diff options
Diffstat (limited to 'activerecord/lib/active_record')
| -rwxr-xr-x | activerecord/lib/active_record/associations.rb | 88 | ||||
| -rw-r--r-- | activerecord/lib/active_record/associations/association_proxy.rb | 4 | ||||
| -rwxr-xr-x | activerecord/lib/active_record/base.rb | 6 | ||||
| -rw-r--r-- | activerecord/lib/active_record/reflection.rb | 6 |
4 files changed, 52 insertions, 52 deletions
diff --git a/activerecord/lib/active_record/associations.rb b/activerecord/lib/active_record/associations.rb index 1b25605727..273c210d63 100755 --- a/activerecord/lib/active_record/associations.rb +++ b/activerecord/lib/active_record/associations.rb @@ -683,34 +683,42 @@ module ActiveRecord schema_abbreviations = generate_schema_abbreviations(reflections) primary_key_table = generate_primary_key_table(reflections, schema_abbreviations) - rows = select_all_rows(options, schema_abbreviations, reflections) - records = extract_and_instantiate_records(schema_abbreviations, rows) - - assign_associations_to_records(rows, records, reflections, schema_abbreviations, primary_key_table) + rows = select_all_rows(options, schema_abbreviations, reflections) + records = { } + primary_key = primary_key_table[table_name] + + for row in rows + id = row[primary_key] + records[id] ||= instantiate(extract_record(schema_abbreviations, table_name, row)) - return records - end - - def assign_associations_to_records(rows, records, reflections, schema_abbreviations, primary_key_table) - records.each do |record| reflections.each do |reflection| + next unless row[primary_key_table[reflection.table_name]] + case reflection.macro when :has_many, :has_and_belongs_to_many - record.send(reflection.name).target = - extract_association_for_record(record, schema_abbreviations, primary_key_table, rows, reflection) + records[id].send(reflection.name) + records[id].instance_variable_get("@#{reflection.name}").target.push( + reflection.klass.send(:instantiate, extract_record(schema_abbreviations, reflection.table_name, row)) + ) when :has_one, :belongs_to - record.send( - "set_#{reflection.name}_target", - extract_association_for_record(record, schema_abbreviations, primary_key_table, rows, reflection).first + records[id].send( + "#{reflection.name}=", + reflection.klass.send(:instantiate, extract_record(schema_abbreviations, reflection.table_name, row)) ) end end end + + return records.values end - + + def reflect_on_included_associations(associations) + [ associations ].flatten.collect { |association| reflect_on_association(association) } + end + def generate_schema_abbreviations(reflections) - schema = [ [ table_name, columns.collect { |c| c.name } ] ] - schema += reflections.collect { |r| [ r.klass.table_name, r.klass.columns.collect { |c| c.name } ] } + schema = [ [ table_name, column_names ] ] + schema += reflections.collect { |r| [ r.table_name, r.klass.column_names ] } schema_abbreviations = {} schema.each_with_index do |table_and_columns, i| @@ -736,9 +744,14 @@ module ActiveRecord end - def construct_finder_sql_with_included_associations(options, schema_abbreviations, reflections) - habtm_associations = reflections.find_all { |r| r.macro == :has_and_belongs_to_many } + def select_all_rows(options, schema_abbreviations, reflections) + connection.select_all( + construct_finder_sql_with_included_associations(options, schema_abbreviations, reflections), + "#{name} Load Including Associations" + ) + end + def construct_finder_sql_with_included_associations(options, schema_abbreviations, reflections) sql = "SELECT #{column_aliases(schema_abbreviations)} FROM #{table_name} " sql << reflections.collect { |reflection| association_join(reflection) }.to_s sql << "#{options[:joins]} " if options[:joins] @@ -775,39 +788,14 @@ module ActiveRecord end - def extract_and_instantiate_records(schema_abbreviations, rows) - rows.collect { |row| instantiate(extract_record(schema_abbreviations, table_name, row)) }.uniq - end - - def extract_association_for_record(record, schema_abbreviations, primary_key_table, rows, reflection) - association = rows.collect do |row| - if row[primary_key_table[table_name]].to_s == record.id.to_s && !row[primary_key_table[reflection.klass.table_name]].nil? - reflection.klass.send(:instantiate, extract_record(schema_abbreviations, reflection.klass.table_name, row)) - end - end - - return association.uniq.compact - end - def extract_record(schema_abbreviations, table_name, row) - row.inject({}) do |record, pair| - prefix, column_name = schema_abbreviations[pair.first] - record[column_name] = pair.last if prefix == table_name - record + record = {} + row.each do |column, value| + prefix, column_name = schema_abbreviations[column] + record[column_name] = value if prefix == table_name end - end - - - def reflect_on_included_associations(associations) - [ associations ].flatten.collect { |association| reflect_on_association(association) } - end - - def select_all_rows(options, schema_abbreviations, reflections) - connection.select_all( - construct_finder_sql_with_included_associations(options, schema_abbreviations, reflections), - "#{name} Load Including Associations" - ) - end + return record + end end end end diff --git a/activerecord/lib/active_record/associations/association_proxy.rb b/activerecord/lib/active_record/associations/association_proxy.rb index caa896f826..8548848e4f 100644 --- a/activerecord/lib/active_record/associations/association_proxy.rb +++ b/activerecord/lib/active_record/associations/association_proxy.rb @@ -32,6 +32,10 @@ module ActiveRecord @loaded end + def target + @target + end + def target=(t) @target = t @loaded = true diff --git a/activerecord/lib/active_record/base.rb b/activerecord/lib/active_record/base.rb index e14eff594a..a173a16eee 100755 --- a/activerecord/lib/active_record/base.rb +++ b/activerecord/lib/active_record/base.rb @@ -618,6 +618,10 @@ module ActiveRecord #:nodoc: def columns_hash @columns_hash ||= columns.inject({}) { |hash, column| hash[column.name] = column; hash } end + + def column_names + @column_names ||= columns_hash.keys + end # Returns an array of columns objects where the primary id, all columns ending in "_id" or "_count", # and columns used for single table inheritance has been removed. @@ -640,7 +644,7 @@ module ActiveRecord #:nodoc: # Resets all the cached information about columns, which will cause they to be reloaded on the next request. def reset_column_information - @columns = @columns_hash = @content_columns = @dynamic_methods_hash = nil + @column_names = @columns = @columns_hash = @content_columns = @dynamic_methods_hash = nil end def reset_column_information_and_inheritable_attributes_for_all_subclasses#:nodoc: diff --git a/activerecord/lib/active_record/reflection.rb b/activerecord/lib/active_record/reflection.rb index 55a446ff57..6b718704d2 100644 --- a/activerecord/lib/active_record/reflection.rb +++ b/activerecord/lib/active_record/reflection.rb @@ -114,7 +114,11 @@ module ActiveRecord # Holds all the meta-data about an association as it was specified in the Active Record class. class AssociationReflection < MacroReflection #:nodoc: def klass - active_record.send(:compute_type, (name_to_class_name(name.id2name))) + @klass ||= active_record.send(:compute_type, (name_to_class_name(name.id2name))) + end + + def table_name + @table_name ||= klass.table_name end private |