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scope conditions
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#accepts_nested_attributes_for
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associations with the same foreign key.
This closes #5200.
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Method compilation provides better performance and I think the code
comes out cleaner as well.
A knock on effect is that methods that get redefined produce warnings. I
think this is a good thing. I had to deal with a bunch of warnings
coming from our tests, though.
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It's not really a good idea to have this as a global config option. We
should allow people to specify the behaviour per association.
There will now be two new values:
* :dependent => :restrict_with_exception implements the current
behaviour of :restrict. :restrict itself is deprecated in favour of
:restrict_with_exception.
* :dependent => :restrict_with_error implements the new behaviour - it
adds an error to the owner if there are dependent records present
See #4727 for the original discussion of this.
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This reverts commit 3803fcce26b837c0117f7d278b83c366dc4ed370.
Conflicts:
activerecord/CHANGELOG.md
It will be deprecated only in 4.0, and removed properly in 4.1.
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This reverts commit 14fc8b34521f8354a17e50cd11fa3f809e423592.
Reason: we need to discuss a better path from this removal.
Conflicts:
activerecord/lib/active_record/reflection.rb
activerecord/test/cases/base_test.rb
activerecord/test/models/developer.rb
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It doesn't serve much purpose now that ActiveRecord::Base.all returns a
Relation.
The code is moved to active_record_deprecated_finders.
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interpolation is no longer a thing separate from "normal" assoc
conditions.
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now everything is converted to the new style, this is not needed
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Since composed_of was removed in 051747449e7afc817c599e4135bc629d4de064eb,
these tests were working "by mistake", due to the matching "address"
string in the error message, but with a different error message than the
expected multiparameter assignment error.
Since "address" is not an attribute from Customer anymore, the error was
"undefined method klass for nil", where nil was supposed to be the
column object.
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Dynamic finders for aliased attributes
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previously dynamic finders only worked in combination with the actual
column name and not its alias defined with #alias_attribute
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ActiveRecord json/xml serialization should use as base
serializable_hash, provided by ActiveModel. Add some more coverage
around options :only and :except for both json and xml serialization.
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Improve the derivation of HABTM join table name to take account of nesting.
It now takes the table names of the two models, sorts them lexically and
then joins them, stripping any common prefix from the second table name.
Some examples:
Top level models
(Category <=> Product)
Old: categories_products
New: categories_products
Top level models with a global table_name_prefix
(Category <=> Product)
Old: site_categories_products
New: site_categories_products
Nested models in a module without a table_name_prefix method
(Admin::Category <=> Admin::Product)
Old: categories_products
New: categories_products
Nested models in a module with a table_name_prefix method
(Admin::Category <=> Admin::Product)
Old: categories_products
New: admin_categories_products
Nested models in a parent model
(Catalog::Category <=> Catalog::Product)
Old: categories_products
New: catalog_categories_products
Nested models in different parent models
(Catalog::Category <=> Content::Page)
Old: categories_pages
New: catalog_categories_content_pages
Also as part of this commit the validity checks for HABTM assocations have
been moved to ActiveRecord::Reflection One side effect of this is to move when
the exceptions are raised from the point of declaration to when the association
is built. This is consistant with other association validity checks.
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This feature adds a lot of complication to ActiveRecord for dubious
value. Let's talk about what it does currently:
class Customer < ActiveRecord::Base
composed_of :balance, :class_name => "Money", :mapping => %w(balance amount)
end
Instead, you can do something like this:
def balance
@balance ||= Money.new(value, currency)
end
def balance=(balance)
self[:value] = balance.value
self[:currency] = balance.currency
@balance = balance
end
Since that's fairly easy code to write, and doesn't need anything
extra from the framework, if you use composed_of today, you'll
have to add accessors/mutators like that.
Closes #1436
Closes #2084
Closes #3807
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There are two possible scenarios where the @mass_assignment_options
instance variable can become corrupted:
1. If the assign_attributes doesn't complete correctly, then
subsequent calls to a nested attribute assignment method will use
whatever options were passed to the previous assign_attributes call.
2. With nested assign_attributes calls, the inner call will overwrite
the current options. This will only affect nested attributes as the
attribute hash is sanitized before any methods are called.
To fix this we save the current options in a local variable and then
restore these options in an ensure block.
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Only constantize class_name once.
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allow the :converter Proc form composed_of to return nil
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This makes it possible to filter invalid input values before they are passed
into the value-object (like empty strings). This behaviour is only relevant
if the :allow_nil options is set to true. Otherwise you will get
the resulting NoMethodError.
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used out of the box.
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Change CollectionProxy#method_missing to use scoped.public_send, to
avoid a problem described in issue #2508 when trying to use class
methods with names like "open", that clash with private kernel methods.
Also changed the dynamic matcher instantiator to send straight to
scoped, to avoid another roundtrip to method_missing.
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things
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(as described in #5667)
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Fix deleting from a HABTM join table upon destroying an object of a model with optimistic locking enabled.
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Don't use this:
scope :red, where(color: 'red')
default_scope where(color: 'red')
Use this:
scope :red, -> { where(color: 'red') }
default_scope { where(color: 'red') }
The former has numerous issues. It is a common newbie gotcha to do
the following:
scope :recent, where(published_at: Time.now - 2.weeks)
Or a more subtle variant:
scope :recent, -> { where(published_at: Time.now - 2.weeks) }
scope :recent_red, recent.where(color: 'red')
Eager scopes are also very complex to implement within Active
Record, and there are still bugs. For example, the following does
not do what you expect:
scope :remove_conditions, except(:where)
where(...).remove_conditions # => still has conditions
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:strict
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If a model belongs_to two associations with the same class, then reset_counters
will reset the wrong counter cache.
Finding the right reflection should use the foreign_key instead, which should
be unique.
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See the CHANGELOG for details.
Fixes #950.
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This reverts commit c99d507fccca2e9e4d12e49b4387e007c5481ae9.
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Test using fixtures with random names and model names, that is not following naming conventions but using set_fixture_class instead.
It is expected that the table name be defined in the model, but this is not explicitly tested here. This will need to be fixed.
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