Added autopopulate function to handle autopopulated inputs

projects/ngx-formentry/src/abstract-controls-extension/afe-form-control.ts

@@ -23,6 +23,7 @@ import { HiderHelper } from '../form-entry/control-hiders-disablers/hider-helper
 import { AlertHelper } from '../form-entry/control-alerts/alert-helpers';
 import { DisablerHelper } from '../form-entry/control-hiders-disablers/disabler-helper';
 import { CanCalculate } from '../form-entry/control-calculators/can-calculate';
+import { CanAutopopulate } from '../form-entry/can-autopopulate/can-autopopulate';
 import { ExpressionRunner } from '../form-entry/expression-runner/expression-runner';
 
 class AfeFormControl
@@ -31,6 +32,7 @@ class AfeFormControl
     CanHide,
     CanDisable,
     CanCalculate,
+    CanAutopopulate,
     CanGenerateAlert,
     ValueChangeListener {
   private _controlRelations: ControlRelations;
@@ -44,6 +46,7 @@ class AfeFormControl
   alert: string;
   alerts: Alert[];
   calculator: Function;
+  autopopulate: Function;
   disablers: Disabler[];
 
   private hiderHelper: HiderHelper = new HiderHelper();
@@ -100,6 +103,17 @@ class AfeFormControl
     }
   }
 
+  setAutopopulateFn(newAutopopulate: Function) {
+    this.autopopulate = newAutopopulate;
+  }
+
+  updateAutopopulatedValue() {
+    if (this.autopopulate) {
+      const _val = this.autopopulate.call(ExpressionRunner, {});
+      this.setValue(_val);
+    }
+  }
+
   clearHidingFns() {
     this.hiderHelper.clearHidersForControl(this);
   }

projects/ngx-formentry/src/change-tracking/control-relation.ts

@@ -34,6 +34,10 @@ export class ControlRelation {
         (this._control as any).updateCalculatedValue();
       }
 
+      if ((this._control as any).updateAutopopulatedValue) {
+        (this._control as any).updateAutopopulatedValue();
+      }
+
       this._control.updateValueAndValidity();
       if ((this._control as any).updateHiddenState) {
         (this._control as any).updateHiddenState();

projects/ngx-formentry/src/form-entry/can-autopopulate/can-autopopulate.ts

@@ -0,0 +1,5 @@
+export interface CanAutopopulate {
+  autopopulate: Function;
+  setAutopopulateFn(newAutopopulate: Function);
+  updateAutopopulatedValue();
+}

projects/ngx-formentry/src/form-entry/expression-runner/expression-runner.ts

@@ -17,6 +17,7 @@ export class ExpressionRunner {
     expression: string,
     control: AfeFormArray | AfeFormGroup | AfeFormControl,
     helper: any,
+    autopopulate: any,
     dataDependencies: any,
     form?: Form
   ): Runnable {
@@ -35,6 +36,7 @@ export class ExpressionRunner {
         runner.setControlQuestion(control, form, scope);
         runner.getControlRelationValueString(control, scope);
         runner.getHelperMethods(helper, scope);
+        runner.getAutopopulateMethods(autopopulate, scope);
         runner.getDataDependencies(dataDependencies, scope);
         if (form) {
           // console.error('Form defined', form);
@@ -161,7 +163,7 @@ export class ExpressionRunner {
     ) {
       control.controlRelations.relations.forEach((relation) => {
         const related = relation.relatedTo as any;
-        const question = form.searchNodeByQuestionId(related.uuid)[0]?.question
+        const question = form?.searchNodeByQuestionId(related.uuid)[0]?.question
           ?.extras;
         scope['FORM'][related.uuid] = question;
       });
@@ -217,6 +219,14 @@ export class ExpressionRunner {
     }
   }
 
