diff options
Diffstat (limited to 'activerecord/lib')
31 files changed, 403 insertions, 258 deletions
diff --git a/activerecord/lib/active_record/aggregations.rb b/activerecord/lib/active_record/aggregations.rb index f7b50cd25a..a2aea63bdd 100644 --- a/activerecord/lib/active_record/aggregations.rb +++ b/activerecord/lib/active_record/aggregations.rb @@ -25,7 +25,7 @@ module ActiveRecord end # Active Record implements aggregation through a macro-like class method called +composed_of+ - # for representing attributes as value objects. It expresses relationships like "Account [is] + # for representing attributes as value objects. It expresses relationships like "Account [is] # composed of Money [among other things]" or "Person [is] composed of [an] address". Each call # to the macro adds a description of how the value objects are created from the attributes of # the entity object (when the entity is initialized either as a new object or from finding an diff --git a/activerecord/lib/active_record/associations.rb b/activerecord/lib/active_record/associations.rb index 65eb6fba27..cf3e63b4a3 100644 --- a/activerecord/lib/active_record/associations.rb +++ b/activerecord/lib/active_record/associations.rb @@ -446,14 +446,14 @@ module ActiveRecord # The tables for these classes could look something like: # # CREATE TABLE users ( - # id int(11) NOT NULL auto_increment, - # account_id int(11) default NULL, + # id int NOT NULL auto_increment, + # account_id int default NULL, # name varchar default NULL, # PRIMARY KEY (id) # ) # # CREATE TABLE accounts ( - # id int(11) NOT NULL auto_increment, + # id int NOT NULL auto_increment, # name varchar default NULL, # PRIMARY KEY (id) # ) diff --git a/activerecord/lib/active_record/associations/has_many_association.rb b/activerecord/lib/active_record/associations/has_many_association.rb index f8211ef9fb..38bda0d2a5 100644 --- a/activerecord/lib/active_record/associations/has_many_association.rb +++ b/activerecord/lib/active_record/associations/has_many_association.rb @@ -15,7 +15,7 @@ module ActiveRecord when :restrict_with_error unless empty? - record = klass.human_attribute_name(reflection.name).downcase + record = owner.class.human_attribute_name(reflection.name).downcase message = owner.errors.generate_message(:base, :'restrict_dependent_destroy.many', record: record, raise: true) rescue nil if message ActiveSupport::Deprecation.warn(<<-MESSAGE.squish) diff --git a/activerecord/lib/active_record/associations/has_one_association.rb b/activerecord/lib/active_record/associations/has_one_association.rb index 1829453d73..0fe9b2e81b 100644 --- a/activerecord/lib/active_record/associations/has_one_association.rb +++ b/activerecord/lib/active_record/associations/has_one_association.rb @@ -1,5 +1,5 @@ module ActiveRecord - # = Active Record Belongs To Has One Association + # = Active Record Has One Association module Associations class HasOneAssociation < SingularAssociation #:nodoc: include ForeignAssociation @@ -11,7 +11,7 @@ module ActiveRecord when :restrict_with_error if load_target - record = klass.human_attribute_name(reflection.name).downcase + record = owner.class.human_attribute_name(reflection.name).downcase message = owner.errors.generate_message(:base, :'restrict_dependent_destroy.one', record: record, raise: true) rescue nil if message ActiveSupport::Deprecation.warn(<<-MESSAGE.squish) diff --git a/activerecord/lib/active_record/attribute_methods.rb b/activerecord/lib/active_record/attribute_methods.rb index 0862306749..82b07de482 100644 --- a/activerecord/lib/active_record/attribute_methods.rb +++ b/activerecord/lib/active_record/attribute_methods.rb @@ -1,7 +1,7 @@ require 'active_support/core_ext/enumerable' require 'active_support/core_ext/string/filters' require 'mutex_m' -require 'thread_safe' +require 'concurrent' module ActiveRecord # = Active Record Attribute Methods @@ -37,7 +37,7 @@ module ActiveRecord class AttributeMethodCache def initialize @module = Module.new - @method_cache = ThreadSafe::Cache.new + @method_cache = Concurrent::Map.new end def [](name) diff --git a/activerecord/lib/active_record/attribute_methods/write.rb b/activerecord/lib/active_record/attribute_methods/write.rb index 07d5e7d38e..bbf2a51a0e 100644 --- a/activerecord/lib/active_record/attribute_methods/write.rb +++ b/activerecord/lib/active_record/attribute_methods/write.rb @@ -45,7 +45,7 @@ module ActiveRecord write_attribute_with_type_cast(attr_name, value, true) end - def raw_write_attribute(attr_name, value) + def raw_write_attribute(attr_name, value) # :nodoc: write_attribute_with_type_cast(attr_name, value, false) end diff --git a/activerecord/lib/active_record/attribute_set/builder.rb b/activerecord/lib/active_record/attribute_set/builder.rb index e85777c335..0c730d313f 100644 --- a/activerecord/lib/active_record/attribute_set/builder.rb +++ b/activerecord/lib/active_record/attribute_set/builder.rb @@ -1,3 +1,5 @@ +require 'active_record/attribute' + module ActiveRecord class AttributeSet # :nodoc: class Builder # :nodoc: diff --git a/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb b/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb index 282af220fb..b579bc1e93 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb @@ -1,5 +1,5 @@ require 'thread' -require 'thread_safe' +require 'concurrent' require 'monitor' module ActiveRecord @@ -337,7 +337,7 @@ module ActiveRecord # that case +conn.owner+ attr should be consulted. # Access and modification of +@thread_cached_conns+ does not require # synchronization. - @thread_cached_conns = ThreadSafe::Cache.new(:initial_capacity => @size) + @thread_cached_conns = Concurrent::Map.new(:initial_capacity => @size) @connections = [] @automatic_reconnect = true @@ -364,7 +364,7 @@ module ActiveRecord # Is there an open connection that is being used for the current thread? # - # This method only works for connections that have been abtained through + # This method only works for connections that have been obtained through # #connection or #with_connection methods, connections obtained through # #checkout will not be detected by #active_connection? def active_connection? @@ -427,7 +427,7 @@ module ActiveRecord # The pool first tries to gain ownership of