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-rw-r--r--activerecord/lib/active_record/associations.rb31
-rw-r--r--activerecord/lib/active_record/associations/association_scope.rb93
-rw-r--r--activerecord/lib/active_record/associations/collection_association.rb2
-rw-r--r--activerecord/lib/active_record/associations/collection_proxy.rb8
-rw-r--r--activerecord/lib/active_record/associations/has_many_through_association.rb12
-rw-r--r--activerecord/lib/active_record/associations/join_dependency/join_association.rb2
-rw-r--r--activerecord/lib/active_record/associations/preloader.rb55
-rw-r--r--activerecord/lib/active_record/associations/singular_association.rb2
-rw-r--r--activerecord/lib/active_record/attribute_methods.rb14
-rw-r--r--activerecord/lib/active_record/attribute_methods/dirty.rb29
-rw-r--r--activerecord/lib/active_record/attribute_methods/query.rb2
-rw-r--r--activerecord/lib/active_record/attribute_methods/read.rb4
-rw-r--r--activerecord/lib/active_record/attribute_methods/serialization.rb7
-rw-r--r--activerecord/lib/active_record/autosave_association.rb2
-rw-r--r--activerecord/lib/active_record/connection_adapters/abstract/schema_creation.rb2
-rw-r--r--activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb13
-rw-r--r--activerecord/lib/active_record/connection_adapters/abstract/schema_dumper.rb12
-rw-r--r--activerecord/lib/active_record/connection_adapters/abstract/transaction.rb14
-rw-r--r--activerecord/lib/active_record/connection_adapters/abstract_adapter.rb8
-rw-r--r--activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb34
-rw-r--r--activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb2
-rw-r--r--activerecord/lib/active_record/connection_adapters/mysql_adapter.rb2
-rw-r--r--activerecord/lib/active_record/connection_adapters/postgresql/oid/range.rb8
-rw-r--r--activerecord/lib/active_record/connection_adapters/postgresql/oid/uuid.rb2
-rw-r--r--activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb8
-rw-r--r--activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb7
-rw-r--r--activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb11
-rw-r--r--activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb11
-rw-r--r--activerecord/lib/active_record/core.rb9
-rw-r--r--activerecord/lib/active_record/fixtures.rb8
-rw-r--r--activerecord/lib/active_record/gem_version.rb4
-rw-r--r--activerecord/lib/active_record/reflection.rb36
-rw-r--r--activerecord/lib/active_record/relation/finder_methods.rb3
-rw-r--r--activerecord/lib/active_record/relation/predicate_builder/array_handler.rb16
-rw-r--r--activerecord/lib/active_record/relation/query_methods.rb20
-rw-r--r--activerecord/lib/active_record/schema_dumper.rb46
-rw-r--r--activerecord/lib/active_record/tasks/database_tasks.rb14
-rw-r--r--activerecord/lib/active_record/transactions.rb18
-rw-r--r--activerecord/lib/active_record/type/binary.rb10
-rw-r--r--activerecord/lib/active_record/type/serialized.rb5
40 files changed, 342 insertions, 244 deletions
diff --git a/activerecord/lib/active_record/associations.rb b/activerecord/lib/active_record/associations.rb
index 4ec1c8d545..18da28d480 100644
--- a/activerecord/lib/active_record/associations.rb
+++ b/activerecord/lib/active_record/associations.rb
@@ -1146,6 +1146,20 @@ module ActiveRecord
# has_many :employees, -> { joins(:address) }
# has_many :posts, ->(post) { where("max_post_length > ?", post.length) }
#
+ # === Extensions
+ #
+ # The +extension+ argument allows you to pass a block into a has_many
+ # association. This is useful for adding new finders, creators and other
+ # factory-type methods to be used as part of the association.
+ #
+ # Extension examples:
+ # has_many :employees do
+ # def find_or_create_by_name(name)
+ # first_name, last_name = name.split(" ", 2)
+ # find_or_create_by(first_name: first_name, last_name: last_name)
+ # end
+ # end
+ #
# === Options
# [:class_name]
# Specify the class name of the association. Use it only if that name can't be inferred
@@ -1277,7 +1291,7 @@ module ActiveRecord
# when you access the associated object.
#
# Scope examples:
- # has_one :auther, -> { where(comment_id: 1) }
+ # has_one :author, -> { where(comment_id: 1) }
# has_one :employer, -> { joins(:company) }
# has_one :dob, ->(dob) { where("Date.new(2000, 01, 01) > ?", dob) }
#
@@ -1590,6 +1604,21 @@ module ActiveRecord
# where("default_category = ?", category.name)
# }
#
+ # === Extensions
+ #
+ # The +extension+ argument allows you to pass a block into a
+ # has_and_belongs_to_many association. This is useful for adding new
+ # finders, creators and other factory-type methods to be used as part of
+ # the association.
+ #
+ # Extension examples:
+ # has_and_belongs_to_many :contractors do
+ # def find_or_create_by_name(name)
+ # first_name, last_name = name.split(" ", 2)
+ # find_or_create_by(first_name: first_name, last_name: last_name)
+ # end
+ # end
+ #
# === Options
#
# [:class_name]
diff --git a/activerecord/lib/active_record/associations/association_scope.rb b/activerecord/lib/active_record/associations/association_scope.rb
index 4c47af8cb0..b965230e60 100644
--- a/activerecord/lib/active_record/associations/association_scope.rb
+++ b/activerecord/lib/active_record/associations/association_scope.rb
@@ -45,20 +45,20 @@ module ActiveRecord
end
def self.get_bind_values(owner, chain)
- bvs = []
- chain.each_with_index do |reflection, i|
- if reflection == chain.last
- bvs << reflection.join_id_for(owner)
- if reflection.type
- bvs << owner.class.base_class.name
- end
- else
- if reflection.type
- bvs << chain[i + 1].klass.base_class.name
- end
+ binds = []
+ last_reflection = chain.last
+
+ binds << last_reflection.join_id_for(owner)
+ if last_reflection.type
+ binds << owner.class.base_class.name
+ end
+
+ chain.each_cons(2).each do |reflection, next_reflection|
+ if reflection.type
+ binds << next_reflection.klass.base_class.name
end
end
- bvs
+ binds
end
private
@@ -96,38 +96,55 @@ module ActiveRecord
bind_value scope, column, value, tracker
end
+ def last_chain_scope(scope, table, reflection, owner, tracker, assoc_klass)
+ join_keys = reflection.join_keys(assoc_klass)
+ key = join_keys.key
+ foreign_key = join_keys.foreign_key
+
+ bind_val = bind scope, table.table_name, key.to_s, owner[foreign_key], tracker
+ scope = scope.where(table[key].eq(bind_val))
+
+ if reflection.type
+ value = owner.class.base_class.name
+ bind_val = bind scope, table.table_name, reflection.type, value, tracker
+ scope = scope.where(table[reflection.type].eq(bind_val))
+ else
+ scope
+ end
+ end
+
+ def next_chain_scope(scope, table, reflection, tracker, assoc_klass, foreign_table, next_reflection)
