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-rw-r--r--activerecord/lib/active_record.rb1
-rw-r--r--activerecord/lib/active_record/attribute_methods.rb32
-rw-r--r--activerecord/lib/active_record/attribute_methods/dirty.rb12
-rw-r--r--activerecord/lib/active_record/base.rb2
-rw-r--r--activerecord/lib/active_record/connection_adapters/connection_specification.rb70
-rw-r--r--activerecord/lib/active_record/connection_handling.rb41
-rw-r--r--activerecord/lib/active_record/core.rb22
-rw-r--r--activerecord/lib/active_record/database_configurations.rb185
-rw-r--r--activerecord/lib/active_record/database_configurations/database_config.rb29
-rw-r--r--activerecord/lib/active_record/database_configurations/hash_config.rb36
-rw-r--r--activerecord/lib/active_record/database_configurations/url_config.rb60
-rw-r--r--activerecord/lib/active_record/persistence.rb9
-rw-r--r--activerecord/lib/active_record/railties/databases.rake42
-rw-r--r--activerecord/lib/active_record/reflection.rb20
-rw-r--r--activerecord/lib/active_record/relation.rb8
-rw-r--r--activerecord/lib/active_record/relation/calculations.rb2
-rw-r--r--activerecord/lib/active_record/relation/query_methods.rb4
-rw-r--r--activerecord/lib/active_record/result.rb4
-rw-r--r--activerecord/lib/active_record/sanitization.rb4
-rw-r--r--activerecord/lib/active_record/tasks/database_tasks.rb32
-rw-r--r--activerecord/lib/active_record/test_databases.rb27
-rw-r--r--activerecord/lib/rails/generators/active_record/migration.rb4
-rw-r--r--activerecord/lib/rails/generators/active_record/migration/migration_generator.rb1
23 files changed, 435 insertions, 212 deletions
diff --git a/activerecord/lib/active_record.rb b/activerecord/lib/active_record.rb
index d198466dbf..d43378c64f 100644
--- a/activerecord/lib/active_record.rb
+++ b/activerecord/lib/active_record.rb
@@ -40,7 +40,6 @@ module ActiveRecord
autoload :Core
autoload :ConnectionHandling
autoload :CounterCache
- autoload :DatabaseConfigurations
autoload :DynamicMatchers
autoload :Enum
autoload :InternalMetadata
diff --git a/activerecord/lib/active_record/attribute_methods.rb b/activerecord/lib/active_record/attribute_methods.rb
index e4b8b1a330..701f19a6ae 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 allocate new name parent superclass)
+ RESTRICTED_CLASS_METHODS = %w(private public protected allocate new name parent superclass)
class GeneratedAttributeMethods < Module #:nodoc:
include Mutex_m
@@ -123,7 +123,7 @@ module ActiveRecord
# A class method is 'dangerous' if it is already (re)defined by Active Record, but
# not by any ancestors. (So 'puts' is not dangerous but 'new' is.)
def dangerous_class_method?(method_name)
- BLACKLISTED_CLASS_METHODS.include?(method_name.to_s) || class_method_defined_within?(method_name, Base)
+ RESTRICTED_CLASS_METHODS.include?(method_name.to_s) || class_method_defined_within?(method_name, Base)
end
def class_method_defined_within?(name, klass, superklass = klass.superclass) # :nodoc:
@@ -167,12 +167,14 @@ module ActiveRecord
end
end
- # Regexp whitelist. Matches the following:
+ # Regexp for column names (with or without a table name prefix). Matches
+ # the following:
# "#{table_name}.#{column_name}"
# "#{column_name}"
- COLUMN_NAME_WHITELIST = /\A(?:\w+\.)?\w+\z/i
+ COLUMN_NAME = /\A(?:\w+\.)?\w+\z/i
- # Regexp whitelist. Matches the following:
+ # Regexp for column names with order (with or without a table name
+ # prefix, with or without various order modifiers). Matches the following:
# "#{table_name}.#{column_name}"
# "#{table_name}.#{column_name} #{direction}"
# "#{table_name}.#{column_name} #{direction} NULLS FIRST"
@@ -181,7 +183,7 @@ module ActiveRecord
# "#{column_name} #{direction}"
# "#{column_name} #{direction} NULLS FIRST"
# "#{column_name} NULLS LAST"
- COLUMN_NAME_ORDER_WHITELIST = /
+ COLUMN_NAME_WITH_ORDER = /
\A
(?:\w+\.)?
\w+
@@ -190,12 +192,12 @@ module ActiveRecord
\z
/ix
- def enforce_raw_sql_whitelist(args, whitelist: COLUMN_NAME_WHITELIST) # :nodoc:
+ def disallow_raw_sql!(args, permit: COLUMN_NAME) # :nodoc:
unexpected = args.reject do |arg|
arg.kind_of?(Arel::Node) ||
arg.is_a?(Arel::Nodes::SqlLiteral) ||
arg.is_a?(Arel::Attributes::Attribute) ||
- arg.to_s.split(/\s*,\s*/).all? { |part| whitelist.match?(part) }
+ arg.to_s.split(/\s*,\s*/).all? { |part| permit.match?(part) }
end
return if unexpected.none?
@@ -449,14 +451,6 @@ module ActiveRecord
defined?(@attributes) && @attributes.key?(attr_name)
end
- def attributes_with_values_for_create(attribute_names)
- attributes_with_values(attributes_for_create(attribute_names))
- end
-
- def attributes_with_values_for_update(attribute_names)
- attributes_with_values(attributes_for_update(attribute_names))
- end
-
def attributes_with_values(attribute_names)
attribute_names.each_with_object({}) do |name, attrs|
attrs[name] = _read_attribute(name)
@@ -465,7 +459,8 @@ module ActiveRecord
# Filters the primary keys and readonly attributes from the attribute names.
def attributes_for_update(attribute_names)
- attribute_names.reject do |name|
+ attribute_names &= self.class.column_names
+ attribute_names.delete_if do |name|
readonly_attribute?(name)
end
end
@@ -473,7 +468,8 @@ module ActiveRecord
# Filters out the primary keys, from the attribute names, when the primary
# key is to be generated (e.g. the id attribute has no value).
def attributes_for_create(attribute_names)
- attribute_names.reject do |name|
+ attribute_names &= self.class.column_names
+ attribute_names.delete_if do |name|
pk_attribute?(name) && id.nil?
