diff options
Diffstat (limited to 'activerecord/lib/active_record')
16 files changed, 133 insertions, 43 deletions
diff --git a/activerecord/lib/active_record/associations/has_one_association.rb b/activerecord/lib/active_record/associations/has_one_association.rb index dfcb116392..1d2e8667e4 100644 --- a/activerecord/lib/active_record/associations/has_one_association.rb +++ b/activerecord/lib/active_record/associations/has_one_association.rb @@ -34,8 +34,7 @@ module ActiveRecord when :destroy target.destroy when :nullify - target.send("#{reflection.foreign_key}=", nil) - target.save(:validations => false) + target.update_attribute(reflection.foreign_key, nil) end end end diff --git a/activerecord/lib/active_record/associations/join_dependency/join_part.rb b/activerecord/lib/active_record/associations/join_dependency/join_part.rb index 3279e56e7d..2b1d888a9a 100644 --- a/activerecord/lib/active_record/associations/join_dependency/join_part.rb +++ b/activerecord/lib/active_record/associations/join_dependency/join_part.rb @@ -22,7 +22,7 @@ module ActiveRecord end def aliased_table - Arel::Nodes::TableAlias.new aliased_table_name, table + Arel::Nodes::TableAlias.new table, aliased_table_name end def ==(other) diff --git a/activerecord/lib/active_record/attribute_methods/primary_key.rb b/activerecord/lib/active_record/attribute_methods/primary_key.rb index fcdd31ddea..5f06452247 100644 --- a/activerecord/lib/active_record/attribute_methods/primary_key.rb +++ b/activerecord/lib/active_record/attribute_methods/primary_key.rb @@ -17,6 +17,11 @@ module ActiveRecord @primary_key ||= reset_primary_key end + # Returns a quoted version of the primary key name, used to construct SQL statements. + def quoted_primary_key + @quoted_primary_key ||= connection.quote_column_name(primary_key) + end + def reset_primary_key #:nodoc: key = self == base_class ? get_primary_key(base_class.name) : base_class.primary_key @@ -43,7 +48,12 @@ module ActiveRecord end attr_accessor :original_primary_key - attr_writer :primary_key + + # Attribute writer for the primary key column + def primary_key=(value) + @quoted_primary_key = nil + @primary_key = value + end # Sets the name of the primary key column to use to the given value, # or (if the value is nil or false) to the value returned by the given @@ -53,6 +63,7 @@ module ActiveRecord # set_primary_key "sysid" # end def set_primary_key(value = nil, &block) + @quoted_primary_key = nil @primary_key ||= '' self.original_primary_key = @primary_key value &&= value.to_s diff --git a/activerecord/lib/active_record/attribute_methods/write.rb b/activerecord/lib/active_record/attribute_methods/write.rb index 3c4dab304e..7661676f8c 100644 --- a/activerecord/lib/active_record/attribute_methods/write.rb +++ b/activerecord/lib/active_record/attribute_methods/write.rb @@ -32,6 +32,7 @@ module ActiveRecord @attributes[attr_name] = value end end + alias_method :raw_write_attribute, :write_attribute private # Handle *= for method_missing. diff --git a/activerecord/lib/active_record/base.rb b/activerecord/lib/active_record/base.rb index b778b0c0f0..fe81c7dc2f 100644 --- a/activerecord/lib/active_record/base.rb +++ b/activerecord/lib/active_record/base.rb @@ -437,9 +437,10 @@ module ActiveRecord #:nodoc: self._attr_readonly = [] class << self # Class methods - delegate :find, :first, :last, :all, :destroy, :destroy_all, :exists?, :delete, :delete_all, :update, :update_all, :to => :scoped + delegate :find, :first, :first!, :last, :last!, :all, :exists?, :any?, :many?, :to => :scoped + delegate :destroy, :destroy_all, :delete, :delete_all, :update, :update_all, :to => :scoped delegate :find_each, :find_in_batches, :to => :scoped - delegate :select, :group, :order, :except, :limit, :offset, :joins, :where, :preload, :eager_load, :includes, :from, :lock, :readonly, :having, :create_with, :to => :scoped + delegate :select, :group, :order, :except, :reorder, :limit, :offset, :joins, :where, :preload, :eager_load, :includes, :from, :lock, :readonly, :having, :create_with, :to => :scoped delegate :count, :average, :minimum, :maximum, :sum, :calculate, :to => :scoped # Executes a custom SQL query against your database and returns all the results. The results will 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 4297c26413..b4db1eed18 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb @@ -151,6 +151,12 @@ module ActiveRecord @reserved_connections[current_connection_id] ||= checkout end + # Check to see if there is an active connection in this connection + # pool. + def active_connection? + @reserved_connections.key? current_connection_id + end + # Signal that the thread is finished with the current connection. # #release_connection releases the connection-thread association # and returns the connection to the pool. @@ -346,6 +352,12 @@ module ActiveRecord @connection_pools[name] = ConnectionAdapters::ConnectionPool.new(spec) end + # Returns true if there are any active connections among the connection + # pools that the ConnectionHandler is managing. + def active_connections? + connection_pools.values.any? { |pool| pool.active_connection? } + end + # Returns any connections in use by the current thread back to the pool, # and also returns connections to the pool cached by threads that are no # longer alive. @@ -405,18 +417,40 @@ module ActiveRecord end class ConnectionManagement + class Proxy # :nodoc: + attr_reader :body, :testing + + def initialize(body, testing = false) + @body = body + @testing = testing + end + + def each(&block) + body.each(&block) + end + + def close + body.close if body.respond_to?(:close) + + # Don't return connection (and perform implicit rollback) if + # this request is a part of integration test + ActiveRecord::Base.clear_active_connections! unless testing + end + end + def initialize(app) @app = app end def call(env) - @app.call(env) - ensure - # Don't return connection (and perform implicit rollback) if - # this request is a part of integration test - unless env.key?("rack.test") - ActiveRecord::Base.clear_active_connections! - end + testing = env.key?('rack.test') + + status, headers, body = @app.call(env) + + [status, headers, Proxy.new(body, testing)] + rescue + ActiveRecord::Base.clear_active_connections! unless testing + raise end end end diff --git a/activerecord/lib/active_record/connection_adapters/abstract/connection_specification.rb b/activerecord/lib/active_record/connection_adapters/abstract/connection_specification.rb index d88720c8bf..bcd3abc08d 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/connection_specification.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/connection_specification.rb @@ -116,7 +116,11 @@ module ActiveRecord connection_handler.remove_connection(klass) end - delegate :clear_active_connections!, :clear_reloadable_connections!, + def clear_active_connections! + connection_handler.clear_active_connections! + end + + delegate :clear_reloadable_connections!, :clear_all_connections!,:verify_active_connections!, :to => :connection_handler end end diff --git a/activerecord/lib/active_record/connection_adapters/sqlite_adapter.rb b/activerecord/lib/active_record/connection_adapters/sqlite_adapter.rb index ae61d6ce94..32229a8410 100644 --- a/activerecord/lib/active_record/connection_adapters/sqlite_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/sqlite_adapter.rb @@ -222,7 +222,7 @@ module ActiveRecord # SCHEMA STATEMENTS ======================================== - def tables(name = nil) #:nodoc: + def tables(name = 'SCHEMA') #:nodoc: sql = <<-SQL SELECT name FROM sqlite_master @@ -350,7 +350,7 @@ module ActiveRecord end def table_structure(table_name) - structure = exec_query("PRAGMA table_info(#{quote_table_name(table_name)})").to_hash + structure = exec_query("PRAGMA table_info(#{quote_table_name(table_name)})", 'SCHEMA').to_hash raise(ActiveRecord::StatementInvalid, "Could not find table '#{table_name}'") if structure.empty? structure end diff --git a/activerecord/lib/active_record/fixtures.rb b/activerecord/lib/active_record/fixtures.rb index d523c643ba..0939ec2626 100644 --- a/activerecord/lib/active_record/fixtures.rb +++ b/activerecord/lib/active_record/fixtures.rb @@ -173,10 +173,10 @@ class FixturesFileNotFound < StandardError; end # traversed in the database to create the fixture hash and/or instance variables. This is expensive for # large sets of fixtured data. # -# = Dynamic fixtures with ERb +# = Dynamic fixtures with ERB # # Some times you don't care about the content of the fixtures as much as you care about the volume. In these cases, you can -# mix ERb in with your YAML or CSV fixtures to create a bunch of fixtures for load testing, like: +# mix ERB in with your YAML or CSV fixtures to create a bunch of fixtures for load testing, like: # # <% for i in 1..1000 %> # fix_<%= i %>: @@ -186,7 +186,7 @@ class FixturesFileNotFound < StandardError; end # # This will create 1000 very simple YAML fixtures. # -# Using ERb, you can also inject dynamic values into your fixtures with inserts like <tt><%= Date.today.strftime("%Y-%m-%d") %></tt>. +# Using