diff options
Diffstat (limited to 'activerecord/lib/active_record')
33 files changed, 573 insertions, 358 deletions
diff --git a/activerecord/lib/active_record/associations/belongs_to_association.rb b/activerecord/lib/active_record/associations/belongs_to_association.rb index ba54cd8f49..68c608df13 100644 --- a/activerecord/lib/active_record/associations/belongs_to_association.rb +++ b/activerecord/lib/active_record/associations/belongs_to_association.rb @@ -49,9 +49,9 @@ module ActiveRecord def update_counters(by) if require_counter_update? && foreign_key_present? if target && !stale_target? - target.increment!(reflection.counter_cache_column, by) + target.increment!(reflection.counter_cache_column, by, touch: reflection.options[:touch]) else - klass.update_counters(target_id, reflection.counter_cache_column => by) + klass.update_counters(target_id, reflection.counter_cache_column => by, touch: reflection.options[:touch]) end end end diff --git a/activerecord/lib/active_record/associations/builder/belongs_to.rb b/activerecord/lib/active_record/associations/builder/belongs_to.rb index 9904ee4bed..c161454c1a 100644 --- a/activerecord/lib/active_record/associations/builder/belongs_to.rb +++ b/activerecord/lib/active_record/associations/builder/belongs_to.rb @@ -114,9 +114,13 @@ module ActiveRecord::Associations::Builder # :nodoc: BelongsTo.touch_record(record, record.send(changes_method), foreign_key, n, touch, belongs_to_touch_method) }} - model.after_save callback.(:saved_changes), if: :saved_changes? - model.after_touch callback.(:changes_to_save) - model.after_destroy callback.(:changes_to_save) + unless reflection.counter_cache_column + model.after_create callback.(:saved_changes), if: :saved_changes? + model.after_destroy callback.(:changes_to_save) + end + + model.after_update callback.(:saved_changes), if: :saved_changes? + model.after_touch callback.(:changes_to_save) end def self.add_default_callbacks(model, reflection) diff --git a/activerecord/lib/active_record/attributes.rb b/activerecord/lib/active_record/attributes.rb index 0b7c9398a8..35150889d9 100644 --- a/activerecord/lib/active_record/attributes.rb +++ b/activerecord/lib/active_record/attributes.rb @@ -57,7 +57,7 @@ module ActiveRecord # store_listing = StoreListing.new(price_in_cents: '10.1') # # # before - # store_listing.price_in_cents # => BigDecimal.new(10.1) + # store_listing.price_in_cents # => BigDecimal(10.1) # # class StoreListing < ActiveRecord::Base # attribute :price_in_cents, :integer diff --git a/activerecord/lib/active_record/callbacks.rb b/activerecord/lib/active_record/callbacks.rb index 9ab2780760..9dbdf845bd 100644 --- a/activerecord/lib/active_record/callbacks.rb +++ b/activerecord/lib/active_record/callbacks.rb @@ -232,7 +232,7 @@ module ActiveRecord # # For example: # - # class Topic + # class Topic < ActiveRecord::Base # has_many :children # # after_save :log_children @@ -257,7 +257,7 @@ module ActiveRecord # # For example: # - # class Topic + # class Topic < ActiveRecord::Base # has_many :children # # after_commit :log_children diff --git a/activerecord/lib/active_record/collection_cache_key.rb b/activerecord/lib/active_record/collection_cache_key.rb index 88b398ad45..12e4fae865 100644 --- a/activerecord/lib/active_record/collection_cache_key.rb +++ b/activerecord/lib/active_record/collection_cache_key.rb @@ -3,7 +3,7 @@ module ActiveRecord module CollectionCacheKey def collection_cache_key(collection = all, timestamp_column = :updated_at) # :nodoc: - query_signature = Digest::MD5.hexdigest(collection.to_sql) + query_signature = ActiveSupport::Digest.hexdigest(collection.to_sql) key = "#{collection.model_name.cache_key}/query-#{query_signature}" if collection.loaded? @@ -20,8 +20,7 @@ module ActiveRecord select_values = "COUNT(*) AS #{connection.quote_column_name("size")}, MAX(%s) AS timestamp" if collection.has_limit_or_offset? - query = collection.spawn - query.select_values = [column] + query = collection.select(column) subquery_alias = "subquery_for_cache_key" subquery_column = "#{subquery_alias}.#{timestamp_column}" subquery = query.arel.as(subquery_alias) 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 bd05fb8f6e..4a191d337c 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/schema_creation.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_creation.rb @@ -95,6 +95,7 @@ module ActiveRecord if options_sql = options[:options] create_sql << " #{options_sql}" end + create_sql end def column_options(o) 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 b66009bdc6..0594b4b485 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb @@ -6,7 +6,7 @@ module ActiveRecord # this type are typically created and returned by methods in database # adapters. e.g. ActiveRecord::ConnectionAdapters::MySQL::SchemaStatements#indexes class IndexDefinition # :nodoc: - attr_reader :table, :name, :unique, :columns, :lengths, :orders, :where, :type, :using, :opclass, :comment + attr_reader :table, :name, :unique, :columns, :lengths, :orders, :opclasses, :where, :type, :using, :comment def initialize( table, name, @@ -14,24 +14,33 @@ module ActiveRecord columns = [], lengths: {}, orders: {}, + opclasses: {}, where: nil, type: nil, using: nil, - opclass: {}, comment: nil ) @table = table @name = name @unique = unique @columns = columns - @lengths = lengths - @orders = orders + @lengths = concise_options(lengths) + @orders = concise_options(orders) + @opclasses = concise_options(opclasses) @where = where @type = type @using = using - @opclass = opclass @comment = comment end + + private + def concise_options(options) + if columns.size == options.size && options.values.uniq.size == 1 + options.values.first + else + options + end + end end # Abstract representation of a column definition. Instances of this type @@ -87,6 +96,11 @@ module ActiveRecord options[:primary_key] != default_primary_key end + def validate? + options.fetch(:validate, true) + end + alias validated? validate? + def defined_for?(to_table_ord = nil, to_table: nil, **options) if to_table_ord self.to_table == to_table_ord.to_s @@ -206,6 +220,7 @@ module ActiveRecord :decimal, :float, :integer, + :json, :string, :text, :time, 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 7ae32d0ced..4f58b0242c 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb @@ -600,7 +600,7 @@ module ActiveRecord # to provide these in a migration's +change+ method so it can be reverted. # In that case, +type+ and +options+ will be used by #add_column. def remove_column(table_name, column_name, type = nil, options = {}) - execute "ALTER TABLE #{quote_table_name(table_name)} DROP #{quote_column_name(column_name)}" + execute "ALTER TABLE #{quote_table_name(table_name)} #{remove_column_for_alter(table_name, column_name, type, options)}" end # Changes the column's definition according to the new options. @@ -964,6 +964,8 @@ module ActiveRecord # Action that happens <tt>ON DELETE</tt>. Valid values are +:nullify+, +:cascade+ and +:restrict+ # [<tt>:on_update</tt>] # Action that happens <tt>ON UPDATE</tt>. Valid values are +:nullify+, +:cascade+ and +:restrict+ + # [<tt>:validate</tt>] + # (Postgres only) Specify whether or not the constraint should be validated. Defaults to +true+. def add_foreign_key(from_table, to_table, options = {}) return unless supports_foreign_keys? @@ -1195,17 +1197,18 @@ module ActiveRecord end def add_index_sort_order(quoted_columns, **options) - if order = options[:order] - case order - when Hash - order = order.symbolize_keys - quoted_columns.each { |name, column| column << " #{order[name].upcase}" if order[name].present? } - when String - quoted_columns.each { |name, column| column << " #{order.upcase}" if order.present? } - end + orders = options_for_index_columns(options[:order]) + quoted_columns.each do |name, column| + column << " #{orders[name].upcase}" if orders[name].present? end + end - quoted_columns + def options_for_index_columns(options) + if options.is_a?