add max_amount config field and functionality

1 files changed, 7 insertions, 0 deletions

diff --git a/abrechenbarkeit.lua b/abrechenbarkeit.lua
index 5421d5a..2496a1b 100755
--- a/abrechenbarkeit.lua
+++ b/abrechenbarkeit.lua
@@ -385,6 +385,13 @@ local function r_transaction_post()
     local pcount = tonumber(data.pcount)
     local comment = data.comment
     local pname = data.pname
+	local max_amount = tonumber(config["max_amount"]) or 9999999999999
+
+    if math.abs(amount) >  max_amount then
+    	return error_box(format("{+error.invalid_amount} - {+max_amount}", {
+    		amount = format_amount(math.abs(max_amount)),
+    	}))
+    end
 
     if pname ~= nil or (pcode ~= nil and pcode ~= "") then
         -- check if barcode exists