This change makes it possible for direct_upload endpoint to generate
"fake" presigns for storage...

This allows overriding parts of direct_upload logic by overriding a
method in the endpoint, inst...

Having this route as /:storage/:name was a wrong call. I thought that
it's useful to have as muc...

We need to simply assign it to the options that are inherited, like we
do with any other option....

This plugin deletes promoted files after the record has been updated
with the stored file. The p...

I initially thought that promoting will only ever be used for cached
files. However, Attacher#pr...

For extracting metadata we call `UploadedFile#to_io` and pass in a real
IO object. After we're d...

The name "delete_uploaded" indicates that all uploaded files will be
deleted, including cached U...

If we setup moving plugin and IO comes along for which the storage
doesn't support moving, the c...

We add `Attacher.dump` and `Attacher.load` for implementing custom
background jobs with custom f...

In Ruby 2.3.0 Rake is by default passing the "-w" flag to Ruby, which
enables warnings. A lot of...

Sometimes aws-sdk users will want to set

Aws.config[:ssl_ca_bundle] = '/path/to/self-signed-cer...

Sometimes the S3 URL can be generated like

http://s3.amazonaws.com/bucket-name/file.jpg

instea...

Sometimes users will want to save the record with skipping validations.
Before this didn't work ...

In Shrine 2 we want to default the :delegate option to false, because we
want that the default b...

If an object key contains spaces or other URL-unsafe characters, and
:host option is being used,...

Like with Attacher.version_names, I think it's useful to have a reader
method for the ":fallback...

So, currently, these is still a teeny-tiny chance that on subsequent
attachment updates an older...

By default migration_helpers will add a lot of methods to the model,
which delegate to the under...

The reason why we can't have only number of *output* files is because
the message "3 files proce...

When using the backup plugin with backgrounding, two scenarios could
happen when deleting a file...

Currently the backup was done immediately after storing, and only
afterwards promoting was done....

When using the recache plugin to generate some versions in the
foreground and some in the backgr...

It doesn't make sense that these methods are part of public interface,
since they're really mean...

Since keep_files was overriding `Shrine`, when combined with
backgrounding plugin, the delete ba...

For some reason, this specific unordered list the RDoc generator inlines
all in a single line (t...

These come really handy when you want to implement a "promote" hook in
your model:

class Post...

Caching into instance variables in this case can create surprising
behaviour. For example, when ...

We should generally never mutate input arguments, unless there is a good
reason for it. Here we ...

Sometimes we may want generate location differently depending on the
extracted metadata of the u...

In a scenario where the uploaded file data hash is POSTed, and there is
no metadata, URL-encodin...

Apparently the JDBC ActiveRecord adapter doesn't like to have queries
executed inside a Fiber wh...

Sometimes we want to generate remote_url messages more accurately, in
which case we need to have...

Currently remote_url by default returns the validation error: "file not
found or is to large". T...

* We don't need to tell FastImage to raise an error, we can just always
rewind the IO, because...

At the moment, when generating location, we're inferring the extension
solely based on the origi...

I don't think the strict 4-phase separation in tests always works that
well. It's more useful to...

When and error occurs on assigning a data URI or a remote URL, we should
clear any existing erro...

FastImage gem does not rewind IO cursor if the dimension extraction fails. Non rewinded IO cause...

This version fixes a URL-encoding bug where the "[]" characters wouldn't
get encoded back after ...

Most often models when models are namespaced, the namespace doesn't hold
a semantical value (e.g...

Previously if the class with an attachment was inside a namespace, the
class part of the locatio...

When S3 credentials are provided then `@s3.client.config.credentials`
will be set to an instance...

Currently calling `#original_filename`, `#size` or `#mime_type` will
error if the corresponding ...

Some storages have a concept of updating data of already uploaded files:

* Flickr - can update ...

To make it maximally easy for users to migrate from other libraries, we
provide step-to-step ins...

Avoid opening an UploadedFile just in order to close it

Currently for the sequel plugin Ruby attempts to reference an "Error"
constant inside the "Seque...

It's useful if the user wants to do something with the record, that they
can reuse the already i...

It can happen that a record gets deleted before updating (processing and
storing can take a whil...

Previously Shrine checked if attachment has changed outside of a
transaction. However, that mean...

It can happen that the queue gets clogged up making the job starts
later, or the job is retrying...

Fixed typo in code example

Fix ValidationHelpers docs: bad examples

Previously if custom metadata was assigned to a cached file, it wasn't
forwarded onto the stored...

The only notable thing was that we removed the "attr_accessor"
declaration. This is because it a...

Rubinius breaks in rack-test_app when using multipart, so we'll
temporary skip those tests until...