diff options
Diffstat (limited to 'activerecord')
| -rw-r--r-- | activerecord/lib/active_record.rb | 3 | ||||
| -rwxr-xr-x | activerecord/lib/active_record/associations.rb | 28 | ||||
| -rwxr-xr-x | activerecord/lib/active_record/base.rb | 156 | ||||
| -rw-r--r-- | activerecord/lib/active_record/calculations.rb | 214 | ||||
| -rw-r--r-- | activerecord/lib/active_record/connection_adapters/mysql_adapter.rb | 2 | ||||
| -rw-r--r-- | activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb | 20 | ||||
| -rw-r--r-- | activerecord/lib/active_record/locking/optimistic.rb | 23 | ||||
| -rw-r--r-- | activerecord/lib/active_record/migration.rb | 63 | ||||
| -rw-r--r-- | activerecord/test/cases/associations/inner_join_association_test.rb | 2 | ||||
| -rw-r--r-- | activerecord/test/cases/calculations_test.rb | 2 | ||||
| -rw-r--r-- | activerecord/test/cases/inheritance_test.rb | 4 | ||||
| -rw-r--r-- | activerecord/test/cases/method_scoping_test.rb | 2 |
12 files changed, 296 insertions, 223 deletions
diff --git a/activerecord/lib/active_record.rb b/activerecord/lib/active_record.rb index 2d98239052..05afd20f23 100644 --- a/activerecord/lib/active_record.rb +++ b/activerecord/lib/active_record.rb @@ -25,6 +25,9 @@ activesupport_path = "#{File.dirname(__FILE__)}/../../activesupport/lib" $:.unshift(activesupport_path) if File.directory?(activesupport_path) require 'active_support' +$:.unshift(File.dirname(__FILE__) + '/../../arel/lib') +require 'arel' + module ActiveRecord # TODO: Review explicit loads to see if they will automatically be handled by the initilizer. def self.load_all! diff --git a/activerecord/lib/active_record/associations.rb b/activerecord/lib/active_record/associations.rb index 76726b7845..2c998faf37 100755 --- a/activerecord/lib/active_record/associations.rb +++ b/activerecord/lib/active_record/associations.rb @@ -516,14 +516,14 @@ module ActiveRecord # # Since only one table is loaded at a time, conditions or orders cannot reference tables other than the main one. If this is the case # Active Record falls back to the previously used LEFT OUTER JOIN based strategy. For example - # + # # Post.find(:all, :include => [ :author, :comments ], :conditions => ['comments.approved = ?', true]) # # will result in a single SQL query with joins along the lines of: <tt>LEFT OUTER JOIN comments ON comments.post_id = posts.id</tt> and # <tt>LEFT OUTER JOIN authors ON authors.id = posts.author_id</tt>. Note that using conditions like this can have unintended consequences. # In the above example posts with no approved comments are not returned at all, because the conditions apply to the SQL statement as a whole # and not just to the association. You must disambiguate column references for this fallback to happen, for example - # <tt>:order => "author.name DESC"</tt> will work but <tt>:order => "name DESC"</tt> will not. + # <tt>:order => "author.name DESC"</tt> will work but <tt>:order => "name DESC"</tt> will not. # # If you do want eagerload only some members of an association it is usually more natural to <tt>:include</tt> an association # which has conditions defined on it: @@ -557,10 +557,10 @@ module ActiveRecord # # Address.find(:all, :include => :addressable) # - # will execute one query to load the addresses and load the addressables with one query per addressable type. + # will execute one query to load the addresses and load the addressables with one query per addressable type. # For example if all the addressables are either of class Person or Company then a total of 3 queries will be executed. The list of # addressable types to load is determined on the back of the addresses loaded. This is not supported if Active Record has to fallback - # to the previous implementation of eager loading and will raise ActiveRecord::EagerLoadPolymorphicError. The reason is that the parent + # to the previous implementation of eager loading and will raise ActiveRecord::EagerLoadPolymorphicError. The reason is that the parent # model's type is a column value so its corresponding table name cannot be put in the +FROM+/+JOIN+ clauses of that query. # # == Table Aliasing @@ -875,7 +875,7 @@ module ActiveRecord # but not include the joined columns. Do not forget to include the primary and foreign keys, otherwise it will raise an error. # [:through] # Specifies a Join Model through which to perform the query. Options for <tt>:class_name</tt> and <tt>:foreign_key</tt> - # are ignored, as the association uses the source reflection. You can only use a <tt>:through</tt> query through a + # are ignored, as the association uses the source reflection. You can only use a <tt>:through</tt> query through a # <tt>has_one</tt> or <tt>belongs_to</tt> association on the join model. # [:source] # Specifies the source association name used by <tt>has_one :through</tt> queries. Only use it if the name cannot be @@ -1129,8 +1129,8 @@ module ActiveRecord # the association will use "project_id" as the default <tt>:association_foreign_key</tt>. # [:conditions] # Specify the conditions that