Validation for prices and objection

src/common/validators/objection-part-content.validator.ts

@@ -0,0 +1,29 @@
+import {
+  ValidationArguments,
+  ValidatorConstraint,
+  ValidatorConstraintInterface,
+} from "class-validator";
+
+@ValidatorConstraint({ name: "objectionPartHasContent", async: false })
+export class ObjectionPartHasContentConstraint
+  implements ValidatorConstraintInterface
+{
+  validate(_value: unknown, args: ValidationArguments): boolean {
+    const o = args.object as {
+      reason?: string;
+      partPrice?: string;
+      partSalary?: string;
+    };
+    const hasReason =
+      typeof o.reason === "string" && o.reason.trim().length >= 3;
+    const hasPrice =
+      o.partPrice != null && String(o.partPrice).trim() !== "";
+    const hasSalary =
+      o.partSalary != null && String(o.partSalary).trim() !== "";
+    return hasReason || hasPrice || hasSalary;
+  }
+
+  defaultMessage(): string {
+    return "Each objection line needs a reason (min 3 characters) and/or proposed partPrice / partSalary.";
+  }
+}