| Commit message (Collapse) | Author | Age | Files | Lines |
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I misread this test in
https://github.com/rails/rails/commit/1a693c79c32cba070256fdb7bd1990c3d07d554f
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There were a few places where I missed a `create` vs `new`
before_type_cast check, and the semantics of `reload` became wrong.
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We can skip the allocation of a full `AttributeSet` by changing the
semantics of how we structure things. Instead of comparing two separate
`AttributeSet` objects, and `Attribute` is now a singly linked list of
every change that has happened to it. Since the attribute objects are
immutable, to apply the changes we simply need to copy the head of the
list.
It's worth noting that this causes one subtle change in the behavior of
AR. When a record is saved successfully, the `before_type_cast` version
of everything will be what was sent to the database. I honestly think
these semantics make more sense, as we could have just as easily had the
DB do `RETURNING *` and updated the record with those if we had things
like timestamps implemented at the DB layer.
This brings our performance closer to 4.2, but we're still not quite
there.
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Some test cases are testing only mysql adapter. We should test mysql2
adapter also.
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The name `ActiveModel::AttributeAssignment::UnknownAttributeError` is
too implementation specific so let's move the constant directly under
the ActiveModel namespace.
Also since this constant used to be under the ActiveRecord namespace, to
make the upgrade path easier, let's avoid raising the former constant
when we deal with this error on the Active Record side.
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`ActiveModel::AttributesAssignment`
Allows to use it for any object as an includable module.
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This method can be used to see all of the fields on a model which have
been read. This can be useful during development mode to quickly find
out which fields need to be selected. For performance critical pages, if
you are not using all of the fields of a database, an easy performance
win is only selecting the fields which you need. By calling this method
at the end of a controller action, it's easy to determine which fields
need to be selected.
While writing this, I also noticed a place for an easy performance win
internally which I had been wanting to introduce. You cannot mutate a
field which you have not read. Therefore, we can skip the calculation of
in place changes if we have never read from the field. This can
significantly speed up methods like `#changed?` if any of the fields
have an expensive mutable type (like `serialize`)
```
Calculating -------------------------------------
#changed? with serialized column (before)
391.000 i/100ms
#changed? with serialized column (after)
1.514k i/100ms
-------------------------------------------------
#changed? with serialized column (before)
4.243k (± 3.7%) i/s - 21.505k
#changed? with serialized column (after)
16.789k (± 3.2%) i/s - 84.784k
```
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The types that are affected by `time_zone_aware_attributes` (which is on
by default) have been made configurable, in case this is a breaking
change for existing applications.
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While we don't want to change the form input when validations fail,
blindly using `_before_type_cast` will cause the input to display the
wrong data for any type which does additional work on database values.
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`Computer` class needs to be require
See #17217 for more details
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Message on AR::UnknownAttributeError should include the class name of a record
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This would be helpful if 2 models have an attribute that has a similar
name to the other. e.g:
before:
User.new(name: "Yuki Nishijima", projects_attributes: [name: "kaminari"])
# => ActiveRecord::UnknownAttributeError: unknown attribute: name
after:
User.new(name: "Yuki Nishijima", projects_attributes: [name: "kaminari"])
# => ActiveRecord::UnknownAttributeError: unknown attribute on User: name
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This would be helpful if 2 models have an attribute that has a similar
name to the other. e.g:
before:
User.new(name: "Yuki Nishijima", projects_attributes: [name: "kaminari"])
# => ActiveRecord::UnknownAttributeError: unknown attribute: name
after:
User.new(name: "Yuki Nishijima", projects_attributes: [name: "kaminari"])
# => ActiveRecord::UnknownAttributeError: unknown attribute on User: name
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This test has always been green because it uses "assert" and the first
argument is an truthy class/object.
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Fixed issue w/custom accessors + reserved name + inheritance
Conflicts:
activerecord/CHANGELOG.md
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Fixed an issue where custom accessor methods (such as those generated by
`enum`) with the same name as a global method are incorrectly overridden
when subclassing.
This was partially fixed in 4155431 then broken again by e5f15a8.
Fixes #16288.
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Follow up to the discussion on #16505.
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Fixed a regression introduced in 84cf156
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84cf156 (PR #15694) introduced a subtle regression. There are actually three
distinct entry points to creating an AR object – via .new (i.e. #initialize),
via #init_with (e.g. from YAML or database queries) and via .allocate.