+ join_keys = reflection.join_keys(assoc_klass)
+ key = join_keys.key
+ foreign_key = join_keys.foreign_key
+
+ constraint = table[key].eq(foreign_table[foreign_key])
+
+ if reflection.type
+ value = next_reflection.klass.base_class.name
+ bind_val = bind scope, table.table_name, reflection.type, value, tracker
+ scope = scope.where(table[reflection.type].eq(bind_val))
+ end
+
+ scope = scope.joins(join(foreign_table, constraint))
+ end
+
def add_constraints(scope, owner, assoc_klass, refl, tracker)
chain = refl.chain
scope_chain = refl.scope_chain
tables = construct_tables(chain, assoc_klass, refl, tracker)
+ owner_reflection = chain.last
+ table = tables.last
+ scope = last_chain_scope(scope, table, owner_reflection, owner, tracker, assoc_klass)
+
chain.each_with_index do |reflection, i|
table, foreign_table = tables.shift, tables.first
- join_keys = reflection.join_keys(assoc_klass)
- key = join_keys.key
- foreign_key = join_keys.foreign_key
-
- if reflection == chain.last
- bind_val = bind scope, table.table_name, key.to_s, owner[foreign_key], tracker
- scope = scope.where(table[key].eq(bind_val))
-
- if reflection.type
- value = owner.class.base_class.name
- bind_val = bind scope, table.table_name, reflection.type, value, tracker
- scope = scope.where(table[reflection.type].eq(bind_val))
- end
- else
- constraint = table[key].eq(foreign_table[foreign_key])
-
- if reflection.type
- value = chain[i + 1].klass.base_class.name
- bind_val = bind scope, table.table_name, reflection.type, value, tracker
- scope = scope.where(table[reflection.type].eq(bind_val))
- end
-
- scope = scope.joins(join(foreign_table, constraint))
+ unless reflection == chain.last
+ next_reflection = chain[i + 1]
+ scope = next_chain_scope(scope, table, reflection, tracker, assoc_klass, foreign_table, next_reflection)
end
is_first_chain = i == 0
@@ -171,11 +188,7 @@ module ActiveRecord
end
def eval_scope(klass, scope, owner)
- if scope.is_a?(Relation)
- scope
- else
- klass.unscoped.instance_exec(owner, &scope)
- end
+ klass.unscoped.instance_exec(owner, &scope)
end
end
end
diff --git a/activerecord/lib/active_record/associations/collection_association.rb b/activerecord/lib/active_record/associations/collection_association.rb
index 065a2cff01..1836ff0910 100644
--- a/activerecord/lib/active_record/associations/collection_association.rb
+++ b/activerecord/lib/active_record/associations/collection_association.rb
@@ -407,7 +407,7 @@ module ActiveRecord
private
def get_records
- return scope.to_a if reflection.scope_chain.any?(&:any?)
+ return scope.to_a if reflection.scope_chain.any?(&:any?) || scope.eager_loading?
conn = klass.connection
sc = reflection.association_scope_cache(conn, owner) do
diff --git a/activerecord/lib/active_record/associations/collection_proxy.rb b/activerecord/lib/active_record/associations/collection_proxy.rb
index 84c8cfe72b..8c7b0b4be9 100644
--- a/activerecord/lib/active_record/associations/collection_proxy.rb
+++ b/activerecord/lib/active_record/associations/collection_proxy.rb
@@ -783,7 +783,7 @@ module ActiveRecord
# person.pets.count # => 0
# person.pets.any? # => true
#
- # You can also pass a block to define criteria. The behavior
+ # You can also pass a +block+ to define criteria. The behavior
# is the same, it returns true if the collection based on the
# criteria is not empty.
#
@@ -817,7 +817,7 @@ module ActiveRecord
# person.pets.count # => 2
# person.pets.many? # => true
#
- # You can also pass a block to define criteria. The
+ # You can also pass a +block+ to define criteria. The
# behavior is the same, it returns true if the collection
# based on the criteria has more than one record.
#
@@ -841,7 +841,7 @@ module ActiveRecord
@association.many?(&block)
end
- # Returns +true+ if the given object is present in the collection.
+ # Returns +true+ if the given +record+ is present in the collection.
#
# class Person < ActiveRecord::Base
# has_many :pets
@@ -879,7 +879,7 @@ module ActiveRecord
# Equivalent to <tt>Array#==</tt>. Returns +true+ if the two arrays
# contain the same number of elements and if each element is equal
- # to the corresponding element in the other array, otherwise returns
+ # to the corresponding element in the +other+ array, otherwise returns
# +false+.
#
# class Person < ActiveRecord::Base
diff --git a/activerecord/lib/active_record/associations/has_many_through_association.rb b/activerecord/lib/active_record/associations/has_many_through_association.rb
index 44c4436e95..0968b0068e 100644
--- a/activerecord/lib/active_record/associations/has_many_through_association.rb
+++ b/activerecord/lib/active_record/associations/has_many_through_association.rb
@@ -63,12 +63,12 @@ module ActiveRecord
save_through_record(record)
if has_cached_counter? && !through_reflection_updates_counter_cache?
- ActiveSupport::Deprecation.warn(<<-MESSAGE.strip_heredoc)
- Automatic updating of counter caches on through associations has been
- deprecated, and will be removed in Rails 5.0. Instead, please set the
- appropriate counter_cache options on the has_many and belongs_to for
- your associations to #{through_reflection.name}.
- MESSAGE
+ ActiveSupport::Deprecation.warn \
+ "Automatic updating of counter caches on through associations has been " \
+ "deprecated, and will be removed in Rails 5.0. Instead, please set the " \
+ "appropriate counter_cache options on the has_many and belongs_to for " \
+ "your associations to #{through_reflection.name}."
+
update_counter_in_database(1)
end
record
diff --git a/activerecord/lib/active_record/associations/join_dependency/join_association.rb b/activerecord/lib/active_record/associations/join_dependency/join_association.rb
index c3bbdccad8..e7d3c9ba40 100644
--- a/activerecord/lib/active_record/associations/join_dependency/join_association.rb
+++ b/activerecord/lib/active_record/associations/join_dependency/join_association.rb
@@ -65,7 +65,7 @@ module ActiveRecord
if reflection.type
value = foreign_klass.base_class.name
- column = klass.columns_hash[column.to_s]
+ column = klass.columns_hash[reflection.type.to_s]
substitute = klass.connection.substitute_at(column, bind_values.length)
bind_values.push [column, value]
diff --git a/activerecord/lib/active_record/associations/preloader.rb b/activerecord/lib/active_record/associations/preloader.rb
index 7519fec10a..46bccbf15a 100644
--- a/activerecord/lib/active_record/associations/preloader.rb
+++ b/activerecord/lib/active_record/associations/preloader.rb
@@ -2,33 +2,42 @@ module ActiveRecord
module Associations
# Implements the details of eager loading of Active Record associations.
#
- # Note that 'eager loading' and 'preloading' are actually the same thing.
