update migrations

src-tauri/migrations/0001_path_node_table.sql

@@ -1,9 +0,0 @@
--- migrate:up
-CREATE TABLE PathNode (
-    id integer primary key,
-    title text,
-    description text
-);
-
--- migrate:down
--- DROP TABLE PathNode;

src-tauri/migrations/0001_path_table.down.sql

@@ -0,0 +1,2 @@
+DROP TABLE pathVersions;
+DROP TABLE path;

src-tauri/migrations/0001_path_table.up.sql

@@ -0,0 +1,12 @@
+CREATE TABLE path (
+    id integer primary key,
+    title text,
+    description text,
+    versions text
+);
+
+CREATE TABLE pathVersions (
+    pathId integer references path(id),
+    versionNumber string,
+    primary key (pathId, versionNumber)
+);

src-tauri/migrations/0002_node_exercise.sql

@@ -1,9 +0,0 @@
--- migrate:up
-create table NodeExercise (
-    id integer primary key,
-    ex_type text,
-    content text
-);
-
--- migrate:down
--- DROP TABLE NodeExercise;

src-tauri/migrations/0002_node_table.down.sql

@@ -0,0 +1 @@
+DROP TABLE node;

src-tauri/migrations/0002_node_table.up.sql

@@ -0,0 +1,6 @@
+CREATE TABLE node (
+    id integer primary key,
+    title text,
+    description text,
+    pathId integer references path(id)
+);

src-tauri/migrations/0003_exercise_table.down.sql

@@ -0,0 +1 @@
+DROP TABLE exercise;

src-tauri/migrations/0003_exercise_table.up.sql

@@ -0,0 +1,6 @@
+create table exercise (
+    id integer primary key,
+    ex_type text,
+    content text,
+    nodeId integer references node(id)
+);