all connections, if unable to # do so within a timeout interval (default duration is # +spec.config[:checkout_timeout] * 2+ seconds), the pool is forcefully - # disconneted wihout any regard for other connection owning threads. + # disconnected without any regard for other connection owning threads. def disconnect! disconnect(false) end @@ -587,7 +587,7 @@ module ActiveRecord end #-- - # From the discussion on Github: + # From the discussion on GitHub: # https://github.com/rails/rails/pull/14938#commitcomment-6601951 # This hook-in method allows for easier monkey-patching fixes needed by # JRuby users that use Fibers. @@ -824,11 +824,11 @@ module ActiveRecord # These caches are keyed by klass.name, NOT klass. Keying them by klass # alone would lead to memory leaks in development mode as all previous # instances of the class would stay in memory. - @owner_to_pool = ThreadSafe::Cache.new(:initial_capacity => 2) do |h,k| - h[k] = ThreadSafe::Cache.new(:initial_capacity => 2) + @owner_to_pool = Concurrent::Map.new(:initial_capacity => 2) do |h,k| + h[k] = Concurrent::Map.new(:initial_capacity => 2) end - @class_to_pool = ThreadSafe::Cache.new(:initial_capacity => 2) do |h,k| - h[k] = ThreadSafe::Cache.new + @class_to_pool = Concurrent::Map.new(:initial_capacity => 2) do |h,k| + h[k] = Concurrent::Map.new 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 1e13b24867..107806cd93 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb @@ -137,7 +137,7 @@ module ActiveRecord # # In order to get around this problem, #transaction will emulate the effect # of nested transactions, by using savepoints: - # http://dev.mysql.com/doc/refman/5.6/en/savepoint.html + # http://dev.mysql.com/doc/refman/5.7/en/savepoint.html # Savepoints are supported by MySQL and PostgreSQL. SQLite3 version >= '3.6.8' # supports savepoints. # @@ -190,7 +190,7 @@ module ActiveRecord # semantics of these different levels: # # * http://www.postgresql.org/docs/current/static/transaction-iso.html - # * https://dev.mysql.com/doc/refman/5.6/en/set-transaction.html + # * https://dev.mysql.com/doc/refman/5.7/en/set-transaction.html # # An <tt>ActiveRecord::TransactionIsolationError</tt> will be raised if: # diff --git a/activerecord/lib/active_record/connection_adapters/abstract/schema_creation.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_creation.rb index 18d943f452..0ba4d94e3c 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/schema_creation.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_creation.rb @@ -14,8 +14,10 @@ module ActiveRecord send m, o end - delegate :quote_column_name, :quote_table_name, :quote_default_expression, :type_to_sql, to: :@conn - private :quote_column_name, :quote_table_name, :quote_default_expression, :type_to_sql + delegate :quote_column_name, :quote_table_name, :quote_default_expression, :type_to_sql, + :options_include_default?, :supports_indexes_in_create?, :supports_foreign_keys?, :foreign_key_options, to: :@conn + private :quote_column_name, :quote_table_name, :quote_default_expression, :type_to_sql, + :options_include_default?, :supports_indexes_in_create?, :supports_foreign_keys?, :foreign_key_options private @@ -38,17 +40,32 @@ module ActiveRecord end def visit_TableDefinition(o) - create_sql = "CREATE#{' TEMPORARY' if o.temporary} TABLE " - create_sql << "#{quote_table_name(o.name)} " - create_sql << "(#{o.columns.map { |c| accept c }.join(', ')}) " unless o.as + create_sql = "CREATE#{' TEMPORARY' if o.temporary} TABLE #{quote_table_name(o.name)} " + + statements = o.columns.map { |c| accept c } + statements << accept(o.primary_keys) if o.primary_keys + + if supports_indexes_in_create? + statements.concat(o.indexes.map { |column_name, options| index_in_create(o.name, column_name, options) }) + end + + if supports_foreign_keys? + statements.concat(o.foreign_keys.map { |to_table, options| foreign_key_in_create(o.name, to_table, options) }) + end + + create_sql << "(#{statements.join(', ')}) " if statements.present? create_sql << "#{o.options}" create_sql << " AS #{@conn.to_sql(o.as)}" if o.as create_sql end - def visit_AddForeignKey(o) + def visit_PrimaryKeyDefinition(o) + "PRIMARY KEY (#{o.name.join(', ')})" + end + + def visit_ForeignKeyDefinition(o) sql = <<-SQL.strip_heredoc - ADD CONSTRAINT #{quote_column_name(o.name)} + CONSTRAINT #{quote_column_name(o.name)} FOREIGN KEY (#{quote_column_name(o.column)}) REFERENCES #{quote_table_name(o.to_table)} (#{quote_column_name(o.primary_key)}) SQL @@ -57,6 +74,10 @@ module ActiveRecord sql end + def visit_AddForeignKey(o) + "ADD #{accept(o)}" + end + def visit_DropForeignKey(name) "DROP CONSTRAINT #{quote_column_name(name)}" end @@ -89,8 +110,9 @@ module ActiveRecord sql end - def options_include_default?(options) - options.include?(:default) && !(options[:null] == false && options[:default].nil?) + def foreign_key_in_create(from_table, to_table, options) + options = foreign_key_options(from_table, to_table, options) + accept ForeignKeyDefinition.new(from_table, to_table, options) end def action_sql(action, dependency) diff --git a/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb index 3115e03ea2..10329de5f4 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb @@ -23,6 +23,9 @@ module ActiveRecord class ChangeColumnDefinition < Struct.new(:column, :name) #:nodoc: end + class PrimaryKeyDefinition < Struct.new(:name) # :nodoc: + end + class ForeignKeyDefinition < Struct.new(:from_table, :to_table, :options) #:nodoc: def name options[:name] @@ -207,6 +210,7 @@ module ActiveRecord @columns_hash = {} @indexes = {} @foreign_keys = {} + @primary_keys = nil @native = types @temporary = temporary @options = options @@ -214,6 +218,11 @@ module ActiveRecord @name = name end + def primary_keys(name = nil) # :nodoc: + @primary_keys = PrimaryKeyDefinition.new(name) if name + @primary_keys + end + # Returns an array of ColumnDefinition objects for the columns of the table. def columns; @columns_hash.values; end @@ -236,8 +245,8 @@ module ActiveRecord # # Available options are (none of these exists by default): # * <tt>:limit</tt> - - # Requests a maximum column length. This is number of characters for <tt>:string</tt> and - # <tt>:text</tt> columns and number of bytes for <tt>:binary</tt> and <tt>:integer</tt> columns. + # Requests a maximum column length. This is number of characters for a <tt>:string</tt> column + # and number of bytes for <tt>:text</tt>, <tt>:binary</tt> and <tt>:integer</tt> columns. # * <tt>:default</tt> - # The column's default value. Use nil for NULL. # * <tt>:null</tt> - 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 08803303cf..40175c8c8c 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb @@ -36,6 +36,19 @@ module ActiveRecord tables.include?