- # However, there are two different eager loading strategies.
+ # Suppose that you have the following two Active Record models:
#
- # The first one is by using table joins. This was only strategy available
- # prior to Rails 2.1. Suppose that you have an Author model with columns
- # 'name' and 'age', and a Book model with columns 'name' and 'sales'. Using
- # this strategy, Active Record would try to retrieve all data for an author
- # and all of its books via a single query:
+ # class Author < ActiveRecord::Base
+ # # columns: name, age
+ # has_many :books
+ # end
#
- # SELECT * FROM authors
- # LEFT OUTER JOIN books ON authors.id = books.author_id
- # WHERE authors.name = 'Ken Akamatsu'
+ # class Book < ActiveRecord::Base
+ # # columns: title, sales
+ # end
#
- # However, this could result in many rows that contain redundant data. After
- # having received the first row, we already have enough data to instantiate
- # the Author object. In all subsequent rows, only the data for the joined
- # 'books' table is useful; the joined 'authors' data is just redundant, and
- # processing this redundant data takes memory and CPU time. The problem
- # quickly becomes worse and worse as the level of eager loading increases
- # (i.e. if Active Record is to eager load the associations' associations as
- # well).
+ # When you load an author with all associated books Active Record will make
+ # multiple queries like this:
+ #
+ # Author.includes(:books).where(:name => ['bell hooks', 'Homer').to_a
+ #
+ # => SELECT `authors`.* FROM `authors` WHERE `name` IN ('bell hooks', 'Homer')
+ # => SELECT `books`.* FROM `books` WHERE `author_id` IN (2, 5)
+ #
+ # Active Record saves the ids of the records from the first query to use in
+ # the second. Depending on the number of associations involved there can be
+ # arbitrarily many SQL queries made.
+ #
+ # However, if there is a WHERE clause that spans across tables Active
+ # Record will fall back to a slightly more resource-intensive single query:
+ #
+ # Author.includes(:books).where(books: {title: 'Illiad'}).to_a
+ # => SELECT `authors`.`id` AS t0_r0, `authors`.`name` AS t0_r1, `authors`.`age` AS t0_r2,
+ # `books`.`id` AS t1_r0, `books`.`title` AS t1_r1, `books`.`sales` AS t1_r2
+ # FROM `authors`
+ # LEFT OUTER JOIN `books` ON `authors`.`id` = `books`.`author_id`
+ # WHERE `books`.`title` = 'Illiad'
+ #
+ # This could result in many rows that contain redundant data and it performs poorly at scale
+ # and is therefore only used when necessary.
#
- # The second strategy is to use multiple database queries, one for each
- # level of association. Since Rails 2.1, this is the default strategy. In
- # situations where a table join is necessary (e.g. when the +:conditions+
- # option references an association's column), it will fallback to the table
- # join strategy.
class Preloader #:nodoc:
extend ActiveSupport::Autoload
diff --git a/activerecord/lib/active_record/associations/singular_association.rb b/activerecord/lib/active_record/associations/singular_association.rb
index f2e3a4e40f..b9326b9683 100644
--- a/activerecord/lib/active_record/associations/singular_association.rb
+++ b/activerecord/lib/active_record/associations/singular_association.rb
@@ -39,7 +39,7 @@ module ActiveRecord
end
def get_records
- return scope.limit(1).to_a if reflection.scope_chain.any?(&:any?)
+ return scope.limit(1).to_a if reflection.scope_chain.any?(&:any?) || scope.eager_loading?
conn = klass.connection
sc = reflection.association_scope_cache(conn, owner) do
diff --git a/activerecord/lib/active_record/attribute_methods.rb b/activerecord/lib/active_record/attribute_methods.rb
index 1ff28ceccc..f4a4e3f605 100644
--- a/activerecord/lib/active_record/attribute_methods.rb
+++ b/activerecord/lib/active_record/attribute_methods.rb
@@ -31,7 +31,7 @@ module ActiveRecord
end
}
- BLACKLISTED_CLASS_METHODS = %w(private public protected)
+ BLACKLISTED_CLASS_METHODS = %w(private public protected allocate new name parent superclass)
class AttributeMethodCache
def initialize
@@ -69,6 +69,8 @@ module ActiveRecord
@generated_attribute_methods = GeneratedAttributeMethods.new { extend Mutex_m }
@attribute_methods_generated = false
include @generated_attribute_methods
+
+ super
end
# Generates all the attribute related methods for columns in the database
@@ -109,7 +111,7 @@ module ActiveRecord
# # => false
def instance_method_already_implemented?(method_name)
if dangerous_attribute_method?(method_name)
- raise DangerousAttributeError, "#{method_name} is defined by Active Record"
+ raise DangerousAttributeError, "#{method_name} is defined by Active Record. Check to make sure that you don't have an attribute or method with the same name."
end
if superclass == Base
@@ -203,11 +205,9 @@ module ActiveRecord
def column_for_attribute(name)
column = columns_hash[name.to_s]
if column.nil?
- ActiveSupport::Deprecation.warn(<<-MESSAGE.strip_heredoc)
- `column_for_attribute` will return a null object for non-existent columns
- in Rails 5.0. Use `has_attribute?` if you need to check for an
- attribute's existence.
- MESSAGE
+ ActiveSupport::Deprecation.warn \
+ "`column_for_attribute` will return a null object for non-existent columns " \
+ "in Rails 5.0. Use `has_attribute?` if you need to check for an attribute's existence."
end
column
end
diff --git a/activerecord/lib/active_record/attribute_methods/dirty.rb b/activerecord/lib/active_record/attribute_methods/dirty.rb
index d3f4e51c33..2f02738f6d 100644
--- a/activerecord/lib/active_record/attribute_methods/dirty.rb
+++ b/activerecord/lib/active_record/attribute_methods/dirty.rb
@@ -43,14 +43,6 @@ module ActiveRecord
calculate_changes_from_defaults
end
- def changed?
- super || changed_in_place.any?
- end
-
- def changed
- super | changed_in_place
- end
-
def changes_applied
super
store_original_raw_attributes
@@ -62,7 +54,19 @@ module ActiveRecord
end
def changed_attributes
- super.reverse_merge(attributes_changed_in_place).freeze
+ # This should only be set by methods which will call changed_attributes
+ # multiple times when it is known that the computed value cannot change.
