Method: Audrey::Engine::SQLite3::Query::Q0#iterator

Defined in:
lib/audrey/engine/sqlite3/query/q0.rb

#iterator(opts = {}) ⇒ Object

iterator



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# File 'lib/audrey/engine/sqlite3/query/q0.rb', line 50

def iterator(opts={})
	# $tm.hrm
	subqueries = prepare_subqueries()
	exec_opts = {}
	
	# sql
	sql = <<~'SQL'
	select o.pk
		from objects o, query_rows qr
	where
		o.pk = qr.parent and
		qr.subquery = :sqpk
	SQL
	
	# options
	exec_opts['sqpk'] = subqueries['objects']
	
	# limit
	if @fquery.limit
		exec_opts['limit'] = @fquery.limit
		sql += "limit :limit\n"
	end
	
	# offset
	if @fquery.offset
		exec_opts['offset'] = @fquery.offset
		sql += "offset :offset\n"
	end
	
	# stmt and resultset
	stmt = @dbh.prepare(sql)
	return stmt.execute(exec_opts)
end