switched to migrations

migrator/migrations/1513802821-DOWN-initial.sql

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+-- 1513802821 DOWN initial
+drop TABLE invoices ;
+drop TABLE users ;

migrator/migrations/1513802821-UP-initial.sql

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+-- 1513802821 UP initial
+CREATE TABLE invoices (id serial primary key, invoice_number varchar(255), date varchar(255), total varchar(255), customer_identifier varchar(255), imported boolean, status varchar(255), vendor varchar(255), potential_duplicate boolean, company varchar(255));
+
+CREATE TABLE users (id serial primary key, provider varchar(255), provider_id varchar(255), data text);

migrator/migrations/1513802974-DOWN-add-first-user.sql

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+-- 1513802974 DOWN add-first-user
+delete from users;

migrator/migrations/1513802974-UP-add-first-user.sql

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+-- 1513802974 UP add-first-user
+insert into users (provider, provider_id, data) values('google', '104596437663417983775', '{:companies ["Brown Chicken Brown Cow" "Campbell Brewing Company"]}');