add header to base yml file for column selection

band-plan-iaru_r1_hf.yml

@@ -1,3 +1,5 @@
+- band: header
+  columns: [band, frequency, mode, bandwidth, description]
 - band: 2.2 km
   mode: CW
   bandwidth: 200

band-plan.html

@@ -90,17 +90,28 @@ div#togglebuttons>button {
 
 		function update_table(bands, additions) {
 			var tdata = [];
+			var header = {};
+
+			// first, fill header
 			bands.forEach((band) => {
+				if (band.band === "header") {
+					header = structuredClone(band);
+				}
+			});
+
+			// then fill tdata
+			bands.forEach((band) => {
+				if (band.band !== "header") {
 					band.parts.forEach((part) => {
-					let p = {
-						"band": band.band,
-						"frequency": typeof part.at !== "undefined" ? part.at : part.start + '\u2013' + part.end,
-						"mode": band.mode,
-						//"band_start": band.start,
-						//"band_end": band.end,
-						"bandwidth": band.bandwidth,
-						"description": part.description,
-					};
+						let p = {};
+						header.columns.forEach((col) => {
+							p[col] = band[col];
+							if (col == "description") {
+								p[col] = part[col];
+							}
+						});
+						p["frequency"] = typeof part.at !== "undefined" ? part.at : part.start + '\u2013' + part.end;
+
 						let parts_already_added = false;
 						additions.forEach((add) => {
 							if (typeof part.at !== "undefined") {
@@ -145,6 +156,7 @@ div#togglebuttons>button {
 						}
 						parts_already_added = false;
 					});
+				}
 			});
 
 			// require in tabular-tables