Module: NCore::Associations

Defined in:
lib/ncore/associations.rb

Instance Method Summary collapse

Instance Method Details

#belongs_to(assoc, klass = nil) ⇒ Object 



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# File 'lib/ncore/associations.rb', line 57

def belongs_to(assoc, klass=nil)
  assoc = assoc.to_s
  klass ||= "#{module_name}::#{assoc.camelize}"
  class_eval "    attr :\#{assoc}_id\n    def \#{assoc}(params={})\n      return nil unless \#{assoc}_id\n      if params.empty?\n        # only cache unfiltered, default api call\n        @attribs[:\#{assoc}] ||= \#{klass}.find(\#{assoc}_id, {}, api_creds)\n      else\n        \#{klass}.find(\#{assoc}_id, params, api_creds)\n      end\n    end\n  M1\n  class_eval <<-M2, __FILE__, __LINE__+1\n    def \#{assoc}_id=(v)\n      @attribs[:\#{assoc}] = nil unless @attribs[:\#{assoc}_id] == v\n      @attribs[:\#{assoc}_id] = v\n    end\n  M2\nend\n", __FILE__, __LINE__+1

#has_many(assoc, klass = nil) ⇒ Object 



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# File 'lib/ncore/associations.rb', line 4

def has_many(assoc, klass=nil)
  assoc = assoc.to_s
  klass ||= "#{module_name}::#{assoc.camelize.singularize}"
  key = "#{attrib_name}_id"
  class_eval "    def \#{assoc}(params={})\n      return [] unless id\n      reload = params.delete :reload\n      if params.empty?\n        # only cache unfiltered, default api call\n        @attribs[:\#{assoc}] = (!reload && @attribs[:\#{assoc}]) || \#{klass}.all({\#{key}: id}, api_creds)\n      else\n        \#{klass}.all(params.merge(\#{key}: id), api_creds)\n      end\n    end\n  M1\n  class_eval <<-M2, __FILE__, __LINE__+1\n    def find_\#{assoc.singularize}(aid, params={})\n      raise UnsavedObjectError unless id\n      ## \#{assoc}.detect{|o| o.id == aid} || raise(RecordNotFound)\n      # @attribs[:\#{assoc}].detect{|o| o.id == aid} || \#{klass}.find(aid, {\#{key}: id}, api_creds)\n      \#{klass}.find(aid, {\#{key}: id}.reverse_merge(params), api_creds)\n    end\n  M2\n  # will always return the object; check .errors? or .valid? to see how it went\n  class_eval <<-M3, __FILE__, __LINE__+1\n    def create_\#{assoc.singularize}(params={})\n      raise UnsavedObjectError unless id\n      \#{klass}.create(params.merge(\#{key}: id), api_creds)\n    end\n  M3\n  # will always return the object; check .errors? or .valid? to see how it went\n  class_eval <<-M4, __FILE__, __LINE__+1\n    def update_\#{assoc.singularize}(aid, params={})\n      obj = find_\#{assoc.singularize}(aid)\n      obj.update(params)\n      obj\n    end\n  M4\n  class_eval <<-M5, __FILE__, __LINE__+1\n    def create_\#{assoc.singularize}!(params={})\n      raise UnsavedObjectError unless id\n      \#{klass}.create!(params.merge(\#{key}: id), api_creds)\n    end\n  M5\n  class_eval <<-M6, __FILE__, __LINE__+1\n    def update_\#{assoc.singularize}!(aid, params={})\n      obj = find_\#{assoc.singularize}(aid)\n      obj.save!(params)\n    end\n  M6\nend\n", __FILE__, __LINE__+1