| Line | |
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| 1 | class Record(object): |
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| 2 | _identity_field = None |
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| 3 | _default = {} |
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| 4 | _format = {} |
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| 5 | |
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| 6 | def get(self, field): |
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| 7 | v = getattr(self, field, None) |
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| 8 | if v is None: |
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| 9 | return self._default.get(field) |
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| 10 | return v |
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| 11 | |
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| 12 | def _formatField(self, field): |
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| 13 | v = self.get(field) |
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| 14 | func = self._format.get(field) |
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| 15 | if func: |
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| 16 | return func(v) |
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| 17 | if callable(v): |
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| 18 | v = v() |
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| 19 | if not hasattr(v, '__iter__'): |
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| 20 | return repr(v) |
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| 21 | if len(v) == 0: |
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| 22 | return '[]' |
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| 23 | return '[%d x %s]'%(len(v), type(v[0]).__name__) |
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| 24 | |
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| 25 | @classmethod |
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| 26 | def _ignore(cls): |
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| 27 | return [cls._identity_field] |
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| 28 | |
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| 29 | def _fields(self): |
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| 30 | ignore = self._ignore() |
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| 31 | keys = sorted(self.c.keys()) |
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| 32 | return [(k,self._formatField(k)) for k in keys if k not in ignore] |
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| 33 | |
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| 34 | def __repr__(self): |
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| 35 | classname = self.__class__.__name__ |
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| 36 | |
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| 37 | if self._identity_field: |
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| 38 | identity = self.__dict__.get(self._identity_field) |
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| 39 | identity = ' ' + (identity and repr(identity) or 'hash=%d'%hash(self)) |
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| 40 | else: |
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| 41 | identity = '' |
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| 42 | |
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| 43 | payload = " ".join(["%s=%s" % (k, v) for k,v in self._fields()]) |
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| 44 | if len(payload) > 0: |
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| 45 | payload = ": "+payload |
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| 46 | |
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| 47 | return "<%s%s%s>" % (classname, identity, payload) |
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