feat: Implement module update functionality with a new API endpoint, client method, and @hello-pangea/dnd dependency.

services/cms-service/src/handlers.rs

@@ -880,3 +880,33 @@ pub async fn get_course_outline(
         modules: modules_with_lessons,
     }))
 }
+
+pub async fn update_module(
+    claims: common::auth::Claims,
+    State(pool): State<PgPool>,
+    Path(id): Path<Uuid>,
+    Json(payload): Json<serde_json::Value>,
+) -> Result<Json<Module>, StatusCode> {
+    let title = payload.get("title").and_then(|t| t.as_str());
+    let position = payload.get("position").and_then(|v| v.as_i64()).map(|v| v as i32);
+
+    let updated_module = sqlx::query_as::<_, Module>(
+        "UPDATE modules 
+         SET title = COALESCE($1, title), 
+             position = COALESCE($2, position)
+         WHERE id = $3 RETURNING *"
+    )
+    .bind(title)
+    .bind(position)
+    .bind(id)
+    .fetch_one(&pool)
+    .await
+    .map_err(|e| {
+        tracing::error!("Update module failed: {}", e);
+        StatusCode::INTERNAL_SERVER_ERROR
+    })?;
+
+    log_action(&pool, claims.sub, "UPDATE", "Module", id, json!(payload)).await;
+
+    Ok(Json(updated_module))
+}

services/cms-service/src/handlers_update_module.rs

@@ -0,0 +1,30 @@
+
+pub async fn update_module(
+    claims: common::auth::Claims,
+    State(pool): State<PgPool>,
+    Path(id): Path<Uuid>,
+    Json(payload): Json<serde_json::Value>,
+) -> Result<Json<Module>, StatusCode> {
+    let title = payload.get("title").and_then(|t| t.as_str());
+    let position = payload.get("position").and_then(|v| v.as_i64()).map(|v| v as i32);
+
+    let updated_module = sqlx::query_as::<_, Module>(
+        "UPDATE modules 
+         SET title = COALESCE($1, title), 
+             position = COALESCE($2, position)
+         WHERE id = $3 RETURNING *"
+    )
+    .bind(title)
+    .bind(position)
+    .bind(id)
+    .fetch_one(&pool)
+    .await
+    .map_err(|e| {
+        tracing::error!("Update module failed: {}", e);
+        StatusCode::INTERNAL_SERVER_ERROR
+    })?;
+
+    log_action(&pool, claims.sub, "UPDATE", "Module", id, json!(payload)).await;
+
+    Ok(Json(updated_module))
+}

services/cms-service/src/main.rs

@@ -42,6 +42,7 @@ async fn main() {
         .route("/courses/{id}/outline", get(handlers::get_course_outline))
         .route("/courses/{id}/analytics", get(handlers::get_course_analytics))
         .route("/modules", get(handlers::get_modules).post(handlers::create_module))
+        .route("/modules/{id}", axum::routing::put(handlers::update_module))
         .route("/lessons", get(handlers::get_lessons).post(handlers::create_lesson))
         .route("/lessons/{id}", get(handlers::get_lesson).put(handlers::update_lesson))
         .route("/lessons/{id}/transcribe", post(handlers::process_transcription))

