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# -*- coding: utf-8 -*-
module ActiveRecord
module NullRelation # :nodoc:
def exec_queries
@records = []
end
def pluck(*column_names)
[]
end
def delete_all(_conditions = nil)
0
end
def update_all(_updates, _conditions = nil, _options = {})
0
end
def delete(_id_or_array)
0
end
def size
calculate :size, nil
end
def empty?
true
end
def any?
false
end
def many?
false
end
def to_sql
""
end
def count(*)
calculate :count, nil
end
def sum(*)
calculate :sum, nil
end
def average(*)
calculate :average, nil
end
def minimum(*)
calculate :minimum, nil
end
def maximum(*)
calculate :maximum, nil
end
def calculate(operation, _column_name, _options = {})
# TODO: Remove _options argument as soon we remove support to
# activerecord-deprecated_finders.
if [:count, :sum, :size].include? operation
group_values.any? ? Hash.new : 0
elsif [:average, :minimum, :maximum].include?(operation) && group_values.any?
Hash.new
else
nil
end
end
def exists?(_id = false)
false
end
end
end
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