end
end
diff --git a/activerecord/lib/active_record/attribute_methods/dirty.rb b/activerecord/lib/active_record/attribute_methods/dirty.rb
index bc25837fab..ebc2252c50 100644
--- a/activerecord/lib/active_record/attribute_methods/dirty.rb
+++ b/activerecord/lib/active_record/attribute_methods/dirty.rb
@@ -164,20 +164,20 @@ module ActiveRecord
result
end
- def _update_record(*)
- affected_rows = partial_writes? ? super(keys_for_partial_write) : super
+ def _update_record(attribute_names = attribute_names_for_partial_writes)
+ affected_rows = super
changes_applied
affected_rows
end
- def _create_record(*)
- id = partial_writes? ? super(keys_for_partial_write) : super
+ def _create_record(attribute_names = attribute_names_for_partial_writes)
+ id = super
changes_applied
id
end
- def keys_for_partial_write
- changed_attribute_names_to_save & self.class.column_names
+ def attribute_names_for_partial_writes
+ partial_writes? ? changed_attribute_names_to_save : attribute_names
end
end
end
diff --git a/activerecord/lib/active_record/base.rb b/activerecord/lib/active_record/base.rb
index 5169f312f5..db097cb930 100644
--- a/activerecord/lib/active_record/base.rb
+++ b/activerecord/lib/active_record/base.rb
@@ -22,6 +22,7 @@ require "active_record/explain_subscriber"
require "active_record/relation/delegation"
require "active_record/attributes"
require "active_record/type_caster"
+require "active_record/database_configurations"
module ActiveRecord #:nodoc:
# = Active Record
@@ -291,7 +292,6 @@ module ActiveRecord #:nodoc:
extend Aggregations::ClassMethods
include Core
- include DatabaseConfigurations
include Persistence
include ReadonlyAttributes
include ModelSchema
diff --git a/activerecord/lib/active_record/connection_adapters/connection_specification.rb b/activerecord/lib/active_record/connection_adapters/connection_specification.rb
index 204691006c..2e7a78215a 100644
--- a/activerecord/lib/active_record/connection_adapters/connection_specification.rb
+++ b/activerecord/lib/active_record/connection_adapters/connection_specification.rb
@@ -114,8 +114,7 @@ module ActiveRecord
class Resolver # :nodoc:
attr_reader :configurations
- # Accepts a hash two layers deep, keys on the first layer represent
- # environments such as "production". Keys must be strings.
+ # Accepts a list of db config objects.
def initialize(configurations)
@configurations = configurations
end
@@ -136,33 +135,14 @@ module ActiveRecord
# Resolver.new(configurations).resolve(:production)
# # => { "host" => "localhost", "database" => "foo", "adapter" => "postgresql" }
#
- def resolve(config)
- if config
- resolve_connection config
- elsif env = ActiveRecord::ConnectionHandling::RAILS_ENV.call
- resolve_symbol_connection env.to_sym
+ def resolve(config_or_env, pool_name = nil)
+ if config_or_env
+ resolve_connection config_or_env, pool_name
else
raise AdapterNotSpecified
end
end
- # Expands each key in @configurations hash into fully resolved hash
- def resolve_all
- config = configurations.dup
-
- if env = ActiveRecord::ConnectionHandling::DEFAULT_ENV.call
- env_config = config[env] if config[env].is_a?(Hash) && !(config[env].key?("adapter") || config[env].key?("url"))
- end
-
- config.merge! env_config if env_config
-
- config.each do |key, value|
- config[key] = resolve(value) if value
- end
-
- config
- end
-
# Returns an instance of ConnectionSpecification for a given adapter.
# Accepts a hash one layer deep that contains all connection information.
#
@@ -176,7 +156,9 @@ module ActiveRecord
# # => { "host" => "localhost", "database" => "foo", "adapter" => "sqlite3" }
#
def spec(config)
- spec = resolve(config).symbolize_keys
+ pool_name = config if config.is_a?(Symbol)
+
+ spec = resolve(config, pool_name).symbolize_keys
raise(AdapterNotSpecified, "database configuration does not specify adapter") unless spec.key?(:adapter)
@@ -211,7 +193,6 @@ module ActiveRecord
end
private
-
# Returns fully resolved connection, accepts hash, string or symbol.
# Always returns a hash.
#
@@ -232,29 +213,42 @@ module ActiveRecord
# Resolver.new({}).resolve_connection("postgresql://localhost/foo")
# # => { "host" => "localhost", "database" => "foo", "adapter" => "postgresql" }
#
- def resolve_connection(spec)
- case spec
+ def resolve_connection(config_or_env, pool_name = nil)
+ case config_or_env
when Symbol
- resolve_symbol_connection spec
+ resolve_symbol_connection config_or_env, pool_name
when String
- resolve_url_connection spec
+ resolve_url_connection config_or_env
when Hash
- resolve_hash_connection spec
+ resolve_hash_connection config_or_env
+ else
+ resolve_connection config_or_env
end
end
- # Takes the environment such as +:production+ or +:development+.
+ # Takes the environment such as +:production+ or +:development+ and a
+ # pool name the corresponds to the name given by the connection pool
+ # to the connection. That pool name is merged into the hash with the
+ # name key.
+ #
# This requires that the @configurations was initialized with a key that
# matches.
#
- # Resolver.new("production" => {}).resolve_symbol_connection(:production)
- # # => {}
+ # configurations = #<ActiveRecord::DatabaseConfigurations:0x00007fd9fdace3e0
+ # @configurations=[
+ # #<ActiveRecord::DatabaseConfigurations::HashConfig:0x00007fd9fdace250
+ # @env_name="production", @spec_name="primary", @config={"database"=>"my_db"}>
+ # ]>
#
- def resolve_symbol_connection(spec)
- if config = configurations[spec.to_s]
- resolve_connection(config).merge("name" => spec.to_s)
+ # Resolver.new(configurations).resolve_symbol_connection(:production, "primary")
+ # # => { "database" => "my_db" }
+ def resolve_symbol_connection(env_name, pool_name)
+ db_config = configurations.find_db_config(env_name)
+
+ if db_config
+ resolve_connection(db_config.config).merge("name" => pool_name.to_s)
else
- raise(AdapterNotSpecified, "'#{spec}' database is not configured. Available: #{configurations.keys.inspect}")
+ raise(AdapterNotSpecified, "'#{env_name}' database is not configured. Available: #{configurations.configurations.map(&:env_name).join(", ")}")
end
end
diff --git a/activerecord/lib/active_record/connection_handling.rb b/activerecord/lib/active_record/connection_handling.rb
