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module Arel
class Value
attr_reader :value, :relation
def initialize value, relation
@value = value
@relation = relation
end
def == other
super ||
Value === other &&
value == other.value &&
relation == other.relation
end
def eval(row)
value
end
def bind(relation)
Value.new(value, relation)
end
def to_ordering
self
end
def inclusion_predicate_sql
value.inclusion_predicate_sql
end
def exclusion_predicate_sql
value.exclusion_predicate_sql
end
def equality_predicate_sql
value.equality_predicate_sql
end
def inequality_predicate_sql
value.inequality_predicate_sql
end
def to_sql(formatter = Sql::WhereCondition.new(relation))
formatter.value value
end
def format(object)
object.to_sql(Sql::Value.new(relation))
end
end
end
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