diff options
Diffstat (limited to 'activerecord/lib')
40 files changed, 424 insertions, 242 deletions
diff --git a/activerecord/lib/active_record.rb b/activerecord/lib/active_record.rb index f35e1d889e..ab3846ae65 100644 --- a/activerecord/lib/active_record.rb +++ b/activerecord/lib/active_record.rb @@ -40,6 +40,7 @@ module ActiveRecord autoload :CounterCache autoload :DynamicMatchers autoload :Enum + autoload :InternalMetadata autoload :Explain autoload :Inheritance autoload :Integration diff --git a/activerecord/lib/active_record/attribute_methods/time_zone_conversion.rb b/activerecord/lib/active_record/attribute_methods/time_zone_conversion.rb index 45d2c855a5..061628725d 100644 --- a/activerecord/lib/active_record/attribute_methods/time_zone_conversion.rb +++ b/activerecord/lib/active_record/attribute_methods/time_zone_conversion.rb @@ -9,9 +9,9 @@ module ActiveRecord end def cast(value) - if value.is_a?(Array) - value.map { |v| cast(v) } - elsif value.is_a?(Hash) + return if value.nil? + + if value.is_a?(Hash) set_time_zone_without_conversion(super) elsif value.respond_to?(:in_time_zone) begin @@ -19,18 +19,22 @@ module ActiveRecord rescue ArgumentError nil end + else + map(super) { |t| cast(t) } end end private def convert_time_to_time_zone(value) - if value.is_a?(Array) - value.map { |v| convert_time_to_time_zone(v) } - elsif value.acts_like?(:time) + return if value.nil? + + if value.acts_like?(:time) value.in_time_zone - else + elsif value.is_a?(::Float) value + else + map(value) { |v| convert_time_to_time_zone(v) } end end diff --git a/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb b/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb index d3bc378bea..0ac5e80119 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb @@ -58,8 +58,8 @@ module ActiveRecord # Returns an array of the values of the first column in a select: # select_values("SELECT id FROM companies LIMIT 3") => [1,2,3] - def select_values(arel, name = nil) - arel, binds = binds_from_relation arel, [] + def select_values(arel, name = nil, binds = []) + arel, binds = binds_from_relation arel, binds select_rows(to_sql(arel, binds), name, binds).map(&:first) end @@ -115,20 +115,21 @@ module ActiveRecord # If the next id was calculated in advance (as in Oracle), it should be # passed in as +id_value+. def insert(arel, name = nil, pk = nil, id_value = nil, sequence_name = nil, binds = []) - sql, binds = sql_for_insert(to_sql(arel, binds), pk, id_value, sequence_name, binds) - value = exec_insert(sql, name, binds, pk, sequence_name) - id_value || last_inserted_id(value) + insert_sql(to_sql(arel, binds), name, pk, id_value, sequence_name, binds) end + alias create insert # Executes the update statement and returns the number of rows affected. def update(arel, name = nil, binds = []) exec_update(to_sql(arel, binds), name, binds) end + alias update_sql update # Executes the delete statement and returns the number of rows affected. def delete(arel, name = nil, binds = []) exec_delete(to_sql(arel, binds), name, binds) end + alias delete_sql delete # Returns +true+ when the connection adapter supports prepared statement # caching, otherwise returns +false+ @@ -351,6 +352,13 @@ module ActiveRecord end alias join_to_delete join_to_update + # Executes an INSERT query and returns the new record's ID + def insert_sql(sql, name = nil, pk = nil, id_value = nil, sequence_name = nil, binds = []) + sql, binds = sql_for_insert(sql, pk, id_value, sequence_name, binds) + value = exec_insert(sql, name, binds, pk, sequence_name) + id_value || last_inserted_id(value) + end + protected # Returns a subquery for the given key using the join information. @@ -369,22 +377,6 @@ module ActiveRecord exec_query(sql, name, binds, prepare: true) end - # Returns the last auto-generated ID from the affected table. - def insert_sql(sql, name = nil, pk = nil, id_value = nil, sequence_name = nil) - execute(sql, name) - id_value - end - - # Executes the update statement and returns the number of rows affected. - def update_sql(sql, name = nil) - execute(sql, name) - end - - # Executes the delete statement and returns the number of rows affected. - def delete_sql(sql, name = nil) - update_sql(sql, name) - end - def sql_for_insert(sql, pk, id_value, sequence_name, binds) [sql, binds] end diff --git a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb index a918a8b035..70868ebd03 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb @@ -968,6 +968,10 @@ module ActiveRecord ActiveRecord::SchemaMigration.create_table end + def initialize_internal_metadata_table + ActiveRecord::InternalMetadata.create_table + end + def assume_migrated_upto_version(version, migrations_paths) migrations_paths = Array(migrations_paths) version = version.to_i diff --git a/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb b/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb index 295a7bed87..14d04a6388 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb @@ -33,6 +33,7 @@ module ActiveRecord class NullTransaction #:nodoc: def initialize; end + def state; end def closed?; true; end def open?; false; end def joinable?; false; end diff --git a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb index 3b8d1c1a9f..dce34a208f 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb @@ -23,6 +23,7 @@ module ActiveRecord autoload :TableDefinition autoload :Table autoload :AlterTable + autoload :ReferenceDefinition end autoload_at 'active_record/connection_adapters/abstract/connection_pool' do @@ -391,19 +392,17 @@ module ActiveRecord def release_savepoint(name = nil) end - def case_sensitive_modifier(node, table_attribute) - node - end - def case_sensitive_comparison(table, attribute, column, value) - table_attr = table[attribute] - value = case_sensitive_modifier(value, table_attr) unless value.nil? - table_attr.eq(value) + if value.nil? + table[attribute].eq(value) + else + table[attribute].eq(Arel::Nodes::BindParam.new) + end end def case_insensitive_comparison(table, attribute, column, value) if can_perform_case_insensitive_comparison_for?