added search on add fields ranking

public/userarea/partsTable.js

@@ -220,23 +220,60 @@ $(document).ready(function () {
                 dropdownParent: $("#partsModal"),
                 minimumResultsForSearch: 0,
                 sorter: function (data) {
-                    return data.sort(function (a, b) {
+                    const rawTerm = ((window.__extraFieldSearchTerm || "") + "")
-                        const textA = (a.text || "").toLowerCase();
+                        .toLowerCase()
-                        const textB = (b.text || "").toLowerCase();
+                        .trim();
-                        return textA.localeCompare(textB, "it", {
+                    const terms = rawTerm.split(/\s+/).filter(Boolean);
-                            sensitivity: "base",
+                    const firstTerm = terms[0] || "";
-                            numeric: true,
+
-                        });
+                    const scoreOf = function (text) {
+                        const t = (text || "").toLowerCase();
+                        if (!firstTerm) return 3;
+                        if (t === rawTerm) return 0; // match esatto
+                        if (t.indexOf(firstTerm) === 0) return 1; // inizia col primo termine
+                        if (
+                            new RegExp(
+                                "(^|\\s)" +
+                                    firstTerm.replace(
+                                        /[.*+?^${}()|[\]\\]/g,
+                                        "\\$&",
+                                    ),
+                            ).test(t)
+                        )
+                            return 2; // primo termine a inizio parola
+                        return 3; // presente ma non a inizio parola
+                    };
+
+                    return data.slice().sort(function (a, b) {
+                        const sa = scoreOf(a.text);
+                        const sb = scoreOf(b.text);
+                        if (sa !== sb) return sa - sb;
+                        return (a.text || "")
+                            .toLowerCase()
+                            .localeCompare((b.text || "").toLowerCase(), "it", {
+                                sensitivity: "base",
+                                numeric: true,
+                            });
                     });
                 },
                 matcher: function (params, data) {
                     if ($.trim(params.term) === "") return data;
                     if (typeof data.text === "undefined") return null;
 
-                    const term = params.term.toLowerCase();
+                    // memorizza il termine per il sorter (Select2 non lo passa al sorter)
+                    window.__extraFieldSearchTerm = params.term;
+
+                    const terms = params.term
+                        .toLowerCase()
+                        .split(/\s+/)
+                        .filter(Boolean);
                     const text = data.text.toLowerCase();
 
-                    return text.indexOf(term) > -1 ? data : null;
+                    // AND: tutti i termini devono essere presenti (posizione-indipendente)
+                    for (let i = 0; i < terms.length; i++) {
+                        if (text.indexOf(terms[i]) === -1) return null;
+                    }
+                    return data;
                 },
             });