Method: ModelRecord#update

Defined in:

lib/model/the_record.rb

#update(set: {}, remove: {}, **args) ⇒ Object

Convenient update of the dataset

A) Using PATCH

Previously changed attributes are saved to the database.

Using the optional »:set:« argument ad-hoc attributes can be defined

V.create_class :contracts
obj = Contracts.first
obj.name =  'new_name'
obj.update set: { yesterdays_event: 35 }

updates both, the »name« and the »yesterdays_event«-properties

B) Manual Modus

Update accepts a Block. The contents are parsed to »set«. Manual conversion of ruby-objects to the database-input format is necessary

i.e. hct is an Array of ActiveOrient::Model-records. then obj.update { “positions = #ModelRecord.hcthct.to_or ” } translates to update #83:64 set positions = [#90:18, #91:18, #92:18] return after @this and returns the modified record.

The manual modus accepts the keyword »remove«.

obj.update(remove: true) { “positions = #ModelRecord.hcthct.firsthct.first.to_or ” } translates to update #83:64 remove positions = #90:18 return after @this

This can be achieved by

obj.positions

If the update process is not successful, nil is returned

# File 'lib/model/the_record.rb', line 171

def update set: {}, remove: {}, **args
	logger.progname = 'ActiveOrient::Model#Update'
	#	query( kind: update,  )
	if block_given?			# calling vs. a block is used internally
		# to remove an Item from lists and sets call update(remove: true){ query }
		set_or_remove =  args[:remove].present? ? "remove" : "set"
		#transfer_content from: 	 
		updated_record = 	db.execute{  "update #{rrid}  #{ yield }  return after $current" } &.first
		transfer_content from: updated_record  if updated_record.present?
	else
		set = if remove.present?
						{ remove: remove.merge!( args) }
					elsif set.present?
						 set.merge!( args) 
					else
						 args 
					end
		#	set.merge updated_at: DateTime.now
		if rid.rid?
			q= query.kind(:update)
			if remove.present?
				q.remove(remove)
			else
				q.set(set)
			end
		transfer_content from: 	q.execute(reduce: true){ |y| y[:$current].reload! }
		else  # new record
			 self.attributes.merge!  set
			 save
		end
	end
end