Class: CaRuby::Database::Reader::TemplateBuilder

Inherits:
Object
  • Object
show all
Defined in:
lib/caruby/database/reader_template_builder.rb

Overview

TemplateBuilder builds a template suitable for a caCORE saarch database operation.

Instance Method Summary collapse

Instance Method Details

#build_template(obj, hash = nil) ⇒ Object

Returns a template for matching the domain object obj and the optional hash values. The default hash attributes are the Propertied#searchable_attributes. The template includes only the non-domain attributes of the hash references.



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# File 'lib/caruby/database/reader_template_builder.rb', line 22

def build_template(obj, hash=nil)
  # split the attributes into reference and non-reference attributes.
  # the new search template object is built from the non-reference attributes.
  # the reference attributes values are copied and added.
  logger.debug { "Building search template for #{obj.qp}..." }
  hash ||= obj.value_hash(obj.class.searchable_attributes)
  # the searchable attribute => value hash
  rh, nrh = hash.split { |pa, value| Jinx::Resource === value }
  # make the search template from the non-reference attributes
  tmpl = obj.class.new.merge_attributes(nrh)
  # get references for the search template
  unless rh.empty? then
    logger.debug { "Collecting search reference parameters for #{obj.qp} from attributes #{rh.keys.to_series}..." }
  end
  rh.each { |pa, ref| add_search_template_reference(tmpl, ref, pa) }
  tmpl
end