(table_name.to_s) end + # Returns an array of view names defined in the database. + def views + raise NotImplementedError, "#views is not implemented" + end + + # Checks to see if the view +view_name+ exists on the database. + # + # view_exists?(:ebooks) + # + def view_exists?(view_name) + views.include?(view_name.to_s) + end + # Returns an array of indexes for the given table. # def indexes(table_name, name = nil) end @@ -93,6 +106,12 @@ module ActiveRecord (!options.key?(:null) || c.null == options[:null]) } end + # Returns just a table's primary key + def primary_key(table_name) + pks = primary_keys(table_name) + pks.first if pks.one? + end + # Creates a new table with the name +table_name+. +table_name+ may either # be a String or a Symbol. # @@ -158,7 +177,7 @@ module ActiveRecord # generates: # # CREATE TABLE suppliers ( - # id int(11) DEFAULT NULL auto_increment PRIMARY KEY + # id int auto_increment PRIMARY KEY # ) ENGINE=InnoDB DEFAULT CHARSET=utf8 # # ====== Rename the primary key column @@ -170,7 +189,7 @@ module ActiveRecord # generates: # # CREATE TABLE objects ( - # guid int(11) DEFAULT NULL auto_increment PRIMARY KEY, + # guid int auto_increment PRIMARY KEY, # name varchar(80) # ) # @@ -220,7 +239,11 @@ module ActiveRecord Base.get_primary_key table_name.to_s.singularize end - td.primary_key pk, options.fetch(:id, :primary_key), options + if pk.is_a?(Array) + td.primary_keys pk + else + td.primary_key pk, options.fetch(:id, :primary_key), options + end end yield td if block_given? @@ -237,10 +260,6 @@ module ActiveRecord end end - td.foreign_keys.each_pair do |other_table_name, foreign_key_options| - add_foreign_key(table_name, other_table_name, foreign_key_options) - end - result end @@ -320,7 +339,7 @@ module ActiveRecord # [<tt>:bulk</tt>] # Set this to true to make this a bulk alter query, such as # - # ALTER TABLE `users` ADD COLUMN age INT(11), ADD COLUMN birthdate DATETIME ... + # ALTER TABLE `users` ADD COLUMN age INT, ADD COLUMN birthdate DATETIME ... # # Defaults to false. # @@ -540,6 +559,8 @@ module ActiveRecord # # CREATE INDEX by_name ON accounts(name(10)) # + # ====== Creating an index with specific key lengths for multiple keys + # # add_index(:accounts, [:name, :surname], name: 'by_name_surname', length: {name: 10, surname: 15}) # # generates: @@ -769,15 +790,7 @@ module ActiveRecord def add_foreign_key(from_table, to_table, options = {}) return unless supports_foreign_keys? - options[:column] ||= foreign_key_column_for(to_table) - - options = { - column: options[:column], - primary_key: options[:primary_key], - name: foreign_key_name(from_table, options), - on_delete: options[:on_delete], - on_update: options[:on_update] - } + options = foreign_key_options(from_table, to_table, options) at = create_alter_table from_table at.add_foreign_key to_table, options @@ -845,6 +858,13 @@ module ActiveRecord "#{name.singularize}_id" end + def foreign_key_options(from_table, to_table, options) # :nodoc: + options = options.dup + options[:column] ||= foreign_key_column_for(to_table) + options[:name] ||= foreign_key_name(from_table, options) + options + end + def dump_schema_information #:nodoc: sm_table = ActiveRecord::Migrator.schema_migrations_table_name @@ -986,6 +1006,10 @@ module ActiveRecord [index_name, index_type, index_columns, index_options, algorithm, using] end + def options_include_default?(options) + options.include?(:default) && !(options[:null] == false && options[:default].nil?) + end + protected def add_index_sort_order(option_strings, column_names, options = {}) if options.is_a?(Hash) && order = options[:order] @@ -1012,10 +1036,6 @@ module ActiveRecord column_names.map {|name| quote_column_name(name) + option_strings[name]} end - def options_include_default?(options) - options.include?(:default) && !(options[:null] == false && options[:default].nil?) - end - def index_name_for_remove(table_name, options = {}) index_name = index_name(table_name, options) 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 7b47539596..feb41e96f0 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb @@ -14,10 +14,26 @@ module ActiveRecord def json(*args, **options) args.each { |name| column(name, :json, options) } end + + def unsigned_integer(*args, **options) + args.each { |name| column(name, :unsigned_integer, options) } + end + + def unsigned_bigint(*args, **options) + args.each { |name| column(name, :unsigned_bigint, options) } + end + + def unsigned_float(*args, **options) + args.each { |name| column(name, :unsigned_float, options) } + end + + def unsigned_decimal(*args, **options) + args.each { |name| column(name, :unsigned_decimal, options) } + end end class ColumnDefinition < ActiveRecord::ConnectionAdapters::ColumnDefinition - attr_accessor :charset + attr_accessor :charset, :unsigned end class TableDefinition < ActiveRecord::ConnectionAdapters::TableDefinition @@ -29,7 +45,11 @@ module ActiveRecord when :primary_key column.type = :integer column.auto_increment = true + when /\Aunsigned_(?<type>.