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module Arel
module Predications
def not_eq other
Nodes::NotEqual.new self, quoted_node(other)
end
def not_eq_any others
grouping_any :not_eq, others
end
def not_eq_all others
grouping_all :not_eq, others
end
def eq other
Nodes::Equality.new self, quoted_node(other)
end
def eq_any others
grouping_any :eq, others
end
def eq_all others
grouping_all :eq, quoted_array(others)
end
def between other
if equals_quoted?(other.begin, -Float::INFINITY)
if equals_quoted?(other.end, Float::INFINITY)
not_in([])
elsif other.exclude_end?
lt(other.end)
else
lteq(other.end)
end
elsif equals_quoted?(other.end, Float::INFINITY)
gteq(other.begin)
elsif other.exclude_end?
gteq(other.begin).and(lt(other.end))
else
left = quoted_node(other.begin)
right = quoted_node(other.end)
Nodes::Between.new(self, left.and(right))
end
end
def in other
case other
when Arel::SelectManager
Arel::Nodes::In.new(self, other.ast)
when Range
if $VERBOSE
warn <<-eowarn
Passing a range to `#in` is deprecated. Call `#between`, instead.
eowarn
end
between(other)
when Enumerable
Nodes::In.new self, quoted_array(other)
else
Nodes::In.new self, quoted_node(other)
end
end
def in_any others
grouping_any :in, others
end
def in_all others
grouping_all :in, others
end
def not_between other
if equals_quoted?(other.begin, -Float::INFINITY)
if equals_quoted?(other.end, Float::INFINITY)
self.in([])
elsif other.exclude_end?
gteq(other.end)
else
gt(other.end)
end
elsif equals_quoted?(other.end, Float::INFINITY)
lt(other.begin)
else
left = lt(other.begin)
right = if other.exclude_end?
gteq(other.end)
else
gt(other.end)
end
left.or(right)
end
end
def not_in other
case other
when Arel::SelectManager
Arel::Nodes::NotIn.new(self, other.ast)
when Range
if $VERBOSE
warn <<-eowarn
Passing a range to `#not_in` is deprecated. Call `#not_between`, instead.
eowarn
end
not_between(other)
when Enumerable
Nodes::NotIn.new self, quoted_array(other)
else
Nodes::NotIn.new self, quoted_node(other)
end
end
def not_in_any others
grouping_any :not_in, others
end
def not_in_all others
grouping_all :not_in, others
end
def matches other, escape = nil
Nodes::Matches.new self, quoted_node(other), escape
end
def matches_any others, escape = nil
grouping_any :matches, others, escape
end
def matches_all others, escape = nil
grouping_all :matches, others, escape
end
def does_not_match other, escape = nil
Nodes::DoesNotMatch.new self, quoted_node(other), escape
end
def does_not_match_any others, escape = nil
grouping_any :does_not_match, others, escape
end
def does_not_match_all others, escape = nil
grouping_all :does_not_match, others, escape
end
def gteq right
Nodes::GreaterThanOrEqual.new self, quoted_node(right)
end
def gteq_any others
grouping_any :gteq, others
end
def gteq_all others
grouping_all :gteq, others
end
def gt right
Nodes::GreaterThan.new self, quoted_node(right)
end
def gt_any others
grouping_any :gt, others
end
def gt_all others
grouping_all :gt, others
end
def lt right
Nodes::LessThan.new self, quoted_node(right)
end
def lt_any others
grouping_any :lt, others
end
def lt_all others
grouping_all :lt, others
end
def lteq right
Nodes::LessThanOrEqual.new self, quoted_node(right)
end
def lteq_any others
grouping_any :lteq, others
end
def lteq_all others
grouping_all :lteq, others
end
private
def grouping_any method_id, others, *extras
nodes = others.map {|expr| send(method_id, expr, *extras)}
Nodes::Grouping.new nodes.inject { |memo,node|
Nodes::Or.new(memo, node)
}
end
def grouping_all method_id, others, *extras
nodes = others.map {|expr| send(method_id, expr, *extras)}
Nodes::Grouping.new Nodes::And.new(nodes)
end
def quoted_node(other)
Nodes.build_quoted(other, self)
end
def quoted_array(others)
others.map { |v| quoted_node(v) }
end
def equals_quoted?(maybe_quoted, value)
if maybe_quoted.is_a?(Nodes::Quoted)
maybe_quoted.val == value
else
maybe_quoted == value
end
end
end
end
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