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dominiceden/get_appointments_by_day_number_of_week.rb

Last active November 6, 2016 20:25
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Get dates for a particular date range and a day of the week in PostgreSQL
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get_appointments_by_day_number_of_week.rb
# Monday is 1
# Tuesday is 2
# Wednesday is 3
# Thursday is 4
# Friday is 5
# Saturday is 6
# Sunday is 7
# Note - the Postgres isodow function as used below gives us Monday - Sunday as 0-7. The dow function does Sunday-Monday, 0-6.
# Here we get all of Friday's appointments in a given date range and for a given barber_id.
Appointment.find_by_sql(SELECT * from appointments WHERE (barber_id = 1 AND EXTRACT(isodow FROM start_time) IN (5) AND start_time >= '2016-11-11 06:00:00' AND end_time <= '2016-11-18 10:00:00'))
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