fixed field object search ranking

public/userarea/gridRenderer.js

@@ -143,7 +143,54 @@
             }),
         );
     }
+    // Ranking inizio/centro/fine per select con dati già in memoria.
+    // Restituisce { matcher, sorter } da passare a select2().
+    function rankedLocalSelect2() {
+        return {
+            matcher: function (params, data) {
+                const term = $.trim(params.term || "").toLowerCase();
+                if (term === "") return data;
+                if (typeof data.text === "undefined") return null;
 
+                // AND multi-termine, posizione indipendente
+                const text = data.text.toLowerCase();
+                const terms = term.split(/\s+/).filter(Boolean);
+                const all = terms.every((t) => text.indexOf(t) !== -1);
+                return all ? data : null;
+            },
+            sorter: function (results) {
+                const term = $(
+                    ".select2-container--open .select2-search__field",
+                ).val();
+                const search = (term || "").toLowerCase().trim();
+                if (!search) return results;
+
+                const first = search.split(/\s+/)[0];
+
+                function score(text) {
+                    const t = (text || "").toLowerCase();
+                    if (t === search) return 0; // match esatto
+                    if (t.indexOf(first) === 0) return 1; // inizia col termine
+                    if (new RegExp("(^|\\s)" + escapeRegExp(first)).test(t))
+                        return 2; // inizio parola
+                    return 3; // in mezzo
+                }
+
+                return results.slice().sort(function (a, b) {
+                    const sa = score(a.text);
+                    const sb = score(b.text);
+                    if (sa !== sb) return sa - sb;
+                    return (a.text || "").localeCompare(b.text || "", "it", {
+                        sensitivity: "base",
+                    });
+                });
+            },
+        };
+    }
+
+    function escapeRegExp(s) {
+        return String(s).replace(/[.*+?^${}()|[\]\\]/g, "\\$&");
+    }
     function sortSelect2ResultsByStart(data) {
         const term = $(".select2-container--open .select2-search__field").val();
 
@@ -683,7 +730,7 @@
 
         const reqCls = col.isRequired ? " required-input" : "";
         const req = col.isRequired ? " required" : "";
-        return `<select class="cell-input manual-input fixed-input ${selectClass}${reqCls}" data-fixed-key="${escAttr(col.key)}" data-current-value="${escAttr(value)}"${req}>${options}</select>`;
+        return `<select class="cell-input manual-input fixed-input searchable-fixed ${selectClass}${reqCls}" data-fixed-key="${escAttr(col.key)}" data-current-value="${escAttr(value)}"${req}>${options}</select>`;
     }
 
     function buildDropdownOptionsHTML(fieldId, selectedValue) {
@@ -1203,6 +1250,12 @@
                 items.forEach((item) =>
                     sel.add(new Option(item.text, item.id)),
                 );
+                $(sel).select2({
+                    placeholder: "Seleziona...",
+                    allowClear: true,
+                    width: "100%",
+                    ...rankedLocalSelect2(),
+                });
             }
         });
 
@@ -1705,9 +1758,18 @@
                     const fieldId = this.dataset.fieldId;
                     if (fieldId) $(this).select2(sceltaSelect2Config(fieldId));
                 });
+            $(this)
+                .find(".searchable-fixed:not(.select2-hidden-accessible)")
+                .each(function () {
+                    $(this).select2({
+                        placeholder: "Seleziona...",
+                        allowClear: true,
+                        width: "100%",
+                        ...rankedLocalSelect2(),
+                    });
+                });
         });
     }
-
     // ── Column resize ──────────────────────────────────────────────────────
 
     function initColumnResizers() {