index ee0e651912..18114f9e1c 100644
--- a/activerecord/lib/active_record/connection_handling.rb
+++ b/activerecord/lib/active_record/connection_handling.rb
@@ -46,45 +46,18 @@ module ActiveRecord
#
# The exceptions AdapterNotSpecified, AdapterNotFound and +ArgumentError+
# may be returned on an error.
- def establish_connection(config = nil)
+ def establish_connection(config_or_env = nil)
raise "Anonymous class is not allowed." unless name
- config ||= DEFAULT_ENV.call.to_sym
- spec_name = self == Base ? "primary" : name
- self.connection_specification_name = spec_name
+ config_or_env ||= DEFAULT_ENV.call.to_sym
+ pool_name = self == Base ? "primary" : name
+ self.connection_specification_name = pool_name
resolver = ConnectionAdapters::ConnectionSpecification::Resolver.new(Base.configurations)
- spec = resolver.resolve(config).symbolize_keys
- spec[:name] = spec_name
+ config_hash = resolver.resolve(config_or_env, pool_name).symbolize_keys
+ config_hash[:name] = pool_name
- # use the primary config if a config is not passed in and
- # it's a three tier config
- spec = spec[spec_name.to_sym] if spec[spec_name.to_sym]
-
- connection_handler.establish_connection(spec)
- end
-
- class MergeAndResolveDefaultUrlConfig # :nodoc:
- def initialize(raw_configurations)
- @raw_config = raw_configurations.dup
- @env = DEFAULT_ENV.call.to_s
- end
-
- # Returns fully resolved connection hashes.
- # Merges connection information from `ENV['DATABASE_URL']` if available.
- def resolve
- ConnectionAdapters::ConnectionSpecification::Resolver.new(config).resolve_all
- end
-
- private
- def config
- @raw_config.dup.tap do |cfg|
- if url = ENV["DATABASE_URL"]
- cfg[@env] ||= {}
- cfg[@env]["url"] ||= url
- end
- end
- end
+ connection_handler.establish_connection(config_hash)
end
# Returns the connection currently associated with the class. This can
diff --git a/activerecord/lib/active_record/core.rb b/activerecord/lib/active_record/core.rb
index c983bc0d93..9ec6ba14fd 100644
--- a/activerecord/lib/active_record/core.rb
+++ b/activerecord/lib/active_record/core.rb
@@ -26,7 +26,7 @@ module ActiveRecord
##
# Contains the database configuration - as is typically stored in config/database.yml -
- # as a Hash.
+ # as an ActiveRecord::DatabaseConfigurations object.
#
# For example, the following database.yml...
#
@@ -40,22 +40,18 @@ module ActiveRecord
#
# ...would result in ActiveRecord::Base.configurations to look like this:
#
- # {
- # 'development' => {
- # 'adapter' => 'sqlite3',
- # 'database' => 'db/development.sqlite3'
- # },
- # 'production' => {
- # 'adapter' => 'sqlite3',
- # 'database' => 'db/production.sqlite3'
- # }
- # }
+ # #<ActiveRecord::DatabaseConfigurations:0x00007fd1acbdf800 @configurations=[
+ # #<ActiveRecord::DatabaseConfigurations::HashConfig:0x00007fd1acbded10 @env_name="development",
+ # @spec_name="primary", @config={"adapter"=>"sqlite3", "database"=>"db/development.sqlite3"}>,
+ # #<ActiveRecord::DatabaseConfigurations::HashConfig:0x00007fd1acbdea90 @env_name="production",
+ # @spec_name="primary", @config={"adapter"=>"mysql2", "database"=>"db/production.sqlite3"}>
+ # ]>
def self.configurations=(config)
- @@configurations = ActiveRecord::ConnectionHandling::MergeAndResolveDefaultUrlConfig.new(config).resolve
+ @@configurations = ActiveRecord::DatabaseConfigurations.new(config)
end
self.configurations = {}
- # Returns fully resolved configurations hash
+ # Returns fully resolved ActiveRecord::DatabaseConfigurations object
def self.configurations
@@configurations
end
diff --git a/activerecord/lib/active_record/database_configurations.rb b/activerecord/lib/active_record/database_configurations.rb
index ffeed45030..14b7cb040f 100644
--- a/activerecord/lib/active_record/database_configurations.rb
+++ b/activerecord/lib/active_record/database_configurations.rb
@@ -1,63 +1,168 @@
# frozen_string_literal: true
+require "active_record/database_configurations/database_config"
+require "active_record/database_configurations/hash_config"
+require "active_record/database_configurations/url_config"
+
module ActiveRecord
- module DatabaseConfigurations # :nodoc:
- class DatabaseConfig
- attr_reader :env_name, :spec_name, :config
+ # ActiveRecord::DatabaseConfigurations returns an array of DatabaseConfig
+ # objects (either a HashConfig or UrlConfig) that are constructed from the
+ # application's database configuration hash or url string.
+ class DatabaseConfigurations
+ attr_reader :configurations
+
+ def initialize(configurations = {})
+ @configurations = build_configs(configurations)
+ end
+
+ # Collects the configs for the environment and optionally the specification
+ # name passed in.
+ #
+ # If a spec name is provided a single DatabaseConfiguration object will be
+ # returned, otherwise an array of DatabaseConfiguration objects will be
+ # returned that corresponds with the environment requested.
+ def configs_for(env = nil, spec = nil, &blk)
+ configs = env_with_configs(env)
- def initialize(env_name, spec_name, config)
- @env_name = env_name
- @spec_name = spec_name
- @config = config
+ if spec
+ configs.find do |db_config|
+ db_config.spec_name == spec
+ end
+ else
+ configs
end
end
- # Selects the config for the specified environment and specification name
+ # Returns the config hash that corresponds with the environment
+ #
+ # If the application has multiple databases `default_hash` will
+ # the first config hash for the environment.
