Maintain order on languages.

app/database.py

@@ -52,19 +52,19 @@ def load_languages(conn):
     cursor = None
     try:
         cursor = conn.cursor()
-        for code, name in code_to_lang.items():
+        for pos, (code, name) in enumerate(list(code_to_lang.items())):
             cursor.execute(
                 f"""
                 INSERT INTO {SCHEMA_NAME}.{LANG_TABLE_NAME}
-                  (code, name)
+                  (code, name, pos)
                 VALUES
-                  (%s, %s)
+                  (%s, %s, %s)
                 ON CONFLICT
                   (code)
                 DO UPDATE SET
                   name = EXCLUDED.name;
                 """,
-                [code, name],
+                [code, name, pos],
             )
         conn.commit()
     finally:

app/types.py

@@ -1,4 +1,5 @@
 import enum
+from collections import OrderedDict
 
 
 class Site(enum.Enum):
@@ -109,6 +110,10 @@ class Language(enum.Enum):
     zu_ZA = "isiZulu"
 
 
-code_to_lang = {lang.name.replace("_", "-"): lang.value for lang in Language}
+code_to_lang = OrderedDict(
+    [(lang.name.replace("_", "-"), lang.value) for lang in Language]
+)
 
-lang_to_code = {lang.value: lang.name.replace("_", "-") for lang in Language}
+lang_to_code = OrderedDict(
+    [(lang.value, lang.name.replace("_", "-")) for lang in Language]
+)

sql/init.sql

@@ -27,6 +27,7 @@ CREATE TABLE coach_scraper.languages
   ( id SERIAL PRIMARY KEY
   , code VARCHAR(8) NOT NULL
   , name VARCHAR(128) NOT NULL
+  , pos INTEGER NOT NULL
   );
 
 CREATE UNIQUE INDEX IF NOT EXISTS