+)\z/ + column.type = $~[:type].to_sym + column.unsigned = true end + column.unsigned ||= options[:unsigned] column.charset = options[:charset] column end @@ -52,17 +72,9 @@ module ActiveRecord "DROP FOREIGN KEY #{name}" end - def visit_TableDefinition(o) - name = o.name - create_sql = "CREATE#{' TEMPORARY' if o.temporary} TABLE #{quote_table_name(name)} " - - statements = o.columns.map { |c| accept c } - statements.concat(o.indexes.map { |column_name, options| index_in_create(name, column_name, options) }) - - create_sql << "(#{statements.join(', ')}) " if statements.present? - create_sql << "#{o.options}" - create_sql << " AS #{@conn.to_sql(o.as)}" if o.as - create_sql + def visit_ColumnDefinition(o) + o.sql_type = type_to_sql(o.type, o.limit, o.precision, o.scale, o.unsigned) + super end def visit_AddColumnDefinition(o) @@ -117,6 +129,7 @@ module ActiveRecord spec = {} if column.auto_increment? spec[:id] = ':bigint' if column.bigint? + spec[:unsigned] = 'true' if column.unsigned? return if spec.empty? else spec[:id] = column.type.inspect @@ -125,6 +138,16 @@ module ActiveRecord spec end + def prepare_column_options(column) + spec = super + spec[:unsigned] = 'true' if column.unsigned? + spec + end + + def migration_keys + super + [:unsigned] + end + private def schema_limit(column) @@ -171,6 +194,10 @@ module ActiveRecord sql_type =~ /blob/i || type == :text end + def unsigned? + /unsigned/ === sql_type + end + def case_sensitive? collation && !collation.match(/_ci$/) end @@ -246,7 +273,7 @@ module ActiveRecord QUOTED_TRUE, QUOTED_FALSE = '1', '0' NATIVE_DATABASE_TYPES = { - primary_key: "int(11) auto_increment PRIMARY KEY", + primary_key: "int auto_increment PRIMARY KEY", string: { name: "varchar", limit: 255 }, text: { name: "text" }, integer: { name: "int", limit: 4 }, @@ -316,6 +343,10 @@ module ActiveRecord version >= '5.0.0' end + def supports_explain? + true + end + def supports_indexes_in_create? true end @@ -417,6 +448,80 @@ module ActiveRecord # DATABASE STATEMENTS ====================================== #++ + def explain(arel, binds = []) + sql = "EXPLAIN #{to_sql(arel, binds)}" + start = Time.now + result = exec_query(sql, 'EXPLAIN', binds) + elapsed = Time.now - start + + ExplainPrettyPrinter.new.pp(result, elapsed) + end + + class ExplainPrettyPrinter # :nodoc: + # Pretty prints the result of a EXPLAIN in a way that resembles the output of the + # MySQL shell: + # + # +----+-------------+-------+-------+---------------+---------+---------+-------+------+-------------+ + # | id | select_type | table | type | possible_keys | key | key_len | ref | rows | Extra | + # +----+-------------+-------+-------+---------------+---------+---------+-------+------+-------------+ + # | 1 | SIMPLE | users | const | PRIMARY | PRIMARY | 4 | const | 1 | | + # | 1 | SIMPLE | posts | ALL | NULL | NULL | NULL | NULL | 1 | Using where | + # +----+-------------+-------+-------+---------------+---------+---------+-------+------+-------------+ + # 2 rows in set (0.00 sec) + # + # This is an exercise in Ruby hyperrealism :). + def pp(result, elapsed) + widths = compute_column_widths(result) + separator = build_separator(widths) + + pp = [] + + pp << separator + pp << build_cells(result.columns, widths) + pp << separator + + result.rows.each do |row| + pp << build_cells(row, widths) + end + + pp << separator + pp << build_footer(result.rows.length, elapsed) + + pp.join("\n") + "\n" + end + + private + + def compute_column_widths(result) + [].tap do |widths| + result.columns.each_with_index do |column, i| + cells_in_column = [column] + result.rows.map {|r| r[i].nil? ? 'NULL' : r[i].to_s} + widths << cells_in_column.map(&:length).max + end + end + end + + def build_separator(widths) + padding = 1 + '+' + widths.map {|w| '-' * (w + (padding*2))}.join('+') + '+' + end + + def build_cells(items, widths) + cells = [] + items.each_with_index do |item, i| + item = 'NULL' if item.nil? + justifier = item.is_a?(Numeric) ? 'rjust' : 'ljust' + cells << item.to_s.send(justifier, widths[i]) + end + '| ' + cells.join(' | ') + ' |' + end + + def build_footer(nrows, elapsed) + rows_label = nrows == 1 ? 'row' : 'rows' + "#{nrows} #{rows_label} in set (%.2f sec)" % elapsed + end + end + def clear_cache! super reload_type_map @@ -520,33 +625,40 @@ module ActiveRecord show_variable 'collation_database' end - def tables(name = nil, database = nil, like = nil) #:nodoc: - sql = "SHOW TABLES " - sql << "IN #{quote_table_name(database)} " if database - sql << "LIKE #{quote(like)}" if like - - execute_and_free(sql, 'SCHEMA') do |result| - result.collect(&:first) - end + def tables(name = nil) # :nodoc: + select_values("SHOW FULL TABLES", 'SCHEMA') end def truncate(table_name, name = nil) execute "TRUNCATE TABLE #{quote_table_name(table_name)}", name end - def table_exists?(name) - return false unless name.present? - return true if tables(nil, nil, name).any? + def table_exists?(table_name) + return false unless table_name.present? - name = name.to_s - schema, table = name.split('.', 2) + schema, name = table_name.to_s.split('.', 2) + schema, name = @config[:database], schema unless name # A table was provided without a schema - unless table # A table was provided without a schema - table = schema - schema = nil - end + sql = "SELECT table_name FROM information_schema.tables " + sql << "WHERE table_schema = #{quote(schema)} AND table_name = #{quote(name)}" + + select_values(sql, 'SCHEMA').any? + end - tables(nil, schema, table).any? + def views # :nodoc: + select_values("SHOW FULL TABLES WHERE table_type = 'VIEW'", 'SCHEMA') + end + + def view_exists?(view_name) # :nodoc: + return false unless view_name.present? + + schema, name = view_name.to_s.split('.', 2) + schema, name = @config[:database], schema unless name # A view was provided without a schema + + sql = "SELECT table_name FROM information_schema.tables WHERE table_type = 'VIEW'" + sql << " AND table_schema = #{quote(schema)} AND table_name = #{quote(name)}" + + select_values(sql, 'SCHEMA').any? end # Returns an array of indexes for the given table. @@ -685,7 +797,7 @@ module ActiveRecord AND fk.table_name = '#{table_name}' SQL - create_table_info = select_one("SHOW CREATE TABLE #{quote_table_name(table_name)}")["Create Table"] + create_table_info = create_table_info(table_name) fk_info.map do |row| options = { @@ -702,7 +814,7 @@ module ActiveRecord end def table_options(table_name) - create_table_info = select_one("SHOW CREATE TABLE #{quote_table_name(table_name)}")["Create Table"] + create_table_info = create_table_info(table_name) # strip create_definitions and partition_options raw_table_options = create_table_info.sub(/\A.*\n\) /m, '').sub(/\n\/\*!.