the associated object must meet in order to be included as a +WHERE+ - # SQL fragment, such as <tt>authorized = 1</tt>. Record creations from the association are scoped if a hash is used. - # <tt>has_many :posts, :conditions => {:published => true}</tt> will create published posts with <tt>@blog.posts.create</tt> + # SQL fragment, such as <tt>authorized = 1</tt>. Record creations from the association are scoped if a hash is used. + # <tt>has_many :posts, :conditions => {:published => true}</tt> will create published posts with <tt>@blog.posts.create</tt> # or <tt>@blog.posts.build</tt>. # [:order] # Specify the order in which the associated objects are returned as an <tt>ORDER BY</tt> SQL fragment, @@ -1341,12 +1341,12 @@ module ActiveRecord "#{reflection.class_name}.send(:attr_readonly,\"#{cache_column}\".intern) if defined?(#{reflection.class_name}) && #{reflection.class_name}.respond_to?(:attr_readonly)" ) end - + def add_touch_callbacks(reflection, touch_attribute) method_name = "belongs_to_touch_after_save_or_destroy_for_#{reflection.name}".to_sym define_method(method_name) do association = send(reflection.name) - + if touch_attribute == true association.touch unless association.nil? else @@ -1558,7 +1558,7 @@ module ActiveRecord options[:extend] = create_extension_modules(association_id, extension, options[:extend]) reflection = create_reflection(:has_and_belongs_to_many, association_id, options, self) - + if reflection.association_foreign_key == reflection.primary_key_name raise HasAndBelongsToManyAssociationForeignKeyNeeded.new(reflection) end @@ -1613,6 +1613,14 @@ module ActiveRecord end end + def construct_limited_ids_condition(where, options, join_dependency) + unless (id_list = select_limited_ids_list(options, join_dependency)).empty? + "#{where.blank? ? 'WHERE ' : ' AND '} #{connection.quote_table_name table_name}.#{primary_key} IN (#{id_list}) " + else + throw :invalid_query + end + end + def select_limited_ids_list(options, join_dependency) pk = columns_hash[primary_key] diff --git a/activerecord/lib/active_record/base.rb b/activerecord/lib/active_record/base.rb index ec49d40a12..56f3bd9faa 100755 --- a/activerecord/lib/active_record/base.rb +++ b/activerecord/lib/active_record/base.rb @@ -400,7 +400,7 @@ module ActiveRecord #:nodoc: # So it's possible to assign a logger to the class through <tt>Base.logger=</tt> which will then be used by all # instances in the current object space. class Base - ## + ## # :singleton-method: # Accepts a logger conforming to the interface of Log4r or the default Ruby 1.8+ Logger class, which is then passed # on to any new database connections made and which can be retrieved on both a class and instance level by calling +logger+. @@ -434,11 +434,11 @@ module ActiveRecord #:nodoc: # as a Hash. # # For example, the following database.yml... - # + # # development: # adapter: sqlite3 # database: db/development.sqlite3 - # + # # production: # adapter: sqlite3 # database: db/production.sqlite3 @@ -909,9 +909,7 @@ module ActiveRecord #:nodoc: # Both calls delete the affected posts all at once with a single DELETE statement. If you need to destroy dependent # associations or call your <tt>before_*</tt> or +after_destroy+ callbacks, use the +destroy_all+ method instead. def delete_all(conditions = nil) - sql = "DELETE FROM #{quoted_table_name} " - add_conditions!(sql, conditions, scope(:find)) - connection.delete(sql, "#{name} Delete all") + arel_table.where(construct_conditions(conditions, scope(:find))).delete end # Returns the result of an SQL statement that should only include a COUNT(*) in the SELECT part. @@ -1084,7 +1082,7 @@ module ActiveRecord #:nodoc: # Returns an array of all the attributes that have been specified as readonly. def readonly_attributes - read_inheritable_attribute(:attr_readonly) + read_inheritable_attribute(:attr_readonly) || [] end # If you have an attribute that needs to be saved to the database as an object, and retrieved as the same object, @@ -1356,7 +1354,7 @@ module ActiveRecord #:nodoc: def self_and_descendants_from_active_record#nodoc: klass = self classes = [klass] - while klass != klass.base_class + while klass != klass.base_class classes << klass = klass.superclass end classes @@ -1390,7 +1388,7 @@ module ActiveRecord #:nodoc: def human_name(options = {}) defaults = self_and_descendants_from_active_record.map do |klass| :"#{klass.name.underscore}" - end + end defaults << self.name.humanize I18n.translate(defaults.shift, {:scope => [:activerecord, :models], :count => 1, :default => defaults}.merge(options)) end @@ -1692,22 +1690,92 @@ module ActiveRecord #:nodoc: end end - def construct_finder_sql(options) + def arel_table(table = table_name) + @arel_table = Arel(table) + end + + def construct_finder_arel(options) scope = scope(:find) - sql = "SELECT #{options[:select] || (scope && scope[:select]) || default_select(options[:joins] || (scope && scope[:joins]))} " - sql << "FROM #{options[:from] || (scope && scope[:from]) || quoted_table_name} " - add_joins!