(column) - table[attribute].lower.eq(table.lower(value)) + table[attribute].lower.eq(table.lower(Arel::Nodes::BindParam.new)) else case_sensitive_comparison(table, attribute, column, value) 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 0615e646b1..d435d91102 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb @@ -1,7 +1,9 @@ require 'active_record/connection_adapters/abstract_adapter' +require 'active_record/connection_adapters/mysql/column' require 'active_record/connection_adapters/mysql/schema_creation' require 'active_record/connection_adapters/mysql/schema_definitions' require 'active_record/connection_adapters/mysql/schema_dumper' +require 'active_record/connection_adapters/mysql/type_metadata' require 'active_support/core_ext/string/strip' @@ -19,78 +21,6 @@ module ActiveRecord MySQL::SchemaCreation.new(self) end - class Column < ConnectionAdapters::Column # :nodoc: - delegate :strict, :extra, to: :sql_type_metadata, allow_nil: true - - def initialize(*) - super - assert_valid_default(default) - extract_default - end - - def extract_default - if blob_or_text_column? - @default = null || strict ? nil : '' - end - end - - def has_default? - return false if blob_or_text_column? # MySQL forbids defaults on blob and text columns - super - end - - def blob_or_text_column? - sql_type =~ /blob/i || type == :text - end - - def unsigned? - /unsigned/ === sql_type - end - - def case_sensitive? - collation && !collation.match(/_ci$/) - end - - def auto_increment? - extra == 'auto_increment' - end - - private - - def assert_valid_default(default) - if blob_or_text_column? && default.present? - raise ArgumentError, "#{type} columns cannot have a default value: #{default.inspect}" - end - end - end - - class MysqlTypeMetadata < DelegateClass(SqlTypeMetadata) # :nodoc: - attr_reader :extra, :strict - - def initialize(type_metadata, extra: "", strict: false) - super(type_metadata) - @type_metadata = type_metadata - @extra = extra - @strict = strict - end - - def ==(other) - other.is_a?(MysqlTypeMetadata) && - attributes_for_hash == other.attributes_for_hash - end - alias eql? == - - def hash - attributes_for_hash.hash - end - - protected - - def attributes_for_hash - [self.class, @type_metadata, extra, strict] - end - end - ## # :singleton-method: # By default, the Mysql2Adapter will consider all columns of type <tt>tinyint(1)</tt> @@ -234,7 +164,7 @@ module ActiveRecord end def new_column(field, default, sql_type_metadata = nil, null = true, default_function = nil, collation = nil) # :nodoc: - Column.new(field, default, sql_type_metadata, null, default_function, collation) + MySQL::Column.new(field, default, sql_type_metadata, null, default_function, collation) end # Must return the MySQL error number from the exception, if the exception has an @@ -393,11 +323,6 @@ module ActiveRecord yield execute(sql, name) end - def update_sql(sql, name = nil) #:nodoc: - super - @connection.affected_rows - end - def begin_db_transaction execute "BEGIN" end @@ -507,6 +432,7 @@ module ActiveRecord end def table_exists?(table_name) + # Update lib/active_record/internal_metadata.rb when this gets removed ActiveSupport::Deprecation.warn(<<-MSG.squish) #table_exists? currently checks both tables and views. This behavior is deprecated and will be changed with Rails 5.1 to only check tables. @@ -752,16 +678,11 @@ module ActiveRecord SQL end - def case_sensitive_modifier(node, table_attribute) - node = Arel::Nodes.build_quoted node, table_attribute - Arel::Nodes::Bin.new(node) - end - def case_sensitive_comparison(table, attribute, column, value) - if column.case_sensitive? - table[attribute].eq(value) - else + if value.nil? || column.case_sensitive? super + else + table[attribute].eq(Arel::Nodes::Bin.new(Arel::Nodes::BindParam.new)) end end @@ -769,7 +690,7 @@ module ActiveRecord if column.case_sensitive? super else - table[attribute].eq(value) + table[attribute].eq(Arel::Nodes::BindParam.new) end end @@ -840,7 +761,7 @@ module ActiveRecord def register_integer_type(mapping, key, options) # :nodoc: mapping.register_type(key) do |sql_type| - if /unsigned/i =~ sql_type + if /\bunsigned\z/ === sql_type Type::UnsignedInteger.new(options) else Type::Integer.new(options) @@ -857,7 +778,7 @@ module ActiveRecord end def fetch_type_metadata(sql_type, extra = "") - MysqlTypeMetadata.new(super(sql_type), extra: extra, strict: strict_mode?) + MySQL::TypeMetadata.new(super(sql_type), extra: extra, strict: strict_mode?) end def add_index_length(option_strings, column_names, options = {}) diff --git a/activerecord/lib/active_record/connection_adapters/mysql/column.rb b/activerecord/lib/active_record/connection_adapters/mysql/column.rb new file mode 100644 index 0000000000..9c45fdd44a --- /dev/null +++ b/activerecord/lib/active_record/connection_adapters/mysql/column.rb @@ -0,0 +1,50 @@ +module ActiveRecord + module ConnectionAdapters + module MySQL + class Column < ConnectionAdapters::Column # :nodoc: + delegate :strict, :extra, to: :sql_type_metadata, allow_nil: true + + def initialize(*) + super + assert_valid_default + extract_default + end + + def has_default? + return false if blob_or_text_column? # MySQL forbids defaults on blob and text columns + super + end + + def blob_or_text_column? + /\A(?:tiny|medium|long)?blob\b/ === sql_type || type == :text + end + + def unsigned? + /\bunsigned\z/ === sql_type + end + + def case_sensitive? + collation && collation !