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table responds to where, column info is cached

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This commit is contained in:
Aaron Patterson 2010-08-13 11:30:24 -07:00
parent 38b10d5ea1
commit bfe0348889
1 changed files with 8 additions and 3 deletions
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11
lib/arel/table.rb
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@ -6,16 +6,21 @@ module Arel
attr_reader :name, :engine
def initialize name, engine = Table.engine
@name = name
@engine = engine
@name = name
@engine = engine
@columns = nil
end
def tm
TreeManager.new(@engine).from(self)
end
def where condition
tm.where condition
end
def columns
@engine.connection.columns(@name, "#{@name} Columns").map do |column|
@columns ||= @engine.connection.columns(@name, "#{@name} Columns").map do |column|
Attributes.for(column).new self, column.name, column
end
end