(sql, options[:joins], scope) - add_conditions!(sql, options[:conditions], scope) + # TODO add lock to Arel + arel_table(table_name). + join(construct_join(options[:joins], scope)). + where(construct_conditions(options[:conditions], scope)). + project(options[:select] || (scope && scope[:select]) || default_select(options[:joins] || (scope && scope[:joins]))). + group(construct_group(options[:group], options[:having], scope)). + order(construct_order(options[:order], scope)). + take(construct_limit(options, scope)). + skip(construct_offset(options, scope) + ) + end - add_group!(sql, options[:group], options[:having], scope) - add_order!(sql, options[:order], scope) - add_limit!(sql, options, scope) - add_lock!(sql, options, scope) + def construct_finder_sql(options) + construct_finder_arel(options).to_sql + end + + def construct_join(joins, scope = :auto) + merged_joins = scope && scope[:joins] && joins ? merge_joins(scope[:joins], joins) : (joins || scope && scope[:joins]) + case merged_joins + when Symbol, Hash, Array + if array_of_strings?(merged_joins) + merged_joins.join(' ') + " " + else + join_dependency = ActiveRecord::Associations::ClassMethods::InnerJoinDependency.new(self, merged_joins, nil) + " #{join_dependency.join_associations.collect { |assoc| assoc.association_join }.join} " + end + when String + " #{merged_joins} " + else + "" + end + end + def construct_group(group, having, scope = :auto) + sql = '' + if group + sql << group.to_s + sql << " HAVING #{sanitize_sql_for_conditions(having)}" if having + else + scope = scope(:find) if :auto == scope + if scope && (scoped_group = scope[:group]) + sql << scoped_group.to_s + sql << " HAVING #{sanitize_sql_for_conditions(scope[:having])}" if scope[:having] + end + end sql end + def construct_order(order, scope = :auto) + sql = '' + scoped_order = scope[:order] if scope + if order + sql << order.to_s + if scoped_order && scoped_order != order + sql << ", #{scoped_order}" + end + else + sql << scoped_order.to_s if scoped_order + end + sql + end + + def construct_limit(options, scope = :auto) + options[:limit] ||= scope[:limit] if scope + options[:limit] + end + + def construct_offset(options, scope = :auto) + options[:offset] ||= scope[:offset] if scope + options[:offset] + end + + def construct_conditions(conditions, scope = :auto) + conditions = [conditions] + conditions << scope[:conditions] if scope + conditions << type_condition if finder_needs_type_condition? + merge_conditions(*conditions) + end + # Merges includes so that the result is a valid +include+ def merge_includes(first, second) (safe_to_array(first) + safe_to_array(second)).uniq @@ -1963,7 +2031,7 @@ module ActiveRecord #:nodoc: attributes = construct_attributes_from_arguments( # attributes = construct_attributes_from_arguments( [:#{attribute_names.join(',:')}], args # [:user_name, :password], args ) # ) - # + # scoped(:conditions => attributes) # scoped(:conditions => attributes) end # end }, __FILE__, __LINE__ @@ -2483,7 +2551,7 @@ module ActiveRecord #:nodoc: # name # end # end - # + # # user = User.find_by_name('Phusion') # user_path(user) # => "/users/Phusion" def to_param @@ -2538,12 +2606,12 @@ module ActiveRecord #:nodoc: # If +perform_validation+ is true validations run. If any of them fail # the action is cancelled and +save+ returns +false+. If the flag is # false validations are bypassed altogether. See - # ActiveRecord::Validations for more information. + # ActiveRecord::Validations for more information. # # There's a series of callbacks associated with +save+. If any of the # <tt>before_*</tt> callbacks return +false+ the action is cancelled and # +save+ returns +false+. See ActiveRecord::Callbacks for further - # details. + # details. def save create_or_update end @@ -2555,12 +2623,12 @@ module ActiveRecord #:nodoc: # # With <tt>save!</tt> validations always run. If any of them fail # ActiveRecord::RecordInvalid gets raised. See ActiveRecord::Validations - # for more information. + # for more information. # # There's a series of callbacks associated with <tt>save!</tt>. If any of # the <tt>before_*</tt> callbacks return +false+ the action is cancelled # and <tt>save!</tt> raises ActiveRecord::RecordNotSaved. See - # ActiveRecord::Callbacks for further details. + # ActiveRecord::Callbacks for further details. def save! create_or_update || raise(RecordNotSaved) end @@ -2584,11 +2652,7 @@ module ActiveRecord #:nodoc: # be made (since they can't be persisted). def destroy unless new_record? - connection.delete( - "DELETE FROM #{self.class.quoted_table_name} " + - "WHERE #{connection.quote_column_name(self.class.primary_key)} = #{quoted_id}", - "#{self.class.name} Destroy" - ) + arel_table.where(arel_table[self.class.primary_key].eq(id)).delete end freeze @@ -2731,12 +2795,12 @@ module ActiveRecord #:nodoc: # class User < ActiveRecord::Base # attr_protected :is_admin # end - # + # # user = User.new # user.attributes = { :username => 'Phusion', :is_admin => true } # user.username # => "Phusion" # user.is_admin? # => false - # + # # user.send(:attributes=, { :username => 'Phusion', :is_admin => true }, false) # user.is_admin? # => true def attributes=(new_attributes, guard_protected_attributes = true) @@ -2881,14 +2945,9 @@ module ActiveRecord #:nodoc: # Updates the associated record with values matching those of the instance attributes. # Returns the number of affected rows. def update(attribute_names = @attributes.keys) - quoted_attributes = attributes_with_quotes(false, false, attribute_names) - return 0 if quoted_attributes.empty? - connection.update( - "UPDATE #{self.class.quoted_table_name} " + - "SET #{quoted_comma_pair_list(connection, quoted_attributes)} " + - "WHERE #{connection.quote_column_name(self.class.primary_key)} = #{quote_value(id)}", - "#{self.class.name} Update" - ) + attributes_with_values = arel_attributes_values(false, false, attribute_names) + return 0 if attributes_with_values.empty? + arel_table.where(arel_table[self.class.primary_key].eq(id)).update(attributes_with_values) end # Creates a record with values matching those of the instance attributes @@ -2998,6 +3057,25 @@ module ActiveRecord #:nodoc: include_readonly_attributes ? quoted : remove_readonly_attributes(quoted) end + def arel_table + @arel_table ||= Arel(self.class.table_name) + end + + def arel_attributes_values(include_primary_key = true, include_readonly_attributes = true, attribute_names = @attributes.keys) + attrs = {} + connection = self.class.connection + attribute_names.each do |name| + if (column = column_for_attribute(name)) && (include_primary_key || !column.primary) + value = read_attribute(name) + + if include_readonly_attributes || (!include_readonly_attributes && !self.class.readonly_attributes.include?(name)) + attrs[arel_table[name]] = value + end + end + end + attrs + end + # Quote strings appropriately for SQL statements. def quote_value(value, column = nil) self.class.connection.quote(value, column) diff --git a/activerecord/lib/active_record/calculations.rb b/activerecord/lib/active_record/calculations.rb index 7afa7c49bd..98f9450662 100644 --- a/activerecord/lib/active_record/calculations.rb +++ b/activerecord/lib/active_record/calculations.rb @@ -53,7 +53,7 @@ module ActiveRecord # # Person.average('age') # => 35.8 def average(column_name, options = {}) - calculate(:avg, column_name, options) + calculate(:average, column_name, options) end # Calculates the minimum value on a given column. The value is returned @@ -62,7 +62,7 @@ module ActiveRecord # # Person.minimum('age') # => 7 def minimum(column_name, options = {}) - calculate(:min, column_name, options) + calculate(:minimum, column_name, options) end # Calculates the maximum value on a given column. The value is returned @@ -71,7 +71,7 @@ module ActiveRecord # # Person.maximum('age') # => 93 def maximum(column_name, options = {}) - calculate(:max, column_name, options) + calculate(:maximum, column_name, options) end # Calculates the sum of values on a given column. The value is returned @@ -123,20 +123,111 @@ module ActiveRecord # Person.sum("2 * age") def calculate(operation, column_name, options = {}) validate_calculation_options(operation, options) - column_name = options[:select] if options[:select] - column_name = '*' if column_name == :all - column = column_for column_name + operation = operation.to_s.downcase + + scope = scope(:find) + + merged_includes = merge_includes(scope ? scope[:include] : [], options[:include]) + joins = construct_join(options[:joins], scope) + + if merged_includes.any? + join_dependency = ActiveRecord::Associations::ClassMethods::JoinDependency.new(self, merged_includes, joins) + joins << join_dependency.join_associations.collect{|join| join.association_join }.join + end + + if operation == "count" + if merged_includes.any? + distinct = true + column_name = options[:select] || primary_key + end + + distinct = nil if column_name.to_s =~ /\s*DISTINCT\s+/i + distinct ||= options[:distinct] + else + distinct = nil + end + catch :invalid_query do + conditions = construct_conditions(options[:conditions], scope) + conditions << construct_limited_ids_condition(conditions, options, join_dependency) if join_dependency && !using_limitable_reflections?(join_dependency.reflections) && ((scope && scope[:limit]) || options[:limit]) + if options[:group] - return execute_grouped_calculation(operation, column_name, column, options) + return execute_grouped_calculation(operation, column_name, options.merge(:conditions => conditions, :joins => joins, :distinct => distinct)) else - return execute_simple_calculation(operation, column_name, column, options) + return execute_simple_calculation(operation, column_name, options.merge(:conditions => conditions, :joins => joins, :distinct => distinct)) end end 0 end - protected + def execute_simple_calculation(operation, column_name, options) #:nodoc: + table = options[:from] || table_name + + value = if operation == 'count' + if column_name == :all && options[:select].blank? + column_name = "*" + elsif !options[:select].blank? + column_name = options[:select] + end + construct_calculation_arel(options.merge(:select => Arel::Attribute.new(Arel(table), column_name).count(options[:distinct]))) + else + construct_calculation_arel(options.merge(:select => Arel::Attribute.new(Arel(table), column_name).send(operation))) + end + + type_cast_calculated_value(connection.select_value(value.to_sql), column_for(column_name), operation) + end + + def execute_grouped_calculation(operation, column_name, options) #:nodoc: + group_attr = options[:group].to_s + association = reflect_on_association(group_attr.to_sym) + associated = association && association.macro == :belongs_to # only count belongs_to associations + group_field = associated ? association.primary_key_name : group_attr + group_alias = column_alias_for(group_field) + group_column = column_for group_field + + options[:group] = connection.adapter_name == 'FrontBase' ? group_alias : group_field + + aggregate_alias = column_alias_for(operation, column_name) + + options[:select] = (operation == 'count' && column_name == :all) ? + "COUNT(*) AS count_all" : + Arel::Attribute.new(arel_table, column_name).send(operation).as(aggregate_alias).to_sql + + options[:select] << ", #{group_field} AS #{group_alias}" + + calculated_data = connection.select_all(construct_calculation_arel(options).to_sql) + + if association + key_ids = calculated_data.collect { |row| row[group_alias] } + key_records = association.klass.base_class.find(key_ids) + key_records = key_records.inject({}) { |hsh, r| hsh.merge(r.id => r) } + end + + calculated_data.inject(ActiveSupport::OrderedHash.new) do |all, row| + key = type_cast_calculated_value(row[group_alias], group_column) + key = key_records[key] if associated + value = row[aggregate_alias] + all[key] = type_cast_calculated_value(value, column_for(column_name), operation) + all + end + end + + protected + + def construct_calculation_arel(options) + scope = scope(:find) + + arel_table(options[:from] || table_name). + join(options[:joins]). + where(options[:conditions]). + project(options[:select]). + group(construct_group(options[:group], options[:having], scope)). + order(options[:order].to_s). + take(construct_limit(options, scope)). + skip(construct_offset(options, scope) + ) + end + def construct_count_options_from_args(*args) options = {} column_name = :all @@ -166,108 +257,6 @@ module ActiveRecord [column_name || :all, options] end - def construct_calculation_sql(operation, column_name, options) #:nodoc: - operation = operation.to_s.downcase - options = options.symbolize_keys - - scope = scope(:find) - merged_includes = merge_includes(scope ? scope[:include] : [], options[:include]) - aggregate_alias = column_alias_for(operation, column_name) - column_name = "#{connection.quote_table_name(table_name)}.#{column_name}" if column_names.include?(column_name.to_s) - - if operation == 'count' - if merged_includes.any? - options[:distinct] = true - column_name = options[:select] || [connection.quote_table_name(table_name), primary_key] * '.' - end - - if options[:distinct] - use_workaround = !connection.supports_count_distinct? - end - end - - if options[:distinct] && column_name.to_s !~ /\s*DISTINCT\s+/i - distinct = 'DISTINCT ' - end - sql = "SELECT #{operation}(#{distinct}#{column_name}) AS #{aggregate_alias}" - - # A (slower) workaround if we're using a backend, like sqlite, that doesn't support COUNT DISTINCT. - sql = "SELECT COUNT(*) AS #{aggregate_alias}" if use_workaround - - sql << ", #{options[:group_field]} AS #{options[:group_alias]}" if options[:group] - if options[:from] - sql << " FROM #{options[:from]} " - else - sql << " FROM (SELECT #{distinct}#{column_name}" if use_workaround - sql << " FROM #{connection.quote_table_name(table_name)} " - end - - joins = "" - add_joins!(joins, options[:joins], scope) - - if merged_includes.any? - join_dependency = ActiveRecord::Associations::ClassMethods::JoinDependency.new(self, merged_includes, joins) - sql << join_dependency.join_associations.collect{|join| join.association_join }.join - end - - sql << joins unless joins.blank? - - add_conditions!(sql, options[:conditions], scope) - add_limited_ids_condition!(sql, options, join_dependency) if join_dependency && !using_limitable_reflections?(join_dependency.reflections) && ((scope && scope[:limit]) || options[:limit]) - - if options[:group] - group_key = connection.adapter_name == 'FrontBase' ? :group_alias : :group_field - sql << " GROUP BY #{options[group_key]} " - end - - if options[:group] && options[:having] - having = sanitize_sql_for_conditions(options[:having]) - - # FrontBase requires identifiers in the HAVING clause and chokes on function calls - if connection.adapter_name == 'FrontBase' - having.downcase! - having.gsub!(/#{operation}\s*\(\s*#{column_name}\s*\)/, aggregate_alias) - end - - sql << " HAVING #{having} " - end - - sql << " ORDER BY #{options[:order]} " if options[:order] - add_limit!