+ if defined?(@cached_changed_attributes)
+ @cached_changed_attributes
+ else
+ super.reverse_merge(attributes_changed_in_place).freeze
+ end
+ end
+
+ def changes
+ cache_changed_attributes do
+ super
+ end
end
private
@@ -165,6 +169,13 @@ module ActiveRecord
store_original_raw_attribute(attr)
end
end
+
+ def cache_changed_attributes
+ @cached_changed_attributes = changed_attributes
+ yield
+ ensure
+ remove_instance_variable(:@cached_changed_attributes)
+ end
end
end
end
diff --git a/activerecord/lib/active_record/attribute_methods/query.rb b/activerecord/lib/active_record/attribute_methods/query.rb
index 0f9723febb..dc689f399a 100644
--- a/activerecord/lib/active_record/attribute_methods/query.rb
+++ b/activerecord/lib/active_record/attribute_methods/query.rb
@@ -8,7 +8,7 @@ module ActiveRecord
end
def query_attribute(attr_name)
- value = read_attribute(attr_name) { |n| missing_attribute(n, caller) }
+ value = self[attr_name]
case value
when true then true
diff --git a/activerecord/lib/active_record/attribute_methods/read.rb b/activerecord/lib/active_record/attribute_methods/read.rb
index 10869dfc1e..bf2a084a00 100644
--- a/activerecord/lib/active_record/attribute_methods/read.rb
+++ b/activerecord/lib/active_record/attribute_methods/read.rb
@@ -46,9 +46,7 @@ module ActiveRecord
protected
def cached_attributes_deprecation_warning(method_name)
- ActiveSupport::Deprecation.warn(<<-MESSAGE.strip_heredoc)
- Calling `#{method_name}` is no longer necessary. All attributes are cached.
- MESSAGE
+ ActiveSupport::Deprecation.warn "Calling `#{method_name}` is no longer necessary. All attributes are cached."
end
if Module.methods_transplantable?
diff --git a/activerecord/lib/active_record/attribute_methods/serialization.rb b/activerecord/lib/active_record/attribute_methods/serialization.rb
index 264ce2bdfa..100d6d4229 100644
--- a/activerecord/lib/active_record/attribute_methods/serialization.rb
+++ b/activerecord/lib/active_record/attribute_methods/serialization.rb
@@ -54,10 +54,9 @@ module ActiveRecord
end
def serialized_attributes
- ActiveSupport::Deprecation.warn(<<-WARNING.strip_heredoc)
- `serialized_attributes` is deprecated without replacement, and will
- be removed in Rails 5.0.
- WARNING
+ ActiveSupport::Deprecation.warn "`serialized_attributes` is deprecated " \
+ "without replacement, and will be removed in Rails 5.0."
+
@serialized_attributes ||= Hash[
columns.select { |t| t.cast_type.is_a?(Type::Serialized) }.map { |c|
[c.name, c.cast_type.coder]
diff --git a/activerecord/lib/active_record/autosave_association.rb b/activerecord/lib/active_record/autosave_association.rb
index dd92e29199..a8e4d25df2 100644
--- a/activerecord/lib/active_record/autosave_association.rb
+++ b/activerecord/lib/active_record/autosave_association.rb
@@ -338,7 +338,6 @@ module ActiveRecord
autosave = reflection.options[:autosave]
if records = associated_records_to_validate_or_save(association, @new_record_before_save, autosave)
-
if autosave
records_to_destroy = records.select(&:marked_for_destruction?)
records_to_destroy.each { |record| association.destroy(record) }
@@ -362,7 +361,6 @@ module ActiveRecord
raise ActiveRecord::Rollback unless saved
end
- @new_record_before_save = false
end
# reconstruct the scope now that we know the owner's id
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/schema_creation.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_creation.rb
index adad6cd542..6bab260f5a 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/schema_creation.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_creation.rb
@@ -1,3 +1,5 @@
+require 'active_support/core_ext/string/strip'
+
module ActiveRecord
module ConnectionAdapters
class AbstractAdapter
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb
index 92ac607a3c..fe00f9d750 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb
@@ -2,7 +2,6 @@ require 'date'
require 'set'
require 'bigdecimal'
require 'bigdecimal/util'
-require 'active_support/core_ext/string/strip'
module ActiveRecord
module ConnectionAdapters #:nodoc:
@@ -61,12 +60,11 @@ module ActiveRecord
def emit_warning_if_null_unspecified(options)
return if options.key?(:null)
- ActiveSupport::Deprecation.warn(<<-MESSAGE.strip_heredoc)
- `timestamp` was called without specifying an option for `null`. In Rails
- 5.0, this behavior will change to `null: false`. You should manually
- specify `null: true` to prevent the behavior of your existing migrations
- from changing.
- MESSAGE
+ ActiveSupport::Deprecation.warn \
+ "`timestamp` was called without specifying an option for `null`. In Rails " \
+ "5.0, this behavior will change to `null: false`. You should manually " \
+ "specify `null: true` to prevent the behavior of your existing migrations " \
+ "from changing."
end
end
@@ -327,7 +325,6 @@ module ActiveRecord
end
column.limit = limit
- column.array = options[:array] if column.respond_to?(:array)
column.precision = options[:precision]
column.scale = options[:scale]
column.default = options[:default]
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/schema_dumper.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_dumper.rb
index 9bd0401e40..b05a4f8440 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/schema_dumper.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_dumper.rb
@@ -19,12 +19,16 @@ module ActiveRecord
spec = {}
spec[:name] = column.name.inspect
spec[:type] = column.type.to_s
- spec[:limit] = column.limit.inspect if column.limit != types[column.type][:limit]
+ spec[:null] = 'false' unless column.null
+
+ limit = column.limit || types[column.type][:limit]
+ spec[:limit] = limit.inspect if limit
spec[:precision] = column.precision.inspect if column.precision
spec[:scale] = column.scale.inspect if column.scale
- spec[:null] = 'false' unless column.null
- spec[:default] = schema_default(column) if column.has_default?
- spec.delete(:default) if spec[:default].nil?
+
+ default = schema_default(column) if column.has_default?
+ spec[:default] = default unless default.nil?
+
spec
end
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb b/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb
index 08b219cdd8..fd666c8c39 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb
@@ -190,15 +190,17 @@ module ActiveRecord
rollback_transaction if transaction
raise
ensure
- begin
+ unless error
if Thread.current.status == 'aborting'
rollback_transaction
- elsif !error
- commit_transaction
+ else
+ begin
+ commit_transaction
+ rescue Exception
+ transaction.rollback unless transaction.state.completed?
+ raise
+ end
end
- rescue Exception
- transaction.rollback unless transaction.state.completed?
- raise
end
end
diff --git a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb
index a1b6671664..a0d9086875 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb
@@ -66,6 +66,7 @@ module ActiveRecord
# Most of the methods in the adapter are useful during migrations. Most
# notably, the instance methods provided by SchemaStatement are very useful.
class AbstractAdapter
+ ADAPTER_NAME = 'Abstract'.freeze
include Quoting, DatabaseStatements, SchemaStatements
include DatabaseLimits
include QueryCache
@@ -167,7 +168,7 @@ module ActiveRecord
# Returns the human-readable name of the adapter. Use mixed case - one
# can always use downcase if needed.
def adapter_name
- 'Abstract'
+ self.class::ADAPTER_NAME
end
# Does this adapter support migrations?
@@ -239,6 +240,11 @@ module ActiveRecord
false
end
+ # Does this adapter support views?
+ def supports_views?
