| Commit message (Collapse) | Author | Age | Files | Lines |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
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
```
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
In the case of serialized columns, we would expect the unserialized
value as input, not the serialized value. The original issue which made
this distinction, #14163, introduced a bug. If you passed serialized
input to the method, it would double serialize when it was sent to the
database. You would see the wrong input upon reloading, or get an error
if you had a specific type on the serialized column.
To put it another way, `update_column` is a special case of
`update_all`, which would take `['a']` and not `['a'].to_yaml`, but you
would not pass data from `params` to it.
Fixes #18037
|
|
|
|
|
|
|
| |
We added a comparison to "id", and call to `self.class.primary_key` a
*lot*. We also have performance hits from `&block` all over the place.
We skip the check in a new method, in order to avoid breaking the
behavior of `read_attribute`
|
|
|
|
|
|
|
|
|
|
| |
We don't know which attributes will or won't be used, and we don't want
to create massive bottlenecks at instantiation. Rather than doing *any*
iteration over types and values, we can lazily instantiate the object.
The lazy attribute hash should not fully implement hash, or subclass
hash at any point in the future. It is not meant to be a replacement,
but instead implement its own interface which happens to overlap.
|
|
|
|
| |
https://github.com/rails/rails/pull/15868/files#r14135210
|
|\
| |
| |
| |
| |
| |
| | |
Move pk initialization logic onto `AttributeSet`
Conflicts:
activerecord/lib/active_record/attribute_set.rb
|
| |
| |
| |
| | |
Better encapsulates its internals from `ActiveRecord::Base`.
|
|/ |
|
| |
|
|
|
|
|
| |
This allows using polymorphism for the uninitialized attributes raising
an exception behavior.
|
|
|
|
|
|
|
|
| |
This will make it less painful to add additional properties, which
should persist across writes, such as `name`.
Conflicts:
activerecord/lib/active_record/attribute_set.rb
|
|\
| |
| |
| |
| |
| |
| |
| | |
Move behavior of `read_attribute` to `AttributeSet`
Conflicts:
activerecord/lib/active_record/attribute_set.rb
activerecord/test/cases/attribute_set_test.rb
|
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| | |
Moved `Builder` to its own file, as it started looking very weird once I
added private methods to the `AttributeSet` class and the `Builder`
class started to grow.
Would like to refactor `fetch_value` to change to
```ruby
self[name].value(&block)
```
But that requires the attributes to know about their name, which they
currently do not.
|
|\ \
| |/
|/|
| |
| |
| |
| |
| | |
Move `attributes_before_type_cast` to `AttributeSet`
Conflicts:
activerecord/lib/active_record/attribute_set.rb
activerecord/test/cases/attribute_set_test.rb
|
| | |
|
| |
| |
| |
| |
| |
| |
| |
| |
| |
| | |
Adding `# :nodoc:` to the parent `class` / `module` is not going
to ignore nested classes or modules.
There is a modifier `# :nodoc: all` but sadly the containing class
or module will continue to be in the docs.
/cc @sgrif
|
| |
| |
| |
| |
| |
| | |
`reload` is meant to put a record in the same state it would be if you
were to do `Post.find(post.id)`. This means we should fully replace the
attributes hash.
|
|\ \
| | |
| | | |
Return a null object from `AttributeSet#[]`
|
| |/ |
|
|/ |
|
|
Mostly delegation to start, but we can start moving a lot of behavior in
bulk to this object.
|