[AAE-3273] Manage empty option in retrieve content metadata dropdowns (#6024)

* AAE-3273 Manage empty option in retrieve content metadata dropdowns

* AAE-3273 Add unit tests

* AAE-3273 Refactor add not present fields

* AAE-3273 Add unit test in core

lib/core/form/components/widgets/core/form.model.spec.ts

@@ -24,6 +24,7 @@ import { FormFieldModel } from './form-field.model';
 import { FormOutcomeModel } from './form-outcome.model';
 import { FormModel } from './form.model';
 import { TabModel } from './tab.model';
+import { fakeMetadataForm } from 'process-services-cloud/src/lib/form/mocks/cloud-form.mock';
 
 describe('FormModel', () => {
     let formService: FormService;
@@ -558,4 +559,34 @@ describe('FormModel', () => {
             expect(missing).toBeUndefined();
         });
     });
+
+    describe('add values not present', () => {
+        let form: FormModel;
+
+        beforeEach(() => {
+            form = new FormModel(fakeMetadataForm);
+            form.values['pfx_property_three'] = {};
+            form.values['pfx_property_four'] = 'empty';
+            form.values['pfx_property_five'] = 'green';
+        });
+
+        it('should not find a process variable', () => {
+            const values = {
+                pfx_property_one: 'testValue',
+                pfx_property_two: true,
+                pfx_property_three: 'opt_1',
+                pfx_property_four: 'option_2',
+                pfx_property_five: 'orange',
+                pfx_property_none: 'no_form_field'
+            };
+
+            const data = form.addValuesNotPresent(values);
+
+            expect(data).toContain({ name: 'pfx_property_one', value: 'testValue' });
+            expect(data).toContain({ name: 'pfx_property_two', value: true });
+            expect(data).toContain({ name: 'pfx_property_three', value: 'opt_1' });
+            expect(data).toContain({ name: 'pfx_property_four', value: 'option_2' });
+            expect(data).toContain({ name: 'pfx_property_five', value: 'green' });
+        });
+    });
 });

lib/core/form/components/widgets/core/form.model.ts

@@ -375,4 +375,24 @@ export class FormModel {
             );
         }
     }
+
+    addValuesNotPresent(valuesToSetIfNotPresent: FormValues): { name: string; value: any }[] {
+        const keys = Object.keys(valuesToSetIfNotPresent);
+        keys.forEach(key => {
+            if (!this.values[key] || this.isEmptyDropdownOption(key)) {
+                this.values[key] = valuesToSetIfNotPresent[key];
+            }
+        });
+        const data = [];
+        const fields = Object.keys(this.values);
+        fields.forEach(field => data.push({ name: field, value: this.values[field] }));
+        return data;
+    }
+
+    private isEmptyDropdownOption(key: string): boolean {
+        if (this.getFieldById(key) && (this.getFieldById(key).type === FormFieldTypes.DROPDOWN)) {
+            return typeof this.values[key] === 'string' ? this.values[key] === 'empty' : Object.keys(this.values[key]).length === 0;
+        }
+        return false;
+    }
 }