+  private getAutopopulateMethods(obj: any, scope?: any) {
+    for (const key in obj) {
+      if (obj.hasOwnProperty(key)) {
+        scope[key] = obj[key];
+      }
+    }
+  }
+
   private getDataDependencies(obj: any, scope?: any) {
     for (const key in obj) {
       if (obj.hasOwnProperty(key)) {

projects/ngx-formentry/src/form-entry/form-entry.module.ts

@@ -24,6 +24,7 @@ import { HidersDisablersFactory } from './form-factory/hiders-disablers.factory'
 import { AlertsFactory } from './form-factory/show-messages.factory';
 import { ExpressionRunner } from './expression-runner/expression-runner';
 import { JsExpressionHelper } from './helpers/js-expression-helper';
+import { JsExpressionAutopopulate } from './helpers/autopopulate-expression-helper';
 import { FormSchemaCompiler } from './services/form-schema-compiler.service';
 import { FormFactory } from './form-factory/form.factory';
 import { QuestionFactory } from './form-factory/question.factory';
@@ -83,6 +84,7 @@ import { CustomComponentWrapperModule } from '../components/custom-component-wra
     AlertsFactory,
     ExpressionRunner,
     JsExpressionHelper,
+    JsExpressionAutopopulate,
     HistoricalFieldHelperService,
     FormSchemaCompiler,
     FormFactory,

projects/ngx-formentry/src/form-entry/form-factory/control-relations.factory.ts

@@ -119,6 +119,8 @@ export class ControlRelationsFactory {
                     | AfeFormArray).addValueChangeListener((value) => {
                     if ((rootControl as any).updateCalculatedValue) {
                       (rootControl as any).updateCalculatedValue();
+                    } else if ((rootControl as any).updateAutopopulatedValue) {
+                      (rootControl as any).updateAutopopulatedValue();
                     }
 
                     rootControl.updateValueAndValidity();
@@ -292,6 +294,13 @@ export class ControlRelationsFactory {
       questionBase.calculateExpression.indexOf(id) !== -1
     ) {
       hasRelation = true;
+    } else if (
+      !hasRelation &&
+      questionBase.autopopulateExpression &&
+      questionBase.autopopulateExpression.length > 0 &&
+      questionBase.autopopulateExpression.indexOf(id) !== -1
+    ) {
+      hasRelation = true;
     }
 
     return hasRelation;

projects/ngx-formentry/src/form-entry/form-factory/form-control.service.ts

@@ -21,7 +21,7 @@ import {
   Runnable
 } from '../expression-runner/expression-runner';
 import { JsExpressionHelper } from '../helpers/js-expression-helper';
-
+import { JsExpressionAutopopulate } from '../helpers/autopopulate-expression-helper';
 @Injectable()
 export class FormControlService {
   controls = [];
@@ -145,6 +145,12 @@ export class FormControlService {
       form,
       form.dataSourcesContainer.dataSources
     );
+    this.wireAutopopulator(
+      question,
+      control,
+      form,
+      form.dataSourcesContainer.dataSources
+    );
 
     if (parentControl instanceof AfeFormGroup) {
       parentControl.setControl(question.key, control);
@@ -211,4 +217,27 @@ export class FormControlService {
       control.setCalculatorFn(runnable.run);
     }
   }
+  // autopopulate values based on previous inputs
+  private wireAutopopulator(
+    question: QuestionBase,
+    control: AfeFormControl,
+    form: Form,
+    dataSource?: any
+  ) {
+    if (
+      question.autopopulateExpression &&
+      question.autopopulateExpression !== ''
+    ) {
+      const autopopulate: JsExpressionAutopopulate = new JsExpressionAutopopulate();
+      const runner: ExpressionRunner = new ExpressionRunner();
+      const runnable: Runnable = runner.getRunnable(
+        question.autopopulateExpression,
+        control,
+        autopopulate.autopopulateFunctions,
+        dataSource,
+        form
+      );
+      control.setAutopopulateFn(runnable.run);
+    }
+  }
 }

projects/ngx-formentry/src/form-entry/form-factory/hiders-disablers.factory.ts

@@ -14,6 +14,7 @@ import {
 } from '../../abstract-controls-extension';
 import { QuestionBase } from '../question-models/question-base';
 import { JsExpressionHelper } from '../helpers/js-expression-helper';
+import { JsExpressionAutopopulate } from '../helpers/autopopulate-expression-helper';
 import { Form } from './form';
 // Add ability to display all fields for debugging
 import { DebugModeService } from './../services/debug-mode.service';
@@ -23,6 +24,7 @@ export class HidersDisablersFactory {
   constructor(
     private expressionRunner: ExpressionRunner,
     private expressionHelper: JsExpressionHelper,
+    private expressionAutopopulate: JsExpressionAutopopulate,
     private _debugModeService: DebugModeService
   ) {}
 