(Hash) + options.symbolize_keys + else + Hash.new { |hash, column| hash[column] = options } + end end # Overridden by the MySQL adapter for supporting index lengths and by @@ -1363,6 +1366,20 @@ module ActiveRecord options.is_a?(Hash) && options.key?(:name) && options.except(:name, :algorithm).empty? end + def add_column_for_alter(table_name, column_name, type, options = {}) + td = create_table_definition(table_name) + cd = td.new_column_definition(column_name, type, options) + schema_creation.accept(AddColumnDefinition.new(cd)) + end + + def remove_column_for_alter(table_name, column_name, type = nil, options = {}) + "DROP COLUMN #{quote_column_name(column_name)}" + end + + def remove_columns_for_alter(table_name, *column_names) + column_names.map { |column_name| remove_column_for_alter(table_name, column_name) } + end + def insert_versions_sql(versions) sm_table = quote_table_name(ActiveRecord::SchemaMigration.table_name) diff --git a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb index 8993c517a6..fc80d332f9 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb @@ -272,6 +272,11 @@ module ActiveRecord false end + # Does this adapter support creating invalid constraints? + def supports_validate_constraints? + false + end + # Does this adapter support creating foreign key constraints # in the same statement as creating the table? def supports_foreign_keys_in_create? 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 ede8a9c1e2..0afdd959f5 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb @@ -117,11 +117,11 @@ module ActiveRecord end def get_advisory_lock(lock_name, timeout = 0) # :nodoc: - query_value("SELECT GET_LOCK(#{quote(lock_name)}, #{timeout})") == 1 + query_value("SELECT GET_LOCK(#{quote(lock_name.to_s)}, #{timeout})") == 1 end def release_advisory_lock(lock_name) # :nodoc: - query_value("SELECT RELEASE_LOCK(#{quote(lock_name)})") == 1 + query_value("SELECT RELEASE_LOCK(#{quote(lock_name.to_s)})") == 1 end def native_database_types @@ -292,14 +292,10 @@ module ActiveRecord SQL end - def create_table(table_name, **options) #:nodoc: - super(table_name, options: "ENGINE=InnoDB", **options) - end - def bulk_change_table(table_name, operations) #:nodoc: sqls = operations.flat_map do |command, args| table, arguments = args.shift, args - method = :"#{command}_sql" + method = :"#{command}_for_alter" if respond_to?(method, true) send(method, table, *arguments) @@ -372,11 +368,11 @@ module ActiveRecord end def change_column(table_name, column_name, type, options = {}) #:nodoc: - execute("ALTER TABLE #{quote_table_name(table_name)} #{change_column_sql(table_name, column_name, type, options)}") + execute("ALTER TABLE #{quote_table_name(table_name)} #{change_column_for_alter(table_name, column_name, type, options)}") end def rename_column(table_name, column_name, new_column_name) #:nodoc: - execute("ALTER TABLE #{quote_table_name(table_name)} #{rename_column_sql(table_name, column_name, new_column_name)}") + execute("ALTER TABLE #{quote_table_name(table_name)} #{rename_column_for_alter(table_name, column_name, new_column_name)}") rename_column_indexes(table_name, column_name, new_column_name) end @@ -403,12 +399,13 @@ module ActiveRecord fk.constraint_name AS 'name', rc.update_rule AS 'on_update', rc.delete_rule AS 'on_delete' - FROM information_schema.key_column_usage fk - JOIN information_schema.referential_constraints rc + FROM information_schema.referential_constraints rc + JOIN information_schema.key_column_usage fk USING (constraint_schema, constraint_name) WHERE fk.referenced_column_name IS NOT NULL AND fk.table_schema = #{scope[:schema]} AND fk.table_name = #{scope[:name]} + AND rc.constraint_schema = #{scope[:schema]} AND rc.table_name = #{scope[:name]} SQL @@ -605,25 +602,6 @@ module ActiveRecord end end - def add_index_length(quoted_columns, **options) - if length = options[:length] - case length - when Hash - length = length.symbolize_keys - quoted_columns.each { |name, column| column << "(#{length[name]})" if length[name].present? } - when Integer - quoted_columns.each { |name, column| column << "(#{length})" } - end - end - - quoted_columns - end - - def add_options_for_index_columns(quoted_columns, **options) - quoted_columns = add_index_length(quoted_columns, options) - super - end - # See https://dev.mysql.com/doc/refman/5.7/en/error-messages-server.html ER_DUP_ENTRY = 1062 ER_NOT_NULL_VIOLATION = 1048 @@ -671,13 +649,7 @@ module ActiveRecord end end - def add_column_sql(table_name, column_name, type, options = {}) - td = create_table_definition(table_name) - cd = td.new_column_definition(column_name, type, options) - schema_creation.accept(AddColumnDefinition.new(cd)) - end - - def change_column_sql(table_name, column_name, type, options = {}) + def change_column_for_alter(table_name, column_name, type, options = {}) column = column_for(table_name, column_name) type ||= column.sql_type @@ -698,7 +670,7 @@ module ActiveRecord schema_creation.accept(ChangeColumnDefinition.new(cd, column.name)) end - def rename_column_sql(table_name, column_name, new_column_name) + def rename_column_for_alter(table_name, column_name, new_column_name) column = column_for(table_name, column_name) options = { default: column.default, @@ -712,31 +684,23 @@ module ActiveRecord schema_creation.accept(ChangeColumnDefinition.new(cd, column.name)) end - def remove_column_sql(table_name, column_name, type = nil, options = {}) - "DROP #{quote_column_name(column_name)}" - end - - def remove_columns_sql(table_name, *column_names) - column_names.map { |column_name| remove_column_sql(table_name, column_name) } - end - - def add_index_sql(table_name, column_name, options = {}) + def add_index_for_alter(table_name, column_name, options = {}) index_name, index_type, index_columns, _, index_algorithm, index_using = add_index_options(table_name, column_name, options) index_algorithm[0, 0] = ", " if index_algorithm.present? "ADD #{index_type} INDEX #{quote_column_name(index_name)} #{index_using} (#{index_columns})#{index_algorithm}" end - def remove_index_sql(table_name, options = {}) + def remove_index_for_alter(table_name, options = {}) index_name = index_name_for_remove(table_name, options) "DROP INDEX #{quote_column_name(index_name)}" end - def add_timestamps_sql(table_name, options = {}) - [add_column_sql(table_name, :created_at, :datetime, options), add_column_sql(table_name, :updated_at, :datetime, options)] + def add_timestamps_for_alter(table_name, options = {}) + [add_column_for_alter(table_name, :created_at, :datetime, options), add_column_for_alter(table_name, :updated_at, :datetime, options)] end - def remove_timestamps_sql(table_name, options = {}) - [remove_column_sql(table_name, :updated_at), remove_column_sql(table_name, :created_at)] + def remove_timestamps_for_alter(table_name, options = {}) + [remove_column_for_alter(table_name, :updated_at), remove_column_for_alter(table_name, :created_at)] end # MySQL is too stupid to create a temporary table for use subquery, so we have @@ -749,7 +713,8 @@ module ActiveRecord # to work with MySQL 5.7.6 which sets optimizer_switch='derived_merge=on' subselect.distinct unless select.limit || select.offset || select.orders.any? - Arel::SelectManager.new(subselect.as("__active_record_temp")).project(Arel.sql(key.name)) + key_name = quote_column_name(key.name) + Arel::SelectManager.new(subselect.as("__active_record_temp")).project(Arel.sql(key_name)) end def supports_rename_index? 