*\*\/\n\z/m, '').strip @@ -712,8 +824,8 @@ module ActiveRecord end # Maps logical Rails types to MySQL-specific data types. - def type_to_sql(type, limit = nil, precision = nil, scale = nil) - case type.to_s + def type_to_sql(type, limit = nil, precision = nil, scale = nil, unsigned = nil) + sql = case type.to_s when 'binary' binary_to_sql(limit) when 'integer' @@ -721,8 +833,11 @@ module ActiveRecord when 'text' text_to_sql(limit) else - super + super(type, limit, precision, scale) end + + sql << ' unsigned' if unsigned && type != :primary_key + sql end # SHOW VARIABLES LIKE 'name' @@ -735,21 +850,25 @@ module ActiveRecord # Returns a table's primary key and belonging sequence. def pk_and_sequence_for(table) - execute_and_free("SHOW CREATE TABLE #{quote_table_name(table)}", 'SCHEMA') do |result| - create_table = each_hash(result).first[:"Create Table"] - if create_table.to_s =~ /PRIMARY KEY\s+(?:USING\s+\w+\s+)?\((.+)\)/ - keys = $1.split(",").map { |key| key.delete('`"') } - keys.length == 1 ? [keys.first, nil] : nil - else - nil - end + if pk = primary_key(table) + [ pk, nil ] end end - # Returns just a table's primary key - def primary_key(table) - pk_and_sequence = pk_and_sequence_for(table) - pk_and_sequence && pk_and_sequence.first + def primary_keys(table_name) # :nodoc: + raise ArgumentError unless table_name.present? + + schema, name = table_name.to_s.split('.', 2) + schema, name = @config[:database], schema unless name # A table was provided without a schema + + select_values(<<-SQL.strip_heredoc, 'SCHEMA') + SELECT column_name + FROM information_schema.key_column_usage + WHERE constraint_name = 'PRIMARY' + AND table_schema = #{quote(schema)} + AND table_name = #{quote(name)} + ORDER BY ordinal_position + SQL end def case_sensitive_modifier(node, table_attribute) @@ -807,7 +926,6 @@ module ActiveRecord register_integer_type m, %r(^tinyint)i, limit: 1 m.alias_type %r(tinyint\(1\))i, 'boolean' if emulate_booleans - m.alias_type %r(set)i, 'varchar' m.alias_type %r(year)i, 'integer' m.alias_type %r(bit)i, 'binary' @@ -816,6 +934,12 @@ module ActiveRecord .split(',').map{|enum| enum.strip.length - 2}.max MysqlString.new(limit: limit) end + + m.register_type(%r(^set)i) do |sql_type| + limit = sql_type[/^set\((.+)\)/i, 1] + .split(',').map{|set| set.strip.length - 1}.sum - 1 + MysqlString.new(limit: limit) + end end def register_integer_type(mapping, key, options) # :nodoc: @@ -980,14 +1104,14 @@ module ActiveRecord defaults = [':default', :default].to_set # Make MySQL reject illegal values rather than truncating or blanking them, see - # http://dev.mysql.com/doc/refman/5.6/en/sql-mode.html#sqlmode_strict_all_tables + # http://dev.mysql.com/doc/refman/5.7/en/sql-mode.html#sqlmode_strict_all_tables # If the user has provided another value for sql_mode, don't replace it. unless variables.has_key?('sql_mode') || defaults.include?(@config[:strict]) variables['sql_mode'] = strict_mode? ? 'STRICT_ALL_TABLES' : '' end # NAMES does not have an equals sign, see - # http://dev.mysql.com/doc/refman/5.6/en/set-statement.html#id944430 + # http://dev.mysql.com/doc/refman/5.7/en/set-statement.html#id944430 # (trailing comma because variable_assignments will always have content) if @config[:encoding] encoding = "NAMES #{@config[:encoding]}" @@ -1018,6 +1142,11 @@ module ActiveRecord end end + def create_table_info(table_name) # :nodoc: + @create_table_info_cache = {} + @create_table_info_cache[table_name] ||= select_one("SHOW CREATE TABLE #{quote_table_name(table_name)}")["Create Table"] + end + def create_table_definition(name, temporary = false, options = nil, as = nil) # :nodoc: TableDefinition.new(native_database_types, name, temporary, options, as) end @@ -1027,7 +1156,7 @@ module ActiveRecord when 0..0xfff; "varbinary(#{limit})" when nil; "blob" when 0x1000..0xffffffff; "blob(#{limit})" - else raise(ActiveRecordError, "No binary type has character length #{limit}") + else raise(ActiveRecordError, "No binary type has byte length #{limit}") end end @@ -1036,8 +1165,9 @@ module ActiveRecord when 1; 'tinyint' when 2; 'smallint' when 3; 'mediumint' - when nil, 4, 11; 'int(11)' # compatibility with MySQL default + when nil, 4; 'int' when 5..8; 'bigint' + when 11; 'int(11)' # backward compatibility with Rails 2.0 else raise(ActiveRecordError, "No integer type has byte size #{limit}") end end @@ -1048,7 +1178,7 @@ module ActiveRecord when nil, 0x100..0xffff; 'text' when 0x10000..0xffffff; 'mediumtext' when 0x1000000..0xffffffff; 'longtext' - else raise(ActiveRecordError, "No text type has character length #{limit}") + else raise(ActiveRecordError, "No text type has byte length #{limit}") end end @@ -1084,6 +1214,8 @@ module ActiveRecord ActiveRecord::Type.register(:json, MysqlJson, adapter: :mysql2) ActiveRecord::Type.register(:string, MysqlString, adapter: :mysql) ActiveRecord::Type.register(:string, MysqlString, adapter: :mysql2) + ActiveRecord::Type.register(:unsigned_integer, Type::UnsignedInteger, adapter: :mysql) + ActiveRecord::Type.register(:unsigned_integer, Type::UnsignedInteger, adapter: :mysql2) end end end diff --git a/activerecord/lib/active_record/connection_adapters/column.rb b/activerecord/lib/active_record/connection_adapters/column.rb index 4b95b0681d..8222811e0c 100644 --- a/activerecord/lib/active_record/connection_adapters/column.rb +++ b/activerecord/lib/active_record/connection_adapters/column.rb @@ -18,7 +18,7 @@ module ActiveRecord # Instantiates a new column in the table. # - # +name+ is the column's name, such as <tt>supplier_id</tt> in <tt>supplier_id int(11)</tt>. + # +name+ is the column's name, such as <tt>supplier_id</tt> in <tt>supplier_id int</tt>. # +default+ is the type-casted default value, such as +new+ in <tt>sales_stage varchar(20) default 'new'</tt>. # +sql_type_metadata+ is various information about the type of the column # +null+ determines if this column allows +NULL+ values. diff --git a/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb b/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb index 734b384e80..4461722bb4 100644 --- a/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb @@ -37,10 +37,6 @@ module ActiveRecord configure_connection end - def supports_explain? - true - end - def supports_json? version >= '5.7.8' end @@ -99,80 +95,6 @@ module ActiveRecord # DATABASE STATEMENTS ====================================== #++ - def explain(arel, binds = []) - sql = "EXPLAIN #{to_sql(arel, binds.dup)}" - start = Time.now - result = exec_query(sql, 'EXPLAIN', binds) - elapsed = Time.now - start - - ExplainPrettyPrinter.new.pp(result, elapsed) - end - - class ExplainPrettyPrinter # :nodoc: - # Pretty prints the result of a EXPLAIN in a way that resembles the output of the - # MySQL shell: - # - # +----+-------------+-------+-------+---------------+---------+---------+-------+------+-------------+ - # | id | select_type | table | type | possible_keys | key | key_len | ref | rows | Extra | - # +----+-------------+-------+-------+---------------+---------+---------+-------+------+-------------+ - # | 1 | SIMPLE | users | const | PRIMARY | PRIMARY | 4 | const | 1 | | - # | 1 | SIMPLE | posts | ALL | NULL | NULL | NULL | NULL | 1 | Using where | - # +----+-------------+-------+-------+---------------+---------+---------+-------+------+-------------+ - # 2 rows in set (0.00 sec) - # - # This is an exercise in Ruby hyperrealism :). - def pp(result, elapsed) - widths = compute_column_widths(result) - separator = build_separator(widths) - - pp = [] - - pp << separator - pp << build_cells(result.columns, widths) - pp << separator - - result.rows.each do |row| - pp << build_cells(row, widths) - end - - pp << separator - pp << build_footer(result.rows.length, elapsed) - - pp.join("\n") + "\n" - end - - private - - def compute_column_widths(result) - [].tap do |widths| - result.columns.each_with_index do |column, i| - cells_in_column = [column] + result.rows.map {|r| r[i].nil? ? 'NULL' : r[i].to_s} - widths << cells_in_column.map(&:length).max - end - end - end - - def build_separator(widths) - padding = 1 - '+' + widths.map {|w| '-' * (w + (padding*2))}.join('+') + '+' - end - - def build_cells(items, widths) - cells = [] - items.each_with_index do |item, i| - item = 'NULL' if item.nil? - justifier = item.is_a?(Numeric) ? 'rjust' : 'ljust' - cells << item.to_s.send(justifier, widths[i]) - end - '| ' + cells.join(' | ') + ' |' - end - - def build_footer(nrows, elapsed) - rows_label = nrows == 1 ? 'row' : 'rows' - "#{nrows} #{rows_label} in set (%.2f sec)" % elapsed - end - end - # FIXME: re-enable the following once a "better" query_cache solution is in core # # The overrides below perform much better than the originals in AbstractAdapter diff --git a/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb b/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb index 0738c59ddf..b3894481cc 100644 --- a/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb @@ -58,9 +58,9 @@ module ActiveRecord # * <tt>:password</tt> - Defaults to nothing. # * <tt>:database</tt> - The name of the database. No default, must be provided. # * <tt>:encoding</tt> - (Optional) Sets the client encoding by executing "SET NAMES <encoding>" after connection. - # * <tt>:reconnect</tt> - Defaults to false (See MySQL documentation: http://dev.mysql.com/doc/refman/5.6/en/auto-reconnect.html). - # * <tt>:strict</tt> - Defaults to true. Enable STRICT_ALL_TABLES. (See MySQL documentation: http://dev.mysql.com/doc/refman/5.6/en/sql-mode.html) - # * <tt>:variables</tt> - (Optional) A hash session variables to send as <tt>SET @@SESSION.key = value</tt> on each database connection. Use the value +:default+ to set a variable to its DEFAULT value. (See MySQL documentation: http://dev.mysql.com/doc/refman/5.6/en/set-statement.html). + # * <tt>:reconnect</tt> - Defaults to false (See MySQL documentation: http://dev.mysql.com/doc/refman/5.7/en/auto-reconnect.html). + # * <tt>:strict</tt> - Defaults to true. Enable STRICT_ALL_TABLES. (See MySQL documentation: http://dev.mysql.com/doc/refman/5.7/en/sql-mode.html) + # * <tt>:variables</tt> - (Optional) A hash session variables to send as <tt>SET @@SESSION.key = value</tt> on each database connection. Use the value +:default+ to set a variable to its DEFAULT value. (See MySQL documentation: http://dev.mysql.com/doc/refman/5.7/en/set-statement.html). # * <tt>:sslca</tt> - Necessary to use MySQL with an SSL connection. # * <tt>:sslkey</tt> - Necessary to use MySQL with an SSL connection. # * <tt>:sslcert</tt> - Necessary to use MySQL with an SSL connection. @@ -80,8 +80,7 @@ module ActiveRecord def initialize(connection, logger, connection_options, config) super - @statements = StatementPool.new(@connection, - self.class.type_cast_config_to_integer(config.fetch(:statement_limit) { 1000 })) + @statements = StatementPool.new(self.class.type_cast_config_to_integer(config.fetch(:statement_limit) { 1000 })) @client_encoding = nil connect end @@ -162,6 +161,14 @@ module ActiveRecord # DATABASE STATEMENTS ====================================== #++ + def select_all(arel, name = nil, binds = []) + if ExplainRegistry.collect? && prepared_statements + unprepared_statement { super } + else + super + end + end + def select_rows(sql, name = nil, binds = []) @connection.query_with_result = true rows = exec_query(sql, name, binds).rows diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb b/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb index 69aa02ccf4..66d311dd48 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb @@ -90,6 +90,30 @@ module ActiveRecord SQL end + def views # :nodoc: + select_values(<<-SQL, 'SCHEMA') + SELECT c.relname + FROM pg_class c + LEFT JOIN pg_namespace n ON n.oid = c.relnamespace + WHERE c.relkind IN ('v','m') -- (v)iew, (m)aterialized view + AND n.nspname = ANY (current_schemas(false)) + SQL + end + + def view_exists?