Calling a literal ActiveRecord::Base.new raises NoMethodError,
since it ends up calling Class.abstract_class? which does not exist.
Similarly, instantiating an actual abstract class hits the database,
when conventionally it should immediately throw NotImplementedError.
ActiveRecord::Base can't be made abstract without breaking many,
many things, so check for it separately.
Closes#7364.
Collection associations behave similar to Arrays. However there is no
way to prepend records. And to append one should use `<<`. Before this
patch `#append` and `#prepend` did not add the record to the loaded
association.
`#append` now behaves like `<<` and `#prepend` is not defined.
In an AR model a timestamptz attribute would return a ruby string and AR
tests did not check for any type casting. Previous tests would pass
only because an assert_equal was being used on a Time.utc object, which
will parse the right side of the eq to a valid Time instance for
comparision.
switch to test instance of Time instead of ActiveSupport::TimeWithZone
Sometimes you want to create a table without an associated model and
test, which is also not a join table. With this commit, you can now
do that.
Example:
rails g migration create_posts title:string
or
rails g migration CreatePosts title:string
This commit also moves the template the model generator uses for the
migration to the migration templates folder, as it seems a more
sensible place for it now that it is shared code.
Closes#9480.
We use `TableDefinition` for `#create_table` and `Table` for `#change_table`.
The PostgreSQL sepcifc types were only defined on `TableDefinition` so I
also added them to `Table`.
Fix calculation of db_runtime property in
ActiveRecord::Railties::ControllerRuntime#cleanup_view_runtime.
Previously, after raising ActionView::MissingTemplate, db_runtime was
not populated.
Closes#9218, Fixes#9215.
Conflicts:
activerecord/CHANGELOG.md
If the parent of a `belongs_to` record fails to be saved due to
validation errors, `touch` will be called on a new record, which causes
an exception (see https://github.com/rails/rails/pull/9320).
Example:
class Owner < ActiveRecord::Base
validates_presence_of :name
end
class Pet < ActiveRecord::Base
belongs_to :owner, touch: true
end
pet = Pet.new(owner: Owner.new)
# Before, this line would raise ActiveRecord::ActiveRecordError
# "can not touch on a new record object"
pet.save
Fixes#9275.
When `#order` is called with a Symbol this patch will prepend the quoted_table_name.
Before the postgresql adapter failed to build queries containg a join and an order
with a symbol.
This expansion happens for all adapters.
closes#8663.
When preloading a hmt association there two possible scenarios:
1.) preload with 2 queries: first hm association, then hmt with id IN ()
2.) preload with join: hmt association is loaded with a join on the hm association
The bug was happening in scenario 1.) with a normal order clause on the hmt association.
The ordering was also applied when loading the hm association, which resulted in the error.
This patch only applies the ordering the the hm-relation if we are performing a join (2).
Otherwise the order will only appear in the second query (1).
We discussed that the auto explain feature is rarely used.
This PR removes only the automatic explain. You can still display
the explain output for any given relation using `ActiveRecord::Relation#explain`.
As a side-effect this should also fix the connection problem during
asset compilation (#9385). The auto explain initializer in the `ActiveRecord::Railtie`
forced a connection.
When a table or a column is renamed related indexes kept their name. This will lead to confusing names. This patch renames related indexes when a column or a table is renamed. Only indexes with names generated by rails will be renamed. Indexes with custom names will not be renamed.
Some adapter (SQLite3) need to perform renaming operations to support
the rails DDL. These rename prefixes operate with prefixes. When an
index name already uses up the full space provieded by
`index_name_length` these internal operations will fail. This patch
introduces `allowed_index_name_length` which respects the amount of
characters used for internal operations. It will always be <=
`index_name_length` and every adapter can define how many characters
need to be reserved.
Allow store accessors to be overrided like other attribute methods,
e.g.:
class User < ActiveRecord::Base
store :settings, accessors: [ :color, :homepage ], coder: JSON
def color
super || 'red'
end
end