@@ -35,6 +37,7 @@ export class HidersDisablersFactory {
       question.disable as string,
       control,
       this.expressionHelper.helperFunctions,
+      this.expressionAutopopulate.autopopulateFunctions,
       {},
       form
     );

projects/ngx-formentry/src/form-entry/form-factory/question.factory.ts

@@ -79,6 +79,7 @@ export class QuestionFactory {
     this.addAlertProperty(schemaQuestion, question);
     this.addHistoricalExpressions(schemaQuestion, question);
     this.addCalculatorProperty(schemaQuestion, question);
+    this.addAutopoulateProperty(schemaQuestion, question);
     return question;
   }
 
@@ -108,6 +109,7 @@ export class QuestionFactory {
     this.addAlertProperty(schemaQuestion, question);
     this.addHistoricalExpressions(schemaQuestion, question);
     this.addCalculatorProperty(schemaQuestion, question);
+    this.addAutopoulateProperty(schemaQuestion, question);
     return question;
   }
 
@@ -137,6 +139,7 @@ export class QuestionFactory {
     this.addAlertProperty(schemaQuestion, question);
     this.addHistoricalExpressions(schemaQuestion, question);
     this.addCalculatorProperty(schemaQuestion, question);
+    this.addAutopoulateProperty(schemaQuestion, question);
     return question;
   }
 
@@ -165,6 +168,7 @@ export class QuestionFactory {
     this.addAlertProperty(schemaQuestion, question);
     this.addHistoricalExpressions(schemaQuestion, question);
     this.addCalculatorProperty(schemaQuestion, question);
+    this.addAutopoulateProperty(schemaQuestion, question);
     return question;
   }
 
@@ -194,6 +198,7 @@ export class QuestionFactory {
     this.addAlertProperty(schemaQuestion, question);
     this.addHistoricalExpressions(schemaQuestion, question);
     this.addCalculatorProperty(schemaQuestion, question);
+    this.addAutopoulateProperty(schemaQuestion, question);
     return question;
   }
 
@@ -224,6 +229,7 @@ export class QuestionFactory {
     this.addAlertProperty(schemaQuestion, question);
     this.addHistoricalExpressions(schemaQuestion, question);
     this.addCalculatorProperty(schemaQuestion, question);
+    this.addAutopoulateProperty(schemaQuestion, question);
     return question;
   }
 
@@ -260,6 +266,7 @@ export class QuestionFactory {
     this.addAlertProperty(schemaQuestion, question);
     this.addHistoricalExpressions(schemaQuestion, question);
     this.addCalculatorProperty(schemaQuestion, question);
+    this.addAutopoulateProperty(schemaQuestion, question);
     return question;
   }
 
@@ -292,6 +299,7 @@ export class QuestionFactory {
     this.addAlertProperty(schemaQuestion, question);
     this.addHistoricalExpressions(schemaQuestion, question);
     this.addCalculatorProperty(schemaQuestion, question);
+    this.addAutopoulateProperty(schemaQuestion, question);
     return question;
   }
 
@@ -320,6 +328,7 @@ export class QuestionFactory {
     this.addAlertProperty(schemaQuestion, question);
     this.addHistoricalExpressions(schemaQuestion, question);
     this.addCalculatorProperty(schemaQuestion, question);
+    this.addAutopoulateProperty(schemaQuestion, question);
     return question;
   }
 
@@ -344,6 +353,7 @@ export class QuestionFactory {
     this.addAlertProperty(schemaQuestion, question);
     this.addHistoricalExpressions(schemaQuestion, question);
     this.addCalculatorProperty(schemaQuestion, question);
+    this.addAutopoulateProperty(schemaQuestion, question);
     return question;
   }
 
