diff options
| author | Carl Lerche <carllerche@mac.com> | 2010-03-12 15:25:21 -0800 |
|---|---|---|
| committer | Carl Lerche <carllerche@mac.com> | 2010-03-12 15:25:21 -0800 |
| commit | 0e6888232a19c8c59416490d3da6079e590fab77 (patch) | |
| tree | 43f5157375fdcfb449f245f43dcddabd29208243 /lib/arel/engines | |
| parent | e13420c86afb5c31e90cff800f121bd49255b939 (diff) | |
| download | rails-0e6888232a19c8c59416490d3da6079e590fab77.tar.gz rails-0e6888232a19c8c59416490d3da6079e590fab77.tar.bz2 rails-0e6888232a19c8c59416490d3da6079e590fab77.zip | |
Add support for a NOT predicate
Diffstat (limited to 'lib/arel/engines')
| -rw-r--r-- | lib/arel/engines/memory/predicates.rb | 6 | ||||
| -rw-r--r-- | lib/arel/engines/sql/predicates.rb | 4 |
2 files changed, 10 insertions, 0 deletions
diff --git a/lib/arel/engines/memory/predicates.rb b/lib/arel/engines/memory/predicates.rb index dd2559c70f..f87bf68357 100644 --- a/lib/arel/engines/memory/predicates.rb +++ b/lib/arel/engines/memory/predicates.rb @@ -10,6 +10,12 @@ module Arel def operator; :== end end + class Not < Binary + def eval(row) + operand1.eval(row) != operand2.eval(row) + end + end + class GreaterThanOrEqualTo < Binary def operator; :>= end end diff --git a/lib/arel/engines/sql/predicates.rb b/lib/arel/engines/sql/predicates.rb index e563a9ba3e..3756231a46 100644 --- a/lib/arel/engines/sql/predicates.rb +++ b/lib/arel/engines/sql/predicates.rb @@ -26,6 +26,10 @@ module Arel end end + class Not < Binary + def predicate_sql; '!=' end + end + class GreaterThanOrEqualTo < Binary def predicate_sql; '>=' end end |