Add support for deferred NavigationProperty handling in manual models #3

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1. tpow commented on Jan 22, 2019

   

   tpow

   on Jan 22, 2019

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   It would be really helpful to be able to pass the Entity refs as strings.

   In the meantime, a workaround might be to specify the NavigationProperties in the __new__ method. This makes for somewhat ugly code, but it solves the problem when entities or types aren't declared in advance (possibly due to referencing each other), but will be available when the class is instantiated.

   For example:

   class ProductPart(Service.Entity):                                               
       __odata_type__ = 'ODataTest.Objects.ProductPart'                             
       __odata_collection__ = 'ProductParts'                                        
       id = IntegerProperty('PartID', primary_key=True)                             
       name = StringProperty('PartName')                                            
       size = DecimalProperty('Size')                                               
       product_id = IntegerProperty('ProductID')                                    
                                                    
       def __new__(cls, *args, **kwargs):
            cls.product = NavigationProperty('Product', ProductWithNavigation,
                      foreign_key=ProductPart.product_id)
            return super(ProductPart, cls).__new__(cls, *args, **kwargs) 
            # in Python 3 code, super(ProductPart, cls) can be simplified to super()```
2. tobias-reese

   added a commit that references this issue on Oct 23, 2024

   Merge pull request #3 from dreamdata-io/explicit-retry-on-timeout

   ...

   0bd60ec