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Versions: 23
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Contents
class Card
class Query
class Join
attr_accessor :conditions, :side,
:from, :to,
:from_table, :to_table,
:from_alias, :to_alias,
:from_field, :to_field,
:superjoin, :subjoins
# documentation??? -pk
def initialize opts={}
from_and_to opts
opts.each do |key, value|
send "#{key}=", value if value.present?
end
@from_field ||= :id
@to_field ||= :id
@conditions = Array @conditions
@subjoins = Array @subjoins
if @from.is_a? Join
@superjoin = @from
@superjoin.subjoins << self
end
self
end
def from_and_to opts
[:from, :to].each do |side|
object = opts[side]
case object
when nil then next
when Array
{ table: object.shift, alias: object.shift, field: object.shift }
when Card::Query
{ table: "cards", alias: object.table_alias }
when Card::Query::Reference
{ table: "card_references", alias: object.table_alias }
when Card::Query::Join
raise "to: cannot be Join" if side == :to
{ table: object.to_table, alias: object.to_alias }
else
raise "invalid #{side} option: #{object}"
end.map do |key, value|
opts[:"#{side}_#{key}"] ||= value
end
end
end
def side
if !@side.nil?
@side
else
in_or = from && from.is_a?(Card::Query) && from.mods[:conj] == "or"
@side = in_or ? "LEFT" : nil
end
end
def left?
side == "LEFT"
end
def in_left?
if !@in_left.nil?
@in_left
else
@in_left = left? || (!@superjoin.nil? && @superjoin.in_left?)
end
end
end
end
end
Version data entries
23 entries across 23 versions & 1 rubygems