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 da25e4863c..2ed4ad16ae 100644 --- a/activerecord/lib/active_record/connection_adapters/mysql/schema_definitions.rb +++ b/activerecord/lib/active_record/connection_adapters/mysql/schema_definitions.rb @@ -32,10 +32,6 @@ module ActiveRecord args.each { |name| column(name, :longtext, options) } end - 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 diff --git a/activerecord/lib/active_record/connection_adapters/mysql/schema_statements.rb b/activerecord/lib/active_record/connection_adapters/mysql/schema_statements.rb index a15c7d1787..ce50590651 100644 --- a/activerecord/lib/active_record/connection_adapters/mysql/schema_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/mysql/schema_statements.rb @@ -22,23 +22,26 @@ module ActiveRecord index_using = mysql_index_type end - indexes << IndexDefinition.new( + indexes << [ row[:Table], row[:Key_name], row[:Non_unique].to_i == 0, + [], + lengths: {}, + orders: {}, type: index_type, using: index_using, comment: row[:Index_comment].presence - ) + ] end - indexes.last.columns << row[:Column_name] - indexes.last.lengths.merge!(row[:Column_name] => row[:Sub_part].to_i) if row[:Sub_part] - indexes.last.orders.merge!(row[:Column_name] => :desc) if row[:Collation] == "D" + indexes.last[-2] << row[:Column_name] + indexes.last[-1][:lengths].merge!(row[:Column_name] => row[:Sub_part].to_i) if row[:Sub_part] + indexes.last[-1][:orders].merge!(row[:Column_name] => :desc) if row[:Collation] == "D" end end - indexes + indexes.map { |index| IndexDefinition.new(*index) } end def remove_column(table_name, column_name, type = nil, options = {}) @@ -103,6 +106,18 @@ module ActiveRecord super unless specifier == "RESTRICT" end + def add_index_length(quoted_columns, **options) + lengths = options_for_index_columns(options[:length]) + quoted_columns.each do |name, column| + column << "(#{lengths[name]})" if lengths[name].present? + end + end + + def add_options_for_index_columns(quoted_columns, **options) + quoted_columns = add_index_length(quoted_columns, options) + super + end + def data_source_sql(name = nil, type: nil) scope = quoted_scope(name, type: type) diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/decimal.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/decimal.rb index 879dba7afd..e7d33855c4 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/decimal.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/decimal.rb @@ -6,7 +6,7 @@ module ActiveRecord module OID # :nodoc: class Decimal < Type::Decimal # :nodoc: def infinity(options = {}) - BigDecimal.new("Infinity") * (options[:negative] ? -1 : 1) + BigDecimal("Infinity") * (options[:negative] ? -1 : 1) end end end diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/schema_creation.rb b/activerecord/lib/active_record/connection_adapters/postgresql/schema_creation.rb index 59f661da25..8e381a92cf 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/schema_creation.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/schema_creation.rb @@ -5,6 +5,18 @@ module ActiveRecord module PostgreSQL class SchemaCreation < AbstractAdapter::SchemaCreation # :nodoc: private + def visit_AlterTable(o) + super << o.constraint_validations.map { |fk| visit_ValidateConstraint fk }.join(" ") + end + + def visit_AddForeignKey(o) + super.dup.tap { |sql| sql << " NOT VALID" unless o.validate? } + end + + def visit_ValidateConstraint(name) + "VALIDATE CONSTRAINT #{quote_column_name(name)}" + end + def add_column_options!(sql, options) if options[:collation] sql << " COLLATE \"#{options[:collation]}\"" diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb b/activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb index 75622eb304..6047217fcd 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb @@ -95,10 +95,6 @@ module ActiveRecord args.each { |name| column(name, :int8range, options) } end - def json(*args, **options) - args.each { |name| column(name, :json, options) } - end - def jsonb(*args, **options) args.each { |name| column(name, :jsonb, options) } end @@ -192,6 +188,19 @@ module ActiveRecord class Table < ActiveRecord::ConnectionAdapters::Table include ColumnMethods end + + class AlterTable < ActiveRecord::ConnectionAdapters::AlterTable + attr_reader :constraint_validations + + def initialize(td) + super + @constraint_validations = [] + end + + def validate_constraint(name) + @constraint_validations << name + end + end end end end 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 15a1dfd102..bf5fbb30e1 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb @@ -109,6 +109,9 @@ module ActiveRecord using, expressions, where = inddef.scan(/ USING (\w+?) \((.+?)\)(?: WHERE (.+))?\z/).flatten + orders = {} + opclasses = {} + if indkey.include?(0) columns = expressions else @@ -119,21 +122,12 @@ module ActiveRecord AND a.attnum IN (#{indkey.join(",")}) SQL - orders = {} - opclasses = {} - # add info on sort order (only desc order is explicitly specified, asc is the default) # and non-default opclasses expressions.scan(/(\w+)(?: (?!DESC)(\w+))?(?: (DESC))?/).each do |column, opclass, desc| - opclasses[column] = opclass if opclass + opclasses[column] = opclass.to_sym if opclass orders[column] = :desc if desc end - - # Use a string for the opclass description (instead of a hash) when all columns - # have the same opclass specified. - if columns.count == opclasses.count && opclasses.values.uniq.count == 1 - opclasses = opclasses.values.first - end end IndexDefinition.new( @@ -142,9 +136,9 @@ module ActiveRecord unique, columns, orders: orders, + opclasses: opclasses, where: where, using: using.to_sym, - opclass: opclasses, comment: comment.presence ) end @@ -400,50 +394,23 @@ module ActiveRecord def change_column(table_name, column_name, type, options = {}) #:nodoc: clear_cache! - quoted_table_name = quote_table_name(table_name) - quoted_column_name = quote_column_name(column_name) - sql_type = type_to_sql(type, options) - sql = "ALTER TABLE #{quoted_table_name} ALTER COLUMN #{quoted_column_name} TYPE #{sql_type}".dup - if options[:collation] - sql << " COLLATE \"#{options[:collation]}\"" - end - if options[:using] - sql << " USING #{options[:using]}" - elsif options[:cast_as] - cast_as_type = type_to_sql(options[:cast_as], options) - sql << " USING CAST(#{quoted_column_name} AS #{cast_as_type})" - end - execute sql - - change_column_default(table_name, column_name, options[:default]) if options.key?(:default) - change_column_null(table_name, column_name, options[:null], options[:default]) if options.key?(:null) - change_column_comment(table_name, column_name, options[:comment]) if options.key?(:comment) + sqls, procs = change_column_for_alter(table_name, column_name, type, options) + execute "ALTER TABLE #{quote_table_name(table_name)} #{sqls.join(", ")}" + procs.each(&:call) end # Changes the default value of a table column. def change_column_default(table_name, column_name, default_or_changes) # :nodoc: - clear_cache! - column = column_for(table_name, column_name) - return unless column - - default = extract_new_default_value(default_or_changes) - alter_column_query = "ALTER TABLE #{quote_table_name(table_name)} ALTER COLUMN #{quote_column_name(column_name)} %s" - if default.nil? - # <tt>DEFAULT NULL</tt> results in the same behavior as <tt>DROP DEFAULT</tt>. However, PostgreSQL will - # cast the default to the columns type, which leaves us with a default like "default NULL::character varying". - execute alter_column_query % "DROP DEFAULT" - else - execute alter_column_query % "SET DEFAULT #{quote_default_expression(default, column)}" - end + execute "ALTER TABLE #{quote_table_name(table_name)} #{change_column_default_for_alter(table_name, column_name, default_or_changes)}" end def change_column_null(table_name, column_name, null, default = nil) #:nodoc: clear_cache! unless null || default.nil? column = column_for(table_name, column_name) - execute("UPDATE #{quote_table_name(table_name)} SET #{quote_column_name(column_name)}=#{quote_default_expression(default, column)} WHERE #{quote_column_name(column_name)} IS NULL") if column + execute "UPDATE #{quote_table_name(table_name)} SET #{quote_column_name(column_name)}=#{quote_default_expression(default, column)} WHERE #{quote_column_name(column_name)} IS NULL" if column end - execute("ALTER TABLE #{quote_table_name(table_name)} ALTER #{quote_column_name(column_name)} #{null ? 