#
- # For example if passed :development, and :animals it will select the database
- # under the :development and :animals configuration level
- def self.config_for_env_and_spec(environment, specification_name, configs = ActiveRecord::Base.configurations) # :nodoc:
- configs_for(environment, configs).find do |db_config|
- db_config.spec_name == specification_name
+ # { database: "my_db", adapter: "mysql2" }
+ def default_hash(env = ActiveRecord::ConnectionHandling::DEFAULT_ENV.call.to_s)
+ default = find_db_config(env)
+ default.config if default
+ end
+ alias :[] :default_hash
+
+ # Returns a single DatabaseConfig object based on the requested environment.
+ #
+ # If the application has multiple databases `select_db_config` will return
+ # the first DatabaseConfig for the environment.
+ def find_db_config(env)
+ configurations.find do |db_config|
+ db_config.env_name == env.to_s ||
+ (db_config.for_current_env? && db_config.spec_name == env.to_s)
end
end
- # Collects the configs for the environment passed in.
+ # Returns the DatabaseConfig object as a Hash.
+ def to_h
+ configs = configurations.reverse.inject({}) do |memo, db_config|
+ memo.merge(db_config.to_legacy_hash)
+ end
+
+ Hash[configs.to_a.reverse]
+ end
+
+ # Checks if the application's configurations are empty.
#
- # If a block is given returns the specification name and configuration
- # otherwise returns an array of DatabaseConfig structs for the environment.
- def self.configs_for(env, configs = ActiveRecord::Base.configurations, &blk) # :nodoc:
- env_with_configs = db_configs(configs).select do |db_config|
- db_config.env_name == env
+ # Aliased to blank?
+ def empty?
+ configurations.empty?
+ end
+ alias :blank? :empty?
+
+ private
+ def env_with_configs(env = nil)
+ if env
+ configurations.select { |db_config| db_config.env_name == env }
+ else
+ configurations
+ end
+ end
+
+ def build_configs(configs)
+ return configs.configurations if configs.is_a?(DatabaseConfigurations)
+
+ build_db_config = configs.each_pair.flat_map do |env_name, config|
+ walk_configs(env_name, "primary", config)
+ end.compact
+
+ if url = ENV["DATABASE_URL"]
+ build_url_config(url, build_db_config)
+ else
+ build_db_config
+ end
end
- if block_given?
- env_with_configs.each do |env_with_config|
- yield env_with_config.spec_name, env_with_config.config
+ def walk_configs(env_name, spec_name, config)
+ case config
+ when String
+ build_db_config_from_string(env_name, spec_name, config)
+ when Hash
+ build_db_config_from_hash(env_name, spec_name, config)
end
- else
- env_with_configs
end
- end
- # Given an env, spec and config creates DatabaseConfig structs with
- # each attribute set.
- def self.walk_configs(env_name, spec_name, config) # :nodoc:
- if config["database"] || config["url"] || config["adapter"]
- DatabaseConfig.new(env_name, spec_name, config)
- else
- config.each_pair.map do |sub_spec_name, sub_config|
- walk_configs(env_name, sub_spec_name, sub_config)
+ def build_db_config_from_string(env_name, spec_name, config)
+ begin
+ url = config
+ uri = URI.parse(url)
+ if uri.try(:scheme)
+ ActiveRecord::DatabaseConfigurations::UrlConfig.new(env_name, spec_name, url)
+ end
+ rescue URI::InvalidURIError
+ ActiveRecord::DatabaseConfigurations::HashConfig.new(env_name, spec_name, config)
end
end
- end
- # Walks all the configs passed in and returns an array
- # of DatabaseConfig structs for each configuration.
- def self.db_configs(configs = ActiveRecord::Base.configurations) # :nodoc:
- configs.each_pair.flat_map do |env_name, config|
- walk_configs(env_name, "primary", config)
+ def build_db_config_from_hash(env_name, spec_name, config)
+ if url = config["url"]
+ config_without_url = config.dup
+ config_without_url.delete "url"
+ ActiveRecord::DatabaseConfigurations::UrlConfig.new(env_name, spec_name, url, config_without_url)
+ elsif config["database"] || (config.size == 1 && config.values.all? { |v| v.is_a? String })
+ ActiveRecord::DatabaseConfigurations::HashConfig.new(env_name, spec_name, config)
+ else
+ config.each_pair.map do |sub_spec_name, sub_config|
+ walk_configs(env_name, sub_spec_name, sub_config)
+ end
+ end
+ end
+
+ def build_url_config(url, configs)
+ env = ActiveRecord::ConnectionHandling::DEFAULT_ENV.call.to_s
+
+ if original_config = configs.find(&:for_current_env?)
+ if original_config.url_config?
+ configs
+ else
+ configs.map do |config|
+ ActiveRecord::DatabaseConfigurations::UrlConfig.new(env, config.spec_name, url, config.config)
+ end
+ end
+ else
+ configs + [ActiveRecord::DatabaseConfigurations::UrlConfig.new(env, "primary", url)]
+ end
+ end
+
+ def method_missing(method, *args, &blk)
+ if Hash.method_defined?(method)
+ ActiveSupport::Deprecation.warn \
+ "Returning a hash from ActiveRecord::Base.configurations is deprecated. Therefore calling `#{method}` on the hash is also deprecated. Please switch to using the `configs_for` method instead to collect and iterate over database configurations."
+ end
+
+ case method
+ when :each, :first
+ configurations.send(method, *args, &blk)
+ when :fetch
+ configs_for(args.first)
+ when :values
+ configurations.map(&:config)
+ else
+ super
+ end
end
- end
end
end
diff --git a/activerecord/lib/active_record/database_configurations/database_config.rb b/activerecord/lib/active_record/database_configurations/database_config.rb
new file mode 100644
index 0000000000..4a58115cd5
--- /dev/null
+++ b/activerecord/lib/active_record/database_configurations/database_config.rb
@@ -0,0 +1,29 @@
+# frozen_string_literal: true
+
+module ActiveRecord
+ class DatabaseConfigurations
+ # ActiveRecord::Base.configurations will return either a HashConfig or
+ # UrlConfig respectively. It will never return a DatabaseConfig object,
+ # as this is the parent class for the types of database configuration objects.
