Abhishek Chandrasekhar 32438ed64f [ActiveStorage] Ensure that the _blob association is properly loaded when attaching ::One ... Consider a model with `One` and `Many` attachments configured: class User < ActiveRecord::Base has_one_attached :avatar has_many_attached :highlights end === One Attachment After attaching `One` attachment (`:avatar`), we can see that the associated `_blob` record (`:avatar_blob`) still returns as `nil`. user.avatar.attach(blob) user.avatar_attachment.present? => true user.avatar_blob.present? => false # Incorrect! This is a false negative. It happens because after the attachment and blob are built: 1. The record already has its `_blob` association loaded, as `nil` 2. the `::Attachment` is associated with the record but the `::Blob` only gets associated with the `::Attachment`, not the record itself In reality, the blob does in fact exist. We can verify this as follows: user.avatar.attach(blob) user.avatar_attachment.blob.present? => true # Blob does exist! The fix in this change is to simply assign the `::Blob` when assigning the `::Attachment`. After this fix is applied, we correctly observe: user.avatar.attach(blob) user.avatar_attachment.present? => true user.avatar_blob.present? => true # Woohoo! === Many Attachments We don't see this issue with `Many` attachments because the `_blob` association is already loaded as part of attaching more/newer blobs. user.highlights.attach(blob) user.highlights_attachments.any? => true user.highlights_blobs.any? => true		2019-02-26 11:10:38 -05:00
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many_test.rb	[ActiveStorage] Ensure that the _blob association is properly loaded when attaching ::One	2019-02-26 11:10:38 -05:00
one_test.rb	[ActiveStorage] Ensure that the _blob association is properly loaded when attaching ::One	2019-02-26 11:10:38 -05:00