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author | Pratik Naik <pratiknaik@gmail.com> | 2010-01-03 00:08:59 +0530 |
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committer | Pratik Naik <pratiknaik@gmail.com> | 2010-01-03 00:08:59 +0530 |
commit | 65200d2933bd337b8347dd32502a12c2fddf24f0 (patch) | |
tree | a8400d37114b8450c5e2a7ec3641e727abe42caf /activerecord/lib/active_record | |
parent | 32b48bf419eb22514be9a75981b9b0cf51a973a0 (diff) | |
download | rails-65200d2933bd337b8347dd32502a12c2fddf24f0.tar.gz rails-65200d2933bd337b8347dd32502a12c2fddf24f0.tar.bz2 rails-65200d2933bd337b8347dd32502a12c2fddf24f0.zip |
Implement Relation#new
Diffstat (limited to 'activerecord/lib/active_record')
-rw-r--r-- | activerecord/lib/active_record/relation.rb | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/relation.rb b/activerecord/lib/active_record/relation.rb index 6eb1d907e6..0319781e03 100644 --- a/activerecord/lib/active_record/relation.rb +++ b/activerecord/lib/active_record/relation.rb @@ -15,6 +15,10 @@ module ActiveRecord @loaded, @readonly = false end + def new(*args, &block) + @klass.send(:with_scope, :create => create_scope) { @klass.new(*args, &block) } + end + def merge(r) raise ArgumentError, "Cannot merge a #{r.klass.name} relation with #{@klass.name} relation" if r.klass != @klass @@ -138,7 +142,7 @@ module ActiveRecord end def reset - @first = @last = nil + @first = @last = @create_scope = nil @records = [] self end @@ -181,6 +185,13 @@ module ActiveRecord end end + def create_scope + @create_scope ||= wheres.inject({}) do |hash, where| + hash[where.operand1.name] = where.operand2.value if where.is_a?(Arel::Predicates::Equality) + hash + end + end + def where_clause(join_string = " AND ") @relation.send(:where_clauses).join(join_string) end |