~ /_ci\z/ + end + + def auto_increment? + extra == 'auto_increment' + end + + private + + def extract_default + if blob_or_text_column? + @default = null || strict ? nil : '' + end + end + + def assert_valid_default + if blob_or_text_column? && default.present? + raise ArgumentError, "#{type} columns cannot have a default value: #{default.inspect}" + end + end + end + end + end +end diff --git a/activerecord/lib/active_record/connection_adapters/mysql/schema_definitions.rb b/activerecord/lib/active_record/connection_adapters/mysql/schema_definitions.rb index ca7dfda80d..157e75dbf7 100644 --- a/activerecord/lib/active_record/connection_adapters/mysql/schema_definitions.rb +++ b/activerecord/lib/active_record/connection_adapters/mysql/schema_definitions.rb @@ -11,6 +11,30 @@ module ActiveRecord args.each { |name| column(name, :blob, options) } end + def tinyblob(*args, **options) + args.each { |name| column(name, :tinyblob, options) } + end + + def mediumblob(*args, **options) + args.each { |name| column(name, :mediumblob, options) } + end + + def longblob(*args, **options) + args.each { |name| column(name, :longblob, options) } + end + + def tinytext(*args, **options) + args.each { |name| column(name, :tinytext, options) } + end + + def mediumtext(*args, **options) + args.each { |name| column(name, :mediumtext, options) } + end + + def longtext(*args, **options) + args.each { |name| column(name, :longtext, options) } + end + def json(*args, **options) args.each { |name| column(name, :json, options) } end diff --git a/activerecord/lib/active_record/connection_adapters/mysql/type_metadata.rb b/activerecord/lib/active_record/connection_adapters/mysql/type_metadata.rb new file mode 100644 index 0000000000..e1e3f7b472 --- /dev/null +++ b/activerecord/lib/active_record/connection_adapters/mysql/type_metadata.rb @@ -0,0 +1,32 @@ +module ActiveRecord + module ConnectionAdapters + module MySQL + class TypeMetadata < DelegateClass(SqlTypeMetadata) # :nodoc: + attr_reader :extra, :strict + + def initialize(type_metadata, extra: "", strict: false) + super(type_metadata) + @type_metadata = type_metadata + @extra = extra + @strict = strict + end + + def ==(other) + other.is_a?(MySQL::TypeMetadata) && + attributes_for_hash == other.attributes_for_hash + end + alias eql? == + + def hash + attributes_for_hash.hash + end + + protected + + def attributes_for_hash + [self.class, @type_metadata, extra, strict] + end + end + end + end +end diff --git a/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb b/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb index 96a3a44b30..c3c5b660fd 100644 --- a/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb @@ -136,12 +136,6 @@ module ActiveRecord alias exec_without_stmt exec_query - def insert_sql(sql, name = nil, pk = nil, id_value = nil, sequence_name = nil) - super - id_value || @connection.last_id - end - alias :create :insert_sql - def exec_insert(sql, name, binds, pk = nil, sequence_name = nil) execute to_sql(sql, binds), name end diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/database_statements.rb b/activerecord/lib/active_record/connection_adapters/postgresql/database_statements.rb index 0e0c0e993a..11a151edd5 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/database_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/database_statements.rb @@ -52,8 +52,8 @@ module ActiveRecord end end - def select_values(arel, name = nil) - arel, binds = binds_from_relation arel, [] + def select_values(arel, name = nil, binds = []) + arel, binds = binds_from_relation arel, binds sql = to_sql(arel, binds) execute_and_clear(sql, name, binds) do |result| if result.nfields > 0 @@ -73,25 +73,13 @@ module ActiveRecord end # Executes an INSERT query and returns the new record's ID - def insert_sql(sql, name = nil, pk = nil, id_value = nil, sequence_name = nil) + def insert_sql(sql, name = nil, pk = nil, id_value = nil, sequence_name = nil, binds = []) # :nodoc: unless pk # Extract the table from the insert sql. Yuck. table_ref = extract_table_ref_from_insert_sql(sql) pk = primary_key(table_ref) if table_ref end - - if pk && use_insert_returning? - select_value("#{sql} RETURNING #{quote_column_name(pk)}") - elsif pk - super - last_insert_id_value(sequence_name || default_sequence_name(table_ref, pk)) - else - super - end - end - - def create - super.insert + super end # The internal PostgreSQL identifier of the money data type. @@ -175,12 +163,6 @@ module ActiveRecord alias :exec_update :exec_delete def sql_for_insert(sql, pk, id_value, sequence_name, binds) - unless pk - # Extract the table from the insert sql. Yuck. - table_ref = extract_table_ref_from_insert_sql(sql) - pk = primary_key(table_ref) if table_ref - end - if pk && use_insert_returning? sql = "#{sql} RETURNING #{quote_column_name(pk)}" end @@ -202,11 +184,6 @@ module ActiveRecord end end - # Executes an UPDATE query and returns the number of affected tuples. - def update_sql(sql, name = nil) - super.cmd_tuples - end - # Begins a transaction. def begin_db_transaction execute "BEGIN" diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/array.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/array.rb index 25961a9869..87593ef704 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/array.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/array.rb @@ -50,6 +50,10 @@ module ActiveRecord "[" + value.map { |v| subtype.type_cast_for_schema(v) }.join(", ") + "]" end + def map(value, &block) + value.map(&block) + end + private def type_cast_array(value, method) 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 fc201f8fb9..a8d2310035 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/range.