blob: f303dcd8d1b474285e11e20c2937baab15fdcc7d (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
|
module Arel
class Row
attr_reader :tuple, :relation
def initialize relation, tuple
@relation = relation
@tuple = tuple
end
def [](attribute)
attribute.type_cast(tuple[relation.position_of(attribute)])
end
def slice(*attributes)
Row.new(relation, attributes.inject([]) do |cheese, attribute|
# FIXME TESTME method chaining
cheese << tuple[relation.relation.position_of(attribute)]
cheese
end)
end
def bind(relation)
Row.new(relation, tuple)
end
def combine(other, relation)
Row.new(relation, tuple + other.tuple)
end
end
end
|