ERB, you can also inject dynamic values into your fixtures with inserts like <tt><%= Date.today.strftime("%Y-%m-%d") %></tt>. # This is however a feature to be used with some caution. The point of fixtures are that they're # stable units of predictable sample data. If you feel that you need to inject dynamic values, then # perhaps you should reexamine whether your application is properly testable. Hence, dynamic values diff --git a/activerecord/lib/active_record/log_subscriber.rb b/activerecord/lib/active_record/log_subscriber.rb index afadbf03ef..d31e321440 100644 --- a/activerecord/lib/active_record/log_subscriber.rb +++ b/activerecord/lib/active_record/log_subscriber.rb @@ -23,6 +23,9 @@ module ActiveRecord return unless logger.debug? payload = event.payload + + return if 'SCHEMA' == payload[:name] + name = '%s (%.1fms)' % [payload[:name], event.duration] sql = payload[:sql].squeeze(' ') binds = nil diff --git a/activerecord/lib/active_record/persistence.rb b/activerecord/lib/active_record/persistence.rb index 3377a5934b..a916c88348 100644 --- a/activerecord/lib/active_record/persistence.rb +++ b/activerecord/lib/active_record/persistence.rb @@ -104,17 +104,33 @@ module ActiveRecord became end + # Updates a single attribute and saves the record. + # This is especially useful for boolean flags on existing records. Also note that + # + # * Validation is skipped. + # * Callbacks are invoked. + # * updated_at/updated_on column is updated if that column is available. + # * Updates all the attributes that are dirty in this object. + # + def update_attribute(name, value) + name = name.to_s + raise ActiveRecordError, "#{name} is marked as readonly" if self.class.readonly_attributes.include?(name) + send("#{name}=", value) + save(:validate => false) + end + # Updates a single attribute of an object, without calling save. # # * Validation is skipped. # * Callbacks are skipped. - # * updated_at/updated_on column is not updated in any case. + # * updated_at/updated_on column is not updated if that column is available. # def update_column(name, value) name = name.to_s raise ActiveRecordError, "#{name} is marked as readonly" if self.class.readonly_attributes.include?(name) - send("#{name}=", value) - self.class.update_all({ name => value }, self.class.primary_key => id) + raise ActiveRecordError, "can not update on a new record object" unless persisted? + raw_write_attribute(name, value) + self.class.update_all({ name => value }, self.class.primary_key => id) == 1 end # Updates the attributes of the model from the passed-in hash and saves the @@ -154,7 +170,7 @@ module ActiveRecord # Saving is not subjected to validation checks. Returns +true+ if the # record could be saved. def increment!(attribute, by = 1) - increment(attribute, by).update_column(attribute, self[attribute]) + increment(attribute, by).update_attribute(attribute, self[attribute]) end # Initializes +attribute+ to zero if +nil+ and subtracts the value passed as +by+ (default is 1). @@ -171,7 +187,7 @@ module ActiveRecord # Saving is not subjected to validation checks. Returns +true+ if the # record could be saved. def decrement!(attribute, by = 1) - decrement(attribute, by).update_column(attribute, self[attribute]) + decrement(attribute, by).update_attribute(attribute, self[attribute]) end # Assigns to +attribute+ the boolean opposite of <tt>attribute?</tt>. So @@ -188,7 +204,7 @@ module ActiveRecord # Saving is not subjected to validation checks. Returns +true+ if the # record could be saved. def toggle!(attribute) - toggle(attribute).update_column(attribute, self[attribute]) + toggle(attribute).update_attribute(attribute, self[attribute]) end # Reloads the attributes of this object from the database. diff --git a/activerecord/lib/active_record/relation.rb b/activerecord/lib/active_record/relation.rb index 8e545f9cad..896daf516e 100644 --- a/activerecord/lib/active_record/relation.rb +++ b/activerecord/lib/active_record/relation.rb @@ -12,7 +12,7 @@ module ActiveRecord # These are explicitly delegated to improve performance (avoids method_missing) delegate :to_xml, :to_yaml, :length, :collect, :map, :each, :all?, :include?, :to => :to_a - delegate :table_name, :primary_key, :to => :klass + delegate :table_name, :quoted_table_name, :primary_key, :quoted_primary_key, :to => :klass attr_reader :table, :klass, :loaded attr_accessor :extensions diff --git a/activerecord/lib/active_record/relation/batches.rb b/activerecord/lib/active_record/relation/batches.rb index bf5a60f458..d52b84179f 100644 --- a/activerecord/lib/active_record/relation/batches.rb +++ b/activerecord/lib/active_record/relation/batches.rb @@ -83,7 +83,7 @@ module ActiveRecord private def batch_order - "#{table_name}.