+ class DatabaseConfig # :nodoc:
+ attr_reader :env_name, :spec_name
+
+ def initialize(env_name, spec_name)
+ @env_name = env_name
+ @spec_name = spec_name
+ end
+
+ def url_config?
+ false
+ end
+
+ def to_legacy_hash
+ { env_name => config }
+ end
+
+ def for_current_env?
+ env_name == ActiveRecord::ConnectionHandling::DEFAULT_ENV.call
+ end
+ end
+ end
+end
diff --git a/activerecord/lib/active_record/database_configurations/hash_config.rb b/activerecord/lib/active_record/database_configurations/hash_config.rb
new file mode 100644
index 0000000000..2ee218c730
--- /dev/null
+++ b/activerecord/lib/active_record/database_configurations/hash_config.rb
@@ -0,0 +1,36 @@
+# frozen_string_literal: true
+
+module ActiveRecord
+ class DatabaseConfigurations
+ # A HashConfig object is created for each database configuration entry that
+ # is created from a hash.
+ #
+ # A hash config:
+ #
+ # { "development" => { "database" => "db_name" } }
+ #
+ # Becomes:
+ #
+ # #<ActiveRecord::DatabaseConfigurations::HashConfig:0x00007fd1acbded10
+ # @env_name="development", @spec_name="primary", @config={"db_name"}>
+ #
+ # Options are:
+ #
+ # <tt>:env_name</tt> - The Rails environment, ie "development"
+ # <tt>:spec_name</tt> - The specification name. In a standard two-tier
+ # database configuration this will default to "primary". In a multiple
+ # database three-tier database configuration this corresponds to the name
+ # used in the second tier, for example "primary_readonly".
+ # <tt>:config</tt> - The config hash. This is the hash that contains the
+ # database adapter, name, and other important information for database
+ # connections.
+ class HashConfig < DatabaseConfig
+ attr_reader :config
+
+ def initialize(env_name, spec_name, config)
+ super(env_name, spec_name)
+ @config = config
+ end
+ end
+ end
+end
diff --git a/activerecord/lib/active_record/database_configurations/url_config.rb b/activerecord/lib/active_record/database_configurations/url_config.rb
new file mode 100644
index 0000000000..c3d9798c37
--- /dev/null
+++ b/activerecord/lib/active_record/database_configurations/url_config.rb
@@ -0,0 +1,60 @@
+# frozen_string_literal: true
+
+module ActiveRecord
+ class DatabaseConfigurations
+ # A UrlConfig object is created for each database configuration
+ # entry that is created from a URL. This can either be a URL string
+ # or a hash with a URL in place of the config hash.
+ #
+ # A URL config:
+ #
+ # postgres://localhost/foo
+ #
+ # Becomes:
+ #
+ # #<ActiveRecord::DatabaseConfigurations::UrlConfig:0x00007fdc3238f340
+ # @env_name="default_env", @spec_name="primary",
+ # @config={"adapter"=>"postgresql", "database"=>"foo", "host"=>"localhost"},
+ # @url="postgres://localhost/foo">
+ #
+ # Options are:
+ #
+ # <tt>:env_name</tt> - The Rails environment, ie "development"
+ # <tt>:spec_name</tt> - The specification name. In a standard two-tier
+ # database configuration this will default to "primary". In a multiple
+ # database three-tier database configuration this corresponds to the name
+ # used in the second tier, for example "primary_readonly".
+ # <tt>:url</tt> - The database URL.
+ # <tt>:config</tt> - The config hash. This is the hash that contains the
+ # database adapter, name, and other important information for database
+ # connections.
+ class UrlConfig < DatabaseConfig
+ attr_reader :url, :config
+
+ def initialize(env_name, spec_name, url, config = {})
+ super(env_name, spec_name)
+ @config = build_config(config, url)
+ @url = url
+ end
+
+ def url_config? # :nodoc:
+ true
+ end
+
+ private
+ def build_config(original_config, url)
+ if /^jdbc:/.match?(url)
+ hash = { "url" => url }
+ else
+ hash = ActiveRecord::ConnectionAdapters::ConnectionSpecification::ConnectionUrlResolver.new(url).to_hash
+ end
+
+ if original_config[env_name]
+ original_config[env_name].merge(hash)
+ else
+ original_config.merge(hash)
+ end
+ end
+ end
+ end
+end
diff --git a/activerecord/lib/active_record/persistence.rb b/activerecord/lib/active_record/persistence.rb
index 05963e5546..24af56cf0b 100644
--- a/activerecord/lib/active_record/persistence.rb
+++ b/activerecord/lib/active_record/persistence.rb
@@ -718,7 +718,6 @@ module ActiveRecord
# Updates the associated record with values matching those of the instance attributes.
# Returns the number of affected rows.
def _update_record(attribute_names = self.attribute_names)
- attribute_names &= self.class.column_names
attribute_names = attributes_for_update(attribute_names)
if attribute_names.empty?
@@ -737,10 +736,12 @@ module ActiveRecord
# Creates a record with values matching those of the instance attributes
# and returns its id.
def _create_record(attribute_names = self.attribute_names)
- attribute_names &= self.class.column_names
- attributes_values = attributes_with_values_for_create(attribute_names)
+ attribute_names = attributes_for_create(attribute_names)
+
+ new_id = self.class._insert_record(
+ attributes_with_values(attribute_names)
+ )
- new_id = self.class._insert_record(attributes_values)
self.id ||= new_id if self.class.primary_key
@new_record = false
diff --git a/activerecord/lib/active_record/railties/databases.rake b/activerecord/lib/active_record/railties/databases.rake
index 8b7d18fb3d..15b0459422 100644
--- a/activerecord/lib/active_record/railties/databases.rake
+++ b/activerecord/lib/active_record/railties/databases.rake
@@ -26,7 +26,7 @@ db_namespace = namespace :db do
ActiveRecord::Tasks::DatabaseTasks.for_each do |spec_name|
desc "Create #{spec_name} database for current environment"
task spec_name => :load_config do
- db_config = ActiveRecord::DatabaseConfigurations.config_for_env_and_spec(Rails.env, spec_name)
+ db_config = ActiveRecord::Base.configurations.configs_for(Rails.env, spec_name)
ActiveRecord::Tasks::DatabaseTasks.create(db_config.config)
end
end
@@ -45,7 +45,7 @@ db_namespace = namespace :db do
ActiveRecord::Tasks::DatabaseTasks.for_each do |spec_name|
desc "Drop #{spec_name} database for current environment"
task spec_name => [:load_config, :check_protected_environments] do
- db_config = ActiveRecord::DatabaseConfigurations.config_for_env_and_spec(Rails.env, spec_name)
+ db_config = ActiveRecord::Base.configurations.configs_for(Rails.env, spec_name)
ActiveRecord::Tasks::DatabaseTasks.drop(db_config.config)
end
end
@@ -73,8 +73,8 @@ db_namespace = namespace :db do
desc "Migrate the database (options: VERSION=x, VERBOSE=false, SCOPE=blog)."