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/range.rb @@ -6,6 +6,7 @@ module ActiveRecord module OID # :nodoc: class Range < Type::Value # :nodoc: attr_reader :subtype, :type + delegate :user_input_in_time_zone, to: :subtype def initialize(subtype, type = :range) @subtype = subtype @@ -18,7 +19,7 @@ module ActiveRecord def cast_value(value) return if value == 'empty' - return value if value.is_a?(::Range) + return value unless value.is_a?(::String) extracted = extract_bounds(value) from = type_cast_single extracted[:from] @@ -46,6 +47,12 @@ module ActiveRecord other.type == type end + def map(value) # :nodoc: + new_begin = yield(value.begin) + new_end = yield(value.end) + ::Range.new(new_begin, new_end, value.exclude_end?) + end + private def type_cast_single(value) diff --git a/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb b/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb index 163cbb875f..d1893f35f5 100644 --- a/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb @@ -280,22 +280,6 @@ module ActiveRecord log(sql, name) { @connection.execute(sql) } end - def update_sql(sql, name = nil) #:nodoc: - super - @connection.changes - end - - def delete_sql(sql, name = nil) #:nodoc: - sql += " WHERE 1=1" unless sql =~ /WHERE/i - super sql, name - end - - def insert_sql(sql, name = nil, pk = nil, id_value = nil, sequence_name = nil) #:nodoc: - super - id_value || @connection.last_insert_row_id - end - alias :create :insert_sql - def select_rows(sql, name = nil, binds = []) exec_query(sql, name, binds).rows end diff --git a/activerecord/lib/active_record/core.rb b/activerecord/lib/active_record/core.rb index 1250f8a3c3..475a298467 100644 --- a/activerecord/lib/active_record/core.rb +++ b/activerecord/lib/active_record/core.rb @@ -275,7 +275,7 @@ module ActiveRecord def relation # :nodoc: relation = Relation.create(self, arel_table, predicate_builder) - if finder_needs_type_condition? + if finder_needs_type_condition? && !ignore_default_scope? relation.where(type_condition).create_with(inheritance_column.to_sym => sti_name) else relation diff --git a/activerecord/lib/active_record/enum.rb b/activerecord/lib/active_record/enum.rb index 7ded96f8fb..04519f4dc3 100644 --- a/activerecord/lib/active_record/enum.rb +++ b/activerecord/lib/active_record/enum.rb @@ -124,7 +124,7 @@ module ActiveRecord def deserialize(value) return if value.nil? - mapping.key(value.to_i) + mapping.key(value) end def serialize(value) diff --git a/activerecord/lib/active_record/internal_metadata.rb b/activerecord/lib/active_record/internal_metadata.rb new file mode 100644 index 0000000000..2e962f4218 --- /dev/null +++ b/activerecord/lib/active_record/internal_metadata.rb @@ -0,0 +1,47 @@ +require 'active_record/scoping/default' +require 'active_record/scoping/named' + +module ActiveRecord + # This class is used to create a table that keeps track of values and keys such + # as which environment migrations were run in. + class InternalMetadata < ActiveRecord::Base # :nodoc: + class << self + def primary_key + "key" + end + + def table_name + "#{table_name_prefix}#{ActiveRecord::Base.internal_metadata_table_name}#{table_name_suffix}" + end + + def index_name + "#{table_name_prefix}unique_#{ActiveRecord::Base.internal_metadata_table_name}#{table_name_suffix}" + end + + def []=(key, value) + first_or_initialize(key: key).update_attributes!(value: value) + end + + def [](key) + where(key: key).pluck(:value).first + end + + def table_exists? + ActiveSupport::Deprecation.silence { connection.table_exists?(table_name) } + end + + # Creates an internal metadata table with columns +key+ and +value+ + def create_table + unless table_exists? + connection.create_table(table_name, primary_key: :key, id: false ) do |t| + t.column :key, :string + t.column :value, :string + t.timestamps + end + + connection.add_index table_name, :key, unique: true, name: index_name + end + end + end + end +end diff --git a/activerecord/lib/active_record/migration.rb b/activerecord/lib/active_record/migration.rb index 8c9eab436d..4a6e9c12fe 100644 --- a/activerecord/lib/active_record/migration.rb +++ b/activerecord/lib/active_record/migration.rb @@ -143,6 +143,40 @@ module ActiveRecord end end + class NoEnvironmentInSchemaError < MigrationError #:nodoc: + def initialize + msg = "Environment data not found in the schema. To resolve this issue, run: \n\n\tbin/rake db:environment:set" + if defined?(Rails.env) + super("#{msg} RAILS_ENV=#{::Rails.env}") + else + super(msg) + end + end + end + + class ProtectedEnvironmentError < ActiveRecordError #:nodoc: + def initialize(env = "production") + msg = "You are attempting to run a destructive action against your '#{env}' database\n" + msg << "If you are sure you want to continue, run the same command with the environment variable\n" + msg << "DISABLE_DATABASE_ENVIRONMENT_CHECK=1" + super(msg) + end + end + + class EnvironmentMismatchError < ActiveRecordError + def initialize(current: nil, stored: nil) + msg = "You are attempting to modify a database that was last run in `#{ stored }` environment.\n" + msg << "You are running in `#{ current }` environment." + msg << "If you are sure you want to continue, first set the environment using:\n\n" + msg << "\tbin/rake db:environment:set" + if defined?(Rails.env) + super("#{msg} RAILS_ENV=#{::Rails.env}") + else + super(msg) + end + end + end + # = Active Record Migrations # # Migrations can manage the evolution of a schema used by several physical @@ -1078,6 +1112,7 @@ module ActiveRecord validate(@migrations) Base.connection.initialize_schema_migrations_table + Base.connection.initialize_internal_metadata_table end def current_version @@ -1202,10 +1237,28 @@ module ActiveRecord ActiveRecord::SchemaMigration.where(:version => version.to_s).delete_all else migrated << version - ActiveRecord::SchemaMigration.create!