specify next steps

README.md

@@ -7,6 +7,7 @@
 ## Next steps
 
 - [x] Station
+- [ ] Path
 
 ## Fancy features
 - see when a group starts going to your direction

migration.sql

@@ -9,13 +9,29 @@ CREATE TABLE station (
     lng REAL
 );
 
+CREATE TABLE path (
+    id INTEGER PRIMARY KEY,
+    name TEXT NOT NULL -- e.g. 'wiwö'
+);
+
+CREATE TABLE path_station (
+    path_id INTEGER,
+    station_id INTEGER,
+    pos INTEGER,
+    PRIMARY KEY (path_id, station_id),
+    FOREIGN KEY (path_id) REFERENCES path(id),
+    FOREIGN KEY (station_id) REFERENCES station(id)
+);
+
 CREATE TABLE "group" (
     id INTEGER PRIMARY KEY,
-    name TEXT NOT NULL,
+    name TEXT NOT NULL UNIQUE,
     notes TEXT,
     amount_people INTEGER,
-    first_station_id INTEGER,
+    first_station_id INTEGER NOT NULL,
     FOREIGN KEY (first_station_id) REFERENCES station(id)
+    path_id INTEGER NOT NULL,
+    FOREIGN KEY (path_id) REFERENCES path(id)
 );
 
 CREATE TABLE group_station (
@@ -31,16 +47,4 @@ CREATE TABLE group_station (
     FOREIGN KEY (station_id) REFERENCES station(id)
 );
 
-CREATE TABLE path (
-    id INTEGER PRIMARY KEY,
-    name TEXT NOT NULL
-);
 
-CREATE TABLE path_station (
-    path_id INTEGER,
-    station_id INTEGER,
-    pos INTEGER,
-    PRIMARY KEY (path_id, station_id),
-    FOREIGN KEY (path_id) REFERENCES path(id),
-    FOREIGN KEY (station_id) REFERENCES station(id)
-);