85 raise Exception, "Invalid format %s" % format
87 def dump_text(self, dump_parents=False, sort=False):
90 # print remaining fields
92 if sort: fields.sort()
93 for attrib_name in fields:
94 attrib = getattr(self, attrib_name)
96 if attrib_name.startswith('_'): continue
98 if callable (attrib): continue
100 if attrib_name == 'gid':
102 print GID(string=attrib).dump_string(8, dump_parents)
103 elif attrib_name in ['date created', 'last updated']:
104 print " %s: %s" % (attrib_name, self.date_repr(attrib_name))
106 print " %s: %s" % (attrib_name, attrib)
108 def dump_simple(self):