* A non-zero exit status allows subsequent shell commands to be chained
together such as: `rake db:reset test:prepare && rspec && cap deploy`
(if you're feeling brave :)
* Any exceptions raised during the `create` and `drop` tasks are caught
in order to print a "pretty" message to the user. Unfortunately doing
so prevents rake from aborting with a non-zero exit status to the shell.
* Therefore we re-raise the exceptions after the "pretty" message and
re-catch them in the task.
* From the task we explicitly exit with a non-zero status. This method
was chosen (rather than just letting rake fail from the exception) so
that the backtrace is suppressed and the output to stderr is
unchanged.
* Update activerecord CHANGELOG
The log output used to be confusing in situation where type casting has
"unexpected" effects. For example when finding records with a `String`.
BEFORE:
irb(main):002:0> Event.find("im-no-integer")
D, [2013-11-09T11:10:28.998857 #1706] DEBUG -- : Event Load (4.5ms) SELECT "events".* FROM "events" WHERE "events"."id" = $1 LIMIT 1 [["id", "im-no-integer"]]
AFTER:
irb(main):002:0> Event.find("im-no-integer")
D, [2013-11-09T11:10:28.998857 #1706] DEBUG -- : Event Load (4.5ms) SELECT "events".* FROM "events" WHERE "events"."id" = $1 LIMIT 1 [["id", 0]]
was using nullify strategy
This caused a regression in applications trying to upgrade.
Also if the user set the dependent option as destroy he expects to get
the records removed from the database.
consolidated test_schema_migrations_table_name tests
Added changelog entry
edited changelog
removed commented lines
removed reader
ensure the schema migrations table is reset at end of test
added entry to configuration guide
guides typo and changelog order
This is necessary because as of 5ac2341 `hstore` columns are always stored
as `Hash` with `String` keys. `ActiveRecord::Store` expected the attribute to
be an instance of `HashWithIndifferentAccess`, which led to the bug.
Currently they are all stored globally in the same `Hash`.
This commit forces the creation of a per-class variable if necessary.
The behavior was exposed through the following test-case:
```
1) Failure:
StoreTest#test_all_stored_attributes_are_returned [/Users/senny/Projects/rails/activerecord/test/cases/store_test.rb:151]:
--- expected
+++ actual
@@ -1 +1 @@
-[:color, :homepage, :favorite_food]
+[:resolution, :color, :homepage, :favorite_food]
```
Allows you to call #unscope on a relation with negative equality operators,
i.e. Arel::Nodes::NotIn and Arel::Nodes::NotEqual that have been generated
through the use of where.not.
Generated sub-query for Relation as array condition for `where` method
did not take in account its bind values, in result generates invalid SQL query.
Fixed by adding sub-query relation's binding values to base relation
Closes: #12586
`pluck` was updated to accept a list of columns, but the `NullRelation`
was never updated to match that signature. As a result, calling `pluck`
on a `NullRelation` results in an `ArgumentError`.
Currently `scope_chain` uses same array for building different
`scope_chain` for different associations. During processing
these arrays are sometimes mutated and because of in-place
mutation the changed `scope_chain` impacts other reflections.
Fix is to dup the value before adding to the `scope_chain`.
Fixes#3882.
Instead of executing 2 queries for fetching records filtered by array condition with Relation,
added generation of subquery to current query.
This behaviour will be consistent when passes Relation as hash condition to where
Closes: #12415
In order to build associated records for owners which has not been saved
need to get where values to use as default attributes.
But for new record owner uses `ActiveRecord::NullRelation` which
override `where_values_hash` to return empty hash stub.
