[Rails] Search method when date and time have each column

Search method when date and time have each column

Make a note of the search method when the date and time are stored in the DB as character strings.

start_datetime = '2020/12/22 23:35'
scope = Post.all

start_date, start_time = start_datetime.split(' ')
#Extract after the corresponding date
scope = scope.where('start_date >= ?', start_date)
# start_Remove non-applicable times when dates are equal
scope = scope.where.not('start_date = ? AND start_time < ?', start_date, start_time)

reference

• Summary of inner and outer joins in Rails
  • https://qiita.com/yuyasat/items/c2ad37b5a24a58ee3d30