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Contents
module FlattenRecord
module Meta
class Node
attr_reader :parent, :children, :target_model, :model
def initialize(parent, target_model, model)
@parent = parent
@target_model = target_model.to_s.underscore
@model = model.to_s.underscore
end
def target_model
@target_model.camelize.constantize
end
def model
@model.camelize.constantize
end
def traverse_by(attr, value)
attr_value = send("#{attr}")
if !value.respond_to?(:to_s) || !attr_value.respond_to?(:to_s)
raise "traverse error: to_s method required for comparison"
end
if value.to_s == attr_value.to_s
return self
else
return nil
end
end
def prefix
return custom_prefix unless custom_prefix.nil?
return "" if is_parent_root?
"#{target_model_name}_"
end
protected
def build(definition)
definition.validates_with(target_model, model)
@_key = definition[:_key]
@custom_prefix = definition[:definition][:prefix]
@custom_prefix = @custom_prefix.to_s unless @custom_prefix.nil?
raise definition.error_message unless definition.valid?
self
end
def custom_prefix
@custom_prefix
end
def _key
@_key
end
# target helpers
def target_model_name
@target_model
end
def target_columns
target_model.columns
end
def inspect
# this prevents irb/console to inspect
# circular references on big tree caused problem on #inspect
end
private
def is_parent_root?
parent.present? && parent.instance_of?(RootNode)
end
end
end
end
Version data entries
6 entries across 6 versions & 1 rubygems