Sha256: 8ba51d89ecc358e8c1545849efbd78d244aed9e889f84583b74d5b62f1c39f50
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Size: 1.85 KB
Versions: 18
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Stored size: 1.85 KB
Contents
module Carnival
class KlassService
def initialize(klass)
@klass = klass
end
def relation? sym
!get_association(sym).nil?
end
def relation_type sym
return nil if !relation?(sym)
association = get_association(sym)
return association.macro if association.macro != :has_many
return :many_to_many if many_to_many_relation? association
return :has_many
end
def method_missing(method, *args)
if method.to_s.index(/^is_a_(.*)_relation\?$/)
result = method.to_s.match(/^is_a_(.*)_relation\?$/)
relation = result[1]
return relation_type(args[0]) == relation.to_sym
end
end
def related_class_file_name sym
return nil if !relation?(sym)
get_related_class(sym).name.pluralize.underscore
end
def related_class sym
return nil if !relation?(sym)
get_related_class(sym).classify
end
def extract_namespace
namespace = ""
arr = @klass.to_s.split("::")
namespace = arr[0] if arr.size > 1
namespace
end
def is_namespaced?
@klass.to_s.split("::").size > 1
end
def table_name
@klass.table_name
end
def klass
@klass
end
def get_association association
@klass.reflect_on_association(association.to_sym)
end
def get_related_class sym
association = get_association(sym)
return nil if association.nil?
association.klass
end
def get_foreign_key sym
association = get_association(sym)
return nil if association.nil?
association.foreign_key
end
private
def many_to_many_relation? association
return true if association.macro == :has_and_belongs_to_many
return false if association.macro == :has_many
return true if association.options[:through].present?
return false
end
end
end
Version data entries
18 entries across 18 versions & 1 rubygems