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Contents
module Shoulda
module Matchers
module ActiveRecord
module AssociationMatchers
# @private
class ModelReflector
delegate :associated_class, :through?, :join_table,
:association_relation, :polymorphic?, :foreign_key,
:association_foreign_key, to: :reflection
def initialize(subject, name)
@subject = subject
@name = name
end
def reflection
@reflection ||= reflect_on_association(name)
end
def reflect_on_association(name)
reflection = model_class.reflect_on_association(name)
if reflection
ModelReflection.new(reflection)
end
end
def model_class
subject.class
end
def build_relation_with_clause(name, value)
case name
when :conditions then associated_class.where(value)
when :order then associated_class.order(value)
else raise ArgumentError, "Unknown clause '#{name}'"
end
end
def extract_relation_clause_from(relation, name)
case name
when :conditions
relation.where_values_hash
when :order
relation.order_values.map { |value| value_as_sql(value) }.join(', ')
else
raise ArgumentError, "Unknown clause '#{name}'"
end
end
protected
attr_reader :subject, :name
def value_as_sql(value)
if value.respond_to?(:to_sql)
value.to_sql
else
value
end
end
end
end
end
end
end
Version data entries
5 entries across 5 versions & 2 rubygems