With the patch in 84cf156, attribute methods and respond_to? will not work
correctly when objects are allocated directly, without going through either
The reason this test case didn't catch the regression was that the `Topic`
class is shared between test cases, so by the time this test case is ran the
attribute methods are very likely to be defined.
Switching to use a fresh anonymous class in the test to ensure we surface this
problem in the future.
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Making this change revealed several subtle bugs related to models with
no primary key, and anonymous classes. These have been fixed as well,
with regression tests added.
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There is a class method with the same name that is tested, but not the
instance method.
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We don't generally modify our classes at runtime like this. Let's create
the instance after the class is created. Original commit doesn't imply
that this was intentional behavior.
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The original patch that added this concept can be found
[here](https://web.archive.org/web/20090601022739/http://dev.rubyonrails.org/ticket/9767).
The current default behavior is to cache everything except serialized
columns, unless the user specified otherwise. If anyone were to specify
otherwise, many types would actually be completely broken. Still, the
method is left in place with a deprecation warning in case anyone is
actually still calling this method.
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Nearly completely implemented in terms of custom properties.
`_before_type_cast` now stores the raw serialized string consistently,
which removes the need to keep track of "state". The following is now
consistently true:
- `model.serialized == model.reload.serialized`
- A model can be dumped and loaded infinitely without changing
- A model can be saved and reloaded infinitely without changing
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`@attributes` was actually used for `_before_type_cast` and friends,
while `@attributes_cache` is the type cast version (and caching is the
wrong word there, but I'm working on removing the conditionals around
that). I opted for `@raw_attributes`, because `_before_type_cast` is
also semantically misleading. The values in said hash are in the state
given by the form builder or database, so raw seemed to be a good word.
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The `:timestamp` type for columns is unused. All database adapters treat
them as the same database type. All code in `ActiveRecord` which changes
its behavior based on the column's type acts the same in both cases.
However, when the type is passed to code that checks for the `:datetime`
type, but not `:timestamp` (such as XML serialization), the result is
unexpected behavior.
Existing schema definitions will continue to work, and the `timestamp`
type is transparently aliased to `datetime`.
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Follow up to af549a1ad6692d7e2c756750651f0e1b293f5185
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Follow-Up to https://github.com/rails/rails/pull/14348
Ensure that SQLCounter.clear_log is called after each test.
This is a step to prevent side effects when running tests. This will allow us to run them in random order.
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PR #14052 Added a regression where it was only looking for methods in one
level up, So when the method was defined in a 2+ levels up the
inheritance chain, the method was not found as defined.
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'chancancode/fix_instance_method_already_implemented'
Conflicts:
activerecord/CHANGELOG.md
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conflicting private method defined on its ancestors.
The problem is that `method_defined_within?(name, klass, superklass)`
only works correclty when `klass` and `superklass` are both `Class`es.
If both `klass` and `superklass` are both `Class`es, they share the
same inheritance chain, so if a method is defined on `klass` but not
`superklass`, this method must be introduced at some point between
`klass` and `superklass`.
This does not work when `superklass` is a `Module`. A `Module`'s
inheritance chain contains just itself. So if a method is defined on
`klass` but not on `superklass`, the method could still be defined
somewhere upstream, e.g. in `Object`.
This fix works by avoiding calling `method_defined_within?` with a
module while still fufilling the requirement (checking that the
method is defined withing `superclass` but not is not a generated
attribute method).
4d8ee288 is likely an attempted partial fix for this problem. This
unrolls that fix and properly check the `superclass` as intended.
Fixes #11569.
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This was happening when a `super` call in an overwritten attribute method
was triggering a method_missing fallback, because attribute methods
haven't been generated yet.
class Topic < ActiveRecord::Base
def title
# `super` would re-invoke this method if define_attribute_methods
# hasn't been called yet resulting in double '!' appending
super + '!'
end
end
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Raising an error when nil is passed to update_attributes.
Conflicts:
activerecord/CHANGELOG.md
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for attributes that are columns.
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base_test.rb
The method itself got extracted out from ActiveRecored::Base in commit
ceb33f84933639d3b61aac62e5e71fd087ab65ed, but the test code never did.
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