'DROP' : 'SET'} NOT NULL") + execute "ALTER TABLE #{quote_table_name(table_name)} #{change_column_null_for_alter(table_name, column_name, null, default)}" end # Adds comment for given table column or drops it if +comment+ is a +nil+ @@ -507,7 +474,7 @@ module ActiveRecord def foreign_keys(table_name) scope = quoted_scope(table_name) fk_info = exec_query(<<-SQL.strip_heredoc, "SCHEMA") - SELECT t2.oid::regclass::text AS to_table, a1.attname AS column, a2.attname AS primary_key, c.conname AS name, c.confupdtype AS on_update, c.confdeltype AS on_delete + SELECT t2.oid::regclass::text AS to_table, a1.attname AS column, a2.attname AS primary_key, c.conname AS name, c.confupdtype AS on_update, c.confdeltype AS on_delete, c.convalidated AS valid FROM pg_constraint c JOIN pg_class t1 ON c.conrelid = t1.oid JOIN pg_class t2 ON c.confrelid = t2.oid @@ -529,6 +496,7 @@ module ActiveRecord options[:on_delete] = extract_foreign_key_action(row["on_delete"]) options[:on_update] = extract_foreign_key_action(row["on_update"]) + options[:validate] = row["valid"] ForeignKeyDefinition.new(table_name, row["to_table"], options) end @@ -589,6 +557,43 @@ module ActiveRecord PostgreSQL::SchemaDumper.create(self, options) end + # Validates the given constraint. + # + # Validates the constraint named +constraint_name+ on +accounts+. + # + # validate_constraint :accounts, :constraint_name + def validate_constraint(table_name, constraint_name) + return unless supports_validate_constraints? + + at = create_alter_table table_name + at.validate_constraint constraint_name + + execute schema_creation.accept(at) + end + + # Validates the given foreign key. + # + # Validates the foreign key on +accounts.branch_id+. + # + # validate_foreign_key :accounts, :branches + # + # Validates the foreign key on +accounts.owner_id+. + # + # validate_foreign_key :accounts, column: :owner_id + # + # Validates the foreign key named +special_fk_name+ on the +accounts+ table. + # + # validate_foreign_key :accounts, name: :special_fk_name + # + # The +options+ hash accepts the same keys as SchemaStatements#add_foreign_key. + def validate_foreign_key(from_table, options_or_to_table = {}) + return unless supports_validate_constraints? + + fk_name_to_validate = foreign_key_for!(from_table, options_or_to_table).name + + validate_constraint from_table, fk_name_to_validate + end + private def schema_creation PostgreSQL::SchemaCreation.new(self) @@ -598,6 +603,10 @@ module ActiveRecord PostgreSQL::TableDefinition.new(*args) end + def create_alter_table(name) + PostgreSQL::AlterTable.new create_table_definition(name) + end + def new_column_from_field(table_name, field) column_name, type, default, notnull, oid, fmod, collation, comment = field type_metadata = fetch_type_metadata(column_name, type, oid.to_i, fmod.to_i) @@ -637,6 +646,66 @@ module ActiveRecord end end + def change_column_sql(table_name, column_name, type, options = {}) + quoted_column_name = quote_column_name(column_name) + sql_type = type_to_sql(type, options) + sql = "ALTER COLUMN #{quoted_column_name} TYPE #{sql_type}".dup + if options[:collation] + sql << " COLLATE \"#{options[:collation]}\"" + end + if options[:using] + sql << " USING #{options[:using]}" + elsif options[:cast_as] + cast_as_type = type_to_sql(options[:cast_as], options) + sql << " USING CAST(#{quoted_column_name} AS #{cast_as_type})" + end + + sql + end + + def change_column_for_alter(table_name, column_name, type, options = {}) + sqls = [change_column_sql(table_name, column_name, type, options)] + procs = [] + sqls << change_column_default_for_alter(table_name, column_name, options[:default]) if options.key?(:default) + sqls << change_column_null_for_alter(table_name, column_name, options[:null], options[:default]) if options.key?(:null) + procs << Proc.new { change_column_comment(table_name, column_name, options[:comment]) } if options.key?(:comment) + + [sqls, procs] + end + + + # Changes the default value of a table column. + def change_column_default_for_alter(table_name, column_name, default_or_changes) # :nodoc: + column = column_for(table_name, column_name) + return unless column + + default = extract_new_default_value(default_or_changes) + alter_column_query = "ALTER COLUMN #{quote_column_name(column_name)} %s" + if default.nil? + # <tt>DEFAULT NULL</tt> results in the same behavior as <tt>DROP DEFAULT</tt>. However, PostgreSQL will + # cast the default to the columns type, which leaves us with a default like "default NULL::character varying". + alter_column_query % "DROP DEFAULT" + else + alter_column_query % "SET DEFAULT #{quote_default_expression(default, column)}" + end + end + + def change_column_null_for_alter(table_name, column_name, null, default = nil) #:nodoc: + "ALTER #{quote_column_name(column_name)} #{null ? 'DROP' : 'SET'} NOT NULL" + end + + def add_index_opclass(quoted_columns, **options) + opclasses = options_for_index_columns(options[:opclass]) + quoted_columns.each do |name, column| + column << " #{opclasses[name]}" if opclasses[name].present? + end + end + + def add_options_for_index_columns(quoted_columns, **options) + quoted_columns = add_index_opclass(quoted_columns, options) + super + end + def data_source_sql(name = nil, type: nil) scope = quoted_scope(name, type: type) scope[:type] ||= "'r','v','m'" # (r)elation/table, (v)iew, (m)aterialized view diff --git a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb index 9397481c4c..23fc69d649 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb @@ -142,6 +142,10 @@ module ActiveRecord true end + def supports_validate_constraints? + true + end + def supports_views? true end @@ -386,24 +390,6 @@ module ActiveRecord end private - - def add_index_opclass(column_names, options = {}) - opclass = - if options[:opclass].is_a?(Hash) - options[:opclass].symbolize_keys - else - Hash.new { |hash, column| hash[column] = options[:opclass].to_s } - end - column_names.each do |name, column| - column << " #{opclass[name]}" if opclass[name].present? - end - end - - def add_options_for_index_columns(quoted_columns, **options) - quoted_columns = add_index_opclass(quoted_columns, options) - super - end - # See https://www.postgresql.org/docs/current/static/errcodes-appendix.html VALUE_LIMIT_VIOLATION = "22001" NUMERIC_VALUE_OUT_OF_RANGE = "22003" diff --git a/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb b/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb index daece2bffd..5a4540f6ad 100644 --- a/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb @@ -60,7 +60,7 @@ module ActiveRecord include SQLite3::SchemaStatements NATIVE_DATABASE_TYPES = { - primary_key: "INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL", + primary_key: "integer PRIMARY KEY AUTOINCREMENT NOT NULL", string: { name: "varchar" }, text: { name: "text" }, integer: { name: "integer" }, @@ -70,7 +70,8 @@ module ActiveRecord time: { name: "time" }, date: { name: "date" }, binary: { name: "blob" }, - boolean: { name: "boolean" } + boolean: { name: "boolean" }, + json: { name: "json" }, } ## @@ -134,6 +135,10 @@ module ActiveRecord true end + def supports_json? + true + end + def supports_multi_insert? sqlite_version >= "3.7.11" end @@ -292,7 +297,7 @@ module ActiveRecord end def add_column(table_name, column_name, type, options = {}) #:nodoc: - if valid_alter_table_type?(type) + if valid_alter_table_type?