0f858835f1
There are many `field_data` usages in the platform. Let's categorize them and determine, which are related to this change and in what way. - ModuleSystem's argument. This is what we're removing. - Runtime.field_data. Directly related, as Runtime is ModuleSystem's superclass. Analysis below this list is centered around this. - XBlock.field_data. Not related anymore. Runtime.construct_xblock was passing runtime's field_data to the XBlock's constructor, but that was ~8 years ago. - DescriptorSystem.field_data. Not related anymore. field_data has been removed from the constructor long time ago, but you still can see its ancestors instantiated with field_data=<value> here and there. It's important to note, that it has been added here in the first place, because field_data was required in Runtime. - DummySystem, CachingDescriptorSystem, ImportSystem. Not related anymore. All these classes inherit MakoDescriptorSystem, which inherits DescriptorSystem itself. So, see the previous item. - PreviewModuleSystem, TestModuleSystem, LmsModuleSystem — ModuleSystem's ancestors. Directly related. Basing on that, the only necessary check is to search for ModuleSystem's ancestors using `field_data` or `_deprecated_per_instance_field_data`. As there are no such cases, it's safe to remove `field_data`. Co-authored-by: Paulo Viadanna <paulo@opencraft.com> Co-authored-by: DubeySandeep <dubeysandeep.in@gmail.com>
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