+ false
+ end
+
# This is meant to be implemented by the adapters that support extensions
def disable_extension(name)
end
diff --git a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
index a1c370b05d..037fb69dfb 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
@@ -1,4 +1,5 @@
require 'arel/visitors/bind_visitor'
+require 'active_support/core_ext/string/strip'
module ActiveRecord
module ConnectionAdapters
@@ -161,10 +162,6 @@ module ActiveRecord
end
end
- def adapter_name #:nodoc:
- self.class::ADAPTER_NAME
- end
-
# Returns true, since this connection adapter supports migrations.
def supports_migrations?
true
@@ -200,6 +197,10 @@ module ActiveRecord
true
end
+ def supports_views?
+ version[0] >= 5
+ end
+
def native_database_types
NATIVE_DATABASE_TYPES
end
@@ -639,18 +640,21 @@ module ActiveRecord
def initialize_type_map(m) # :nodoc:
super
+
m.register_type(%r(enum)i) do |sql_type|
limit = sql_type[/^enum\((.+)\)/i, 1]
.split(',').map{|enum| enum.strip.length - 2}.max
Type::String.new(limit: limit)
end
- m.register_type %r(tinytext)i, Type::Text.new(limit: 255)
- m.register_type %r(tinyblob)i, Type::Binary.new(limit: 255)
- m.register_type %r(mediumtext)i, Type::Text.new(limit: 16777215)
- m.register_type %r(mediumblob)i, Type::Binary.new(limit: 16777215)
- m.register_type %r(longtext)i, Type::Text.new(limit: 2147483647)
- m.register_type %r(longblob)i, Type::Binary.new(limit: 2147483647)
+ m.register_type %r(tinytext)i, Type::Text.new(limit: 2**8 - 1)
+ m.register_type %r(tinyblob)i, Type::Binary.new(limit: 2**8 - 1)
+ m.register_type %r(text)i, Type::Text.new(limit: 2**16 - 1)
+ m.register_type %r(blob)i, Type::Binary.new(limit: 2**16 - 1)
+ m.register_type %r(mediumtext)i, Type::Text.new(limit: 2**24 - 1)
+ m.register_type %r(mediumblob)i, Type::Binary.new(limit: 2**24 - 1)
+ m.register_type %r(longtext)i, Type::Text.new(limit: 2**32 - 1)
+ m.register_type %r(longblob)i, Type::Binary.new(limit: 2**32 - 1)
m.register_type %r(^bigint)i, Type::Integer.new(limit: 8)
m.register_type %r(^int)i, Type::Integer.new(limit: 4)
m.register_type %r(^mediumint)i, Type::Integer.new(limit: 3)
@@ -782,10 +786,6 @@ module ActiveRecord
full_version =~ /mariadb/i
end
- def supports_views?
- version[0] >= 5
- end
-
def supports_rename_index?
mariadb? ? false : (version[0] == 5 && version[1] >= 7) || version[0] >= 6
end
@@ -812,7 +812,11 @@ module ActiveRecord
# NAMES does not have an equals sign, see
# http://dev.mysql.com/doc/refman/5.0/en/set-statement.html#id944430
# (trailing comma because variable_assignments will always have content)
- encoding = "NAMES #{@config[:encoding]}, " if @config[:encoding]
+ if @config[:encoding]
+ encoding = "NAMES #{@config[:encoding]}"
+ encoding << " COLLATE #{@config[:collation]}" if @config[:collation]
+ encoding << ", "
+ end
# Gather up all of the SET variables...
variable_assignments = variables.map do |k, v|
diff --git a/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb b/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb
index 39d52e6349..38bdddefba 100644
--- a/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb
@@ -29,7 +29,7 @@ module ActiveRecord
module ConnectionAdapters
class Mysql2Adapter < AbstractMysqlAdapter
- ADAPTER_NAME = 'Mysql2'
+ ADAPTER_NAME = 'Mysql2'.freeze
def initialize(connection, logger, connection_options, config)
super
diff --git a/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb b/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb
index a03bc28744..da3aecf69a 100644
--- a/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb
@@ -66,7 +66,7 @@ module ActiveRecord
# * <tt>:sslcipher</tt> - Necessary to use MySQL with an SSL connection.
#
class MysqlAdapter < AbstractMysqlAdapter
- ADAPTER_NAME = 'MySQL'
+ ADAPTER_NAME = 'MySQL'.freeze
class StatementPool < ConnectionAdapters::StatementPool
def initialize(connection, max = 1000)
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/range.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/range.rb
index ae967d5167..84b9490ba3 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/range.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/range.rb
@@ -25,10 +25,10 @@ module ActiveRecord
if !infinity?(from) && extracted[:exclude_start]
if from.respond_to?(:succ)
from = from.succ
- ActiveSupport::Deprecation.warn <<-MESSAGE
-Excluding the beginning of a Range is only partialy supported through `#succ`.
-This is not reliable and will be removed in the future.
- MESSAGE
+ ActiveSupport::Deprecation.warn \
+ "Excluding the beginning of a Range is only partialy supported " \
+ "through `#succ`. This is not reliable and will be removed in " \
+ "the future."
else
raise ArgumentError, "The Ruby Range object does not support excluding the beginning of a Range. (unsupported value: '#{value}')"
end
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/uuid.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/uuid.rb
index dd97393eac..033e0324bb 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/uuid.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/uuid.rb
@@ -12,6 +12,8 @@ module ActiveRecord
[a-fA-F0-9]{4}-?
[a-fA-F0-9]{4}-?\}?\z}x
+ alias_method :type_cast_for_database, :type_cast_from_database
+
def type
:uuid
end
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb b/activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb
index 83554bbf74..b37630a04c 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb
@@ -131,12 +131,10 @@ module ActiveRecord
column name, type, options
end
- def column(name, type = nil, options = {})
- super
- column = self[name]
+ def new_column_definition(name, type, options) # :nodoc:
+ column = super
column.array = options[:array]
-
- self
+ column
end
private
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb b/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb
index 7042817672..767b6b614a 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb
@@ -281,9 +281,9 @@ module ActiveRecord
def default_sequence_name(table_name, pk = nil) #:nodoc:
result = serial_sequence(table_name, pk || 'id')
return nil unless result
- Utils.extract_schema_qualified_name(result)
+ Utils.extract_schema_qualified_name(result).to_s
rescue ActiveRecord::StatementInvalid
- PostgreSQL::Name.new(nil, "#{table_name}_#{pk || 'id'}_seq")
+ PostgreSQL::Name.new(nil, "#{table_name}_#{pk || 'id'}_seq").to_s
end
def serial_sequence(table, column)
@@ -549,7 +549,8 @@ module ActiveRecord
# Convert Arel node to string
s = s.to_sql unless s.is_a?(String)
# Remove any ASC/DESC modifiers
- s.gsub(/\s+(?:ASC|DESC)?\s*(?:NULLS\s+(?:FIRST|LAST)\s*)?/i, '')
+ s.gsub(/\s+(?:ASC|DESC)\b/i, '')
+ .gsub(/\s+NULLS\s+(?:FIRST|LAST)\b/i, '')
}.reject(&:blank?).map.with_index { |column, i| "#{column} AS alias_#{i}" }
[super, *order_columns].join(', ')
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb
index eede374678..80461f3910 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb
@@ -74,7 +74,7 @@ module ActiveRecord
# In addition, default connection parameters of libpq can be set per environment variables.
# See http://www.postgresql.org/docs/9.1/static/libpq-envars.html .
class PostgreSQLAdapter < AbstractAdapter
- ADAPTER_NAME = 'PostgreSQL'
+ ADAPTER_NAME = 'PostgreSQL'.freeze
NATIVE_DATABASE_TYPES = {
primary_key: "serial primary key",
@@ -118,11 +118,6 @@ module ActiveRecord
include PostgreSQL::DatabaseStatements
include Savepoints
- # Returns 'PostgreSQL' as adapter name for identification purposes.