(:version => version.to_s) + ActiveRecord::SchemaMigration.create!(version: version.to_s) + ActiveRecord::InternalMetadata[:environment] = ActiveRecord::Migrator.current_environment end end + def self.last_stored_environment + return nil if current_version == 0 + raise NoEnvironmentInSchemaError unless ActiveRecord::InternalMetadata.table_exists? + + environment = ActiveRecord::InternalMetadata[:environment] + raise NoEnvironmentInSchemaError unless environment + environment + end + + def self.current_environment + ActiveRecord::ConnectionHandling::DEFAULT_ENV.call + end + + def self.protected_environment? + ActiveRecord::Base.protected_environments.include?(last_stored_environment) if last_stored_environment + end + def up? @direction == :up end diff --git a/activerecord/lib/active_record/migration/compatibility.rb b/activerecord/lib/active_record/migration/compatibility.rb index 831bfa2df3..1b94573870 100644 --- a/activerecord/lib/active_record/migration/compatibility.rb +++ b/activerecord/lib/active_record/migration/compatibility.rb @@ -41,8 +41,9 @@ module ActiveRecord end def remove_index(table_name, options = {}) - index_name = index_name_for_remove(table_name, options) - execute "DROP INDEX #{quote_column_name(index_name)} ON #{quote_table_name(table_name)}" + options = { column: options } unless options.is_a?(Hash) + options[:name] = index_name_for_remove(table_name, options) + super(table_name, options) end private diff --git a/activerecord/lib/active_record/model_schema.rb b/activerecord/lib/active_record/model_schema.rb index a6a68f3d4b..f26c8471bc 100644 --- a/activerecord/lib/active_record/model_schema.rb +++ b/activerecord/lib/active_record/model_schema.rb @@ -44,6 +44,19 @@ module ActiveRecord ## # :singleton-method: + # Accessor for the name of the internal metadata table. By default, the value is "active_record_internal_metadatas" + class_attribute :internal_metadata_table_name, instance_accessor: false + self.internal_metadata_table_name = "active_record_internal_metadatas" + + ## + # :singleton-method: + # Accessor for an array of names of environments where destructive actions should be prohibited. By default, + # the value is ["production"] + class_attribute :protected_environments, instance_accessor: false + self.protected_environments = ["production"] + + ## + # :singleton-method: # Indicates whether table names should be the pluralized versions of the corresponding class names. # If true, the default table name for a Product class will be +products+. If false, it would just be +product+. # See table_name for the full rules on table/class naming. This is true, by default. diff --git a/activerecord/lib/active_record/railtie.rb b/activerecord/lib/active_record/railtie.rb index f5e69ec4fb..38916f7376 100644 --- a/activerecord/lib/active_record/railtie.rb +++ b/activerecord/lib/active_record/railtie.rb @@ -57,8 +57,10 @@ module ActiveRecord console do |app| require "active_record/railties/console_sandbox" if app.sandbox? require "active_record/base" - console = ActiveSupport::Logger.new(STDERR) - Rails.logger.extend ActiveSupport::Logger.broadcast console + unless ActiveSupport::Logger.logger_outputs_to?(Rails.logger, STDERR, STDOUT) + console = ActiveSupport::Logger.new(STDERR) + Rails.logger.extend ActiveSupport::Logger.broadcast console + end end runner do @@ -69,6 +71,7 @@ module ActiveRecord ActiveSupport.on_load(:active_record) do self.time_zone_aware_attributes = true self.default_timezone = :utc + self.time_zone_aware_types = ActiveRecord::Base.time_zone_aware_types end end diff --git a/activerecord/lib/active_record/railties/databases.rake b/activerecord/lib/active_record/railties/databases.rake index 9b59ee995a..d81d6b54b3 100644 --- a/activerecord/lib/active_record/railties/databases.rake +++ b/activerecord/lib/active_record/railties/databases.rake @@ -1,6 +1,16 @@ require 'active_record' db_namespace = namespace :db do + desc "Set the environment value for the database" + task "environment:set" => [:environment, :load_config] do + ActiveRecord::InternalMetadata.create_table + ActiveRecord::InternalMetadata[:environment] = ActiveRecord::Migrator.current_environment + end + + task :check_protected_environments => [:environment, :load_config] do + ActiveRecord::Tasks::DatabaseTasks.check_protected_environments! + end + task :load_config do ActiveRecord::Base.configurations = ActiveRecord::Tasks::DatabaseTasks.database_configuration || {} ActiveRecord::Migrator.migrations_paths = ActiveRecord::Tasks::DatabaseTasks.migrations_paths @@ -18,24 +28,28 @@ db_namespace = namespace :db do end namespace :drop do - task :all => :load_config do + task :all => [:load_config, :check_protected_environments] do ActiveRecord::Tasks::DatabaseTasks.drop_all end end desc 'Drops the database from DATABASE_URL or config/database.yml for the current RAILS_ENV (use db:drop:all to drop all databases in the config). Without RAILS_ENV, it defaults to dropping the development and test databases.' - task :drop => [:load_config] do + task :drop => [:load_config, :check_protected_environments] do + db_namespace["drop:_unsafe"].invoke + end + + task "drop:_unsafe" => [:load_config] do ActiveRecord::Tasks::DatabaseTasks.drop_current end namespace :purge do - task :all => :load_config do + task :all => [:load_config, :check_protected_environments] do ActiveRecord::Tasks::DatabaseTasks.purge_all end end # desc "Empty the database from DATABASE_URL or config/database.yml for the current RAILS_ENV (use