`where_values_hash` is not used to invoke any sql query, but good to
build others chains (even will be never executed) like:
```ruby
post = Post.new
admin_comment = post.admin_comments.build
assert_equal 'Admin', admin_comment.author
```
Closes#11376, #11676, #11675
or even be numbers, so sorting by id doesn't make sense. Please use `sort_by`
and specify the attribute you wish to sort with. For example, change:
Post.all.to_a.sort
to:
Post.all.to_a.sort_by(&:id)
In order to remove duplication with joining arel where constraints with
`AND`, all constraints on `build_arel` are collapsed into one head node: `Arel::Nodes::And`
Closes: #11963
Deprecate the delegation of Array bang methods in ActiveRecord::Delegation
Conflicts:
activerecord/CHANGELOG.md
activerecord/test/cases/relation_test.rb
When the adapter is with prepared statement disabled and the binds array
is not empty the connection adapter will try to set the binds values and
will fail. Now we are checking if the adapter has the prepared statement
disabled.
Fixes#12023
When first or last is called with an integer on an unloaded association,
the entire collection is loaded. This differs surprisingly from the
behavior of Relation#first/last, which translate the call into a limit
query. For large collections this can make a big difference in
performance.
Change CollectionAssociation#fetch_first_or_last_using_find? to make
this kind of call delegate to Relation.
The primary means of returning results for Array bang methods is to modify
the array in-place. When you call these methods on a relation, that
array is created, modified, and then thrown away. Only the secondary
return value is exposed to the caller.
Removing this delegation is a straight-forward way to reduce user error
by forcing callers to first explicitly call #to_a in order to expose
the array to be acted on by the bang method.
This requires adding a `skip_callbacks` argument to `#add_to_target`
so that we don't call the callbacks multiple times in this case,
which is functionally an application of existing association data,
rather than an addition of a new record to the association.
Issue #1: :before_add callback is called when nested attributes assignment assigns to existing record if the association is not yet loaded
Issue #2: Nested Attributes assignment does not affect the record in the association target when callback triggers loading of the association
If the `db/` directory is not present on a remote machine it will blow up in unexpected ways with error messages that do not indicate there is a missing directory:
```
SQLite3::CantOpenException: unable to open database file
```
This PR checks to see if a directory exists for the sqlite3 file and if not creates it for you.
This PR is an alternative to #11692 as suggested by @josevalim
order on the old ones
The previous behavior added a major backward incompatibility since it
impossible to have a upgrade path without major changes on the
application code.
We are taking the most conservative path to be consistent with the idea
of having a smoother upgrade on Rails 4.
We are reverting the behavior for what was in Rails 3.x and,
if needed, we will implement a new API to prepend the order clauses in
Rails 4.1.
This adds the ability for rails apps or gems to have granular control
over how a domain object is converted to sql. One simple use case would
be to add support for Regexp. Another simple case would be something
like the following:
class DateRange < Struct.new(:start, :end)
def include?(date)
(start..end).cover?(date)
end
end
class DateRangePredicate
def call(attribute, range)
attribute.in(range.start..range.end)
end
end
ActiveRecord::PredicateBuilder.register_handler(DateRange,
DateRangePredicate.new)
More complex cases might include taking a currency object and converting
it from EUR to USD before performing the query.
By moving the existing handlers to this format, we were also able to
nicely refactor a rather nasty method in PredicateBuilder.
Some adapters require column information to do their job properly.
By enforcing the provision of the column for this internal method
we ensure that those using adapters that require column information
will always get the proper behavior.
This includes fixing typos in changelog, removing a deprecated
mocha/setup test require, and preferring the `column_for_attribute`
accessor over direct access to the columns_hash in the new code.
When calling quote_value the underlying connection sometimes requires
more information about the column to properly return the correct quoted
value.
I ran into this issue when using optimistic locking in JRuby and the
activerecord-jdbcmssql-adapter. In SQLSever 2000, we aren't allowed to
insert a integer into a NVARCHAR column type so we need to format it as
N'3' if we want to insert into the NVARCHAR type. Unfortuantely, without
the column type being passed the connection adapter cannot properly return
the correct quote value because it doesn't know to return N'3' or '3'.
This patch is fairly straight forward where it just passes in the column
type into the quote_value, as it already has the ability to take in the column,
so it can properly handle at the connection level.
