59 lines
1.8 KiB
Python
59 lines
1.8 KiB
Python
# Eos - Verifiable elections
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# Copyright © 2017 RunasSudo (Yingtong Li)
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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class Field:
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def __init__(self, *args, **kwargs):
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if 'default' in kwargs:
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self.required = False
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self.default = kwargs['default']
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else:
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self.required = True
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self.default = None
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StringField = Field
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class EosObjectType(type):
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def before_new(meta, name, bases, attrs):
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# Process fields
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fields = {}
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for attr, val in dict(attrs).items():
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if isinstance(val, Field):
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fields[attr] = val
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attrs[attr] = val.to_python()
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attrs['_fields'] = fields
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return meta, name, bases, attrs
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def __new__(meta, name, bases, attrs):
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meta, name, bases, attrs = meta.before_new(meta, name, bases, attrs)
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#return super().__new__(meta, name, bases, attrs)
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return type.__new__(meta, name, bases, attrs)
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class EosObject():
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pass
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class DocumentObject(EosObject, metaclass=EosObjectType):
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def __init__(self, *args, **kwargs):
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# Process fields
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for name, field in self._fields.items():
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if name not in kwargs:
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continue
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setattr(self, name, kwargs.pop(name, field.default))
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# MongoDB distinguishes between these two, but we don't care
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TopLevelObject = DocumentObject
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EmbeddedObject = DocumentObject
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