db:purge:all to purge all databases in the config). Without RAILS_ENV it defaults to purging the development and test databases." - task :purge => [:load_config] do + task :purge => [:load_config, :check_protected_environments] do ActiveRecord::Tasks::DatabaseTasks.purge_current end @@ -351,7 +365,7 @@ db_namespace = namespace :db do task :clone_structure => %w(db:test:deprecated db:structure:dump db:test:load_structure) # desc "Empty the test database" - task :purge => %w(environment load_config) do + task :purge => %w(environment load_config check_protected_environments) do ActiveRecord::Tasks::DatabaseTasks.purge ActiveRecord::Base.configurations['test'] end diff --git a/activerecord/lib/active_record/reflection.rb b/activerecord/lib/active_record/reflection.rb index a549b28f16..37e18626b5 100644 --- a/activerecord/lib/active_record/reflection.rb +++ b/activerecord/lib/active_record/reflection.rb @@ -545,7 +545,7 @@ module ActiveRecord end end - # returns either nil or the inverse association name that it finds. + # returns either false 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 diff --git a/activerecord/lib/active_record/relation.rb b/activerecord/lib/active_record/relation.rb index 316b0d6308..6aa490908b 100644 --- a/activerecord/lib/active_record/relation.rb +++ b/activerecord/lib/active_record/relation.rb @@ -132,7 +132,7 @@ module ActiveRecord # ==== Examples # # users = User.where(name: 'Oscar') - # users.create # => #<User id: 3, name: "oscar", ...> + # users.create # => #<User id: 3, name: "Oscar", ...> # # users.create(name: 'fxn') # users.create # => #<User id: 4, name: "fxn", ...> diff --git a/activerecord/lib/active_record/relation/from_clause.rb b/activerecord/lib/active_record/relation/from_clause.rb index 92340216ed..8945cb0cc5 100644 --- a/activerecord/lib/active_record/relation/from_clause.rb +++ b/activerecord/lib/active_record/relation/from_clause.rb @@ -25,7 +25,7 @@ module ActiveRecord end def self.empty - new(nil, nil) + @empty ||= new(nil, nil) end end end diff --git a/activerecord/lib/active_record/relation/query_methods.rb b/activerecord/lib/active_record/relation/query_methods.rb index 983bf019bc..5635b4215b 100644 --- a/activerecord/lib/active_record/relation/query_methods.rb +++ b/activerecord/lib/active_record/relation/query_methods.rb @@ -54,16 +54,17 @@ module ActiveRecord end end + FROZEN_EMPTY_ARRAY = [].freeze Relation::MULTI_VALUE_METHODS.each do |name| class_eval <<-CODE, __FILE__, __LINE__ + 1 - def #{name}_values # def select_values - @values[:#{name}] || [] # @values[:select] || [] - end # end - # - def #{name}_values=(values) # def select_values=(values) - assert_mutability! # assert_mutability! - @values[:#{name}] = values # @values[:select] = values - end # end + def #{name}_values + @values[:#{name}] || FROZEN_EMPTY_ARRAY + end + + def #{name}_values=(values) + assert_mutability! + @values[:#{name}] = values + end CODE end @@ -116,8 +117,9 @@ module ActiveRecord result end + FROZEN_EMPTY_HASH = {}.freeze def create_with_value # :nodoc: - @values[:create_with] || {} + @values[:create_with] || FROZEN_EMPTY_HASH end alias extensions extending_values @@ -649,8 +651,8 @@ module ActiveRecord # they must differ only by #where (if no #group has been defined) or #having (if a #group is # present). Neither relation may have a #limit, #offset, or #distinct set. # - # Post.where("id = 1").or(Post.where("id = 2")) - # # SELECT `posts`.* FROM `posts` WHERE (('id = 1' OR 'id = 2')) + # Post.where("id = 1").or(Post.where("author_id = 3")) + # # SELECT `posts`.* FROM `posts` WHERE (('id = 1' OR 'author_id = 3')) # def or(other) spawn.or!(other) @@ -1190,7 +1192,7 @@ module ActiveRecord def structurally_compatible_for_or?(other) Relation::SINGLE_VALUE_METHODS.all? { |m| send("#{m}_value") == other.send("#{m}_value") } && (Relation::MULTI_VALUE_METHODS - [:extending]).all? { |m| send("#{m}_values") == other.send("#{m}_values") } && - (Relation::CLAUSE_METHODS - [:having, :where]).all? { |m| send("#{m}_clause") != other.send("#{m}_clause") } + (Relation::CLAUSE_METHODS - [:having, :where]).all? { |m| send("#{m}_clause") == other.send("#{m}_clause") } end def new_where_clause diff --git a/activerecord/lib/active_record/relation/record_fetch_warning.rb b/activerecord/lib/active_record/relation/record_fetch_warning.rb index 0a1814b3dd..dbd08811fa 100644 --- a/activerecord/lib/active_record/relation/record_fetch_warning.rb +++ b/activerecord/lib/active_record/relation/record_fetch_warning.rb @@ -24,9 +24,7 @@ module ActiveRecord end # :stopdoc: - ActiveSupport::Notifications.subscribe("sql.active_record") do |*args| - payload = args.last - + ActiveSupport::Notifications.subscribe("sql.active_record") do |*, payload| QueryRegistry.queries << payload[:sql] end # :startdoc: @@ -34,14 +32,14 @@ module ActiveRecord class QueryRegistry # :nodoc: extend ActiveSupport::PerThreadRegistry - attr_accessor :queries + attr_reader :queries def initialize - reset + @queries = [] end def reset - @queries = [] + @queries.clear end end end diff --git a/activerecord/lib/active_record/relation/where_clause.rb b/activerecord/lib/active_record/relation/where_clause.rb index 1f000b3f0f..e39dbac0d5 100644 --- a/activerecord/lib/active_record/relation/where_clause.rb +++ b/activerecord/lib/active_record/relation/where_clause.rb @@ -18,9 +18,10 @@ module ActiveRecord end def merge(other) + conflict_indices = indices_of_predicates_referenced_by(other).to_set WhereClause.new( - predicates_unreferenced_by(other) + other.predicates, - non_conflicting_binds(other) + other.binds, + non_conflicting(predicates, conflict_indices) + other.predicates, + non_conflicting(binds, conflict_indices) + other.binds, ) end @@ -81,7 +82,7 @@ module ActiveRecord end def self.empty - new([], []) + @empty ||= new([], []) end protected @@ -97,20 +98,18 @@ module ActiveRecord private - def predicates_unreferenced_by(other) - predicates.reject do |n| + def indices_of_predicates_referenced_by(other) + predicates.each_with_index.select do |(n, _)| equality_node?