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author | Aaron Patterson <aaron.patterson@gmail.com> | 2011-07-01 15:19:53 -0700 |
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committer | Aaron Patterson <aaron.patterson@gmail.com> | 2011-07-01 15:20:11 -0700 |
commit | 36d289ad242c4c8da74eed35baeb21cdffcbe907 (patch) | |
tree | 9e2ccceb8fce0a2272cbfda6bc1e68a5bb3cbb31 /activerecord | |
parent | 13990d50fa3f3c320586c480d553ac266d9b22f4 (diff) | |
download | rails-36d289ad242c4c8da74eed35baeb21cdffcbe907.tar.gz rails-36d289ad242c4c8da74eed35baeb21cdffcbe907.tar.bz2 rails-36d289ad242c4c8da74eed35baeb21cdffcbe907.zip |
a few minor performance improvements: fewer strings, fewer range objects, fewer method calls
Diffstat (limited to 'activerecord')
-rw-r--r-- | activerecord/lib/active_record/associations/alias_tracker.rb | 32 | ||||
-rw-r--r-- | activerecord/lib/active_record/associations/join_helper.rb | 3 |
2 files changed, 13 insertions, 22 deletions
diff --git a/activerecord/lib/active_record/associations/alias_tracker.rb b/activerecord/lib/active_record/associations/alias_tracker.rb index c14d42dec9..92ed844a2e 100644 --- a/activerecord/lib/active_record/associations/alias_tracker.rb +++ b/activerecord/lib/active_record/associations/alias_tracker.rb @@ -9,7 +9,7 @@ module ActiveRecord # table_joins is an array of arel joins which might conflict with the aliases we assign here def initialize(table_joins = []) - @aliases = Hash.new + @aliases = Hash.new { |h,k| h[k] = initial_count_for(k) } @table_joins = table_joins end @@ -26,8 +26,6 @@ module ActiveRecord def aliased_name_for(table_name, aliased_name = nil) aliased_name ||= table_name - initialize_count_for(table_name) if aliases[table_name].nil? - if aliases[table_name].zero? # If it's zero, we can have our table_name aliases[table_name] = 1 @@ -36,8 +34,6 @@ module ActiveRecord # Otherwise, we need to use an alias aliased_name = connection.table_alias_for(aliased_name) - initialize_count_for(aliased_name) if aliases[aliased_name].nil? - # Update the count aliases[aliased_name] += 1 @@ -51,26 +47,22 @@ module ActiveRecord private - def initialize_count_for(name) - aliases[name] = 0 + def initial_count_for(name) + return 0 if Arel::Table === table_joins - unless Arel::Table === table_joins - # quoted_name should be downcased as some database adapters (Oracle) return quoted name in uppercase - quoted_name = connection.quote_table_name(name).downcase - - aliases[name] += table_joins.map { |join| - # Table names + table aliases - join.left.downcase.scan( - /join(?:\s+\w+)?\s+(\S+\s+)?#{quoted_name}\son/ - ).size - }.sum - end + # quoted_name should be downcased as some database adapters (Oracle) return quoted name in uppercase + quoted_name = connection.quote_table_name(name).downcase - aliases[name] + table_joins.map { |join| + # Table names + table aliases + join.left.downcase.scan( + /join(?:\s+\w+)?\s+(\S+\s+)?#{quoted_name}\son/ + ).size + }.sum end def truncate(name) - name[0..connection.table_alias_length-3] + name.slice(0, connection.table_alias_length - 2) end def connection diff --git a/activerecord/lib/active_record/associations/join_helper.rb b/activerecord/lib/active_record/associations/join_helper.rb index d094a8def3..f83138195c 100644 --- a/activerecord/lib/active_record/associations/join_helper.rb +++ b/activerecord/lib/active_record/associations/join_helper.rb @@ -32,8 +32,7 @@ module ActiveRecord end def table_alias_for(reflection, join = false) - name = reflection.plural_name.dup - name << "_#{alias_suffix}" + name = "#{reflection.plural_name}_#{alias_suffix}" name << "_join" if join name end |