| Commit message (Collapse) | Author | Age | Files | Lines |
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Currently `tinyblob` is dumped to `t.binary "tiny_blob", limit: 255`.
But `t.binary ... limit: 255` is generating SQL to `varchar(255)`.
It is incorrect. This commit fixes this problem.
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jbranchaud/reorder-has-many-assocation-constraints
Reorder application of has_many association constraints.
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With `unscope!` called last, it undoes `where` constraints of the same
value when the `where` is chained after the `unscope`. This is what a
`rewhere` does. This is undesirable behavior.
The included tests demonstrate both the `unscope(...).where(...)`
behavior as well as the direct use of `rewhere(...)`.
This is in reference to #21955.
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unscope->where->order
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Delete needless `require 'active_support/deprecation'`
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When `require 'active_support/rails'`, 'active_support/deprecation'
is automatically loaded.
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This commit follow up of 4d8f62d.
The difference from 4d8f62d are below:
* Change `WhereClauseFactory` to accept `Arel::Nodes::Node`
* Change test cases of `relation_test.rb`
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This reverts commit 4d8f62dcfa0a5157b3facbd71f75fc6639636347.
Reason: This broke the build. Please recommit again when it is green.
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`WhereClauseFactory` handles all other branches based on argument types,
so the code fits more naturally here, and it's just where the
responsibility belongs.
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[#20473]
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This type adds an escape hatch to apps for which string duping causes
unacceptable memory growth. The reason we are duping them is in order to
detect mutation, which was a feature added to 4.2 in #15674. The string
type was modified to support this behavior in #15788.
Memory growth is really only a concern for string types, as it's the
only mutable type where the act of coersion does not create a new object
regardless (as we're usually returning an object of a different class).
I do feel strongly that if we are going to support detecting mutation,
we should do it universally for any type which is mutable. While it is
less common and ideomatic to mutate strings than arrays or hashes, there
shouldn't be rules or gotchas to understanding our behavior.
However, I also appreciate that for apps which are using a lot of string
columns, this would increase the number of allocations by a large
factor. To ensure that we keep our contract, if you'd like to opt out of
mutation detection on strings, you'll also be option out of mutation of
those strings.
I'm not completely married to the thought that strings coming out of
this actually need to be frozen -- and I think the name is correct
either way, as the purpose of this is to provide a string type which
does not detect mutation.
In the new implementation, I'm only overriding `cast_value`. I did not
port over the duping in `serialize`. I cannot think of a reason we'd
need to dup the string there, and the tests pass without it.
Unfortunately that line was introduced at a time where I was not nearly
as good about writing my commit messages, so I have no context as to
why I added it. Thanks past Sean. You are a jerk.
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When passing an instance of `ActiveRecord::Base` to `#update`, it would
internally call `#find`, resulting in a misleading deprecation warning.
This change gives this deprecated use of `#update` its own, meaningful
warning.
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Dirty checking keeps a hash where the keys are the column name and the
value is a dup of the value from the database[1]. This hash is kept for
every AR object, which means that we dup every column name for every AR
object that does dirty checking. Freezing the column name prevents the
column name from being duped and reduced overall string allocations.
Here is a benchmark to demonstrate:
```ruby
require 'active_record'
class Topic < ActiveRecord::Base
end
20.times do |i|
Process.waitpid fork {
ActiveRecord::Base.establish_connection adapter: 'sqlite3', database: ':memory:'
ActiveRecord::Base.connection.instance_eval do
create_table(:topics) do |t|
t.string :title, limit: 250
t.string :author_name
t.string :author_email_address
t.string :parent_title
t.string :type
t.string :group
i.times do |j|
t.string :"aaa#{j}"
end
t.timestamps null: true
end
end
ObjectSpace::AllocationTracer.setup(%i{type})
Topic.create title: "aaron" # heat cache
result = ObjectSpace::AllocationTracer.trace do
10.times do |i|
Topic.create title: "aaron #{i}"
end
end
puts "#{Topic.columns.length},#{(result.find { |k,v| k.first == :T_STRING }.last.first / 10)}"
}
end
```
1. https://github.com/rails/rails/blob/3ad381c3f8598d9920998c8949a96b5f62b280dd/activerecord/lib/active_record/attribute_set/builder.rb#L102
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The focus of this change is to make the API more accessible.
References to method and classes should be linked to make it easy to
navigate around.
This patch makes exzessiv use of `rdoc-ref:` to provide more readable
docs. This makes it possible to document `ActiveRecord::Base#save` even
though the method is within a separate module
`ActiveRecord::Persistence`. The goal here is to bring the API closer to
the actual code that you would write.
This commit only deals with Active Record. The other gems will be
updated accordingly but in different commits. The pass through Active
Record is not completely finished yet. A follow up commit will change
the spots I haven't yet had the time to update.
/cc @fxn
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Documentation ActiveRecord Attributes API code fix
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I came across this while trying it out, with the provided code the
`MoneyType` does not save as it complains that `Fixnum` does not
define `include?`. I think the sensible thing is to check if it
already is a `Numeric`.
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The rdoc parser seems to trip on the `private def` construct.
Public methods following a method defined with `private def` are not
visible inside the module docs but are appended to the top-most module.
For example the method `ActiveRecord::QueryMethods#distinct` was listed
under `ActiveRecord#distinct`.
/cc @sgrif
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[ci skip]
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This class is only used internally. We should keep it out of public
documentation. This patch adds nodoc for
`ActiveRecord::Associations::Builder` and everything nested within.
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This error is raised in certain situations when eager loading
polymorphic associations. We even mention it in our docs. It should be
included in our API.
Conflicts:
activerecord/lib/active_record/associations.rb
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Also unify the format of code example output. Only use `# =>` if the
actual return value is described. Otherwise simply use `#`.
Conflicts:
activerecord/lib/active_record/relation/query_methods.rb
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Closes #21563.
The `name` argument of `add_references` was both used to generate the
column name `<name>_id` and as the target table for the foreign key
`name.pluralize`.
It's primary purpose is to define the column name. In cases where the
`to_table` of the foreign key is different than the column name we
should be able to specify it individually.
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kamipo/move_schema_dumping_methods_into_appropriate_files
Move the methods for schema dumping into `{mysql,postgresql}/schema_dumper.rb`
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Current master branch includes many schema dumping improvements.
It extract these features to the appropriate files.
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Allow mysql and mysql2 tests run by database user with password
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Remove deprecated pg_dump -i flag
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Current master branch includes many schema creation improvements in
MySQL. It extract these features to the appropriate file.
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Current master branch includes many schema definition improvements in
MySQL. It extract these features to the appropriate file.
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Make AR#increment! and #decrement! concurrency-safe
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With the previous implementation, the block passed to
define_singleton_method, which will live forever as the method body,
captures the parameters (args and block) in its enclosure.
For the current_scope registry, that can include an AR::Relation.
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Modify the scope method documentation
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Adds a paragraph to the documentation of the `ActiveRecord::Scoping::Named.scope` method,
explaining that the method is intended to return an ActiveRecord::Relation object to be
composable with other scopes.
In the case that in the case that `nil` or `false` are returned, the method returns
an `all` relation instead.
This unexpected behaviour is mentioned in #19249 #14256 #21465 and #21882 and wasn't
documented at all. This commit adds this documentation.
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`require 'active_support/core_ext/string/filters'` was added in b3bfa36. However, it is no longer needed from 3ae981814.
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Fix subsecond precision supported version
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