[FIX] models: allow constraint methods triggered by function fields
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@ -747,10 +747,11 @@ class BaseModel(object):
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methods = []
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for attr, func in getmembers(cls, is_constraint):
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for name in func._constrains:
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if name not in cls._fields:
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field = cls._fields.get(name)
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if not field:
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_logger.warning("method %s.%s: @constrains parameter %r is not a field name", cls._name, attr, name)
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if not cls._fields[name].column:
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_logger.warning("method %s.%s: @constrains parameter %r is not stored", cls._name, attr, name)
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if not (field.store or field.column and field.column._fnct_inv):
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_logger.warning("method %s.%s: @constrains parameter %r is not writeable", cls._name, attr, name)
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methods.append(func)
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# optimization: memoize result on cls, it will not be recomputed
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