(sql, options, scope) - sql << ") #{aggregate_alias}_subquery" if use_workaround - sql - end - - def execute_simple_calculation(operation, column_name, column, options) #:nodoc: - value = connection.select_value(construct_calculation_sql(operation, column_name, options)) - type_cast_calculated_value(value, column, operation) - end - - def execute_grouped_calculation(operation, column_name, column, options) #:nodoc: - group_attr = options[:group].to_s - association = reflect_on_association(group_attr.to_sym) - associated = association && association.macro == :belongs_to # only count belongs_to associations - group_field = associated ? association.primary_key_name : group_attr - group_alias = column_alias_for(group_field) - group_column = column_for group_field - sql = construct_calculation_sql(operation, column_name, options.merge(:group_field => group_field, :group_alias => group_alias)) - calculated_data = connection.select_all(sql) - aggregate_alias = column_alias_for(operation, column_name) - - if association - key_ids = calculated_data.collect { |row| row[group_alias] } - key_records = association.klass.base_class.find(key_ids) - key_records = key_records.inject({}) { |hsh, r| hsh.merge(r.id => r) } - end - - calculated_data.inject(ActiveSupport::OrderedHash.new) do |all, row| - key = type_cast_calculated_value(row[group_alias], group_column) - key = key_records[key] if associated - value = row[aggregate_alias] - all[key] = type_cast_calculated_value(value, column, operation) - all - end - end private def validate_calculation_options(operation, options = {}) @@ -299,11 +288,10 @@ module ActiveRecord end def type_cast_calculated_value(value, column, operation = nil) - operation = operation.to_s.downcase case operation when 'count' then value.to_i when 'sum' then type_cast_using_column(value || '0', column) - when 'avg' then value && (value.is_a?(Fixnum) ? value.to_f : value).to_d + when 'average' then value && (value.is_a?(Fixnum) ? value.to_f : value).to_d else type_cast_using_column(value, column) end end diff --git a/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb b/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb index d5536e4d67..0aae97a6a9 100644 --- a/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb @@ -212,7 +212,7 @@ module ActiveRecord def supports_migrations? #:nodoc: true end - + def supports_savepoints? #:nodoc: true end diff --git a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb index 002696d2c4..4b2ddac634 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb @@ -68,7 +68,7 @@ module ActiveRecord # depending on the server specifics super end - + # Maps PostgreSQL-specific data types to logical Rails types. def simplified_type(field_type) case field_type @@ -103,7 +103,7 @@ module ActiveRecord :string # Arrays when /^\D+\[\]$/ - :string + :string # Object identifier types when /^oid$/ :integer @@ -112,7 +112,7 @@ module ActiveRecord super end end - + # Extracts the value from a PostgreSQL column default definition. def self.extract_value_from_default(default) case default @@ -273,7 +273,7 @@ module ActiveRecord def supports_ddl_transactions? true end - + def supports_savepoints? true end @@ -552,7 +552,7 @@ module ActiveRecord def rollback_db_transaction execute "ROLLBACK" end - + if defined?(PGconn::PQTRANS_IDLE) # The ruby-pg driver supports inspecting the transaction status, # while the ruby-postgres driver does not. @@ -897,18 +897,18 @@ module ActiveRecord sql = "DISTINCT ON (#{columns}) #{columns}, " sql << order_columns * ', ' end - + # Returns an ORDER BY clause for the passed order option. - # + # # PostgreSQL does not allow arbitrary ordering when using DISTINCT ON, so we work around this # by wrapping the +sql+ string as a sub-select and ordering in that query. def add_order_by_for_association_limiting!(sql, options) #:nodoc: return sql if options[:order].blank? - + order = options[:order].split(',').collect { |s| s.strip }.reject(&:blank?) order.map! { |s| 'DESC' if s =~ /\bdesc$/i } order = order.zip((0...order.size).to_a).map { |s,i| "id_list.alias_#{i} #{s}" }.join(', ') - + sql.replace "SELECT * FROM (#{sql}) AS id_list ORDER BY #{order}" end @@ -1021,7 +1021,7 @@ module ActiveRecord if res.ftype(cell_index) == MONEY_COLUMN_TYPE_OID # Because money output is formatted according to the locale, there are two # cases to consider (note the decimal separators): - # (1) $12,345,678.12 + # (1) $12,345,678.12 # (2) $12.345.678,12 case column = row[cell_index] when /^-?\D+[\d,]+\.