- def adapter_name
- ADAPTER_NAME
- end
-
def schema_creation # :nodoc:
PostgreSQL::SchemaCreation.new self
end
@@ -163,6 +158,10 @@ module ActiveRecord
true
end
+ def supports_views?
+ true
+ end
+
def index_algorithms
{ concurrently: 'CONCURRENTLY' }
end
diff --git a/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb b/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb
index faf1cdc686..ebb311df57 100644
--- a/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb
@@ -67,6 +67,7 @@ module ActiveRecord
#
# * <tt>:database</tt> - Path to the database file.
class SQLite3Adapter < AbstractAdapter
+ ADAPTER_NAME = 'SQLite'.freeze
include Savepoints
NATIVE_DATABASE_TYPES = {
@@ -147,10 +148,6 @@ module ActiveRecord
end
end
- def adapter_name #:nodoc:
- 'SQLite'
- end
-
def supports_ddl_transactions?
true
end
@@ -186,6 +183,10 @@ module ActiveRecord
true
end
+ def supports_views?
+ true
+ end
+
def active?
@active != false
end
@@ -372,7 +373,7 @@ module ActiveRecord
sql = <<-SQL
SELECT name
FROM sqlite_master
- WHERE type = 'table' AND NOT name = 'sqlite_sequence'
+ WHERE (type = 'table' OR type = 'view') AND NOT name = 'sqlite_sequence'
SQL
sql << " AND name = #{quote_table_name(table_name)}" if table_name
diff --git a/activerecord/lib/active_record/core.rb b/activerecord/lib/active_record/core.rb
index d22806fbdf..83859e474a 100644
--- a/activerecord/lib/active_record/core.rb
+++ b/activerecord/lib/active_record/core.rb
@@ -151,7 +151,8 @@ module ActiveRecord
end
def find_by(*args)
- return super if current_scope || args.length > 1 || reflect_on_all_aggregations.any?
+ return super if current_scope || !(Hash === args.first) || reflect_on_all_aggregations.any?
+ return super if default_scopes.any?
hash = args.first
@@ -177,9 +178,11 @@ module ActiveRecord
end
end
- def initialize_generated_modules
- super
+ def find_by!(*args)
+ find_by(*args) or raise RecordNotFound
+ end
+ def initialize_generated_modules
generated_association_methods
end
diff --git a/activerecord/lib/active_record/fixtures.rb b/activerecord/lib/active_record/fixtures.rb
index 727f12103a..4527452f1a 100644
--- a/activerecord/lib/active_record/fixtures.rb
+++ b/activerecord/lib/active_record/fixtures.rb
@@ -126,7 +126,7 @@ module ActiveRecord
# that is included in <tt>ActiveRecord::FixtureSet.context_class</tt>.
#
# - define a helper method in `test_helper.rb`
- # class FixtureFileHelpers
+ # module FixtureFileHelpers
# def file_sha(path)
# Digest::SHA2.hexdigest(File.read(Rails.root.join('test/fixtures', path)))
# end
@@ -515,7 +515,7 @@ module ActiveRecord
::File.join(fixtures_directory, fs_name))
end
- all_loaded_fixtures.update(fixtures_map)
+ update_all_loaded_fixtures fixtures_map
connection.transaction(:requires_new => true) do
fixture_sets.each do |fs|
@@ -562,6 +562,10 @@ module ActiveRecord
@context_class ||= Class.new
end
+ def self.update_all_loaded_fixtures(fixtures_map) # :nodoc:
+ all_loaded_fixtures.update(fixtures_map)
+ end
+
attr_reader :table_name, :name, :fixtures, :model_class, :config
def initialize(connection, name, class_name, path, config = ActiveRecord::Base)
diff --git a/activerecord/lib/active_record/gem_version.rb b/activerecord/lib/active_record/gem_version.rb
index 4a7aace460..15c9dee712 100644
--- a/activerecord/lib/active_record/gem_version.rb
+++ b/activerecord/lib/active_record/gem_version.rb
@@ -1,5 +1,5 @@
module ActiveRecord
- # Returns the version of the currently loaded ActiveRecord as a <tt>Gem::Version</tt>
+ # Returns the version of the currently loaded Active Record as a <tt>Gem::Version</tt>
def self.gem_version
Gem::Version.new VERSION::STRING
end
@@ -8,7 +8,7 @@ module ActiveRecord
MAJOR = 4
MINOR = 2
TINY = 0
- PRE = "alpha"
+ PRE = "beta1"
STRING = [MAJOR, MINOR, TINY, PRE].compact.join(".")
end
diff --git a/activerecord/lib/active_record/reflection.rb b/activerecord/lib/active_record/reflection.rb
index 331b6b0698..6b5a592ee5 100644
--- a/activerecord/lib/active_record/reflection.rb
+++ b/activerecord/lib/active_record/reflection.rb
@@ -339,12 +339,13 @@ module ActiveRecord
return unless scope
if scope.arity > 0
- ActiveSupport::Deprecation.warn <<-WARNING
-The association scope '#{name}' is instance dependent (the scope block takes an argument).
-Preloading happens before the individual instances are created. This means that there is no instance
-being passed to the association scope. This will most likely result in broken or incorrect behavior.
-Joining, Preloading and eager loading of these associations is deprecated and will be removed in the future.
- WARNING
+ ActiveSupport::Deprecation.warn \
+ "The association scope '#{name}' is instance dependent (the scope " \
+ "block takes an argument). Preloading happens before the individual " \
+ "instances are created. This means that there is no instance being " \
+ "passed to the association scope. This will most likely result in " \
+ "broken or incorrect behavior. Joining, Preloading and eager loading " \
+ "of these associations is deprecated and will be removed in the future."
end
end
alias :check_eager_loadable! :check_preloadable!
