Added method for triggers to check whether they match all transactions

app/Rules/Triggers/AmountMore.php

@@ -62,4 +62,13 @@ class AmountMore implements TriggerInterface
         return false;
 
     }
+    
+    /**
+     * Checks whether this trigger will match all transactions
+     * This happens when the trigger_value is zero
+     * @return bool
+     */
+    public function matchesAnything() { 
+        return bccomp('0', $this->trigger->trigger_value) === 0; 
+    }
 }