I've added the tests required to make sure that the quote_value method
is being passed the column type so that the underlying connection can
determine how to quote the value.
Fixes#11497
As `ActiveRecord::ConnectionAdapters::ConnectionManagement` middleware does not rescue from Exception (but only from StandardError),
the Connection Pool quickly runs out of connections when multiple erroneous Requests come in right after each other.
Recueing from all exceptions and not just StandardError, fixes this behaviour.
Using the mysql2 adapter, boolean values were sometimes being incorrectly cast
to 't' or 'f'. This changes the cast to match the mysql adapter behavior, ie 1 and 0.
`rollback_active_record_state!` tries to restore model state on `Exception`
by invoking `restore_transaction_record_state` it decrement deep level by `1`.
After restoring it ensure that states to be cleared
and level decremented by invoking `clear_transaction_record_state`,
which cause the bug: because state already reduced in `restore_transaction_record_state`.
Removed double derement of transaction level
and removed duplicated code which clear transaction state for top level.
`disable_implicit_join_references=` was only deprecated on `master`,
not with rails 4.0. We can remove it after 4.1
This reverts commit 3c719ead414ffd29e71efce185698af979052abb, reversing
changes made to d5c3bf9722abd5733a769c8d789de3f74dbfb92d.
Method `delete_all` should not be invoking callbacks and this
feature was deprecated in Rails 4.0. This is being removed.
`delete_all` will continue to honor the `:dependent` option. However
if `:dependent` value is `:destroy` then the default deletion
strategy for that collection will be applied.
User can also force a deletion strategy by passing parameter to
`delete_all`. For example you can do `@post.comments.delete_all(:nullify)`
For example:
class Post < ActiveRecord::Base
default_scope -> { where published: true }
end
class Comment
belongs_to :post
end
When calling `Comment.join(:post)`, we expect to receive only
comments on published posts, since that is the default scope for
posts.
Before this change, the default scope from `Post` was not applied,
so we'd get comments on unpublished posts.
fixes#10669
While joining_values special treatment is given to string values.
By flattening the array it ensures that string values are detected
as strings and not arrays.
currently `post.comments.find(Comment.first.id)` would load all
comments for the given post to set the inverse association.
This has a huge performance penalty. Because if post has 100k
records and all these 100k records would be loaded in memory
even though the comment id was supplied.
Fix is to use in-memory records only if loaded? is true. Otherwise
load the records using full sql.
Fixes#10509
This reverts commit 2b817a5e89ac0e7aeb894a40ae7151a0cf3cef16, reversing
changes made to 353a398bee68c5ea99d76ac7601de0a5fef6f4a5.
Conflicts:
activerecord/CHANGELOG.md
Reason: the build broke
If I have a query that produces sql
`WHERE "users"."name" = 'a b'` then in the log all the
whitespace is being squeezed. So the sql that is printed in the
log is `WHERE "users"."name" = 'a b'`.
This can be confusing. This commit fixes it by ensuring that
whitespace is not squeezed.
fixes#10982
currently `post.comments.find(Comment.first.id)` would load all
comments for the given post to set the inverse association.
This has a huge performance penalty. Because if post has 100k
records and all these 100k records would be loaded in memory
even though the comment id was supplied.
Fix is to use in-memory records only if loaded? is true. Otherwise
load the records using full sql.
Fixes#10509
As you can also configure your database connection using `ENV["DATABASE_URL"]`,
the fixture setup can't reply on the `.configurations` Hash.
As the fixtures are only loaded when ActiveRecord is actually used
(`rails/test_help.rb`) it should be safe to drop the check for an existing configuration.