(type) && !options[:primary_key] super(table_name, column_name, type, options) else alter_table(table_name) do |definition| @@ -369,6 +374,10 @@ module ActiveRecord end private + def initialize_type_map(m = type_map) + super + register_class_with_limit m, %r(int)i, SQLite3Integer + end def table_structure(table_name) structure = exec_query("PRAGMA table_info(#{quote_table_name(table_name)})", "SCHEMA") @@ -398,18 +407,21 @@ module ActiveRecord options[:id] = false create_table(to, options) do |definition| @definition = definition - @definition.primary_key(from_primary_key) if from_primary_key.present? + if from_primary_key.is_a?(Array) + @definition.primary_keys from_primary_key + end columns(from).each do |column| column_name = options[:rename] ? (options[:rename][column.name] || options[:rename][column.name.to_sym] || column.name) : column.name - next if column_name == from_primary_key @definition.column(column_name, column.type, limit: column.limit, default: column.default, precision: column.precision, scale: column.scale, - null: column.null, collation: column.collation) + null: column.null, collation: column.collation, + primary_key: column_name == from_primary_key + ) end yield @definition if block_given? end @@ -422,6 +434,9 @@ module ActiveRecord def copy_table_indexes(from, to, rename = {}) indexes(from).each do |index| name = index.name + # indexes sqlite creates for internal use start with `sqlite_` and + # don't need to be copied + next if name.starts_with?("sqlite_") if to == "a#{from}" name = "t#{name}" elsif from == "a#{to}" @@ -524,6 +539,17 @@ module ActiveRecord def configure_connection execute("PRAGMA foreign_keys = ON", "SCHEMA") end + + class SQLite3Integer < Type::Integer # :nodoc: + private + def _limit + # INTEGER storage class can be stored 8 bytes value. + # See https://www.sqlite.org/datatype3.html#storage_classes_and_datatypes + limit || 8 + end + end + + ActiveRecord::Type.register(:integer, SQLite3Integer, adapter: :sqlite3) end ActiveSupport.run_load_hooks(:active_record_sqlite3adapter, SQLite3Adapter) end diff --git a/activerecord/lib/active_record/core.rb b/activerecord/lib/active_record/core.rb index 481159e501..88810cb328 100644 --- a/activerecord/lib/active_record/core.rb +++ b/activerecord/lib/active_record/core.rb @@ -18,6 +18,13 @@ module ActiveRecord mattr_accessor :logger, instance_writer: false ## + # :singleton-method: + # + # Specifies if the methods calling database queries should be logged below + # their relevant queries. Defaults to false. + mattr_accessor :verbose_query_logs, instance_writer: false, default: false + + ## # Contains the database configuration - as is typically stored in config/database.yml - # as a Hash. # diff --git a/activerecord/lib/active_record/inheritance.rb b/activerecord/lib/active_record/inheritance.rb index 0715c11473..f3fe610c09 100644 --- a/activerecord/lib/active_record/inheritance.rb +++ b/activerecord/lib/active_record/inheritance.rb @@ -47,14 +47,13 @@ module ActiveRecord # Determines if one of the attributes passed in is the inheritance column, # and if the inheritance column is attr accessible, it initializes an # instance of the given subclass instead of the base class. - def new(*args, &block) + def new(attributes = nil, &block) if abstract_class? || self == Base raise NotImplementedError, "#{self} is an abstract class and cannot be instantiated." end - attrs = args.first if has_attribute?(inheritance_column) - subclass = subclass_from_attributes(attrs) + subclass = subclass_from_attributes(attributes) if subclass.nil? && base_class == self subclass = subclass_from_attributes(column_defaults) @@ -62,7 +61,7 @@ module ActiveRecord end if subclass && subclass != self - subclass.new(*args, &block) + subclass.new(attributes, &block) else super end diff --git a/activerecord/lib/active_record/log_subscriber.rb b/activerecord/lib/active_record/log_subscriber.rb index 405f3a30c6..9234029c22 100644 --- a/activerecord/lib/active_record/log_subscriber.rb +++ b/activerecord/lib/active_record/log_subscriber.rb @@ -90,6 +90,47 @@ module ActiveRecord def logger ActiveRecord::Base.logger end + + def debug(progname = nil, &block) + return unless super + + if ActiveRecord::Base.verbose_query_logs + log_query_source + end + end + + def log_query_source + source_line, line_number = extract_callstack(caller_locations) + + if source_line + if defined?(::Rails.root) + app_root = "#{::Rails.root.to_s}/".freeze + source_line = source_line.sub(app_root, "") + end + + logger.debug(" ↳ #{ source_line }:#{ line_number }") + end + end + + def extract_callstack(callstack) + line = callstack.find do |frame| + frame.absolute_path && !ignored_callstack(frame.absolute_path) + end + + offending_line = line || callstack.first + + [ + offending_line.path, + offending_line.lineno + ] + end + + RAILS_GEM_ROOT = File.expand_path("../../../..", __FILE__) + "/" + + def ignored_callstack(path) + path.start_with?(RAILS_GEM_ROOT) || + path.start_with?(RbConfig::CONFIG["rubylibdir"]) + end end end diff --git a/activerecord/lib/active_record/migration.rb b/activerecord/lib/active_record/migration.rb index 15e9c09ffb..f6648a4e3d 100644 --- a/activerecord/lib/active_record/migration.rb +++ b/activerecord/lib/active_record/migration.rb @@ -1045,7 +1045,7 @@ module ActiveRecord new(:up, migrations(migrations_paths), nil) end - def get_all_versions(connection = Base.connection) + def get_all_versions if SchemaMigration.table_exists? SchemaMigration.all_versions.map(&:to_i) else @@ -1053,12 +1053,13 @@ module ActiveRecord end end - def current_version(connection = Base.connection) - get_all_versions(connection).max || 0 + def current_version(connection = nil) + get_all_versions.max || 0 + rescue ActiveRecord::NoDatabaseError end - def needs_migration?(connection = Base.connection) - (migrations(migrations_paths).collect(&:version) - get_all_versions(connection)).size > 0 + def needs_migration?(connection = nil) + (migrations(migrations_paths).collect(&:version) - get_all_versions).size > 0 end def any_migrations? @@ -1276,10 +1277,10 @@ module ActiveRecord end def validate(migrations) - name , = migrations.group_by(&:name).find { |_, v| v.length > 1 } + name, = migrations.group_by(&:name).find { |_, v| v.length > 1 } raise DuplicateMigrationNameError.new(name) if name - version , = migrations.group_by(&:version).find { |_, v| v.length > 1 } + version, = migrations.group_by(&:version).find { |_, v| v.length > 1 } raise DuplicateMigrationVersionError.new(version) if version end diff --git a/activerecord/lib/active_record/migration/compatibility.rb b/activerecord/lib/active_record/migration/compatibility.rb index c979aaf0a0..7ae8073478 100644 --- a/activerecord/lib/active_record/migration/compatibility.rb +++ b/activerecord/lib/active_record/migration/compatibility.rb @@ -16,6 +16,26 @@ module ActiveRecord V5_2 = Current class V5_1 < V5_2 + def change_column(table_name, column_name, type, options = {}) + if adapter_name == "PostgreSQL" + clear_cache! + sql = connection.send(:change_column_sql, table_name, column_name, type, options) + execute "ALTER TABLE #{quote_table_name(table_name)} #{sql}" + change_column_default(table_name, column_name, options[:default]) if options.key?(:default) + change_column_null(table_name, column_name, options[:null], options[:default]) if options.key?(:null) + change_column_comment(table_name, column_name, options[:comment]) if options.key?