ctucx.git: oeffisearch

explicitly handle empty via

diff --git a/client/js/languages.js b/client/js/languages.js
@@ -7,6 +7,7 @@ export const languages = {
 		'products':           'Produkte',
 		'from':               'Von',
 		'via':                'Über',
+		'optional':           '(optional)',
 		'to':                 'Nach',
 		'date':               'Datum',
 		'time':               'Uhrzeit',

@@ -61,6 +62,7 @@ export const languages = {
 		'products':          'Products',
 		'from':              'From',
 		'via':               'Via',
+		'optional':          '(optional)',
 		'to':                'To',
 		'date':              'Date',
 		'time':              'Time',

diff --git a/client/js/searchView.js b/client/js/searchView.js
@@ -35,7 +35,7 @@ const searchTemplate = (journeysHistory) => html`
 			<div class="suggestions" id="fromSuggestions"></div>
 
 			<label for="via">${t('via')}:</label>
-			<input type="text" name="via" id="via" placeholder="${t('via')}" value="${viaValue}" autocomplete="off" @focus=${startTyping} @blur=${stopTyping} @keyup=${onKeyup} @keydown=${onKeydown} required>
+			<input type="text" name="via" id="via" placeholder="${t('via')} ${t('optional')}" value="${viaValue}" autocomplete="off" @focus=${startTyping} @blur=${stopTyping} @keyup=${onKeyup} @keydown=${onKeydown} required>
 			<div class="suggestions" id="viaSuggestions"></div>
 
 			<label for="to">${t('to')}:</label>

@@ -237,7 +237,9 @@ export const search = async (requestId) => {
 		from = suggestions[0]
 	}
 
-	if (Object.entries(suggestionsCache.via).length !== 0) {
+	if (ElementById('via').value == "") {
+		via = null;
+	} else if (Object.entries(suggestionsCache.via).length !== 0) {
 		via = suggestionsCache.via;
 	} else {
 		let suggestions = await get("/suggestions",  {"query": ElementById('via').value, "results": 1}, true);

@@ -277,12 +279,13 @@ export const search = async (requestId) => {
 
 	let params = {
 			"fromPoint":     from,
-			"viaPoint":      via,
 			"toPoint":       to,
 			"accessibility": accessibility,
 			"products":      products
 		}
 
+	if (via !== null) params.viaPoint = via;
+
 	if (!isDep) {
 		params.arrival = timestamp
 	} else {