#{primary_key} ASC" + "#{quoted_table_name}.#{quoted_primary_key} ASC" end end end diff --git a/activerecord/lib/active_record/relation/calculations.rb b/activerecord/lib/active_record/relation/calculations.rb index c1842b1a96..869eebfa34 100644 --- a/activerecord/lib/active_record/relation/calculations.rb +++ b/activerecord/lib/active_record/relation/calculations.rb @@ -196,24 +196,22 @@ module ActiveRecord end def execute_simple_calculation(operation, column_name, distinct) #:nodoc: - column = aggregate_column(column_name) - # Postgresql doesn't like ORDER BY when there are no GROUP BY relation = except(:order) - select_value = operation_over_aggregate_column(column, operation, distinct) - relation.select_values = [select_value] + if operation == "count" && (relation.limit_value || relation.offset_value) + # Shortcut when limit is zero. + return 0 if relation.limit_value == 0 - query_builder = relation.arel + query_builder = build_count_subquery(relation, column_name, distinct) + else + column = aggregate_column(column_name) - if operation == "count" - limit = relation.limit_value - offset = relation.offset_value + select_value = operation_over_aggregate_column(column, operation, distinct) - unless limit && offset - query_builder.limit = nil - query_builder.offset = nil - end + relation.select_values = [select_value] + + query_builder = relation.arel end type_cast_calculated_value(@klass.connection.select_value(query_builder.to_sql), column_for(column_name), operation) @@ -312,5 +310,18 @@ module ActiveRecord select if select !~ /(,|\*)/ end end + + def build_count_subquery(relation, column_name, distinct) + column_alias = Arel.sql('count_column') + subquery_alias = Arel.sql('subquery_for_count') + + aliased_column = aggregate_column(column_name == :all ? 1 : column_name).as(column_alias) + relation.select_values = [aliased_column] + subquery = relation.arel.as(subquery_alias) + + sm = Arel::SelectManager.new relation.engine + select_value = operation_over_aggregate_column(column_alias, 'count', distinct) + sm.project(select_value).from(subquery) + end end end diff --git a/activerecord/lib/active_record/relation/finder_methods.rb b/activerecord/lib/active_record/relation/finder_methods.rb index 563843f3cc..8fa315bdf3 100644 --- a/activerecord/lib/active_record/relation/finder_methods.rb +++ b/activerecord/lib/active_record/relation/finder_methods.rb @@ -183,7 +183,9 @@ module ActiveRecord def exists?(id = nil) id = id.id if ActiveRecord::Base === id - relation = select("1").limit(1) + join_dependency = construct_join_dependency_for_association_find + relation = construct_relation_for_association_find(join_dependency) + relation = relation.except(:select).select("1").limit(1) case id when Array, Hash @@ -192,14 +194,13 @@ module ActiveRecord relation = relation.where(table[primary_key].eq(id)) if id end - relation.first ? true : false + connection.select_value(relation.to_sql) ? true : false end protected def find_with_associations - including = (@eager_load_values + @includes_values).uniq - join_dependency = ActiveRecord::Associations::JoinDependency.new(@klass, including, []) + join_dependency = construct_join_dependency_for_association_find relation = construct_relation_for_association_find(join_dependency) rows = connection.select_all(relation.to_sql, 'SQL', relation.bind_values) join_dependency.instantiate(rows) @@ -207,6 +208,11 @@ module ActiveRecord [] end + def construct_join_dependency_for_association_find + including = (@eager_load_values + @includes_values).uniq + ActiveRecord::Associations::JoinDependency.new(@klass, including, []) + end + def construct_relation_for_association_calculations including = (@eager_load_values + @includes_values).uniq join_dependency = ActiveRecord::Associations::JoinDependency.new(@klass, including, arel.froms.first) diff --git a/activerecord/lib/active_record/relation/query_methods.rb b/activerecord/lib/active_record/relation/query_methods.rb index 9470e7c6c5..02b7056989 100644 --- a/activerecord/lib/active_record/relation/query_methods.rb +++ b/activerecord/lib/active_record/relation/query_methods.rb @@ -62,6 +62,10 @@ module ActiveRecord relation end + def reorder(*args) + except(:order).order(args) + end + def joins(*args) return self if args.compact.blank? 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