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Release 2.2.0 #123
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Release 2.2.0 #123
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The `Type` class exposes a new function, `supports_operation(str) -> bool` which by default uses its `backing_type` to look up supported condition operators (`begins_with`, `in`). Dynamic types only support the basic built-in types, those are: * `String`, `Binary`, `Number`, `Boolean` * `Set(String)`, `Set(Binary)`, `Set(Number)` * `DynamicList`, `DynamicMap` This means that saving ie. a `DateTime` inside a `List(DateTime)` and loading it with `DynamicList` will give a list of strings; the detailed type information is not preserved anywhere. However, this makes it easy to store arbitrary primitive values: ``` class Blob(BaseModel): id = Column(Integer, hash_key=True) data = Column(DynamicMap) blob = Blob(id=1) blob.data = { "foo": "bar", "inner": [ {"another": "document"}, {"string", "set"}, [True, False, "FILE_NOT_FOUND"], ], {b"dead": b"beef"} } ```
(and internal type DynamicType)
This was referenced Aug 31, 2018
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Notable changes:
DynamicList
,DynamicMap
SearchIterator.all()
String
andBinary
transparently mapNone
to""
andb""
, respectivelyIssues covered:
SearchIterator.all()
0, 1, 2, 3, 4DynamicList
,DynamicMap
7, 8, 9, 10, 11atomic=
12