1 files changed, 24 insertions, 0 deletions

diff --git a/client/src/app/shared/forms/form-reactive.ts b/client/src/app/shared/forms/form-reactive.ts
new file mode 100644
index 000000000..1e8a69771
--- /dev/null
+++ b/client/src/app/shared/forms/form-reactive.ts
@@ -0,0 +1,24 @@
+import { FormGroup } from '@angular/forms';
+
+export abstract class FormReactive {
+  abstract form: FormGroup;
+  abstract formErrors: Object;
+  abstract validationMessages: Object;
+
+  abstract buildForm(): void;
+
+  protected onValueChanged(data?: any) {
+    for (const field in this.formErrors) {
+      // clear previous error message (if any)
+      this.formErrors[field] = '';
+      const control = this.form.get(field);
+
+      if (control && control.dirty && !control.valid) {
+        const messages = this.validationMessages[field];
+        for (const key in control.errors) {
+          this.formErrors[field] += messages[key] + ' ';
+        }
+      }
+    }
+  }
+}