(:comment) + else + super + end + end + + def create_table(table_name, options = {}) + if adapter_name == "Mysql2" + super(table_name, options: "ENGINE=InnoDB", **options) + else + super + end + end end class V5_0 < V5_1 diff --git a/activerecord/lib/active_record/model_schema.rb b/activerecord/lib/active_record/model_schema.rb index 1941d3d5ea..fa7537c1a3 100644 --- a/activerecord/lib/active_record/model_schema.rb +++ b/activerecord/lib/active_record/model_schema.rb @@ -87,19 +87,6 @@ module ActiveRecord # Sets the name of the internal metadata table. ## - # :singleton-method: protected_environments - # :call-seq: protected_environments - # - # The array of names of environments where destructive actions should be prohibited. By default, - # the value is <tt>["production"]</tt>. - - ## - # :singleton-method: protected_environments= - # :call-seq: protected_environments=(environments) - # - # Sets an array of names of environments where destructive actions should be prohibited. - - ## # :singleton-method: pluralize_table_names # :call-seq: pluralize_table_names # @@ -122,9 +109,9 @@ module ActiveRecord class_attribute :table_name_suffix, instance_writer: false, default: "" class_attribute :schema_migrations_table_name, instance_accessor: false, default: "schema_migrations" class_attribute :internal_metadata_table_name, instance_accessor: false, default: "ar_internal_metadata" - class_attribute :protected_environments, instance_accessor: false, default: [ "production" ] class_attribute :pluralize_table_names, instance_writer: false, default: true + self.protected_environments = ["production"] self.inheritance_column = "type" self.ignored_columns = [].freeze @@ -238,6 +225,21 @@ module ActiveRecord (parents.detect { |p| p.respond_to?(:table_name_suffix) } || self).table_name_suffix end + # The array of names of environments where destructive actions should be prohibited. By default, + # the value is <tt>["production"]</tt>. + def protected_environments + if defined?(@protected_environments) + @protected_environments + else + superclass.protected_environments + end + end + + # Sets an array of names of environments where destructive actions should be prohibited. + def protected_environments=(environments) + @protected_environments = environments.map(&:to_s) + end + # Defines the name of the table column which will store the class name on single-table # inheritance situations. # @@ -423,7 +425,7 @@ module ActiveRecord # end def reset_column_information connection.clear_cache! - undefine_attribute_methods + ([self] + descendants).each(&:undefine_attribute_methods) connection.schema_cache.clear_data_source_cache!(table_name) reload_schema_from_cache diff --git a/activerecord/lib/active_record/persistence.rb b/activerecord/lib/active_record/persistence.rb index a13b0d0181..462e5e7aaf 100644 --- a/activerecord/lib/active_record/persistence.rb +++ b/activerecord/lib/active_record/persistence.rb @@ -402,11 +402,7 @@ module ActiveRecord verify_readonly_attribute(name) public_send("#{name}=", value) - if has_changes_to_save? - save(validate: false) - else - true - end + save(validate: false) end # Updates the attributes of the model from the passed-in hash and saves the diff --git a/activerecord/lib/active_record/railtie.rb b/activerecord/lib/active_record/railtie.rb index 9ee8425e1b..4538ed6a5f 100644 --- a/activerecord/lib/active_record/railtie.rb +++ b/activerecord/lib/active_record/railtie.rb @@ -90,12 +90,15 @@ module ActiveRecord filename = File.join(app.config.paths["db"].first, "schema_cache.yml") if File.file?(filename) + current_version = ActiveRecord::Migrator.current_version + next if current_version.nil? + cache = YAML.load(File.read(filename)) - if cache.version == ActiveRecord::Migrator.current_version + if cache.version == current_version connection.schema_cache = cache connection_pool.schema_cache = cache.dup else - warn "Ignoring db/schema_cache.yml because it has expired. The current schema version is #{ActiveRecord::Migrator.current_version}, but the one in the cache is #{cache.version}." + warn "Ignoring db/schema_cache.yml because it has expired. The current schema version is #{current_version}, but the one in the cache is #{cache.version}." end end end diff --git a/activerecord/lib/active_record/relation.rb b/activerecord/lib/active_record/relation.rb index 081ef5771f..4df3864d07 100644 --- a/activerecord/lib/active_record/relation.rb +++ b/activerecord/lib/active_record/relation.rb @@ -10,7 +10,7 @@ module ActiveRecord SINGLE_VALUE_METHODS = [:limit, :offset, :lock, :readonly, :reordering, :reverse_order, :distinct, :create_with, :skip_query_cache] CLAUSE_METHODS = [:where, :having, :from] - INVALID_METHODS_FOR_DELETE_ALL = [:limit, :distinct, :offset, :group, :having] + INVALID_METHODS_FOR_DELETE_ALL = [:distinct, :group, :having] VALUE_METHODS = MULTI_VALUE_METHODS + SINGLE_VALUE_METHODS + CLAUSE_METHODS @@ -52,8 +52,8 @@ module ActiveRecord # # user = users.new { |user| user.name = 'Oscar' } # user.name # => Oscar - def new(*args, &block) - scoping { @klass.new(*args, &block) } + def new(attributes = nil, &block) + scoping { klass.new(scope_for_create(attributes), &block) } end alias build new @@ -77,8 +77,12 @@ module ActiveRecord # # users.create(name: nil) # validation on name # # => #<User id: nil, name: nil, ...> - def create(*args, &block) - scoping { @klass.create(*args, &block) } + def create(attributes = nil, &block) + if attributes.is_a?(Array) + attributes.collect { |attr| create(attr, &block) } + else + scoping { klass.create(scope_for_create(attributes), &block) } + end end # Similar to #create, but calls @@ -87,8 +91,12 @@ module ActiveRecord # # Expects arguments in the same format as # {ActiveRecord::Base.create!}[rdoc-ref:Persistence::ClassMethods#create!]. - def create!(*args, &block) - scoping { @klass.create!(*args, &block) } + def create!(attributes = nil, &block) + if attributes.is_a?(Array) + attributes.collect { |attr| create!(attr, &block) } + else + scoping { klass.create!(scope_for_create(attributes), &block) } + end end def first_or_create(attributes = nil, &block) # :nodoc: @@ -306,10 +314,10 @@ module ActiveRecord stmt = Arel::UpdateManager.new - stmt.set Arel.sql(@klass.send(:sanitize_sql_for_assignment, updates)) + stmt.set Arel.sql(@klass.sanitize_sql_for_assignment(updates)) stmt.table(table) - if has_join_values? + if has_join_values? || offset_value @klass.connection.join_to_update(stmt, arel, arel_attribute(primary_key)) else stmt.key = arel_attribute(primary_key) @@ -357,8 +365,8 @@ module ActiveRecord # # If an invalid method is supplied, #delete_all raises an ActiveRecordError: # - # Post.limit(100).delete_all - # # => ActiveRecord::ActiveRecordError: delete_all doesn't support limit + # Post.distinct.delete_all + # # => ActiveRecord::ActiveRecordError: delete_all doesn't support distinct def delete_all invalid_methods = INVALID_METHODS_FOR_DELETE_ALL.select do |method| value = get_value(method) @@ -376,7 +384,7 @@ module ActiveRecord stmt = Arel::DeleteManager.new stmt.from(table) - if has_join_values? + if has_join_values? || has_limit_or_offset? @klass.connection.join_to_delete(stmt, arel, arel_attribute(primary_key)) else stmt.wheres = arel.constraints @@ -440,8 +448,10 @@ module ActiveRecord where_clause.to_h(relation_table_name) end - def scope_for_create - where_values_hash.merge!(create_with_value.stringify_keys) + def scope_for_create(attributes = nil) + scope = where_values_hash.merge!(create_with_value.stringify_keys) + scope.merge!(attributes) if attributes + scope end # Returns true if relation needs eager loading. diff --git a/activerecord/lib/active_record/relation/calculations.rb b/activerecord/lib/active_record/relation/calculations.rb index d49472fc70..cb0b06cfdc 100644 --- a/activerecord/lib/active_record/relation/calculations.rb +++ b/activerecord/lib/active_record/relation/calculations.rb @@ -217,7 +217,7 @@ module ActiveRecord if operation == "count" column_name ||= select_for_count if column_name == :all - if distinct && (group_values.any? || !