@@ -367,6 +377,7 @@ export class QuestionFactory {
     this.addAlertProperty(schemaQuestion, question);
     this.addHistoricalExpressions(schemaQuestion, question);
     this.addCalculatorProperty(schemaQuestion, question);
+    this.addAutopoulateProperty(schemaQuestion, question);
     return question;
   }
 
@@ -390,6 +401,7 @@ export class QuestionFactory {
     this.addAlertProperty(schemaQuestion, question);
     this.addHistoricalExpressions(schemaQuestion, question);
     this.addCalculatorProperty(schemaQuestion, question);
+    this.addAutopoulateProperty(schemaQuestion, question);
     return question;
   }
 
@@ -417,6 +429,7 @@ export class QuestionFactory {
     this.addAlertProperty(schemaQuestion, question);
     this.addHistoricalExpressions(schemaQuestion, question);
     this.addCalculatorProperty(schemaQuestion, question);
+    this.addAutopoulateProperty(schemaQuestion, question);
     return question;
   }
 
@@ -453,6 +466,7 @@ export class QuestionFactory {
     this.addAlertProperty(schemaQuestion, question);
     this.addHistoricalExpressions(schemaQuestion, question);
     this.addCalculatorProperty(schemaQuestion, question);
+    this.addAutopoulateProperty(schemaQuestion, question);
     return question;
   }
 
@@ -478,6 +492,7 @@ export class QuestionFactory {
     this.addAlertProperty(schemaQuestion, question);
     this.addHistoricalExpressions(schemaQuestion, question);
     this.addCalculatorProperty(schemaQuestion, question);
+    this.addAutopoulateProperty(schemaQuestion, question);
     return question;
   }
 
@@ -553,6 +568,7 @@ export class QuestionFactory {
     this.addAlertProperty(schemaQuestion, question);
     this.addHistoricalExpressions(schemaQuestion, question);
     this.addCalculatorProperty(schemaQuestion, question);
+    this.addAutopoulateProperty(schemaQuestion, question);
     return question;
   }
 
@@ -583,6 +599,7 @@ export class QuestionFactory {
     this.addAlertProperty(schemaQuestion, question);
     this.addHistoricalExpressions(schemaQuestion, question);
     this.addCalculatorProperty(schemaQuestion, question);
+    this.addAutopoulateProperty(schemaQuestion, question);
     return question;
   }
 
@@ -621,6 +638,7 @@ export class QuestionFactory {
     this.addAlertProperty(schemaQuestion, question);
     this.addHistoricalExpressions(schemaQuestion, question);
     this.addCalculatorProperty(schemaQuestion, question);
+    this.addAutopoulateProperty(schemaQuestion, question);
     return question;
   }
 
@@ -964,6 +982,16 @@ export class QuestionFactory {
     }
   }
 
+  addAutopoulateProperty(schemaQuestion: any, question: QuestionBase): any {
+    if (
+      schemaQuestion.questionOptions &&
+      typeof schemaQuestion.questionOptions.autopopulate === 'object'
+    ) {
+      question.autopopulateExpression =
+        schemaQuestion.questionOptions.autopopulate.autopopulateExpression;
+    }
+  }
+
   addAlertProperty(schemaQuestion: any, question: QuestionBase): any {
     if (schemaQuestion.alert) {
       question.alert = schemaQuestion.alert;

projects/ngx-formentry/src/form-entry/form-factory/show-messages.factory.ts

@@ -14,12 +14,14 @@ import {
 import { QuestionBase } from '../question-models/question-base';
 import { JsExpressionHelper } from '../helpers/js-expression-helper';
 import { Form } from './form';
+import { JsExpressionAutopopulate } from '../helpers/autopopulate-expression-helper';
 
 @Injectable()
 export class AlertsFactory {
   constructor(
     private expressionRunner: ExpressionRunner,
-    private expressionHelper: JsExpressionHelper
+    private expressionHelper: JsExpressionHelper,
+    private expressionAutopopulate: JsExpressionAutopopulate,
   ) {}
   getJsExpressionshowAlert(
     question: QuestionBase,
@@ -30,6 +32,7 @@ export class AlertsFactory {
       question.alert.alertWhenExpression,
       control,
       this.expressionHelper.helperFunctions,
+      this.expressionAutopopulate.autopopulateFunctions,
       {},
       form
     );