refactor: useRequestBuilder

packages/system/src/query-manager.ts

@@ -56,7 +56,9 @@ export class QueryManager extends EventEmitter<QueryManagerEvents> {
       });
 
       this.#queries.set(req.id, q);
-      this.emit("change");
+      if (req.numFilters > 0) {
+        this.emit("change");
+      }
       return q;
     }
   }

packages/system/src/query.ts

@@ -181,10 +181,13 @@ export class Query extends EventEmitter<QueryEvents> {
    * Adds another request to this one
    */
   addRequest(req: RequestBuilder) {
-    this.#log("Add query %O to %s", req, this.id);
-    this.requests.push(...req.buildRaw());
-    this.#start();
-    return true;
+    if (req.numFilters > 0) {
+      this.#log("Add query %O to %s", req, this.id);
+      this.requests.push(...req.buildRaw());
+      this.#start();
+      return true;
+    }
+    return false;
   }
 
   isOpen() {
@@ -326,7 +329,9 @@ export class Query extends EventEmitter<QueryEvents> {
     if (this.#replaceable) {
       rawFilters.push(...this.filters);
     }
-    this.emit("request", this.id, rawFilters);
+    if (rawFilters.length > 0) {
+      this.emit("request", this.id, rawFilters);
+    }
   }
 
   #stopCheckTraces() {

packages/system/src/request-builder.ts

@@ -72,6 +72,11 @@ export class RequestBuilder {
     return this.#options;
   }
 
+  clear() {
+    this.#builders = [];
+    this.#options = undefined;
+  }
+
   /**
    * Add another request builders filters to this one
    */