From 8c11caaa4be9606eccaddce4b71aabb738e6db1f Mon Sep 17 00:00:00 2001
From: cryptogopher <cryptogopher@noreply.me>
Date: Sun, 7 Apr 2024 00:42:15 +0200
Subject: [PATCH] Add default Units seed

---
 db/seeds.rb | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/db/seeds.rb b/db/seeds.rb
index 263457c..ff9e6e0 100644
--- a/db/seeds.rb
+++ b/db/seeds.rb
@@ -16,3 +16,23 @@ User.transaction do
 rescue ActiveRecord::RecordInvalid => exception
   puts "failed. #{exception.message}"
 end
+
+# Formulas will be deleted as dependent on Quantities
+#[Source, Quantity, Unit].each { |model| model.defaults.delete_all }
+
+Unit.transaction do
+  Unit.defaults.delete_all
+
+  unit_1 = Unit.create symbol: "1",   name: "dimensionless, one"
+           Unit.create symbol: "%",   base: unit_1, multiplier: 1e-2, name: "percent"
+           Unit.create symbol: "‰",   base: unit_1, multiplier: 1e-3, name: "promille"
+           Unit.create symbol: "‱",   base: unit_1, multiplier: 1e-4, name: "basis point"
+           Unit.create symbol: "ppm", base: unit_1, multiplier: 1e-6, name: "parts per million"
+
+  unit_g = Unit.create symbol: "g",  name: "gram"
+           Unit.create symbol: "ug", base: unit_g, multiplier: 1e-6, name: "microgram"
+           Unit.create symbol: "mg", base: unit_g, multiplier: 1e-3, name: "milligram"
+           Unit.create symbol: "kg", base: unit_g, multiplier: 1e3,  name: "kilogram"
+
+  Unit.create symbol: "kcal", name: "kilocalorie"
+end