task migrate: :load_config do
- ActiveRecord::DatabaseConfigurations.configs_for(Rails.env) do |spec_name, config|
- ActiveRecord::Base.establish_connection(config)
+ ActiveRecord::Base.configurations.configs_for(Rails.env).each do |db_config|
+ ActiveRecord::Base.establish_connection(db_config.config)
ActiveRecord::Tasks::DatabaseTasks.migrate
end
db_namespace["_dump"].invoke
@@ -99,7 +99,7 @@ db_namespace = namespace :db do
ActiveRecord::Tasks::DatabaseTasks.for_each do |spec_name|
desc "Migrate #{spec_name} database for current environment"
task spec_name => :load_config do
- db_config = ActiveRecord::DatabaseConfigurations.config_for_env_and_spec(Rails.env, spec_name)
+ db_config = ActiveRecord::Base.configurations.configs_for(Rails.env, spec_name)
ActiveRecord::Base.establish_connection(db_config.config)
ActiveRecord::Tasks::DatabaseTasks.migrate
end
@@ -274,11 +274,10 @@ db_namespace = namespace :db do
desc "Creates a db/schema.rb file that is portable against any DB supported by Active Record"
task dump: :load_config do
require "active_record/schema_dumper"
-
- ActiveRecord::DatabaseConfigurations.configs_for(Rails.env) do |spec_name, config|
- filename = ActiveRecord::Tasks::DatabaseTasks.dump_filename(spec_name, :ruby)
+ ActiveRecord::Base.configurations.configs_for(Rails.env).each do |db_config|
+ filename = ActiveRecord::Tasks::DatabaseTasks.dump_filename(db_config.spec_name, :ruby)
File.open(filename, "w:utf-8") do |file|
- ActiveRecord::Base.establish_connection(config)
+ ActiveRecord::Base.establish_connection(db_config.config)
ActiveRecord::SchemaDumper.dump(ActiveRecord::Base.connection, file)
end
end
@@ -314,11 +313,10 @@ db_namespace = namespace :db do
namespace :structure do
desc "Dumps the database structure to db/structure.sql. Specify another file with SCHEMA=db/my_structure.sql"
task dump: :load_config do
- ActiveRecord::DatabaseConfigurations.configs_for(Rails.env) do |spec_name, config|
- ActiveRecord::Base.establish_connection(config)
- filename = ActiveRecord::Tasks::DatabaseTasks.dump_filename(spec_name, :sql)
- ActiveRecord::Tasks::DatabaseTasks.structure_dump(config, filename)
-
+ ActiveRecord::Base.configurations.configs_for(Rails.env).each do |db_config|
+ ActiveRecord::Base.establish_connection(db_config.config)
+ filename = ActiveRecord::Tasks::DatabaseTasks.dump_filename(db_config.spec_name, :sql)
+ ActiveRecord::Tasks::DatabaseTasks.structure_dump(db_config.config, filename)
if ActiveRecord::SchemaMigration.table_exists?
File.open(filename, "a") do |f|
f.puts ActiveRecord::Base.connection.dump_schema_information
@@ -356,22 +354,30 @@ db_namespace = namespace :db do
begin
should_reconnect = ActiveRecord::Base.connection_pool.active_connection?
ActiveRecord::Schema.verbose = false
- ActiveRecord::Tasks::DatabaseTasks.load_schema ActiveRecord::Base.configurations["test"], :ruby, ENV["SCHEMA"], "test"
+ ActiveRecord::Base.configurations.configs_for("test").each do |db_config|
+ filename = ActiveRecord::Tasks::DatabaseTasks.dump_filename(db_config.spec_name, :ruby)
+ ActiveRecord::Tasks::DatabaseTasks.load_schema(db_config.config, :ruby, filename, "test")
+ end
ensure
if should_reconnect
- ActiveRecord::Base.establish_connection(ActiveRecord::Base.configurations[ActiveRecord::Tasks::DatabaseTasks.env])
+ ActiveRecord::Base.establish_connection(ActiveRecord::Base.configurations.default_hash(ActiveRecord::Tasks::DatabaseTasks.env))
end
end
end
# desc "Recreate the test database from an existent structure.sql file"
task load_structure: %w(db:test:purge) do
- ActiveRecord::Tasks::DatabaseTasks.load_schema ActiveRecord::Base.configurations["test"], :sql, ENV["SCHEMA"], "test"
+ ActiveRecord::Base.configurations.configs_for("test").each do |db_config|
+ filename = ActiveRecord::Tasks::DatabaseTasks.dump_filename(db_config.spec_name, :sql)
+ ActiveRecord::Tasks::DatabaseTasks.load_schema(db_config.config, :sql, filename, "test")
+ end
end
# desc "Empty the test database"
task purge: %w(load_config check_protected_environments) do
- ActiveRecord::Tasks::DatabaseTasks.purge ActiveRecord::Base.configurations["test"]
+ ActiveRecord::Base.configurations.configs_for("test").each do |db_config|
+ ActiveRecord::Tasks::DatabaseTasks.purge(db_config.config)
+ end
end
# desc 'Load the test schema'
diff --git a/activerecord/lib/active_record/reflection.rb b/activerecord/lib/active_record/reflection.rb
