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32 lines
845 B
Python
32 lines
845 B
Python
from django.db import models
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from django.db.models.query import QuerySet
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from django.db.models.manager import Manager
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from graphene.utils import memoize, LazyMap
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# @memoize
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def get_type_for_model(schema, model):
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schema = schema
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types = schema.types.values()
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for _type in types:
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type_model = hasattr(_type, '_meta') and getattr(
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_type._meta, 'model', None)
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if model == type_model:
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return _type
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def get_reverse_fields(model):
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for name, attr in model.__dict__.items():
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related = getattr(attr, 'related', None)
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if isinstance(related, models.ManyToOneRel):
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yield related
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def lazy_map(value, func):
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if isinstance(value, Manager):
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value = value.get_queryset()
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if isinstance(value, QuerySet):
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return LazyMap(value, func)
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return value
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