adds solve_one

web/src/main.rs

@@ -103,19 +103,20 @@ mod api {
         let mut problem = problem
             .add_constraint(|_| true)
             .finish();
-        let results = problem.solve_all();
-        let one_result = results.first().unwrap();
-
-        Json(TemplateObject {
-            items: one_result
-                    .into_iter()
-                    .map(|(k,v)| {
-                        TemplateItems {
-                            key: (format!("{}", k.0), format!("{:?}", k.1)),
-                            value: v.map(|r| RecipeObject::from(&conn, r.clone())),
-                    }})
-                    .collect(),
-        })
+        if let Some(one_result) = problem.solve_one() {
+            Json(TemplateObject {
+                items: one_result
+                        .into_iter()
+                        .map(|(k,v)| {
+                            TemplateItems {
+                                key: (format!("{}", k.0), format!("{:?}", k.1)),
+                                value: v.map(|r| RecipeObject::from(&conn, r.clone())),
+                        }})
+                        .collect(),
+            })
+        } else {
+            panic!("No solution at all !");
+        }
     }
 }