(has_limit_or_offset? && order_values.any?)) + if distinct && (group_values.any? || select_values.empty? && order_values.empty?) column_name = primary_key end elsif column_name =~ /\s*DISTINCT[\s(]+/i @@ -249,7 +249,7 @@ module ActiveRecord def execute_simple_calculation(operation, column_name, distinct) #:nodoc: column_alias = column_name - if operation == "count" && has_limit_or_offset? + if operation == "count" && (column_name == :all && distinct || has_limit_or_offset?) # Shortcut when limit is zero. return 0 if limit_value == 0 @@ -391,14 +391,12 @@ module ActiveRecord end def build_count_subquery(relation, column_name, distinct) - relation.select_values = [ - if column_name == :all - distinct ? table[Arel.star] : Arel.sql(FinderMethods::ONE_AS_ONE) - else - column_alias = Arel.sql("count_column") - aggregate_column(column_name).as(column_alias) - end - ] + if column_name == :all + relation.select_values = [ Arel.sql(FinderMethods::ONE_AS_ONE) ] unless distinct + else + column_alias = Arel.sql("count_column") + relation.select_values = [ aggregate_column(column_name).as(column_alias) ] + end subquery = relation.arel.as(Arel.sql("subquery_for_count")) select_value = operation_over_aggregate_column(column_alias || Arel.star, "count", false) diff --git a/activerecord/lib/active_record/relation/query_methods.rb b/activerecord/lib/active_record/relation/query_methods.rb index 749223422f..0296101f81 100644 --- a/activerecord/lib/active_record/relation/query_methods.rb +++ b/activerecord/lib/active_record/relation/query_methods.rb @@ -444,15 +444,13 @@ module ActiveRecord # def left_outer_joins(*args) check_if_method_has_arguments!(__callee__, args) - - args.compact! - args.flatten! - spawn.left_outer_joins!(*args) end alias :left_joins :left_outer_joins def left_outer_joins!(*args) # :nodoc: + args.compact! + args.flatten! self.left_outer_joins_values += args self end @@ -1040,8 +1038,8 @@ module ActiveRecord def build_select(arel) if select_values.any? arel.project(*arel_columns(select_values.uniq)) - elsif @klass.ignored_columns.any? - arel.project(*arel_columns(@klass.column_names)) + elsif klass.ignored_columns.any? + arel.project(*klass.column_names.map { |field| arel_attribute(field) }) else arel.project(table[Arel.star]) end @@ -1121,7 +1119,7 @@ module ActiveRecord def preprocess_order_args(order_args) order_args.map! do |arg| - klass.send(:sanitize_sql_for_order, arg) + klass.sanitize_sql_for_order(arg) end order_args.flatten! diff --git a/activerecord/lib/active_record/relation/where_clause.rb b/activerecord/lib/active_record/relation/where_clause.rb index 752bb38481..a502713e56 100644 --- a/activerecord/lib/active_record/relation/where_clause.rb +++ b/activerecord/lib/active_record/relation/where_clause.rb @@ -47,7 +47,7 @@ module ActiveRecord end def to_h(table_name = nil) - equalities = predicates.grep(Arel::Nodes::Equality) + equalities = equalities(predicates) if table_name equalities = equalities.select do |node| node.left.relation.name == table_name @@ -90,6 +90,20 @@ module ActiveRecord end private + def equalities(predicates) + equalities = [] + + predicates.each do |node| + case node + when Arel::Nodes::Equality + equalities << node + when Arel::Nodes::And + equalities.concat equalities(node.children) + end + end + + equalities + end def predicates_unreferenced_by(other) predicates.reject do |n| @@ -121,7 +135,7 @@ module ActiveRecord end def except_predicates(columns) - self.predicates.reject do |node| + predicates.reject do |node| case node when Arel::Nodes::Between, Arel::Nodes::In, Arel::Nodes::NotIn, Arel::Nodes::Equality, Arel::Nodes::NotEqual, Arel::Nodes::LessThan, Arel::Nodes::LessThanOrEqual, Arel::Nodes::GreaterThan, Arel::Nodes::GreaterThanOrEqual subrelation = (node.left.kind_of?(Arel::Attributes::Attribute) ? node.left : node.right) diff --git a/activerecord/lib/active_record/relation/where_clause_factory.rb b/activerecord/lib/active_record/relation/where_clause_factory.rb index 1374785354..4ae94f4bfe 100644 --- a/activerecord/lib/active_record/relation/where_clause_factory.rb +++ b/activerecord/lib/active_record/relation/where_clause_factory.rb @@ -11,7 +11,7 @@ module ActiveRecord def build(opts, other) case opts when String, Array - parts = [klass.send(:sanitize_sql, other.empty? ? opts : ([opts] + other))] + parts = [klass.sanitize_sql(other.empty? ? opts : ([opts] + other))] when Hash attributes = predicate_builder.resolve_column_aliases(opts) attributes = klass.send(:expand_hash_conditions_for_aggregates, attributes) diff --git a/activerecord/lib/active_record/sanitization.rb b/activerecord/lib/active_record/sanitization.rb index 21f8bc7cb2..58da106092 100644 --- a/activerecord/lib/active_record/sanitization.rb +++ b/activerecord/lib/active_record/sanitization.rb @@ -5,80 +5,135 @@ module ActiveRecord extend ActiveSupport::Concern module ClassMethods - private - - # Accepts an array or string of SQL conditions and sanitizes - # them into a valid SQL fragment for a WHERE clause. - # - # sanitize_sql_for_conditions(["name=? and group_id=?", "foo'bar", 4]) - # # => "name='foo''bar' and group_id=4" - # - # sanitize_sql_for_conditions(["name=:name and group_id=:group_id", name: "foo'bar", group_id: 4]) - # # => "name='foo''bar' and group_id='4'" - # - # sanitize_sql_for_conditions(["name='%s' and group_id='%s'", "foo'bar", 4]) - # # => "name='foo''bar' and group_id='4'" - # - # sanitize_sql_for_conditions("name='foo''bar' and group_id='4'") - # # => "name='foo''bar' and group_id='4'" - def sanitize_sql_for_conditions(condition) # :doc: - return nil if condition.blank? - - case condition - when Array; sanitize_sql_array(condition) - else condition - end + # Accepts an array or string of SQL conditions and sanitizes + # them into a valid SQL fragment for a WHERE clause. + # + # sanitize_sql_for_conditions(["name=? and group_id=?", "foo'bar", 4]) + # # => "name='foo''bar' and group_id=4" + # + # sanitize_sql_for_conditions(["name=:name and group_id=:group_id", name: "foo'bar", group_id: 4]) + # # => "name='foo''bar' and group_id='4'" + # + # sanitize_sql_for_conditions(["name='%s' and group_id='%s'", "foo'bar", 4]) + # # => "name='foo''bar' and group_id='4'" + # + # sanitize_sql_for_conditions("name='foo''bar' and group_id='4'") + # # => "name='foo''bar' and group_id='4'" + def sanitize_sql_for_conditions(condition) + return nil if condition.blank? + + case condition + when Array; sanitize_sql_array(condition) + else condition end - alias :sanitize_sql :sanitize_sql_for_conditions - - # Accepts an array, hash, or string of SQL conditions and sanitizes - # them into a valid SQL fragment for a SET clause. - # - # sanitize_sql_for_assignment(["name=? and group_id=?", nil, 4]) - # # => "name=NULL and group_id=4" - # - # sanitize_sql_for_assignment(["name=:name and group_id=:group_id", name: nil, group_id: 4]) - # # => "name=NULL and group_id=4" - # - # Post.send(:sanitize_sql_for_assignment, { name: nil, group_id: 4 }) - # # => "`posts`.`name` = NULL, `posts`.`group_id` = 4" - # - # sanitize_sql_for_assignment("name=NULL and group_id='4'") - # # => "name=NULL and group_id='4'" - def sanitize_sql_for_assignment(assignments, default_table_name = table_name) # :doc: - case assignments - when Array; sanitize_sql_array(assignments) - when Hash; sanitize_sql_hash_for_assignment(assignments, default_table_name) - else assignments - end + end + alias :sanitize_sql :sanitize_sql_for_conditions + + # Accepts an array, hash, or string of SQL conditions and sanitizes + # them into a valid SQL fragment for a SET clause. + # + # sanitize_sql_for_assignment(["name=? and group_id=?", nil, 4]) + # # => "name=NULL and group_id=4" + # + # sanitize_sql_for_assignment(["name=:name and group_id=:group_id", name: nil, group_id: 4]) + # # => "name=NULL and group_id=4" + # + # Post.sanitize_sql_for_assignment({ name: nil, group_id: 4 }) + # # => "`posts`.`name` = NULL, `posts`.