\d{2}$/ # (1) diff --git a/activerecord/lib/active_record/locking/optimistic.rb b/activerecord/lib/active_record/locking/optimistic.rb index cf4f8864c6..e51748b7d2 100644 --- a/activerecord/lib/active_record/locking/optimistic.rb +++ b/activerecord/lib/active_record/locking/optimistic.rb @@ -89,12 +89,12 @@ module ActiveRecord attribute_names.uniq! begin - affected_rows = connection.update(<<-end_sql, "#{self.class.name} Update with optimistic locking") - UPDATE #{self.class.quoted_table_name} - SET #{quoted_comma_pair_list(connection, attributes_with_quotes(false, false, attribute_names))} - WHERE #{self.class.primary_key} = #{quote_value(id)} - AND #{self.class.quoted_locking_column} = #{quote_value(previous_value)} - end_sql + affected_rows = arel_table.where( + arel_table[self.class.primary_key].eq(quoted_id).and( + arel_table[self.class.locking_column].eq(quote_value(previous_value)) + ) + ).update(arel_attributes_values(false, false, attribute_names)) + unless affected_rows == 1 raise ActiveRecord::StaleObjectError, "Attempted to update a stale object" @@ -116,12 +116,11 @@ module ActiveRecord lock_col = self.class.locking_column previous_value = send(lock_col).to_i - affected_rows = connection.delete( - "DELETE FROM #{self.class.quoted_table_name} " + - "WHERE #{connection.quote_column_name(self.class.primary_key)} = #{quoted_id} " + - "AND #{self.class.quoted_locking_column} = #{quote_value(previous_value)}", - "#{self.class.name} Destroy" - ) + affected_rows = arel_table.where( + arel_table[self.class.primary_key].eq(quoted_id).and( + arel_table[self.class.locking_column].eq(quote_value(previous_value)) + ) + ).delete unless affected_rows == 1 raise ActiveRecord::StaleObjectError, "Attempted to delete a stale object" diff --git a/activerecord/lib/active_record/migration.rb b/activerecord/lib/active_record/migration.rb index a7be3539d5..557ab07abf 100644 --- a/activerecord/lib/active_record/migration.rb +++ b/activerecord/lib/active_record/migration.rb @@ -103,7 +103,7 @@ module ActiveRecord # # The Rails package has several tools to help create and apply migrations. # - # To generate a new migration, you can use + # To generate a new migration, you can use # script/generate migration MyNewMigration # # where MyNewMigration is the name of your migration. The generator will @@ -121,16 +121,16 @@ module ActiveRecord # def self.up # add_column :tablenames, :fieldname, :string # end - # + # # def self.down # remove_column :tablenames, :fieldname # end # end - # + # # To run migrations against the currently configured database, use # <tt>rake db:migrate</tt>. This will update the database by running all of the # pending migrations, creating the <tt>schema_migrations</tt> table - # (see "About the schema_migrations table" section below) if missing. It will also + # (see "About the schema_migrations table" section below) if missing. It will also # invoke the db:schema:dump task, which will update your db/schema.rb file # to match the structure of your database. # @@ -240,7 +240,7 @@ module ActiveRecord # lower than the current schema version: when migrating up, those # never-applied "interleaved" migrations will be automatically applied, and # when migrating down, never-applied "interleaved" migrations will be skipped. - # + # # == Timestamped Migrations # # By default, Rails generates migrations that look like: @@ -253,7 +253,7 @@ module ActiveRecord # off by setting: # # config.active_record.timestamped_migrations = false - # + # # In environment.rb. # class Migration @@ -338,10 +338,6 @@ module ActiveRecord self.verbose = save end - def connection - ActiveRecord::Base.connection - end - def method_missing(method, *arguments, &block) arg_list = arguments.map(&:inspect) * ', ' @@ -349,7 +345,7 @@ module ActiveRecord unless arguments.empty? || method == :execute arguments[0] = Migrator.proper_table_name(arguments.first) end - connection.send(method, *arguments, &block) + Base.connection.send(method, *arguments, &block) end end end @@ -389,9 +385,9 @@ module ActiveRecord def rollback(migrations_path, steps=1) migrator = self.new(:down, migrations_path) start_index = migrator.migrations.index(migrator.current_migration) - + return unless start_index - + finish = migrator.migrations[start_index + steps] down(migrations_path, finish ? finish.version : 0) end @@ -403,7 +399,7 @@ module ActiveRecord def down(migrations_path, target_version = nil) self.new(:down, migrations_path, target_version).migrate end - + def run(direction, migrations_path, target_version) self.new(direction, migrations_path, target_version).run end @@ -413,7 +409,8 @@ module ActiveRecord end def get_all_versions - Base.connection.select_values("SELECT version FROM #{schema_migrations_table_name}").map(&:to_i).sort + table = Arel(schema_migrations_table_name) + Base.connection.select_values(table.project(table['version']).to_sql).map(&:to_i).sort end def current_version @@ -434,17 +431,17 @@ module ActiveRecord def initialize(direction, migrations_path, target_version = nil) raise StandardError.new("This database does not yet support migrations") unless Base.connection.supports_migrations? Base.connection.initialize_schema_migrations_table - @direction, @migrations_path, @target_version = direction, migrations_path, target_version + @direction, @migrations_path, @target_version = direction, migrations_path, target_version end def current_version migrated.last || 0 end - + def current_migration migrations.detect { |m| m.version == current_version } end - + def run target = migrations.detect { |m| m.version == @target_version } raise UnknownMigrationVersionError.new(@target_version) if target.nil? @@ -461,14 +458,14 @@ module ActiveRecord if target.nil? && !