diff options
Diffstat (limited to 'activerecord/lib/arel/update_manager.rb')
-rw-r--r-- | activerecord/lib/arel/update_manager.rb | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/activerecord/lib/arel/update_manager.rb b/activerecord/lib/arel/update_manager.rb new file mode 100644 index 0000000000..fe444343ba --- /dev/null +++ b/activerecord/lib/arel/update_manager.rb @@ -0,0 +1,59 @@ +# frozen_string_literal: true + +module Arel # :nodoc: all + class UpdateManager < Arel::TreeManager + def initialize + super + @ast = Nodes::UpdateStatement.new + @ctx = @ast + end + + def take(limit) + @ast.limit = Nodes::Limit.new(Nodes.build_quoted(limit)) if limit + self + end + + def key=(key) + @ast.key = Nodes.build_quoted(key) + end + + def key + @ast.key + end + + def order(*expr) + @ast.orders = expr + self + end + + ### + # UPDATE +table+ + def table(table) + @ast.relation = table + self + end + + def wheres=(exprs) + @ast.wheres = exprs + end + + def where(expr) + @ast.wheres << expr + self + end + + def set(values) + if String === values + @ast.values = [values] + else + @ast.values = values.map { |column, value| + Nodes::Assignment.new( + Nodes::UnqualifiedColumn.new(column), + value + ) + } + end + self + end + end +end |