@@ -727,8 +728,11 @@ Joining, Preloading and eager loading of these associations is deprecated and wi
through_scope_chain = through_reflection.scope_chain.map(&:dup)
if options[:source_type]
- through_scope_chain.first <<
- through_reflection.klass.where(foreign_type => options[:source_type])
+ type = foreign_type
+ source_type = options[:source_type]
+ through_scope_chain.first << lambda { |object|
+ where(type => source_type)
+ }
end
# Recursively fill out the rest of the array from the through reflection
@@ -787,15 +791,13 @@ Joining, Preloading and eager loading of these associations is deprecated and wi
if names.length > 1
example_options = options.dup
example_options[:source] = source_reflection_names.first
- ActiveSupport::Deprecation.warn <<-eowarn
-Ambiguous source reflection for through association. Please specify a :source
-directive on your declaration like:
-
- class #{active_record.name} < ActiveRecord::Base
- #{macro} :#{name}, #{example_options}
- end
-
- eowarn
+ ActiveSupport::Deprecation.warn \
+ "Ambiguous source reflection for through association. Please " \
+ "specify a :source directive on your declaration like:\n" \
+ "\n" \
+ " class #{active_record.name} < ActiveRecord::Base\n" \
+ " #{macro} :#{name}, #{example_options}\n" \
+ " end"
end
@source_reflection_name = names.first
diff --git a/activerecord/lib/active_record/relation/finder_methods.rb b/activerecord/lib/active_record/relation/finder_methods.rb
index a7899da3a8..b1753b27e1 100644
--- a/activerecord/lib/active_record/relation/finder_methods.rb
+++ b/activerecord/lib/active_record/relation/finder_methods.rb
@@ -401,8 +401,9 @@ module ActiveRecord
"#{quoted_table_name}.#{quoted_primary_key}", relation.order_values)
relation = relation.except(:select).select(values).distinct!
+ arel = relation.arel
- id_rows = @klass.connection.select_all(relation.arel, 'SQL', relation.bind_values)
+ id_rows = @klass.connection.select_all(arel, 'SQL', arel.bind_values + relation.bind_values)
id_rows.map {|row| row[primary_key]}
end
diff --git a/activerecord/lib/active_record/relation/predicate_builder/array_handler.rb b/activerecord/lib/active_record/relation/predicate_builder/array_handler.rb
index 78dba8be06..b8d9240bf8 100644
--- a/activerecord/lib/active_record/relation/predicate_builder/array_handler.rb
+++ b/activerecord/lib/active_record/relation/predicate_builder/array_handler.rb
@@ -2,12 +2,20 @@ module ActiveRecord
class PredicateBuilder
class ArrayHandler # :nodoc:
def call(attribute, value)
- return attribute.in([]) if value.empty?
-
values = value.map { |x| x.is_a?(Base) ? x.id : x }
- ranges, values = values.partition { |v| v.is_a?(Range) }
nils, values = values.partition(&:nil?)
+ if values.any? { |val| val.is_a?(Array) }
+ ActiveSupport::Deprecation.warn "Passing a nested array to Active Record " \
+ "finder methods is deprecated and will be removed. Flatten your array " \
+ "before using it for 'IN' conditions."
+ values = values.flatten
+ end
+
+ return attribute.in([]) if values.empty? && nils.empty?
+
+ ranges, values = values.partition { |v| v.is_a?(Range) }
+
values_predicate =
case values.length
when 0 then NullPredicate
@@ -20,7 +28,7 @@ module ActiveRecord
end
array_predicates = ranges.map { |range| attribute.in(range) }
- array_predicates << values_predicate
+ array_predicates.unshift(values_predicate)
array_predicates.inject { |composite, predicate| composite.or(predicate) }
end
diff --git a/activerecord/lib/active_record/relation/query_methods.rb b/activerecord/lib/active_record/relation/query_methods.rb
index 067966321d..bbddd28ccc 100644
--- a/activerecord/lib/active_record/relation/query_methods.rb
+++ b/activerecord/lib/active_record/relation/query_methods.rb
@@ -94,10 +94,8 @@ module ActiveRecord
def check_cached_relation # :nodoc:
if defined?(@arel) && @arel
@arel = nil
- ActiveSupport::Deprecation.warn <<-WARNING
-Modifying already cached Relation. The cache will be reset.
-Use a cloned Relation to prevent this warning.
-WARNING
+ ActiveSupport::Deprecation.warn "Modifying already cached Relation. The " \
+ "cache will be reset. Use a cloned Relation to prevent this warning."
end
end
@@ -689,11 +687,11 @@ WARNING
# end
#
def none
- extending(NullRelation)
+ where("1=0").extending!(NullRelation)
end
def none! # :nodoc:
- extending!(NullRelation)
+ where!("1=0").extending!(NullRelation)
end
# Sets readonly attributes for the returned relation. If value is
@@ -881,12 +879,10 @@ WARNING
arel.lock(lock_value) if lock_value
# Reorder bind indexes if joins produced bind values
- if arel.bind_values.any?
- bvs = arel.bind_values + bind_values
- arel.ast.grep(Arel::Nodes::BindParam).each_with_index do |bp, i|
- column = bvs[i].first
- bp.replace connection.substitute_at(column, i)
- end
+ bvs = arel.bind_values + bind_values
+ arel.ast.grep(Arel::Nodes::BindParam).each_with_index do |bp, i|
+ column = bvs[i].first
+ bp.replace connection.substitute_at(column, i)
end
arel
diff --git a/activerecord/lib/active_record/schema_dumper.rb b/activerecord/lib/active_record/schema_dumper.rb
index fae6427ea1..68d976c240 100644
--- a/activerecord/lib/active_record/schema_dumper.rb
+++ b/activerecord/lib/active_record/schema_dumper.rb
@@ -111,12 +111,7 @@ HEADER
tbl = StringIO.new
# first dump primary key column
- if @connection.respond_to?(:pk_and_sequence_for)
- pk, _ = @connection.pk_and_sequence_for(table)
- end
- if !pk && @connection.respond_to?(:primary_key)
- pk = @connection.primary_key(table)
- end
+ pk = @connection.primary_key(table)
tbl.print " create_table #{remove_prefix_and_suffix(table).inspect}"
pkcol = columns.detect { |c| c.name == pk }
@@ -188,25 +183,22 @@ HEADER
if (indexes = @connection.indexes(table)).any?
add_index_statements = indexes.map do |index|
statement_parts = [
- ('add_index ' + remove_prefix_and_suffix(index.table).inspect),
+ "add_index #{remove_prefix_and_suffix(index.table).inspect}",
index.columns.inspect,
- ('name: ' + index.name.inspect),
+ "name: #{index.name.inspect}",
]
statement_parts << 'unique: true' if index.unique
index_lengths = (index.lengths || []).compact
- statement_parts << ('length: ' + Hash[index.columns.zip(index.lengths)].inspect) unless index_lengths.empty?
-
- index_orders = (index.orders || {})
- statement_parts << ('order: ' + index.orders.inspect) unless index_orders.empty?
+ statement_parts << "length: #{Hash[index.columns.zip(index.lengths)].inspect}" if index_lengths.any?
- statement_parts << ('where: ' + index.where.inspect) if index.where
+ index_orders = index.orders || {}
+ statement_parts << "order: #{index.orders.inspect}" if index_orders.any?