`group_id` = 4" + # + # sanitize_sql_for_assignment("name=NULL and group_id='4'") + # # => "name=NULL and group_id='4'" + def sanitize_sql_for_assignment(assignments, default_table_name = table_name) + case assignments + when Array; sanitize_sql_array(assignments) + when Hash; sanitize_sql_hash_for_assignment(assignments, default_table_name) + else assignments end - - # Accepts an array, or string of SQL conditions and sanitizes - # them into a valid SQL fragment for an ORDER clause. - # - # sanitize_sql_for_order(["field(id, ?)", [1,3,2]]) - # # => "field(id, 1,3,2)" - # - # sanitize_sql_for_order("id ASC") - # # => "id ASC" - def sanitize_sql_for_order(condition) # :doc: - if condition.is_a?(Array) && condition.first.to_s.include?("?") - enforce_raw_sql_whitelist([condition.first], - whitelist: AttributeMethods::ClassMethods::COLUMN_NAME_ORDER_WHITELIST - ) - - # Ensure we aren't dealing with a subclass of String that might - # override methods we use (eg. Arel::Nodes::SqlLiteral). - if condition.first.kind_of?(String) && !condition.first.instance_of?(String) - condition = [String.new(condition.first), *condition[1..-1]] - end - - Arel.sql(sanitize_sql_array(condition)) - else - condition + end + + # Accepts an array, or string of SQL conditions and sanitizes + # them into a valid SQL fragment for an ORDER clause. + # + # sanitize_sql_for_order(["field(id, ?)", [1,3,2]]) + # # => "field(id, 1,3,2)" + # + # sanitize_sql_for_order("id ASC") + # # => "id ASC" + def sanitize_sql_for_order(condition) + if condition.is_a?(Array) && condition.first.to_s.include?("?") + enforce_raw_sql_whitelist([condition.first], + whitelist: AttributeMethods::ClassMethods::COLUMN_NAME_ORDER_WHITELIST + ) + + # Ensure we aren't dealing with a subclass of String that might + # override methods we use (eg. Arel::Nodes::SqlLiteral). + if condition.first.kind_of?(String) && !condition.first.instance_of?(String) + condition = [String.new(condition.first), *condition[1..-1]] end + + Arel.sql(sanitize_sql_array(condition)) + else + condition end + end + + # Sanitizes a hash of attribute/value pairs into SQL conditions for a SET clause. + # + # sanitize_sql_hash_for_assignment({ status: nil, group_id: 1 }, "posts") + # # => "`posts`.`status` = NULL, `posts`.`group_id` = 1" + def sanitize_sql_hash_for_assignment(attrs, table) + c = connection + attrs.map do |attr, value| + type = type_for_attribute(attr.to_s) + value = type.serialize(type.cast(value)) + "#{c.quote_table_name_for_assignment(table, attr)} = #{c.quote(value)}" + end.join(", ") + end + + # Sanitizes a +string+ so that it is safe to use within an SQL + # LIKE statement. This method uses +escape_character+ to escape all occurrences of "\", "_" and "%". + # + # sanitize_sql_like("100%") + # # => "100\\%" + # + # sanitize_sql_like("snake_cased_string") + # # => "snake\\_cased\\_string" + # + # sanitize_sql_like("100%", "!") + # # => "100!%" + # + # sanitize_sql_like("snake_cased_string", "!") + # # => "snake!_cased!_string" + def sanitize_sql_like(string, escape_character = "\\") + pattern = Regexp.union(escape_character, "%", "_") + string.gsub(pattern) { |x| [escape_character, x].join } + end + + # Accepts an array of conditions. The array has each value + # sanitized and interpolated into the SQL statement. + # + # sanitize_sql_array(["name=? and group_id=?", "foo'bar", 4]) + # # => "name='foo''bar' and group_id=4" + # + # sanitize_sql_array(["name=:name and group_id=:group_id", name: "foo'bar", group_id: 4]) + # # => "name='foo''bar' and group_id=4" + # + # sanitize_sql_array(["name='%s' and group_id='%s'", "foo'bar", 4]) + # # => "name='foo''bar' and group_id='4'" + def sanitize_sql_array(ary) + statement, *values = ary + if values.first.is_a?(Hash) && /:\w+/.match?(statement) + replace_named_bind_variables(statement, values.first) + elsif statement.include?("?") + replace_bind_variables(statement, values) + elsif statement.blank? + statement + else + statement % values.collect { |value| connection.quote_string(value.to_s) } + end + end + private # Accepts a hash of SQL conditions and replaces those attributes # that correspond to a {#composed_of}[rdoc-ref:Aggregations::ClassMethods#composed_of] # relationship with their expanded aggregate attribute values. @@ -113,62 +168,6 @@ module ActiveRecord expanded_attrs end - # Sanitizes a hash of attribute/value pairs into SQL conditions for a SET clause. - # - # sanitize_sql_hash_for_assignment({ status: nil, group_id: 1 }, "posts") - # # => "`posts`.`status` = NULL, `posts`.`group_id` = 1" - def sanitize_sql_hash_for_assignment(attrs, table) # :doc: - c = connection - attrs.map do |attr, value| - type = type_for_attribute(attr.to_s) - value = type.serialize(type.cast(value)) - "#{c.quote_table_name_for_assignment(table, attr)} = #{c.quote(value)}" - end.join(", ") - end - - # Sanitizes a +string+ so that it is safe to use within an SQL - # LIKE statement. This method uses +escape_character+ to escape all occurrences of "\", "_" and "%". - # - # sanitize_sql_like("100%") - # # => "100\\%" - # - # sanitize_sql_like("snake_cased_string") - # # => "snake\\_cased\\_string" - # - # sanitize_sql_like("100%", "!") - # # => "100!%" - # - # sanitize_sql_like("snake_cased_string", "!") - # # => "snake!_cased!_string" - def sanitize_sql_like(string, escape_character = "\\") # :doc: - pattern = Regexp.union(escape_character, "%", "_") - string.gsub(pattern) { |x| [escape_character, x].join } - end - - # Accepts an array of conditions. The array has each value - # sanitized and interpolated into the SQL statement. - # - # sanitize_sql_array(["name=? and group_id=?", "foo'bar", 4]) - # # => "name='foo''bar' and group_id=4" - # - # sanitize_sql_array(["name=:name and group_id=:group_id", name: "foo'bar", group_id: 4]) - # # => "name='foo''bar' and group_id=4" - # - # sanitize_sql_array(["name='%s' and group_id='%s'", "foo'bar", 4]) - # # => "name='foo''bar' and group_id='4'" - def sanitize_sql_array(ary) # :doc: - statement, *values = ary - if values.first.is_a?(Hash) && /:\w+/.match?(statement) - replace_named_bind_variables(statement, values.first) - elsif statement.include?("?") - replace_bind_variables(statement, values) - elsif statement.blank? - statement - else - statement % values.collect { |value| connection.quote_string(value.to_s) } - end - end - def replace_bind_variables(statement, values) raise_if_bind_arity_mismatch(statement, statement.count("?"), values.size) bound = values.dup diff --git a/activerecord/lib/active_record/schema_dumper.rb b/activerecord/lib/active_record/schema_dumper.rb index 8cb2851557..16ccba6b6c 100644 --- a/activerecord/lib/active_record/schema_dumper.rb +++ b/activerecord/lib/active_record/schema_dumper.rb @@ -184,12 +184,12 @@ HEADER "name: #{index.name.inspect}", ] index_parts << "unique: true" if index.unique - index_parts << "length: { #{format_options(index.lengths)} }" if index.lengths.present? - index_parts << "order: { #{format_options(index.orders)} }" if index.orders.present? + index_parts << "length: #{format_index_parts(index.lengths)}" if index.lengths.present? + index_parts << "order: #{format_index_parts(index.orders)}" if index.orders.present? + index_parts << "opclass: #{format_index_parts(index.opclasses)}" if index.opclasses.present? index_parts << "where: #{index.where.inspect}" if index.where index_parts << "using: #{index.using.inspect}" if !@connection.default_index_type?(index) index_parts << "type: #{index.type.inspect}" if index.type - index_parts << "opclass: #{index.opclass.inspect}" if index.opclass.present? index_parts << "comment: #{index.comment.inspect}" if index.comment index_parts end @@ -232,6 +232,14 @@ HEADER options.map { |key, value| "#{key}: #{value.inspect}" }.join(", ") end + def format_index_parts(options) + if options.is_a?(Hash) + "{ #{format_options(options)} }" + else + options.inspect + end + end + def remove_prefix_and_suffix(table) prefix = Regexp.escape(@options[:table_name_prefix].to_s) suffix = Regexp.escape(@options[:table_name_suffix].to_s) |