(n) && other.referenced_columns.include?(n.left) - end + end.map(&:last) end - def equality_node?(node) - node.respond_to?(:operator) && node.operator == :== + def non_conflicting(values, conflict_indices) + values.reject.with_index { |_, i| conflict_indices.include?(i) } end - def non_conflicting_binds(other) - conflicts = referenced_columns & other.referenced_columns - conflicts.map! { |node| node.name.to_s } - binds.reject { |attr| conflicts.include?(attr.name) } + def equality_node?(node) + node.respond_to?(:operator) && node.operator == :== end def inverted_predicates diff --git a/activerecord/lib/active_record/relation/where_clause_factory.rb b/activerecord/lib/active_record/relation/where_clause_factory.rb index a81ff98e49..dbf172a577 100644 --- a/activerecord/lib/active_record/relation/where_clause_factory.rb +++ b/activerecord/lib/active_record/relation/where_clause_factory.rb @@ -22,6 +22,7 @@ module ActiveRecord parts = predicate_builder.build_from_hash(attributes) when Arel::Nodes::Node parts = [opts] + binds = other else raise ArgumentError, "Unsupported argument type: #{opts} (#{opts.class})" end diff --git a/activerecord/lib/active_record/sanitization.rb b/activerecord/lib/active_record/sanitization.rb index 4e89ba4dd1..2bfc5ff7ae 100644 --- a/activerecord/lib/active_record/sanitization.rb +++ b/activerecord/lib/active_record/sanitization.rb @@ -213,7 +213,7 @@ module ActiveRecord end # TODO: Deprecate this - def quoted_id + def quoted_id # :nodoc: self.class.quote_value(@attributes[self.class.primary_key].value_for_database) end end diff --git a/activerecord/lib/active_record/schema.rb b/activerecord/lib/active_record/schema.rb index fdf9965a82..784a02d2c3 100644 --- a/activerecord/lib/active_record/schema.rb +++ b/activerecord/lib/active_record/schema.rb @@ -51,6 +51,9 @@ module ActiveRecord initialize_schema_migrations_table connection.assume_migrated_upto_version(info[:version], migrations_paths) end + + ActiveRecord::InternalMetadata.create_table + ActiveRecord::InternalMetadata[:environment] = ActiveRecord::Migrator.current_environment end private diff --git a/activerecord/lib/active_record/schema_dumper.rb b/activerecord/lib/active_record/schema_dumper.rb index 2362dae9fc..65005bd44b 100644 --- a/activerecord/lib/active_record/schema_dumper.rb +++ b/activerecord/lib/active_record/schema_dumper.rb @@ -254,7 +254,7 @@ HEADER end def ignored?(table_name) - [ActiveRecord::Base.schema_migrations_table_name, ignore_tables].flatten.any? do |ignored| + [ActiveRecord::Base.schema_migrations_table_name, ActiveRecord::Base.internal_metadata_table_name, ignore_tables].flatten.any? do |ignored| ignored === remove_prefix_and_suffix(table_name) end end diff --git a/activerecord/lib/active_record/schema_migration.rb b/activerecord/lib/active_record/schema_migration.rb index 51b9b17395..3017ee0bbb 100644 --- a/activerecord/lib/active_record/schema_migration.rb +++ b/activerecord/lib/active_record/schema_migration.rb @@ -9,7 +9,7 @@ module ActiveRecord class SchemaMigration < ActiveRecord::Base # :nodoc: class << self def primary_key - nil + "version" end def table_name diff --git a/activerecord/lib/active_record/scoping.rb b/activerecord/lib/active_record/scoping.rb index e395970dc6..7794af8ca4 100644 --- a/activerecord/lib/active_record/scoping.rb +++ b/activerecord/lib/active_record/scoping.rb @@ -11,11 +11,11 @@ module ActiveRecord module ClassMethods def current_scope #:nodoc: - ScopeRegistry.value_for(:current_scope, self.to_s) + ScopeRegistry.value_for(:current_scope, self) end def current_scope=(scope) #:nodoc: - ScopeRegistry.set_value_for(:current_scope, self.to_s, scope) + ScopeRegistry.set_value_for(:current_scope, self, scope) end # Collects attributes from scopes that should be applied when creating @@ -53,18 +53,18 @@ module ActiveRecord # following code: # # registry = ActiveRecord::Scoping::ScopeRegistry - # registry.set_value_for(:current_scope, "Board", some_new_scope) + # registry.set_value_for(:current_scope, Board, some_new_scope) # # Now when you run: # - # registry.value_for(:current_scope, "Board") + # registry.value_for(:current_scope, Board) # # You will obtain whatever was defined in +some_new_scope+. The #value_for # and #set_value_for methods are delegated to the current ScopeRegistry # object, so the above example code can also be called as: # # ActiveRecord::Scoping::ScopeRegistry.set_value_for(:current_scope, - # "Board", some_new_scope) + # Board, some_new_scope) class ScopeRegistry # :nodoc: extend ActiveSupport::PerThreadRegistry @@ -74,16 +74,22 @@ module ActiveRecord @registry = Hash.new { |hash, key| hash[key] = {} } end - # Obtains the value for a given +scope_name+ and +variable_name+. - def value_for(scope_type, variable_name) + # Obtains the value for a given +scope_type+ and +model+. + def value_for(scope_type, model) raise_invalid_scope_type!(scope_type) - @registry[scope_type][variable_name] + klass = model + base = model.base_class + while klass <= base + value = @registry[scope_type][klass.name] + return value if value + klass = klass.superclass + end end - # Sets the +value+ for a given +scope_type+ and +variable_name+. - def set_value_for(scope_type, variable_name, value) + # Sets the +value+ for a given +scope_type+ and +model+. + def set_value_for(scope_type, model, value) raise_invalid_scope_type!