web/studio/package-lock.json

@@ -8,6 +8,7 @@
       "name": "studio",
       "version": "0.1.0",
       "dependencies": {
+        "@hello-pangea/dnd": "^18.0.1",
         "clsx": "^2.1.1",
         "framer-motion": "^11.2.10",
         "lucide-react": "^0.395.0",
@@ -39,6 +40,14 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/@babel/runtime": {
+      "version": "7.28.4",
+      "resolved": "https://registry.npmjs.org/@babel/runtime/-/runtime-7.28.4.tgz",
+      "integrity": "sha512-Q/N6JNWvIvPnLDvjlE1OUBLPQHH6l3CltCEsHIujp45zQUSSh8K+gHnaEX45yAT1nyngnINhvWtzN+Nb9D8RAQ==",
+      "engines": {
+        "node": ">=6.9.0"
+      }
+    },
     "node_modules/@emnapi/core": {
       "version": "1.7.1",
       "resolved": "https://registry.npmjs.org/@emnapi/core/-/core-1.7.1.tgz",
@@ -129,6 +138,22 @@
         "node": "^12.22.0 || ^14.17.0 || >=16.0.0"
       }
     },
+    "node_modules/@hello-pangea/dnd": {
+      "version": "18.0.1",
+      "resolved": "https://registry.npmjs.org/@hello-pangea/dnd/-/dnd-18.0.1.tgz",
+      "integrity": "sha512-xojVWG8s/TGrKT1fC8K2tIWeejJYTAeJuj36zM//yEm/ZrnZUSFGS15BpO+jGZT1ybWvyXmeDJwPYb4dhWlbZQ==",
+      "dependencies": {
+        "@babel/runtime": "^7.26.7",
+        "css-box-model": "^1.2.1",
+        "raf-schd": "^4.0.3",
+        "react-redux": "^9.2.0",
+        "redux": "^5.0.1"
+      },
+      "peerDependencies": {
+        "react": "^18.0.0 || ^19.0.0",
+        "react-dom": "^18.0.0 || ^19.0.0"
+      }
+    },
     "node_modules/@humanwhocodes/config-array": {
       "version": "0.13.0",
       "resolved": "https://registry.npmjs.org/@humanwhocodes/config-array/-/config-array-0.13.0.tgz",
@@ -513,13 +538,13 @@
       "version": "15.7.15",
       "resolved": "https://registry.npmjs.org/@types/prop-types/-/prop-types-15.7.15.tgz",
       "integrity": "sha512-F6bEyamV9jKGAFBEmlQnesRPGOQqS2+Uwi0Em15xenOxHaf2hv6L8YCVn3rPdPJOiJfPiCnLIRyvwVaqMY3MIw==",
-      "dev": true
+      "devOptional": true
     },
     "node_modules/@types/react": {
       "version": "18.3.27",
       "resolved": "https://registry.npmjs.org/@types/react/-/react-18.3.27.tgz",
       "integrity": "sha512-cisd7gxkzjBKU2GgdYrTdtQx1SORymWyaAFhaxQPK9bYO9ot3Y5OikQRvY0VYQtvwjeQnizCINJAenh/V7MK2w==",
-      "dev": true,
+      "devOptional": true,
       "dependencies": {
         "@types/prop-types": "*",
         "csstype": "^3.2.2"
@@ -534,6 +559,11 @@
         "@types/react": "^18.0.0"
       }
     },
+    "node_modules/@types/use-sync-external-store": {
+      "version": "0.0.6",
+      "resolved": "https://registry.npmjs.org/@types/use-sync-external-store/-/use-sync-external-store-0.0.6.tgz",
+      "integrity": "sha512-zFDAD+tlpf2r4asuHEj0XH6pY6i0g5NeAHPn+15wk3BV6JA69eERFXC1gyGThDkVa1zCyKr5jox1+2LbV/AMLg=="
+    },
     "node_modules/@typescript-eslint/eslint-plugin": {
       "version": "8.50.0",
       "resolved": "https://registry.npmjs.org/@typescript-eslint/eslint-plugin/-/eslint-plugin-8.50.0.tgz",
@@ -1593,6 +1623,14 @@
         "node": ">= 8"
       }
     },
+    "node_modules/css-box-model": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/css-box-model/-/css-box-model-1.2.1.tgz",
+      "integrity": "sha512-a7Vr4Q/kd/aw96bnJG332W9V9LkJO69JRcaCYDUqjp6/z0w6VcZjgAcTbgFxEPfBgdnAwlh3iwu+hLopa+flJw==",
+      "dependencies": {
+        "tiny-invariant": "^1.0.6"
+      }
+    },
     "node_modules/cssesc": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/cssesc/-/cssesc-3.0.0.tgz",
@@ -1609,7 +1647,7 @@
       "version": "3.2.3",
       "resolved": "https://registry.npmjs.org/csstype/-/csstype-3.2.3.tgz",
       "integrity": "sha512-z1HGKcYy2xA8AGQfwrn0PAy+PB7X/GSj3UVJW9qKyn43xWa+gl5nXmU4qqLMRzWVLFC8KusUX8T/0kCiOYpAIQ==",
-      "dev": true
+      "devOptional": true
     },
     "node_modules/damerau-levenshtein": {
       "version": "1.0.8",
@@ -4299,6 +4337,11 @@
         }
       ]
     },
+    "node_modules/raf-schd": {
+      "version": "4.0.3",
+      "resolved": "https://registry.npmjs.org/raf-schd/-/raf-schd-4.0.3.tgz",
+      "integrity": "sha512-tQkJl2GRWh83ui2DiPTJz9wEiMN20syf+5oKfB03yYP7ioZcJwsIK8FjrtLwH1m7C7e+Tt2yYBlrOpdT+dyeIQ=="
+    },
     "node_modules/react": {
       "version": "18.3.1",
       "resolved": "https://registry.npmjs.org/react/-/react-18.3.1.tgz",
@@ -4328,6 +4371,28 @@
       "integrity": "sha512-24e6ynE2H+OKt4kqsOvNd8kBpV65zoxbA4BVsEOB3ARVWQki/DHzaUoC5KuON/BiccDaCCTZBuOcfZs70kR8bQ==",
       "dev": true
     },
+    "node_modules/react-redux": {
+      "version": "9.2.0",
+      "resolved": "https://registry.npmjs.org/react-redux/-/react-redux-9.2.0.tgz",
+      "integrity": "sha512-ROY9fvHhwOD9ySfrF0wmvu//bKCQ6AeZZq1nJNtbDC+kk5DuSuNX/n6YWYF/SYy7bSba4D4FSz8DJeKY/S/r+g==",
+      "dependencies": {
+        "@types/use-sync-external-store": "^0.0.6",
+        "use-sync-external-store": "^1.4.0"
+      },
+      "peerDependencies": {
+        "@types/react": "^18.2.25 || ^19",
+        "react": "^18.0 || ^19",
+        "redux": "^5.0.0"
+      },
+      "peerDependenciesMeta": {
+        "@types/react": {
+          "optional": true
+        },
+        "redux": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/read-cache": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/read-cache/-/read-cache-1.0.0.tgz",
@@ -4349,6 +4414,11 @@
         "node": ">=8.10.0"
       }
     },
+    "node_modules/redux": {
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/redux/-/redux-5.0.1.tgz",
+      "integrity": "sha512-M9/ELqF6fy8FwmkpnF0S3YKOqMyoWJ4+CS5Efg2ct3oY9daQvd/Pc71FpGZsVsbl3Cpb+IIcjBDUnnyBdQbq4w=="
+    },
     "node_modules/reflect.getprototypeof": {
       "version": "1.0.10",
       "resolved": "https://registry.npmjs.org/reflect.getprototypeof/-/reflect.getprototypeof-1.0.10.tgz",
@@ -5116,6 +5186,11 @@
         "node": ">=0.8"
       }
     },
+    "node_modules/tiny-invariant": {
+      "version": "1.3.3",
+      "resolved": "https://registry.npmjs.org/tiny-invariant/-/tiny-invariant-1.3.3.tgz",
+      "integrity": "sha512-+FbBPE1o9QAYvviau/qC5SE3caw21q3xkvWKBtja5vgqOWIHHJ3ioaq1VPfn/Szqctz2bU/oYeKd9/z5BL+PVg=="
+    },
     "node_modules/tinyglobby": {
       "version": "0.2.15",
       "resolved": "https://registry.npmjs.org/tinyglobby/-/tinyglobby-0.2.15.tgz",
@@ -5386,6 +5461,14 @@
         "punycode": "^2.1.0"
       }
     },
+    "node_modules/use-sync-external-store": {
+      "version": "1.6.0",
+      "resolved": "https://registry.npmjs.org/use-sync-external-store/-/use-sync-external-store-1.6.0.tgz",
+      "integrity": "sha512-Pp6GSwGP/NrPIrxVFAIkOQeyw8lFenOHijQWkUTrDvrF4ALqylP2C/KCkeS9dpUM3KvYRQhna5vt7IL95+ZQ9w==",
+      "peerDependencies": {
+        "react": "^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0"
+      }
+    },
     "node_modules/util-deprecate": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",