index 6d2f75a3ae..b2110f727c 100644
--- a/activerecord/lib/active_record/reflection.rb
+++ b/activerecord/lib/active_record/reflection.rb
@@ -612,9 +612,21 @@ module ActiveRecord
# returns either +nil+ or the inverse association name that it finds.
def automatic_inverse_of
- if can_find_inverse_of_automatically?(self)
- inverse_name = ActiveSupport::Inflector.underscore(options[:as] || active_record.name.demodulize).to_sym
+ return unless can_find_inverse_of_automatically?(self)
+ inverse_name_candidates =
+ if options[:as]
+ [options[:as]]
+ else
+ active_record_name = active_record.name.demodulize
+ [active_record_name, ActiveSupport::Inflector.pluralize(active_record_name)]
+ end
+
+ inverse_name_candidates.map! do |candidate|
+ ActiveSupport::Inflector.underscore(candidate).to_sym
+ end
+
+ inverse_name_candidates.detect do |inverse_name|
begin
reflection = klass._reflect_on_association(inverse_name)
rescue NameError
@@ -623,9 +635,7 @@ module ActiveRecord
reflection = false
end
- if valid_inverse_reflection?(reflection)
- return inverse_name
- end
+ valid_inverse_reflection?(reflection)
end
end
diff --git a/activerecord/lib/active_record/relation.rb b/activerecord/lib/active_record/relation.rb
index 2d3e1eaa08..29a3ceab7d 100644
--- a/activerecord/lib/active_record/relation.rb
+++ b/activerecord/lib/active_record/relation.rb
@@ -375,8 +375,12 @@ module ActiveRecord
@klass.connection.update stmt, "#{@klass} Update All"
end
- def update(attributes) # :nodoc:
- each { |record| record.update(attributes) }
+ def update(id = :all, attributes) # :nodoc:
+ if id == :all
+ each { |record| record.update(attributes) }
+ else
+ klass.update(id, attributes)
+ end
end
def update_counters(counters) # :nodoc:
diff --git a/activerecord/lib/active_record/relation/calculations.rb b/activerecord/lib/active_record/relation/calculations.rb
index 40fe39fa9d..0fa5ba2e50 100644
--- a/activerecord/lib/active_record/relation/calculations.rb
+++ b/activerecord/lib/active_record/relation/calculations.rb
@@ -190,7 +190,7 @@ module ActiveRecord
relation = apply_join_dependency
relation.pluck(*column_names)
else
- enforce_raw_sql_whitelist(column_names)
+ disallow_raw_sql!(column_names)
relation = spawn
relation.select_values = column_names.map { |cn|
@klass.has_attribute?(cn) || @klass.attribute_alias?(cn) ? arel_attribute(cn) : cn
diff --git a/activerecord/lib/active_record/relation/query_methods.rb b/activerecord/lib/active_record/relation/query_methods.rb
index 52405f21a1..56497e11cb 100644
--- a/activerecord/lib/active_record/relation/query_methods.rb
+++ b/activerecord/lib/active_record/relation/query_methods.rb
@@ -1133,9 +1133,9 @@ module ActiveRecord
end
order_args.flatten!
- @klass.enforce_raw_sql_whitelist(
+ @klass.disallow_raw_sql!(
order_args.flat_map { |a| a.is_a?(Hash) ? a.keys : a },
- whitelist: AttributeMethods::ClassMethods::COLUMN_NAME_ORDER_WHITELIST
+ permit: AttributeMethods::ClassMethods::COLUMN_NAME_WITH_ORDER
)
validate_order_args(order_args)
diff --git a/activerecord/lib/active_record/result.rb b/activerecord/lib/active_record/result.rb
index 7f1c2fd7eb..3b2556b1c8 100644
--- a/activerecord/lib/active_record/result.rb
+++ b/activerecord/lib/active_record/result.rb
@@ -140,6 +140,8 @@ module ActiveRecord
# We freeze the strings to prevent them getting duped when
# used as keys in ActiveRecord::Base's @attributes hash
columns = @columns.map(&:-@)
+ length = columns.length
+
@rows.map { |row|
# In the past we used Hash[columns.zip(row)]
# though elegant, the verbose way is much more efficient
@@ -148,8 +150,6 @@ module ActiveRecord
hash = {}
index = 0
- length = columns.length
-
while index < length
hash[columns[index]] = row[index]
index += 1
diff --git a/activerecord/lib/active_record/sanitization.rb b/activerecord/lib/active_record/sanitization.rb
index c6c268855e..3485d9e557 100644
--- a/activerecord/lib/active_record/sanitization.rb
+++ b/activerecord/lib/active_record/sanitization.rb
@@ -61,8 +61,8 @@ module ActiveRecord
# # => "id ASC"
def sanitize_sql_for_order(condition)
if condition.is_a?(Array) && condition.first.to_s.include?("?")
- enforce_raw_sql_whitelist([condition.first],
- whitelist: AttributeMethods::ClassMethods::COLUMN_NAME_ORDER_WHITELIST
+ disallow_raw_sql!([condition.first],
+ permit: AttributeMethods::ClassMethods::COLUMN_NAME_WITH_ORDER
)
# Ensure we aren't dealing with a subclass of String that might
diff --git a/activerecord/lib/active_record/tasks/database_tasks.rb b/activerecord/lib/active_record/tasks/database_tasks.rb
index fd36c0abd2..3a1791f9c7 100644
--- a/activerecord/lib/active_record/tasks/database_tasks.rb
+++ b/activerecord/lib/active_record/tasks/database_tasks.rb
@@ -1,5 +1,7 @@
# frozen_string_literal: true
+require "active_record/database_configurations"
+
module ActiveRecord
module Tasks # :nodoc:
class DatabaseAlreadyExists < StandardError; end # :nodoc:
@@ -101,16 +103,21 @@ module ActiveRecord
@env ||= Rails.env
end
+ def spec
+ @spec ||= "primary"
+ end
+
def seed_loader
@seed_loader ||= Rails.application
end
def current_config(options = {})
options.reverse_merge! env: env
+ options[:spec] ||= "primary"
if options.has_key?(:config)
@current_config = options[:config]
else
- @current_config ||= ActiveRecord::Base.configurations[options[:env]]
+ @current_config ||= ActiveRecord::Base.configurations.configs_for(options[:env], options[:spec]).config
end
end
@@ -122,7 +129,7 @@ module ActiveRecord
$stderr.puts "Database '#{configuration['database']}' already exists" if verbose?
rescue Exception => error
$stderr.puts error
- $stderr.puts "Couldn't create database for #{configuration.inspect}"
+ $stderr.puts "Couldn't create '#{configuration['database']}' database. Please check your configuration."
raise
end
@@ -135,8 +142,8 @@ module ActiveRecord
end
def for_each
- databases = Rails.application.config.load_database_yaml
- database_configs = ActiveRecord::DatabaseConfigurations.configs_for(Rails.env, databases)
+ databases = Rails.application.config.database_configuration
+ database_configs = ActiveRecord::DatabaseConfigurations.new(databases).configs_for(Rails.env)
# if this is a single database application we don't want tasks for each primary database
return if database_configs.count == 1
@@ -180,9 +187,11 @@ module ActiveRecord
scope = ENV["SCOPE"]
verbose_was, Migration.verbose = Migration.verbose, verbose?