+ statement_parts << "where: #{index.where.inspect}" if index.where
+ statement_parts << "using: #{index.using.inspect}" if index.using
+ statement_parts << "type: #{index.type.inspect}" if index.type
- statement_parts << ('using: ' + index.using.inspect) if index.using
-
- statement_parts << ('type: ' + index.type.inspect) if index.type
-
- ' ' + statement_parts.join(', ')
+ " #{statement_parts.join(', ')}"
end
stream.puts add_index_statements.sort.join("\n")
@@ -218,26 +210,26 @@ HEADER
if (foreign_keys = @connection.foreign_keys(table)).any?
add_foreign_key_statements = foreign_keys.map do |foreign_key|
parts = [
- 'add_foreign_key ' + remove_prefix_and_suffix(foreign_key.from_table).inspect,
- remove_prefix_and_suffix(foreign_key.to_table).inspect,
- ]
+ "add_foreign_key #{remove_prefix_and_suffix(foreign_key.from_table).inspect}",
+ remove_prefix_and_suffix(foreign_key.to_table).inspect,
+ ]
if foreign_key.column != @connection.foreign_key_column_for(foreign_key.to_table)
- parts << ('column: ' + foreign_key.column.inspect)
+ parts << "column: #{foreign_key.column.inspect}"
end
if foreign_key.custom_primary_key?
- parts << ('primary_key: ' + foreign_key.primary_key.inspect)
+ parts << "primary_key: #{foreign_key.primary_key.inspect}"
end
if foreign_key.name !~ /^fk_rails_[0-9a-f]{10}$/
- parts << ('name: ' + foreign_key.name.inspect)
+ parts << "name: #{foreign_key.name.inspect}"
end
- parts << ('on_update: ' + foreign_key.on_update.inspect) if foreign_key.on_update
- parts << ('on_delete: ' + foreign_key.on_delete.inspect) if foreign_key.on_delete
+ parts << "on_update: #{foreign_key.on_update.inspect}" if foreign_key.on_update
+ parts << "on_delete: #{foreign_key.on_delete.inspect}" if foreign_key.on_delete
- ' ' + parts.join(', ')
+ " #{parts.join(', ')}"
end
stream.puts add_foreign_key_statements.sort.join("\n")
diff --git a/activerecord/lib/active_record/tasks/database_tasks.rb b/activerecord/lib/active_record/tasks/database_tasks.rb
index 892c78e479..f9b54139d5 100644
--- a/activerecord/lib/active_record/tasks/database_tasks.rb
+++ b/activerecord/lib/active_record/tasks/database_tasks.rb
@@ -131,10 +131,12 @@ module ActiveRecord
verbose = ENV["VERBOSE"] ? ENV["VERBOSE"] == "true" : true
version = ENV["VERSION"] ? ENV["VERSION"].to_i : nil
scope = ENV['SCOPE']
- Migration.verbose = verbose
+ verbose_was, Migration.verbose = Migration.verbose, verbose
Migrator.migrate(Migrator.migrations_paths, version) do |migration|
scope.blank? || scope == migration.scope
end
+ ensure
+ Migration.verbose = verbose_was
end
def charset_current(environment = env)
@@ -169,6 +171,7 @@ module ActiveRecord
each_current_configuration(environment) { |configuration|
purge configuration
}
+ ActiveRecord::Base.establish_connection(environment.to_sym)
end
def structure_dump(*arguments)
@@ -184,10 +187,10 @@ module ActiveRecord
end
def load_schema(format = ActiveRecord::Base.schema_format, file = nil)
- ActiveSupport::Deprecation.warn(<<-MESSAGE.strip_heredoc)
- This method will act on a specific connection in the future.
- To act on the current connection, use `load_schema_current` instead.
- MESSAGE
+ ActiveSupport::Deprecation.warn \
+ "This method will act on a specific connection in the future. " \
+ "To act on the current connection, use `load_schema_current` instead."
+
load_schema_current(format, file)
end
@@ -215,6 +218,7 @@ module ActiveRecord
each_current_configuration(environment) { |configuration|
load_schema_for configuration, format, file
}
+ ActiveRecord::Base.establish_connection(environment.to_sym)
end
def check_schema_file(filename)
diff --git a/activerecord/lib/active_record/transactions.rb b/activerecord/lib/active_record/transactions.rb
index 1bb7aab8fb..45bc10b9b0 100644
--- a/activerecord/lib/active_record/transactions.rb
+++ b/activerecord/lib/active_record/transactions.rb
@@ -3,15 +3,15 @@ module ActiveRecord
module Transactions
extend ActiveSupport::Concern
ACTIONS = [:create, :destroy, :update]
- CALLBACK_WARN_MESSAGE = <<-EOF
-Currently, Active Record will rescue any errors raised within
-after_rollback/after_commit callbacks and print them to the logs. In the next
-version, these errors will no longer be rescued. Instead, they will simply
-bubble just like other Active Record callbacks.
-
-You can opt into the new behavior and remove this warning by setting
-config.active_record.raise_in_transactional_callbacks to true.
-EOF
+ CALLBACK_WARN_MESSAGE = "Currently, Active Record suppresses errors raised " \
+ "within `after_rollback`/`after_commit` callbacks and only print them to " \
+ "the logs. In the next version, these errors will no longer be suppressed. " \
+ "Instead, the errors will propagate normally just like in other Active " \
+ "Record callbacks.\n" \
+ "\n" \
+ "You can opt into the new behavior and remove this warning by setting:\n" \
+ "\n" \
+ " config.active_record.raise_in_transactional_callbacks = true"
included do
define_callbacks :commit, :rollback,
diff --git a/activerecord/lib/active_record/type/binary.rb b/activerecord/lib/active_record/type/binary.rb
index d29ff4e494..005a48ef0d 100644
--- a/activerecord/lib/active_record/type/binary.rb
+++ b/activerecord/lib/active_record/type/binary.rb
@@ -22,6 +22,11 @@ module ActiveRecord
Data.new(super)
end
+ def changed_in_place?(raw_old_value, value)
+ old_value = type_cast_from_database(raw_old_value)
+ old_value != value
+ end
+
class Data # :nodoc:
def initialize(value)
@value = value.to_s
@@ -30,10 +35,15 @@ module ActiveRecord
def to_s
@value
end
+ alias_method :to_str, :to_s
def hex
@value.unpack('H*')[0]
end
+
+ def ==(other)
+ other == to_s || super
+ end
end
end
end
diff --git a/activerecord/lib/active_record/type/serialized.rb b/activerecord/lib/active_record/type/serialized.rb
index abeea769c4..5b512433b0 100644
--- a/activerecord/lib/active_record/type/serialized.rb
+++ b/activerecord/lib/active_record/type/serialized.rb
@@ -26,6 +26,11 @@ module ActiveRecord
end
end
+ def changed_in_place?(raw_old_value, value)
+ return false if value.nil?
+ subtype.changed_in_place?(raw_old_value, coder.dump(value))
+ end
+
def accessor
ActiveRecord::Store::IndifferentHashAccessor
end