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Context.py 1.42 KiB
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    from typing import Dict
    from ...engines._DatabaseEngine import _DatabaseEngine
    
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    from ..entity._RootEntity import _RootEntity
    
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    from ..entity.EntityCollection import EntityCollection
    from .Keys import KEY_CONTEXT, KEY_TOPOLOGIES
    from .Topology import Topology
    
    
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    VALIDATORS = {}  # no attributes accepted
    TRANSCODERS = {} # no transcoding applied to attributes
    
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    class Context(_RootEntity):
    
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        def __init__(self, context_uuid : str, database_engine : _DatabaseEngine):
    
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            super().__init__(database_engine, context_uuid, KEY_CONTEXT, VALIDATORS, TRANSCODERS)
    
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            self._topologies = EntityCollection(self, KEY_TOPOLOGIES)
    
        @property
        def parent(self) -> 'Context': return self
    
        @property
        def context(self) -> 'Context': return self
    
        @property
    
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        def context_uuid(self) -> str: return self._entity_uuid
    
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        @property
        def topologies(self) -> EntityCollection: return self._topologies
    
        def topology(self, topology_uuid : str) -> Topology: return Topology(topology_uuid, self)
    
        def create(self) -> 'Context': return self
    
        def delete(self):
            for topology_uuid in self.topologies.get(): self.topology(topology_uuid).delete()
    
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            self.attributes.delete()
    
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        def dump_id(self) -> Dict:
            return {
                'contextUuid': {'uuid': self.context_uuid},
            }
    
    
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        def dump(self) -> Dict:
            return {topology_uuid : self.topology(topology_uuid).dump() for topology_uuid in self.topologies.get()}