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Explicitly define `columns` method as an interface
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`ActiveRecord::ConnectionAdapters::SchemaStatements#columns` is defined
here as an interface method here. So changes to raise `NotImplementedError`
same as `tables`, `views` ...etc.
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These methods are more expensive than the alternatives, and have strange semantics that are likely undesirable.
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Remove `limit: 11` as backward-compatibility with Rails 2.0
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Integer limit as a byte size was introduced from Rails 2.1.
`limit: 11` is not a byte size, but take care for backward-compatibility
with Rails 2.0 (a892af6). Integer limit out of range should be allowed
to raise by #6349. I think we should remove this backward-compatibility.
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Clarify DatabaseStatements#execute docs re: memory usage.
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instead of loading relation
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Fix a bug with initialize schema_migrations table
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This line causes an error when executing the command: `rails db:drop db:create db:schema:load`
ActiveRecord::StatementInvalid: PG::SyntaxError: ERROR: syntax error at or near "{"
LINE 1: ...NSERT INTO "schema_migrations" (version) VALUES (#{v}), (#{v...
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Consistently warn that passing an offset to `find_nth` is deprecated
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@bogdan pointed out that a `loaded?` relation would not warn that the supplied
offset would be removed. This fixes that oversight.
https://github.com/rails/rails/commit/16a476e4f8f802774ae7c8dca2e59f4e672dc591#commitcomment-15706834
Although this second argument is probably not widely used, and would be
ignored anyway in the loaded? case, this could protect callers from gotchas.
[Ben Woosley & Victor Kmita]
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Raise AR::IrreversibleOrderError when #reverse_order can not do it's job
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Raises when #reverse_order can not process SQL order instead of making
invalid SQL before this patch
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The commit which originally added this behavior did not consider that
doing `Subclass.new` does not actually populate the `type` field in the
attributes (though perhaps it should). We simply need to not use the
defaults for STI related things unless we are instantiating the base
class.
Fixes #23285.
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Improvement in ActiveRecord::Persistence doc [ci skip]
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We found that inserting all 600 schema_migrations for our mid-sized app takes about a minute on a cloud based CI environment.
I assume that the original code did not use multi-row-insert because SQLite3 was not supporting the syntax back then,
but it's been supported since 3.7.11: http://www.sqlite.org/releaselog/3_7_11.html
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documentation fix
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* 5-0-beta-sec:
bumping version
fix version update task to deal with .beta1.1
Eliminate instance level writers for class accessors
allow :file to be outside rails root, but anything else must be inside the rails view directory
Don't short-circuit reject_if proc
stop caching mime types globally
use secure string comparisons for basic auth username / password
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Instance level writers can have an impact on how the Active Model /
Record objects are saved. Specifically, they can be used to bypass
validations. This is a problem if mass assignment protection is
disabled and specific attributes are passed to the constructor.
CVE-2016-0753
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When updating an associated record via nested attribute hashes the
reject_if proc could be bypassed if the _destroy flag was set in the
attribute hash and allow_destroy was set to false.
The fix is to only short-circuit if the _destroy flag is set and the
option allow_destroy is set to true. It also fixes an issue where
a new record wasn't created if _destroy was set and the option
allow_destroy was set to false.
CVE-2015-7577
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[close #23009] Limit key length
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Mysql has a weird bug where it cannot index a string column of utf8mb4 if it is over a certain character limit. To get compatibility with msql we can add a limit to the key column. 191 characters is a very long key, it seems reasonable to limit across all adapters since using a longer key wouldn't be supported in mysql.
Thanks to @kamipo for the original PR and the test refactoring.
Conversation: https://github.com/rails/rails/pull/23009#issuecomment-171416629
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Add missing source_type if provided on hmt which belongs to an sti re…
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Fixes #23209
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- We don't need the select scope added by user as we only want to max
timestamp and size of the collection. So we already know which columns
to select.
- Additionally having user defined columns in select scope blows the cache_key
method with PostGreSQL because it needs all `selected` columns in the group_by
clause or aggregate function.
- Fixes #23038.
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prathamesh-sonpatki/fix-cache-key-for-queries-with-offset
Fix ActiveRecord::Relation#cache_key for relations with no results
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- When relations return no result or 0 result then cache_key should
handle it gracefully instead of blowing up trying to access
`result[:size]` and `result[:timestamp]`.
- Fixes #23063.
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- Using `references` or `belongs_to` in migrations will always add index
for the referenced column by default, without adding `index:true` option
to generated migration file.
- Users can opt out of this by passing `index: false`.
- Legacy migrations won't be affected by this change. They will continue
to run as they were before.
- Fixes #18146
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Because of the changes in #22967 the assumption in #18907 is no longer
true because the internal metadata feature for Active Record requires
a working environment.
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Define `:foreign_type` as a valid option in `SingularAssociation`
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`:foreign_type` is a valid option for `belongs_to` and `has_one`
so remove this to `SingularAssociation`.
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This fixes incorrect assumptions made by e991c7b that we can assume the
DB is already casting the value for us. The enum type needs additional
information to perform casting, and needs a subtype.
I've opted not to call `super` in `cast`, as we have a known set of
types which we accept there, and the subtype likely doesn't accept them
(symbol -> integer doesn't make sense)
Close #23190
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prathamesh-sonpatki/fix-cache-key-for-loaded-empty-collection
Fix ActiveRecord::Relation#cache_key for loaded empty collection
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- Before this patch if we try to find cache_key of a loaded but empty
collection it used to give error because of trying to call `updated_at`
on `nil` value generated by
`collection.max_by(×tamp_column).public_send(timestamp_column)`.
- This commit fixes above error by checking if size is greater than zero
or not.
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This is a similar case to wanting ot use bind params for limit and
offset. Right now passing a range grows the amount of prepared
statements in an unbounded fashion. We could avoid using prepared
statements in that case, similar to what we do with arrays, but there's
a known number of variants for ranges.
This ends up duplicating some of the logic from Arel for how to handle
potentially infinite ranges, and that behavior may be removed from Arel
in the future.
Fixes #23074
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Just noticed this on the [edge API].
[ci skip]
[edge API]: http://edgeapi.rubyonrails.org/classes/ActiveRecord/Transactions/ClassMethods.html
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We want this method to be the single canonical source of information
about type metadata related to a model. This is the method I've been
continuously recommending people use if they need this sort of access,
as I have no plans to remove or change it at any point in the future.
We can do ourselves a favor and get people to use this instead of
relying on some other part of the internals that they shouldn't be by
making this method public.
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Closes #21986.
This makes it possible to write custom types that define a different
mapping for STI columns.
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It has been to use an overall rails command in ea4f0e2baba8653b03fba154357842933cf7b778, in order to unify.
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instead of start_at/end_at based on comments
at https://github.com/rails/rails/pull/12257#issuecomment-74688344
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Add `:expression` option support on the schema default
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