/usr/lib/ruby/vendor_ruby/active_record/relation/predicate_builder.rb is in ruby-activerecord-3.2 3.2.16-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 | module ActiveRecord
class PredicateBuilder # :nodoc:
def self.build_from_hash(engine, attributes, default_table, allow_table_name = true)
predicates = attributes.map do |column, value|
table = default_table
if allow_table_name && value.is_a?(Hash)
table = Arel::Table.new(column, engine)
if value.empty?
'1 = 2'
else
build_from_hash(engine, value, table, false)
end
else
column = column.to_s
if allow_table_name && column.include?('.')
table_name, column = column.split('.', 2)
table = Arel::Table.new(table_name, engine)
end
attribute = table[column]
case value
when ActiveRecord::Relation
value = value.select(value.klass.arel_table[value.klass.primary_key]) if value.select_values.empty?
attribute.in(value.arel.ast)
when Array, ActiveRecord::Associations::CollectionProxy
values = value.to_a.map {|x| x.is_a?(ActiveRecord::Base) ? x.id : x}
ranges, values = values.partition {|v| v.is_a?(Range) || v.is_a?(Arel::Relation)}
array_predicates = ranges.map {|range| attribute.in(range)}
if values.include?(nil)
values = values.compact
if values.empty?
array_predicates << attribute.eq(nil)
else
array_predicates << attribute.in(values.compact).or(attribute.eq(nil))
end
else
array_predicates << attribute.in(values)
end
array_predicates.inject {|composite, predicate| composite.or(predicate)}
when Range, Arel::Relation
attribute.in(value)
when ActiveRecord::Base
attribute.eq(value.id)
when Class
# FIXME: I think we need to deprecate this behavior
attribute.eq(value.name)
else
attribute.eq(value)
end
end
end
predicates.flatten
end
end
end
|