@target_version.nil? && @target_version > 0 raise UnknownMigrationVersionError.new(@target_version) end - + start = up? ? 0 : (migrations.index(current) || 0) finish = migrations.index(target) || migrations.size - 1 runnable = migrations[start..finish] - + # skip the last migration if we're headed down, but not ALL the way down runnable.pop if down? && !target.nil? - + runnable.each do |migration| Base.logger.info "Migrating to #{migration.name} (#{migration.version})" @@ -496,28 +493,28 @@ module ActiveRecord def migrations @migrations ||= begin files = Dir["#{@migrations_path}/[0-9]*_*.rb"] - + migrations = files.inject([]) do |klasses, file| version, name = file.scan(/([0-9]+)_([_a-z0-9]*).rb/).first - + raise IllegalMigrationNameError.new(file) unless version version = version.to_i - + if klasses.detect { |m| m.version == version } - raise DuplicateMigrationVersionError.new(version) + raise DuplicateMigrationVersionError.new(version) end if klasses.detect { |m| m.name == name.camelize } - raise DuplicateMigrationNameError.new(name.camelize) + raise DuplicateMigrationNameError.new(name.camelize) end - + migration = MigrationProxy.new migration.name = name.camelize migration.version = version migration.filename = file klasses << migration end - + migrations = migrations.sort_by(&:version) down? ? migrations.reverse : migrations end @@ -534,15 +531,15 @@ module ActiveRecord private def record_version_state_after_migrating(version) - sm_table = self.class.schema_migrations_table_name + table = Arel(self.class.schema_migrations_table_name) @migrated_versions ||= [] if down? - @migrated_versions.delete(version.to_i) - Base.connection.update("DELETE FROM #{sm_table} WHERE version = '#{version}'") + @migrated_versions.delete(version) + table.where(table["version"].eq(version.to_s)).delete else - @migrated_versions.push(version.to_i).sort! - Base.connection.insert("INSERT INTO #{sm_table} (version) VALUES ('#{version}')") + @migrated_versions.push(version).sort! + table.insert table["version"] => version.to_s end end diff --git a/activerecord/test/cases/associations/inner_join_association_test.rb b/activerecord/test/cases/associations/inner_join_association_test.rb index 7141531740..5f08c40005 100644 --- a/activerecord/test/cases/associations/inner_join_association_test.rb +++ b/activerecord/test/cases/associations/inner_join_association_test.rb @@ -26,7 +26,7 @@ class InnerJoinAssociationTest < ActiveRecord::TestCase def test_construct_finder_sql_applies_association_conditions sql = Author.send(:construct_finder_sql, :joins => :categories_like_general, :conditions => "TERMINATING_MARKER") - assert_match /INNER JOIN .?categories.? ON.*AND.*.?General.?.*TERMINATING_MARKER/, sql + assert_match /INNER JOIN .?categories.? ON.*AND.*.?General.?(.|\n)*TERMINATING_MARKER/, sql end def test_construct_finder_sql_applies_aliases_tables_on_association_conditions diff --git a/activerecord/test/cases/calculations_test.rb b/activerecord/test/cases/calculations_test.rb index fd455e0864..c29d79f7a0 100644 --- a/activerecord/test/cases/calculations_test.rb +++ b/activerecord/test/cases/calculations_test.rb @@ -25,7 +25,7 @@ class CalculationsTest < ActiveRecord::TestCase def test_should_return_nil_as_average assert_nil NumericData.average(:bank_balance) end - + def test_type_cast_calculated_value_should_convert_db_averages_of_fixnum_class_to_decimal assert_equal 0, NumericData.send(:type_cast_calculated_value, 0, nil, 'avg') assert_equal 53.0, NumericData.send(:type_cast_calculated_value, 53, nil, 'avg') diff --git a/activerecord/test/cases/inheritance_test.rb b/activerecord/test/cases/inheritance_test.rb index eae5a60829..1943af2b9c 100644 --- a/activerecord/test/cases/inheritance_test.rb +++ b/activerecord/test/cases/inheritance_test.rb @@ -30,7 +30,7 @@ class InheritanceTest < ActiveRecord::TestCase ensure ActiveRecord::Base.store_full_sti_class = old end - + def test_should_store_full_class_name_with_store_full_sti_class_option_enabled old = ActiveRecord::Base.store_full_sti_class ActiveRecord::Base.store_full_sti_class = true @@ -39,7 +39,7 @@ class InheritanceTest < ActiveRecord::TestCase ensure ActiveRecord::Base.store_full_sti_class = old end - + def test_different_namespace_subclass_should_load_correctly_with_store_full_sti_class_option old = ActiveRecord::Base.store_full_sti_class ActiveRecord::Base.store_full_sti_class = true diff --git a/activerecord/test/cases/method_scoping_test.rb b/activerecord/test/cases/method_scoping_test.rb index d8246f49b8..bea5c5fb76 100644 --- a/activerecord/test/cases/method_scoping_test.rb +++ b/activerecord/test/cases/method_scoping_test.rb @@ -379,7 +379,7 @@ class NestedScopingTest < ActiveRecord::TestCase poor_jamis = developers(:poor_jamis) Developer.with_scope(:find => { :conditions => "salary < 100000" }) do Developer.with_scope(:find => { :offset => 1, :order => 'id asc' }) do - assert_sql /ORDER BY id asc / do + assert_sql /ORDER BY id asc/ do assert_equal(poor_jamis, Developer.find(:first, :order => 'id asc')) end end |