diff options
Diffstat (limited to 'lib/arel/engines')
| -rw-r--r-- | lib/arel/engines/sql/christener.rb | 3 | ||||
| -rw-r--r-- | lib/arel/engines/sql/relations/table.rb | 18 |
2 files changed, 17 insertions, 4 deletions
diff --git a/lib/arel/engines/sql/christener.rb b/lib/arel/engines/sql/christener.rb index c1c9325208..a2a2da799a 100644 --- a/lib/arel/engines/sql/christener.rb +++ b/lib/arel/engines/sql/christener.rb @@ -4,7 +4,8 @@ module Arel def name_for(relation) @used_names ||= Hash.new(0) (@relation_names ||= Hash.new do |hash, relation| - @used_names[name = relation.name] += 1 + name = relation.table_alias ? relation.table_alias : relation.name + @used_names[name] += 1 hash[relation] = name + (@used_names[name] > 1 ? "_#{@used_names[name]}" : '') end)[relation.table] end diff --git a/lib/arel/engines/sql/relations/table.rb b/lib/arel/engines/sql/relations/table.rb index dd22f44226..6ad294dc6c 100644 --- a/lib/arel/engines/sql/relations/table.rb +++ b/lib/arel/engines/sql/relations/table.rb @@ -3,10 +3,22 @@ module Arel include Recursion::BaseCase cattr_accessor :engine - attr_reader :name, :engine + attr_reader :name, :engine, :table_alias, :options - def initialize(name, engine = Table.engine) - @name, @engine = name.to_s, engine + def initialize(name, options = {}) + @name = name.to_s + + if options.is_a?(Hash) + @options = options + @engine = options[:engine] || Table.engine + @table_alias = options[:as].to_s if options[:as].present? + else + @engine = options # Table.new('foo', engine) + end + end + + def as(table_alias) + Table.new(name, options.merge(:as => table_alias)) end def attributes |