play framewok postgresql : Database 'default' needs evolution - postgresql

Question

i deployed my very simple app in heroku by following tutorials
it works well in my localhost when i run it by sbt run
but it crashes on heroku!
here is my 1.sql:
# --- !Ups
create table contact (
id SERIAL UNIQUE,
name varchar(255),
email varchar(255),
phone varchar(255),
constraint pk_contact primary key (id)
);
create sequence contact_seq;
# --- !Downs
drop table if exists contact;
drop sequence if exists contact_seq;
heroku's log:
p.a.d.DefaultDBApi - Database [default] connected at jdbc:postgresql://...
!!! WARNING! This script contains DOWNS evolutions that are likely destructive
[warn] p.a.d.e.ApplicationEvolutions - Your production database [default] needs evolutions, including downs!
drop table if exists contact;
# --- Rev:1,Downs - a56ada6
name varchar(255),
drop sequence if exists contact_seq;
email varchar(255), phone varchar(255),
# --- Rev:1,Ups - 53110fe
create table contact (
);
id SERIAL UNIQUE,
constraint pk_contact primary key (id)
create sequence contact_seq;
[warn] p.a.d.e.ApplicationEvolutions - Run with -Dplay.evolutions.db.default.autoApply=true and -Dplay.evolutions.db.default.autoApplyDowns=true if you want to run them automatically, including downs (be careful, especially if your down evolutions drop existing data)
[info] application - ApplicationTimer demo: Starting application at 2017-04-28T08:59:05.048Z
Oops, cannot start the server.
#73o5pe90c: Database 'default' needs evolution!
and i also added
play.evolutions.db.default.autoApply=true
at end of my aplication.conf

Answer 1

Run with
-Dplay.evolutions.db.default.autoApply=true
and
-Dplay.evolutions.db.default.autoApplyDowns=true
If you want to run them automatically, including downs (be careful, especially if your down evolutions drop existing data).
You can set these by running:
heroku config:set JAVA_OPTS="-Dplay.evolutions.db.default.autoApply=true -Dplay.evolutions.db.default.autoApplyDowns=true"