implemented get_path_by_id and get_all_paths

src-tauri/src/models/exercise.rs

@@ -0,0 +1,6 @@
+pub struct Exercise {
+    id: u16,
+    ex_type: String,
+    content: String,
+    node_id: u32
+}

src-tauri/src/models/mod.rs

@@ -0,0 +1,3 @@
+pub mod path;
+pub mod node;
+pub mod exercise;

src-tauri/src/models/node.rs

@@ -0,0 +1,6 @@
+pub struct Node {
+    id: u32,
+    title: String,
+    description: String,
+    path_id: String
+}

src-tauri/src/models/path.rs

@@ -0,0 +1,12 @@
+
+#[derive(Debug, sqlx::FromRow)]
+pub struct Path {
+    id: String,
+    title: String,
+    description: String,
+}
+
+pub struct PathVersions {
+    path_id: String,
+    version_number: String,
+}