For example, you need to change this:
class Author < ActiveRecord::Base
has_many :posts
has_many :taggings, :through => :posts
end
class Post < ActiveRecord::Base
has_one :tagging
has_many :taggings
end
class Tagging < ActiveRecord::Base
end
To this:
class Author < ActiveRecord::Base
has_many :posts
has_many :taggings, :through => :posts, :source => :tagging
end
class Post < ActiveRecord::Base
has_one :tagging
has_many :taggings
end
class Tagging < ActiveRecord::Base
end
When then PostgreSQL visitor was [added](6b7fdf3bf3)
`add_column` was no longer receiving the column options directly. This
caused the options to be lost along the way.
When removing records from a `has_many` association it used
the `primary_key` defined on the association.
Our test suite didn't fail because on all occurences of `:primary_key`,
the specified column was available in both tables. This prevented the
code from raising an exception but it still behaved badly.
I added a test-case to prevent regressions that failed with:
```
1) Error:
HasManyAssociationsTest#test_has_many_assignment_with_custom_primary_key:
ActiveRecord::StatementInvalid: SQLite3::SQLException: no such column: essays.first_name: UPDATE "essays" SET "writer_id" = NULL WHERE "essays"."writer_id" = ? AND "essays"."first_name" IS NULL
```
Call assume_migrated_upto_version on connection to prevent it from first
being picked up in method_missing. In the base class, Migration,
method_missing expects the argument to be a table name, and calls
proper_table_name on the arguments before sending to connection. If
table_name_prefix or table_name_suffix is used, the schema version changes
to prefix_version_suffix, breaking `rake test:prepare`.
Fixes#10411.
counter cache
At present, calling destroy multiple times on the same record results
in the belongs_to counter cache being decremented multiple times. With
this change the record is checked for whether it is already destroyed
prior to decrementing the counter cache.
fixes#10419
Following code should raise IrreversibleMigration. But the code was
failing since options is an array and not a hash.
def change
change_table :users do |t|
t.remove_index [:name, :email]
end
end
Fix was to check if the options is a Hash before operating on it.
For one-to-one nested associations, if you build the new (in-memory)
child object yourself before assignment, then the NestedAttributes
module will not overwrite it, e.g.:
class Member < ActiveRecord::Base
has_one :avatar
accepts_nested_attributes_for :avatar
def avatar
super || build_avatar(width: 200)
end
end
member = Member.new
member.avatar_attributes = {icon: 'sad'}
member.avatar.width # => 200
fixes bug introduced by #3329
These are the conditions necessary to reproduce the bug:
- For an association, autosave => true.
- An association record is being destroyed
- A new association record is being created.
- There is a unique index one of the association's fields.
- The record being created has the same value as the record being
destroyed on the indexed field.
Before, the deletion of records was postponed until after all
insertions/saves. Therefore the new record with the identical value in
the indexed field caused a non-unique value error to be thrown at the database
level.
With this fix, the deletions happen first, before the insertions/saves.
Therefore the record with the duplicate value is gone from the database
before the new record is created, thereby avoiding the non-uniuqe value
error.
When using symbol keys, ActiveRecord will now translate aliased attribute names to the actual column name used in the database:
With the model
class Topic
alias_attribute :heading, :title
end
The call
Topic.where(heading: 'The First Topic')
should yield the same result as
Topic.where(title: 'The First Topic')
This also applies to ActiveRecord::Relation::Calculations calls such as `Model.sum(:aliased)` and `Model.pluck(:aliased)`.
This will not work with SQL fragment strings like `Model.sum('DISTINCT aliased')`.
Github #7839
*Godfrey Chan*
activerecord/lib/active_record/associations.rb states:
# [association=(associate)]
# Assigns the associate object, extracts the primary key, sets it as the foreign key,
# and saves the associate object.
Since commit 42dd5d9f2976677a4bf22347f2dde1a8135dfbb4 to fix#7191, this
is no longer the case if the associate has changed, but is the same
object. For example:
# Pirate has_one :ship
pirate = Pirate.create!(catchphrase: "A Pirate")
ship = pirate.build_ship(name: 'old name')
ship.save!
ship.name = 'new name'
pirate.ship = ship
That last line should trigger a save. Although we are not changing the
association, the associate (ship) has changed.
