From dccdf2bb0d77c7530b597e40ba0263c83ccdd057 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Abdulkadir=20Furkan=20=C5=9Eanl=C4=B1?=
 <abdulkadirfsanli@protonmail.com>
Date: Sat, 13 Oct 2018 08:25:03 +0200
Subject: [PATCH] Add database spec document and establish lesson ids

---
 doc/db_spec.md | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100644 doc/db_spec.md

diff --git a/doc/db_spec.md b/doc/db_spec.md
new file mode 100644
index 0000000..f8b30fa
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+++ b/doc/db_spec.md
@@ -0,0 +1,50 @@
+# Database specification
+
+## Lesson IDs
+
+`lesson_id` and `g*` equivalents of lessons.
+
+- Academic Writing
+    - 'aw'
+- Biology
+    - 'bi'
+- Business Management
+    - 'bm'
+- Chemistry
+    - 'ch'
+- Computer Science
+    - 'cs'
+- Economics
+    - 'ec'
+- English A
+    - 'ena'
+- English B
+    - 'enb'
+- French
+    - 'fr'
+- Geography
+    - 'ge'
+- German
+    - 'de'
+- Guidance
+    - 'gu'
+- Mathematical Studies
+    - 'mst'
+- Mathematics HL
+    - 'mhl'
+- Mathematics SL
+    - 'msl'
+- Polish A
+    - 'pl'
+- Psychology
+    - 'ps'
+- Self-Taught Language A
+    - 'st'
+- Spanish
+    - 'es'
+- Theory of Knowledge
+    - 'tok'
+- Turkish A
+    - 'tr'
+- Visual Arts
+    - 'va'
\ No newline at end of file