35 lines
971 B
Python
35 lines
971 B
Python
from sqlalchemy.inspection import inspect
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def get_resource_info(entity):
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serializers = {
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'tag': lambda tag: tag.first_name,
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'tag_category': lambda category: category.name,
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'comment': lambda comment: comment.comment_id,
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'post': lambda post: post.post_id,
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}
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resource_type = entity.__table__.name
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assert resource_type in serializers
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primary_key = inspect(entity).identity
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assert primary_key is not None
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assert len(primary_key) == 1
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resource_repr = serializers[resource_type](entity)
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assert resource_repr
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resource_id = primary_key[0]
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assert resource_id
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return (resource_type, resource_id, resource_repr)
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def get_aux_entity(session, get_table_info, entity, user):
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table, get_column = get_table_info(entity)
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return session \
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.query(table) \
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.filter(get_column(table) == get_column(entity)) \
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.filter(table.user_id == user.user_id) \
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.one_or_none()
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