Merge branch '2021.0_1075968_offercurrency' into '2021.0'

[Projekt: xRM-Sales][TicketNr.: 1075968][Preise in Fremdwährung werden nicht...

See merge request xrm/basic!788

entity/Offer_entity/entityfields/currency/stateProcess.js

@@ -2,5 +2,18 @@ import("system.vars");
 import("system.result");
 import("system.neon");
 import("Offer_lib");
+import("system.entities");
 
-result.string(OfferUtils.isEditable(vars.get("$field.STATUS")) ? neon.COMPONENTSTATE_AUTO : neon.COMPONENTSTATE_DISABLED);
\ No newline at end of file
+var loadConfig = entities.createConfigForLoadingRows()
+    .entity("OfferItem_entity")
+    .addParameter("OfferId_param", vars.get("$field.OFFERID"));
+var offerItemCount = entities.getRowCount(loadConfig);
+
+if(offerItemCount > 0)
+{
+    result.string(neon.COMPONENTSTATE_DISABLED);
+}
+else
+{
+    result.string(OfferUtils.isEditable(vars.get("$field.STATUS")) ? neon.COMPONENTSTATE_AUTO : neon.COMPONENTSTATE_DISABLED);
+}