working on constraint design

web/src/main.rs

@@ -100,9 +100,8 @@ mod api {
         for (var, dom, ini) in template::Template::generate_variables(&domain) {
             problem = problem.add_variable(var, dom, ini);
         }
-        let mut problem = problem
-            .add_constraint(|_| true)
-            .finish();
+        let problem = problem.finish();
+        
         if let Some(one_result) = problem.solve_one() {
             Json(TemplateObject {
                 items: one_result
@@ -158,9 +157,8 @@ mod api {
             // If found, override initial value
             problem = problem.add_variable(var, dom, ini);
         };
-        let mut problem = problem
-            .add_constraint(|_| true)
-            .finish();
+        let problem = problem.finish();
+
         if let Some(one_result) = problem.solve_one() {
             Json(TemplateObject {
                 items: one_result