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-rw-r--r--activestorage/lib/active_storage/errors.rb8
1 files changed, 8 insertions, 0 deletions
diff --git a/activestorage/lib/active_storage/errors.rb b/activestorage/lib/active_storage/errors.rb
index 0547b8e705..f4bf66a615 100644
--- a/activestorage/lib/active_storage/errors.rb
+++ b/activestorage/lib/active_storage/errors.rb
@@ -4,8 +4,16 @@ module ActiveStorage
# Generic base class for all Active Storage exceptions.
class Error < StandardError; end
+ # Raised when ActiveStorage::Blob#variant is called on a blob that isn't variable.
+ # Use ActiveStorage::Blob#variable? to determine whether a blob is variable.
class InvariableError < Error; end
+
+ # Raised when ActiveStorage::Blob#preview is called on a blob that isn't previewable.
+ # Use ActiveStorage::Blob#previewable? to determine whether a blob is previewable.
class UnpreviewableError < Error; end
+
+ # Raised when ActiveStorage::Blob#representation is called on a blob that isn't representable.
+ # Use ActiveStorage::Blob#representable? to determine whether a blob is representable.
class UnrepresentableError < Error; end
# Raised when uploaded or downloaded data does not match a precomputed checksum.