(view_name) # :nodoc: + name = Utils.extract_schema_qualified_name(view_name.to_s) + return false unless name.identifier + + select_values(<<-SQL, 'SCHEMA').any? + SELECT c.relname + FROM pg_class c + LEFT JOIN pg_namespace n ON n.oid = c.relnamespace + WHERE c.relkind IN ('v','m') -- (v)iew, (m)aterialized view + AND c.relname = '#{name.identifier}' + AND n.nspname = #{name.schema ? "'#{name.schema}'" : 'ANY (current_schemas(false))'} + SQL + end + def drop_table(table_name, options = {}) # :nodoc: execute "DROP TABLE#{' IF EXISTS' if options[:if_exists]} #{quote_table_name(table_name)}#{' CASCADE' if options[:force] == :cascade}" end @@ -353,17 +377,19 @@ module ActiveRecord nil end - # Returns just a table's primary key - def primary_key(table) - pks = query(<<-end_sql, 'SCHEMA') - SELECT attr.attname - FROM pg_attribute attr - INNER JOIN pg_constraint cons ON attr.attrelid = cons.conrelid AND attr.attnum = any(cons.conkey) - WHERE cons.contype = 'p' - AND cons.conrelid = '#{quote_table_name(table)}'::regclass - end_sql - return nil unless pks.count == 1 - pks[0][0] + def primary_keys(table_name) # :nodoc: + select_values(<<-SQL.strip_heredoc, 'SCHEMA') + WITH pk_constraint AS ( + SELECT conrelid, unnest(conkey) AS connum FROM pg_constraint + WHERE contype = 'p' + AND conrelid = '#{quote_table_name(table_name)}'::regclass + ), cons AS ( + SELECT conrelid, connum, row_number() OVER() AS rownum FROM pk_constraint + ) + SELECT attr.attname FROM pg_attribute attr + INNER JOIN cons ON attr.attrelid = cons.conrelid AND attr.attnum = cons.connum + ORDER BY cons.rownum + SQL end # Renames a table. diff --git a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb index 27291bd2ea..9de79a614c 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb @@ -211,7 +211,8 @@ module ActiveRecord class StatementPool < ConnectionAdapters::StatementPool def initialize(connection, max) - super + super(max) + @connection = connection @counter = 0 end diff --git a/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb b/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb index 24fc67938d..e2f52707e8 100644 --- a/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb @@ -81,8 +81,7 @@ module ActiveRecord super(connection, logger) @active = nil - @statements = StatementPool.new(@connection, - self.class.type_cast_config_to_integer(config.fetch(:statement_limit) { 1000 })) + @statements = StatementPool.new(self.class.type_cast_config_to_integer(config.fetch(:statement_limit) { 1000 })) @config = config @visitor = Arel::Visitors::SQLite.new self @@ -325,6 +324,19 @@ module ActiveRecord table_name && tables(nil, table_name).any? end + def views # :nodoc: + select_values("SELECT name FROM sqlite_master WHERE type = 'view' AND name <> 'sqlite_sequence'", 'SCHEMA') + end + + def view_exists?(view_name) # :nodoc: + return false unless view_name.present? + + sql = "SELECT name FROM sqlite_master WHERE type = 'view' AND name <> 'sqlite_sequence'" + sql << " AND name = #{quote(view_name)}" + + select_values(sql, 'SCHEMA').any? + end + # Returns an array of +Column+ objects for the table specified by +table_name+. def columns(table_name) #:nodoc: table_structure(table_name).map do |field| @@ -369,10 +381,9 @@ module ActiveRecord end end - def primary_key(table_name) #:nodoc: + def primary_keys(table_name) # :nodoc: pks = table_structure(table_name).select { |f| f['pk'] > 0 } - return nil unless pks.count == 1 - pks[0]['name'] + pks.sort_by { |f| f['pk'] }.map { |f| f['name'] } end def remove_index(table_name, options = {}) #:nodoc: diff --git a/activerecord/lib/active_record/connection_adapters/statement_pool.rb b/activerecord/lib/active_record/connection_adapters/statement_pool.rb index 82e9ef3d3d..57463dd749 100644 --- a/activerecord/lib/active_record/connection_adapters/statement_pool.rb +++ b/activerecord/lib/active_record/connection_adapters/statement_pool.rb @@ -3,10 +3,9 @@ module ActiveRecord class StatementPool include Enumerable - def initialize(connection, max = 1000) + def initialize(max = 1000) @cache = Hash.new { |h,pid| h[pid] = {} } - @connection = connection - @max = max + @max = max end def each(&block) diff --git a/activerecord/lib/active_record/enum.rb b/activerecord/lib/active_record/enum.rb index 4902fcb1a2..a79bf0366b 100644 --- a/activerecord/lib/active_record/enum.rb +++ b/activerecord/lib/active_record/enum.rb @@ -204,30 +204,22 @@ module ActiveRecord def detect_enum_conflict!(enum_name, method_name, klass_method = false) if klass_method && dangerous_class_method?(method_name) - raise ArgumentError, ENUM_CONFLICT_MESSAGE % { - enum: enum_name, - klass: self.name, - type: 'class', - method: method_name, - source: 'Active Record' - } + raise_conflict_error(enum_name, method_name, type: 'class') elsif !klass_method && dangerous_attribute_method?(method_name) - raise ArgumentError, ENUM_CONFLICT_MESSAGE % { - enum: enum_name, - klass: self.name, - type: 'instance', - method: method_name, - source: 'Active Record' - } + raise_conflict_error(enum_name, method_name) elsif !klass_method && method_defined_within?(method_name, _enum_methods_module, Module) - raise ArgumentError, ENUM_CONFLICT_MESSAGE % { - enum: enum_name, - klass: self.name, - type: 'instance', - method: method_name, - source: 'another enum' - } + raise_conflict_error(enum_name, method_name, source: 'another enum') end end + + def raise_conflict_error(enum_name, method_name, type: 'instance', source: 'Active Record') + raise ArgumentError, ENUM_CONFLICT_MESSAGE % { + enum: enum_name, + klass: self.name, + type: type, + method: method_name, + source: source + } + end end end diff --git a/activerecord/lib/active_record/integration.rb b/activerecord/lib/active_record/integration.rb index 15b2f65dcb..370c1562c9 100644 --- a/activerecord/lib/active_record/integration.rb +++ b/activerecord/lib/active_record/integration.rb @@ -84,7 +84,7 @@ module ActiveRecord # Values longer than 20 characters will be truncated. The value # is truncated word by word. # - # user = User.find_by(name: 'David HeinemeierHansson') + # user = User.find_by(name: 'David Heinemeier Hansson') # user.id # => 125 # user_path(user) # => "/users/125-david" # diff --git a/activerecord/lib/active_record/locking/pessimistic.rb b/activerecord/lib/active_record/locking/pessimistic.rb index 3d95c54ef3..8ecdf76b72 100644 --- a/activerecord/lib/active_record/locking/pessimistic.rb +++ b/activerecord/lib/active_record/locking/pessimistic.rb @@ -51,7 +51,7 @@ module ActiveRecord # end # # Database-specific information on row locking: - # MySQL: http://dev.mysql.com/doc/refman/5.6/en/innodb-locking-reads.html + # MySQL: http://dev.mysql.com/doc/refman/5.7/en/innodb-locking-reads.html # PostgreSQL: http://www.postgresql.org/docs/current/interactive/sql-select.html#SQL-FOR-UPDATE-SHARE module Pessimistic # Obtain a row lock on this record. Reloads the record to obtain the requested diff --git a/activerecord/lib/active_record/null_relation.rb b/activerecord/lib/active_record/null_relation.rb index 74894d0c37..0b500346bc 100644 --- a/activerecord/lib/active_record/null_relation.rb +++ b/activerecord/lib/active_record/null_relation.rb @@ -1,5 +1,3 @@ -# -*- coding: utf-8 -*- - module ActiveRecord module NullRelation # :nodoc: def exec_queries diff --git a/activerecord/lib/active_record/reflection.rb b/activerecord/lib/active_record/reflection.rb index 2b648978b3..4e0fc407bc 100644 --- a/activerecord/lib/active_record/reflection.rb +++ b/activerecord/lib/active_record/reflection.rb @@ -66,7 +66,6 @@ module ActiveRecord # # Account.reflections # => {"balance" => AggregateReflection} # - # @api public def reflections @__reflections ||= begin ref = {} @@ -96,7 +95,6 @@ module ActiveRecord # Account.reflect_on_all_associations # returns an array of all associations # Account.reflect_on_all_associations(:has_many) # returns an array of all has_many associations # - # @api public def reflect_on_all_associations(macro = nil) association_reflections = reflections.values association_reflections.select! { |reflection| reflection.macro == macro } if macro @@ -108,24 +106,20 @@ module ActiveRecord # Account.reflect_on_association(:owner) # returns the owner AssociationReflection # Invoice.reflect_on_association(:line_items).macro # returns :has_many # - # @api public def reflect_on_association(association) reflections[association.to_s] end - # @api private def _reflect_on_association(association) #:nodoc: _reflections[association.to_s] end # Returns an array of AssociationReflection objects for all associations which have <tt>:autosave</tt> enabled. - # - # @api public def reflect_on_all_autosave_associations reflections.values.select { |reflection| reflection.options[:autosave] } end - def clear_reflections_cache #:nodoc: + def clear_reflections_cache # :nodoc: @__reflections = nil end end diff --git a/activerecord/lib/active_record/relation.rb b/activerecord/lib/active_record/relation.rb index bf08cdbbf3..e596df8742 100644 --- a/activerecord/lib/active_record/relation.rb +++ b/activerecord/lib/active_record/relation.rb @@ -1,4 +1,3 @@ -# -*- coding: utf-8 -*- require "arel/collectors/bind" module ActiveRecord diff --git a/activerecord/lib/active_record/schema_dumper.rb b/activerecord/lib/active_record/schema_dumper.rb index c5910fa1ad..f1f827f163 100644 --- a/activerecord/lib/active_record/schema_dumper.rb +++ b/activerecord/lib/active_record/schema_dumper.rb @@ -89,7 +89,7 @@ HEADER end def tables(stream) - sorted_tables = @connection.tables.sort + sorted_tables = @connection.tables.sort - @connection.views sorted_tables.each do |table_name| table(table_name, stream) unless ignored?(table_name) @@ -112,20 +112,27 @@ HEADER tbl = StringIO.new # first dump primary key column - pk = @connection.primary_key(table) + if @connection.respond_to?(:primary_keys) + pk = @connection.primary_keys(table) + pk = pk.first unless pk.size > 1 + else + pk = @connection.primary_key(table) + end tbl.print " create_table #{remove_prefix_and_suffix(table).inspect}" - pkcol = columns.detect { |c| c.name == pk } - if pkcol - if pk != 'id' - tbl.print %Q(, primary_key: "#{pk}") - end + + case pk + when String + tbl.print ", primary_key: #{pk.inspect}" unless pk == 'id' + pkcol = columns.detect { |c| c.name == pk } pkcolspec = @connection.column_spec_for_primary_key(pkcol) if pkcolspec pkcolspec.each do |key, value| tbl.print ", #{key}: #{value}" end end + when Array + tbl.print ", primary_key: #{pk.inspect}" else tbl.print ", id: false" end @@ -247,7 +254,7 @@ HEADER end def ignored?(table_name) - ['schema_migrations', ignore_tables].flatten.any? do |ignored| + [ActiveRecord::Base.schema_migrations_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 cb47bf23f7..b384529e75 100644 --- a/activerecord/lib/active_record/schema_migration.rb +++ b/activerecord/lib/active_record/schema_migration.rb @@ -2,7 +2,11 @@ require 'active_record/scoping/default' require 'active_record/scoping/named' module ActiveRecord - class SchemaMigration < ActiveRecord::Base + # This class is used to create a table that keeps track of which migrations + # have been applied to a given database. When a migration is run, its schema + # number is inserted in to the `SchemaMigration.table_name` so it doesn't need + # to be executed the next time. + class SchemaMigration < ActiveRecord::Base # :nodoc: class << self def primary_key nil diff --git a/activerecord/lib/active_record/tasks/mysql_database_tasks.rb b/activerecord/lib/active_record/tasks/mysql_database_tasks.rb index 673386f0d9..ba5dd0a0d9 100644 --- a/activerecord/lib/active_record/tasks/mysql_database_tasks.rb +++ b/activerecord/lib/active_record/tasks/mysql_database_tasks.rb @@ -23,7 +23,7 @@ module ActiveRecord end rescue error_class => error if error.respond_to?(:errno) && error.errno == ACCESS_DENIED_ERROR - $stdout.print error.error + $stdout.print error.message establish_connection root_configuration_without_database connection.create_database configuration['database'], creation_options if configuration['username'] != 'root' diff --git a/activerecord/lib/active_record/transactions.rb b/activerecord/lib/active_record/transactions.rb index 887d7a5903..4a569fc242 100644 --- a/activerecord/lib/active_record/transactions.rb +++ b/activerecord/lib/active_record/transactions.rb @@ -167,7 +167,7 @@ module ActiveRecord # writing, the only database that we're aware of that supports true nested # transactions, is MS-SQL. Because of this, Active Record emulates nested # transactions by using savepoints on MySQL and PostgreSQL. See - # http://dev.mysql.com/doc/refman/5.6/en/savepoint.html + # http://dev.mysql.com/doc/refman/5.7/en/savepoint.html # for more information about savepoints. # # === Callbacks diff --git a/activerecord/lib/active_record/type/type_map.rb b/activerecord/lib/active_record/type/type_map.rb index 09f5ba6b74..8ce36cc9af 100644 --- a/activerecord/lib/active_record/type/type_map.rb +++ b/activerecord/lib/active_record/type/type_map.rb @@ -1,12 +1,12 @@ -require 'thread_safe' +require 'concurrent' module ActiveRecord module Type class TypeMap # :nodoc: def initialize @mapping = {} - @cache = ThreadSafe::Cache.new do |h, key| - h.fetch_or_store(key, ThreadSafe::Cache.new) + @cache = Concurrent::Map.new do |h, key| + h.fetch_or_store(key, Concurrent::Map.new) end end |