+
Base.connection.migration_context.migrate(target_version) do |migration|
scope.blank? || scope == migration.scope
end
+
ActiveRecord::Base.clear_cache!
ensure
Migration.verbose = verbose_was
@@ -198,8 +207,8 @@ module ActiveRecord
ENV["VERSION"].to_i if ENV["VERSION"] && !ENV["VERSION"].empty?
end
- def charset_current(environment = env)
- charset ActiveRecord::Base.configurations[environment]
+ def charset_current(environment = env, specification_name = spec)
+ charset ActiveRecord::Base.configurations.configs_for(environment, specification_name).config
end
def charset(*arguments)
@@ -207,8 +216,8 @@ module ActiveRecord
class_for_adapter(configuration["adapter"]).new(*arguments).charset
end
- def collation_current(environment = env)
- collation ActiveRecord::Base.configurations[environment]
+ def collation_current(environment = env, specification_name = spec)
+ collation ActiveRecord::Base.configurations.configs_for(environment, specification_name).config
end
def collation(*arguments)
@@ -342,14 +351,15 @@ module ActiveRecord
environments << "test" if environment == "development"
environments.each do |env|
- ActiveRecord::DatabaseConfigurations.configs_for(env) do |spec_name, configuration|
- yield configuration, spec_name, env
+ ActiveRecord::Base.configurations.configs_for(env).each do |db_config|
+ yield db_config.config, db_config.spec_name, env
end
end
end
def each_local_configuration
- ActiveRecord::Base.configurations.each_value do |configuration|
+ ActiveRecord::Base.configurations.configs_for.each do |db_config|
+ configuration = db_config.config
next unless configuration["database"]
if local_database?(configuration)
diff --git a/activerecord/lib/active_record/test_databases.rb b/activerecord/lib/active_record/test_databases.rb
index 5b4efe22c9..16113eb04e 100644
--- a/activerecord/lib/active_record/test_databases.rb
+++ b/activerecord/lib/active_record/test_databases.rb
@@ -5,31 +5,32 @@ require "active_support/testing/parallelization"
module ActiveRecord
module TestDatabases # :nodoc:
ActiveSupport::Testing::Parallelization.after_fork_hook do |i|
- create_and_load_schema(i, spec_name: Rails.env)
+ create_and_load_schema(i, env_name: Rails.env)
end
- ActiveSupport::Testing::Parallelization.run_cleanup_hook do |_|
- drop(spec_name: Rails.env)
+ ActiveSupport::Testing::Parallelization.run_cleanup_hook do
+ drop(env_name: Rails.env)
end
- def self.create_and_load_schema(i, spec_name:)
+ def self.create_and_load_schema(i, env_name:)
old, ENV["VERBOSE"] = ENV["VERBOSE"], "false"
- connection_spec = ActiveRecord::Base.configurations[spec_name]
-
- connection_spec["database"] += "-#{i}"
- ActiveRecord::Tasks::DatabaseTasks.create(connection_spec)
- ActiveRecord::Tasks::DatabaseTasks.load_schema(connection_spec)
+ ActiveRecord::Base.configurations.configs_for(env_name).each do |db_config|
+ db_config.config["database"] += "-#{i}"
+ ActiveRecord::Tasks::DatabaseTasks.create(db_config.config)
+ ActiveRecord::Tasks::DatabaseTasks.load_schema(db_config.config, ActiveRecord::Base.schema_format, nil, env_name, db_config.spec_name)
+ end
ensure
- ActiveRecord::Base.establish_connection(ActiveRecord::Base.configurations[Rails.env])
+ ActiveRecord::Base.establish_connection(Rails.env.to_sym)
ENV["VERBOSE"] = old
end
- def self.drop(spec_name:)
+ def self.drop(env_name:)
old, ENV["VERBOSE"] = ENV["VERBOSE"], "false"
- connection_spec = ActiveRecord::Base.configurations[spec_name]
- ActiveRecord::Tasks::DatabaseTasks.drop(connection_spec)
+ ActiveRecord::Base.configurations.configs_for(env_name).each do |db_config|
+ ActiveRecord::Tasks::DatabaseTasks.drop(db_config.config)
+ end
ensure
ENV["VERBOSE"] = old
end
diff --git a/activerecord/lib/rails/generators/active_record/migration.rb b/activerecord/lib/rails/generators/active_record/migration.rb
index 4ceb502c5d..4a17082d66 100644
--- a/activerecord/lib/rails/generators/active_record/migration.rb
+++ b/activerecord/lib/rails/generators/active_record/migration.rb
@@ -24,7 +24,9 @@ module ActiveRecord
end
def db_migrate_path
- if defined?(Rails.application) && Rails.application
+ if migrations_paths = options[:migrations_paths]
+ migrations_paths
+ elsif defined?(Rails.application) && Rails.application
Rails.application.config.paths["db/migrate"].to_ary.first
else
"db/migrate"
diff --git a/activerecord/lib/rails/generators/active_record/migration/migration_generator.rb b/activerecord/lib/rails/generators/active_record/migration/migration_generator.rb
index a07b00ef79..281b7afb50 100644
--- a/activerecord/lib/rails/generators/active_record/migration/migration_generator.rb
+++ b/activerecord/lib/rails/generators/active_record/migration/migration_generator.rb
@@ -8,6 +8,7 @@ module ActiveRecord
argument :attributes, type: :array, default: [], banner: "field[:type][:index] field[:type][:index]"
class_option :primary_key_type, type: :string, desc: "The type for primary key"
+ class_option :migrations_paths, type: :string, desc: "The migration path for your generated migrations. If this is not set it will default to db/migrate"
def create_migration_file
set_local_assigns!