web/studio/package.json

@@ -9,22 +9,23 @@
     "lint": "next lint"
   },
   "dependencies": {
+    "@hello-pangea/dnd": "^18.0.1",
+    "clsx": "^2.1.1",
+    "framer-motion": "^11.2.10",
+    "lucide-react": "^0.395.0",
+    "next": "14.2.21",
     "react": "^18",
     "react-dom": "^18",
-    "next": "14.2.21",
-    "lucide-react": "^0.395.0",
-    "framer-motion": "^11.2.10",
-    "clsx": "^2.1.1",
     "tailwind-merge": "^2.3.0"
   },
   "devDependencies": {
-    "typescript": "^5",
     "@types/node": "^20",
     "@types/react": "^18",
     "@types/react-dom": "^18",
+    "eslint": "^8",
+    "eslint-config-next": "14.2.21",
     "postcss": "^8",
     "tailwindcss": "^3.4.1",
-    "eslint": "^8",
+    "typescript": "^5"
-    "eslint-config-next": "14.2.21"
   }
 }

web/studio/src/lib/api.ts

@@ -167,6 +167,7 @@ export const cmsApi = {
 
     // Modules & Lessons
     createModule: (course_id: string, title: string, position: number): Promise<Module> => apiFetch('/modules', { method: 'POST', body: JSON.stringify({ course_id, title, position }) }),
+    updateModule: (id: string, payload: Partial<Module>): Promise<Module> => apiFetch(`/modules/${id}`, { method: 'PUT', body: JSON.stringify(payload) }),
     createLesson: (module_id: string, title: string, content_type: string, position: number): Promise<Lesson> => apiFetch('/lessons', { method: 'POST', body: JSON.stringify({ module_id, title, content_type, position }) }),
     getLesson: (id: string): Promise<Lesson> => apiFetch(`/lessons/${id}`),
     updateLesson: (id: string, payload: Partial<Lesson>): Promise<Lesson> => apiFetch(`/lessons/${id}`, { method: 'PUT', body: JSON.stringify(payload) }),