libs/cbi:

- skip client side field validation if corrsponding field was removed due to dependencies
	- human readable error strings in uci section summary
	- implement field validation for dnyamic lists
	- render optional fields when section has tabs

libs/cbi/htdocs/luci-static/resources/cbi.js

@@ -488,15 +488,19 @@ function cbi_validate_field(cbid, optional, type)
 	{
 		var validator = function(reset)
 		{
-			field.className = field.className.replace(/ cbi-input-invalid/g, '');
-
-			// validate value
-			var value = (field.options) ? field.options[field.options.selectedIndex].value : field.value;
-			if( !(((value.length == 0) && optional) || vldcb(value)) )
+			// is not detached
+			if( field.form )
 			{
-				// invalid
-				field.className += ' cbi-input-invalid';
-				return false;
+				field.className = field.className.replace(/ cbi-input-invalid/g, '');
+
+				// validate value
+				var value = (field.options) ? field.options[field.options.selectedIndex].value : field.value;
+				if( !(((value.length == 0) && optional) || vldcb(value)) )
+				{
+					// invalid
+					field.className += ' cbi-input-invalid';
+					return false;
+				}
 			}
 
 			return true;

libs/cbi/luasrc/cbi.lua

@@ -813,7 +813,7 @@ function AbstractSection.parse_optionals(self, section)
 
 	local field = self.map:formvalue("cbi.opt."..self.config.."."..section)
 	for k,v in ipairs(self.children) do
-		if v.optional and not v:cfgvalue(section) then
+		if v.optional and not v:cfgvalue(section) and not next(self.tabs) then
 			if field == v.option then
 				field = nil
 				self.map.proceed = true
@@ -1290,7 +1290,7 @@ end
 
 -- Render if this value exists or if it is mandatory
 function AbstractValue.render(self, s, scope)
-	if not self.optional or self:cfgvalue(s) or self:formcreated(s) then
+	if not self.optional or next(self.section.tabs) or self:cfgvalue(s) or self:formcreated(s) then
 		scope = scope or {}
 		scope.section   = s
 		scope.cbid      = self:cbid(s)
@@ -1339,12 +1339,20 @@ end
 -- Validate the form value
 function AbstractValue.validate(self, value)
 	if self.datatype and value and datatypes[self.datatype] then
-		if datatypes[self.datatype](value) then
-			return value
+		if type(value) == "table" then
+			local v
+			for _, v in ipairs(value) do
+				if v and #v > 0 and not datatypes[self.datatype](v) then
+					return nil
+				end
+			end
+		else
+			if not datatypes[self.datatype](value) then
+				return nil
+			end
 		end
-	else
-		return value
 	end
+	return value
 end
 
 AbstractValue.transform = AbstractValue.validate

libs/cbi/luasrc/view/cbi/dynlist.htm

@@ -1,7 +1,7 @@
 <%#
 LuCI - Lua Configuration Interface
 Copyright 2008 Steven Barth <steven@midlink.org>
-Copyright 2008 Jo-Philipp Wich <xm@leipzig.freifunk.net>
+Copyright 2008-2010 Jo-Philipp Wich <xm@subsignal.org>
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
@@ -42,4 +42,11 @@ $Id$
 	<% end -%>
 <% if i <= #vals then %><br />
 <% end end %>
+<% if self.datatype then -%>
+	<script type="text/javascript">
+		<% for i=1, #vals + 1 do -%>
+		cbi_validate_field('<%=cbid%>.<%=i%>', <%=tostring(self.optional == true or i > #vals)%>, '<%=self.datatype%>');
+		<%- end %>
+	</script>
+<% end -%>
 <%+cbi/valuefooter%>

libs/cbi/luasrc/view/cbi/ucisection.htm

@@ -31,7 +31,17 @@ $Id$
 
 <% if self.error and self.error[section] then -%>
 	<div class="cbi-section-error">
-		<ul><% for _, e in ipairs(self.error[section]) do %><li><%=pcdata(e):gsub("\n","<br />")%></li><% end %></ul>
+		<ul><% for _, e in ipairs(self.error[section]) do -%>
+			<li>
+				<%- if e == "invalid" then -%>
+					<%:One or more fields contain invalid values!%>
+				<%- elseif e == "missing" then -%>
+					<%:One or more required fields have no value!%>
+				<%- else -%>
+					<%=pcdata(e)%>
+				<%- end -%>
+			</li>
+		<%- end %></ul>
 	</div>
 <%- end %>