lib/agnostic_backend/queryable/cloudsearch/visitor.rb
module AgnosticBackend
module Queryable
module Cloudsearch
class Visitor < AgnosticBackend::Queryable::Visitor
private
def visit_criteria_equal(subject)
"(term field=#{visit(subject.attribute)} #{visit(subject.value)})"
end
def visit_criteria_not_equal(subject)
"(not term field=#{visit(subject.attribute)} #{visit(subject.value)})"
end
def visit_criteria_greater(subject)
"(range field=#{visit(subject.attribute)} {#{visit(subject.value)},})"
end
def visit_criteria_less(subject)
"(range field=#{visit(subject.attribute)} {,#{visit(subject.value)}})"
end
def visit_criteria_greater_equal(subject)
"(range field=#{visit(subject.attribute)} [#{visit(subject.value)},})"
end
def visit_criteria_less_equal(subject)
"(range field=#{visit(subject.attribute)} {,#{visit(subject.value)}])"
end
def visit_criteria_greater_and_less(subject)
"(range field=#{visit(subject.attribute)} {#{visit(subject.left_value)},#{visit(subject.right_value)}})"
end
def visit_criteria_greater_equal_and_less(subject)
"(range field=#{visit(subject.attribute)} [#{visit(subject.left_value)},#{visit(subject.right_value)}})"
end
def visit_criteria_greater_and_less_equal(subject)
"(range field=#{visit(subject.attribute)} {#{visit(subject.left_value)},#{visit(subject.right_value)}])"
end
def visit_criteria_greater_equal_and_less_equal(subject)
"(range field=#{visit(subject.attribute)} [#{visit(subject.left_value)},#{visit(subject.right_value)}])"
end
def visit_criteria_contains(subject)
"(phrase field=#{visit(subject.attribute)} #{visit(subject.value)})"
end
def visit_criteria_starts(subject)
"(prefix field=#{visit(subject.attribute)} #{visit(subject.value)})"
end
def visit_criteria_free_text(subject)
if subject.attribute.any?
"(and #{visit(subject.value)})"
else
"(and #{visit(subject.attribute)}: #{visit(subject.value)})"
end
end
def visit_operations_not(subject)
"(not #{visit(subject.operand)})"
end
def visit_operations_and(subject)
"(and #{subject.operands.map{|o| visit(o)}.join(' ')})"
end
def visit_operations_or(subject)
"(or #{subject.operands.map{|o| visit(o)}.join(' ')})"
end
def visit_operations_ascending(subject)
"#{visit(subject.attribute)} asc"
end
def visit_operations_descending(subject)
"#{visit(subject.attribute)} desc"
end
def visit_query(subject)
"#{subject.children.map{|c| visit(c)}.join(' ')}"
end
def visit_expressions_where(subject)
visit(subject.criterion) #search?q=
end
def visit_expressions_filter(subject)
visit(subject.criterion)
end
def visit_expressions_select(subject)
"#{subject.projections.map{|c| visit(c)}.join(',')}" #return=
end
def visit_expressions_order(subject)
"#{subject.qualifiers.map{|c| visit(c)}.join(',')}" #sort=
end
def visit_expressions_limit(subject)
visit(subject.limit) #size=
end
def visit_expressions_offset(subject)
visit(subject.offset) #offset=
end
def visit_expressions_scroll_cursor(subject)
visit(subject.scroll_cursor) #cursor=
end
def visit_attribute(subject)
subject.name.split('.').join('__')
end
def visit_value(subject)
case subject.type
when :integer
subject.value
when :date,:date_array
"'#{subject.value.utc.strftime("%Y-%m-%dT%H:%M:%SZ")}'"
when :double
subject.value
when :boolean
"'#{subject.value}'"
when :string,:string_array,:text,:text_array
"'#{subject.value}'"
else
subject.value
end
end
end
end
end
end