(scope_type) - @registry[scope_type][variable_name] = value + @registry[scope_type][model.name] = value end private diff --git a/activerecord/lib/active_record/scoping/default.rb b/activerecord/lib/active_record/scoping/default.rb index cdcb73382f..8baf3b8044 100644 --- a/activerecord/lib/active_record/scoping/default.rb +++ b/activerecord/lib/active_record/scoping/default.rb @@ -122,11 +122,11 @@ module ActiveRecord end def ignore_default_scope? # :nodoc: - ScopeRegistry.value_for(:ignore_default_scope, self) + ScopeRegistry.value_for(:ignore_default_scope, base_class) end def ignore_default_scope=(ignore) # :nodoc: - ScopeRegistry.set_value_for(:ignore_default_scope, self, ignore) + ScopeRegistry.set_value_for(:ignore_default_scope, base_class, ignore) end # The ignore_default_scope flag is used to prevent an infinite recursion diff --git a/activerecord/lib/active_record/secure_token.rb b/activerecord/lib/active_record/secure_token.rb index 8abda2ac49..f10f7a1515 100644 --- a/activerecord/lib/active_record/secure_token.rb +++ b/activerecord/lib/active_record/secure_token.rb @@ -20,14 +20,35 @@ module ActiveRecord # # <tt>SecureRandom::base58</tt> is used to generate the 24-character unique token, so collisions are highly unlikely. # + # A secure token can also be only created given a condition, for example if a user should only have an + # auto-generated invitation token if the user was invited: + # + # # Schema: User(token:string, invited:boolean) + # class User < ActiveRecord::Base + # has_secure_token if: :invited? + # end + # + # user = User.new(invited: true) + # user.save + # user.token # => "pX27zsMN2ViQKta1bGfLmVJE" + # + # user = User.new(invited: false) + # user.save + # user.token # => nil + # + # The secure token creation supports all the options a `before_create` does - like +:if+ and +:unless+. + # # Note that it's still possible to generate a race condition in the database in the same way that # {validates_uniqueness_of}[rdoc-ref:Validations::ClassMethods#validates_uniqueness_of] can. # You're encouraged to add a unique index in the database to deal with this even more unlikely scenario. - def has_secure_token(attribute = :token) + def has_secure_token(attribute = :token, **before_create_options) # Load securerandom only when has_secure_token is used. require 'active_support/core_ext/securerandom' + define_method("regenerate_#{attribute}") { update! attribute => self.class.generate_unique_secure_token } - before_create { self.send("#{attribute}=", self.class.generate_unique_secure_token) unless self.send("#{attribute}?")} + before_create(before_create_options) do + self.send("#{attribute}=", self.class.generate_unique_secure_token) unless self.send("#{attribute}?") + end end def generate_unique_secure_token diff --git a/activerecord/lib/active_record/tasks/database_tasks.rb b/activerecord/lib/active_record/tasks/database_tasks.rb index b6fba0cf79..8f52e9068a 100644 --- a/activerecord/lib/active_record/tasks/database_tasks.rb +++ b/activerecord/lib/active_record/tasks/database_tasks.rb @@ -42,6 +42,22 @@ module ActiveRecord LOCAL_HOSTS = ['127.0.0.1', 'localhost'] + def check_protected_environments! + unless ENV['DISABLE_DATABASE_ENVIRONMENT_CHECK'] + current = ActiveRecord::Migrator.current_environment + stored = ActiveRecord::Migrator.last_stored_environment + + if ActiveRecord::Migrator.protected_environment? + raise ActiveRecord::ProtectedEnvironmentError.new(stored) + end + + if stored && stored != current + raise ActiveRecord::EnvironmentMismatchError.new(current: current, stored: stored) + end + end + rescue ActiveRecord::NoDatabaseError + end + def register_task(pattern, task) @tasks ||= {} @tasks[pattern] = task @@ -204,6 +220,8 @@ module ActiveRecord else raise ArgumentError, "unknown format #{format.inspect}" end + ActiveRecord::InternalMetadata.create_table + ActiveRecord::InternalMetadata[:environment] = ActiveRecord::Migrator.current_environment end def load_schema_for(*args) diff --git a/activerecord/lib/active_record/validations/uniqueness.rb b/activerecord/lib/active_record/validations/uniqueness.rb index edc1325b25..a376e2a17f 100644 --- a/activerecord/lib/active_record/validations/uniqueness.rb +++ b/activerecord/lib/active_record/validations/uniqueness.rb @@ -73,15 +73,18 @@ module ActiveRecord value = value.to_s[0, column.limit] end - value = Arel::Nodes::Quoted.new(value) - comparison = if !options[:case_sensitive] && !value.nil? # will use SQL LOWER function before comparison, unless it detects a case insensitive collation klass.connection.case_insensitive_comparison(table, attribute, column, value) else klass.connection.case_sensitive_comparison(table, attribute, column, value) end - klass.unscoped.where(comparison) + if value.nil? + klass.unscoped.where(comparison) + else + bind = Relation::QueryAttribute.new(attribute.to_s, value, Type::Value.new) + klass.unscoped.where(comparison, bind) + end rescue RangeError klass.none end diff --git a/activerecord/lib/rails/generators/active_record/model/model_generator.rb b/activerecord/lib/rails/generators/active_record/model/model_generator.rb index 15aecf28ca..7395839fca 100644 --- a/activerecord/lib/rails/generators/active_record/model/model_generator.rb +++ b/activerecord/lib/rails/generators/active_record/model/model_generator.rb @@ -45,7 +45,13 @@ module ActiveRecord def determine_default_parent_class application_record = nil - in_root { application_record = File.exist?('app/models/application_record.rb') } + in_root do + application_record = if mountable_engine? + File.exist?("app/models/#{namespaced_path}/application_record.rb") + else + File.exist?('app/models/application_record.rb') + end + end if application_record "ApplicationRecord" |