luci-base: add cbi tsection error msg option

In some situation it is usefull to inform the use that this section
could not get delete, because this config is referenced or is in use.

Example pseudo code:

function s.remove(self, sid)
	<check if secation could get deleted>
	if output == nil then
		self.error_msg = translatef("Unable to remove this section")
		return nil
	end
end

Signed-off-by: Florian Eckert <fe@dev.tdt.de>

1 files changed, 5 insertions, 0 deletions

diff --git a/modules/luci-base/luasrc/view/cbi/tsection.htm b/modules/luci-base/luasrc/view/cbi/tsection.htm
index 547a79332..8f3b7f0ff 100644
--- a/modules/luci-base/luasrc/view/cbi/tsection.htm
+++ b/modules/luci-base/luasrc/view/cbi/tsection.htm
@@ -2,6 +2,11 @@
 	<% if self.title and #self.title > 0 then -%>
 		<legend><%=self.title%></legend>
 	<%- end %>
+	<% if self.error_msg and #self.error_msg > 0 then -%>
+		<div class="cbi-section-error">
+			<%=self.error_msg%>
+		</div>
+	<%- end %>
 	<% if self.description and #self.description > 0 then -%>
 		<div class="cbi-section-descr"><%=self.description%></div>
 	<%- end %>