search with parameters

src/models/products.rs

@@ -37,7 +37,11 @@ impl Entity {
     /// `f_unaccent`, so diacritics never matter. Results are ranked by full-text
     /// rank, then trigram closeness of the name, then recency. An empty/blank
     /// query returns nothing — callers fall back to the plain listing.
-    pub async fn search<C: ConnectionTrait>(db: &C, query: &str) -> Result<Vec<Model>, DbErr> {
+    pub async fn search<C: ConnectionTrait>(
+        db: &C,
+        query: &str,
+        limit: u64,
+    ) -> Result<Vec<Model>, DbErr> {
         let q = query.trim();
         if q.is_empty() {
             return Ok(Vec::new());
@@ -45,7 +49,7 @@ impl Entity {
 
         // Only the model's own columns are selected; the generated `search_vector`
         // is left out so the row maps cleanly back onto `Model`. `$1` is reused
-        // for every occurrence of the query term.
+        // for every occurrence of the query term; `$2` caps the result set.
         let sql = r#"
             SELECT p.created_at, p.updated_at, p.id, p.name, p.slug, p.description,
                    p.currency, p.view_count, p.published, p.published_at, p.category_id
@@ -60,14 +64,14 @@ impl Entity {
                 ts_rank(p.search_vector, websearch_to_tsquery('sk_unaccent', $1)) DESC,
                 word_similarity(f_unaccent($1), f_unaccent(p.name)) DESC,
                 p.published_at DESC NULLS LAST
-            LIMIT 60
+            LIMIT $2
         "#;
 
         Entity::find()
             .from_raw_sql(Statement::from_sql_and_values(
                 db.get_database_backend(),
                 sql,
-                [q.into()],
+                [q.into(), (limit as i64).into()],
             ))
             .all(db)
             .await