Field rule context. (#668)

frontend/app/features/content/pages/content/content-page.component.ts

@@ -88,7 +88,7 @@ export class ContentPageComponent extends ResourceOwner implements CanComponentD
                 .subscribe(schema => {
                     this.schema = schema;
 
-                    this.contentForm = new EditContentForm(this.languages, this.schema, this.formContext.user);
+                    this.contentForm = new EditContentForm(this.languages, this.schema, this.formContext);
                 }));
 
         this.own(
@@ -96,9 +96,10 @@ export class ContentPageComponent extends ResourceOwner implements CanComponentD
                 .subscribe(content => {
                     const isNewContent = isOtherContent(content, this.content);
 
-                    this.content = content;
+                    this.formContext['initialContent'] = content;
 
-                    this.formContext['initialContent'] = this.content;
+                    this.content = content;
+                    this.contentForm.setContext(this.formContext);
 
                     this.autoSaveKey = {
                         schemaId: this.schema.id,
@@ -251,7 +252,7 @@ export class ContentPageComponent extends ResourceOwner implements CanComponentD
             this.contentsState.loadVersion(content, version)
                 .subscribe(dto => {
                     if (compare) {
-                        this.contentFormCompare = new EditContentForm(this.languages, this.schema, this.formContext.user);
+                        this.contentFormCompare = new EditContentForm(this.languages, this.schema, this.formContext);
 
                         this.contentFormCompare.load(dto.payload);
                         this.contentFormCompare.setEnabled(false);

frontend/app/features/content/shared/references/content-creator.component.ts

@@ -66,7 +66,7 @@ export class ContentCreatorComponent extends ResourceOwner implements OnInit {
                     this.schema = schema;
 
                     this.contentsState.schema = schema;
-                    this.contentForm = new EditContentForm(this.languages, this.schema, this.formContext.user);
+                    this.contentForm = new EditContentForm(this.languages, this.schema, { user: this.formContext.user });
 
                     this.changeDetector.markForCheck();
                 }

frontend/app/shared/state/contents.forms-helpers.ts

@@ -89,7 +89,7 @@ export class CompiledRule {
         private readonly rule: FieldRule
     ) {
         try {
-            this.function = new Function(`return function(user, data, itemData) { return ${rule.condition} }`)();
+            this.function = new Function(`return function(user, ctx, data, itemData) { return ${rule.condition} }`)();
         } catch {
             this.function = () => false;
         }
@@ -97,7 +97,7 @@ export class CompiledRule {
 
     public eval(context: RuleContext) {
         try {
-            return this.function(context.user, context.data, context.itemData);
+            return this.function(context.user, context, context.data, context.itemData);
         } catch {
             return false;
         }

frontend/app/shared/state/contents.forms.spec.ts

@@ -276,6 +276,25 @@ describe('ContentForm', () => {
             expectForm(contentForm.form, 'field3.de', { invalid: false });
         });
 
+        it('should require field based on context condition', () => {
+            const contentForm = createForm([
+                createField({ id: 1, properties: createProperties('Number'), partitioning: 'invariant' }),
+                createField({ id: 2, properties: createProperties('Number'), partitioning: 'invariant' })
+            ], [{
+                field: 'field1', action: 'Require', condition: 'ctx.value < 100'
+            }]);
+
+            contentForm.setContext({ value: 50 });
+
+            const field1 = contentForm.get('field1')!.get('iv');
+
+            expect(field1!.form.valid).toBeFalsy();
+
+            contentForm.setContext({ value: 120 });
+
+            expect(field1!.form.valid).toBeTruthy();
+        });
+
         it('should require field based on condition', () => {
             const contentForm = createForm([
                 createField({ id: 1, properties: createProperties('Number'), partitioning: 'invariant' }),

frontend/app/shared/state/contents.forms.ts

@@ -92,7 +92,7 @@ export class EditContentForm extends Form<FormGroup, any> {
     }
 
     constructor(languages: ReadonlyArray<AppLanguageDto>, schema: SchemaDetailsDto,
-        private readonly user: any = {}, debounce = 100
+        private context: any, debounce = 100
     ) {
         super(new FormGroup({}));
 
@@ -184,6 +184,12 @@ export class EditContentForm extends Form<FormGroup, any> {
         this.updateState(this.value);
     }
 
+    public setContext(context?: any) {
+        this.context = context;
+
+        this.updateState(this.value);
+    }
+
     public submitCompleted(options?: { newValue?: any, noReset?: boolean }) {
         super.submitCompleted(options);
 
@@ -191,7 +197,7 @@ export class EditContentForm extends Form<FormGroup, any> {
     }
 
     private updateState(data: any) {
-        const context = { user: this.user, data };
+        const context = { ...this.context || {}, data };
 
         for (const field of Object.values(this.fields)) {
             field.updateState(context, { isDisabled: this.form.disabled });